2021-03-18  Youenn Fablet  <youenn@apple.com>

        Move camera GPU Process flag to experimental
        https://bugs.webkit.org/show_bug.cgi?id=223374

        Reviewed by Eric Carlson.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        * Scripts/Preferences/WebPreferencesInternal.yaml:

2021-03-17  Saam Barati  <sbarati@apple.com>

        Make sure we only set HAVE_VM_FLAGS_PERMANENT to 1 when targeting macOS >= 11.0
        https://bugs.webkit.org/show_bug.cgi?id=223408

        Reviewed by Alexey Proskuryakov.

        * wtf/PlatformHave.h:

2021-03-17  Mark Lam  <mark.lam@apple.com>

        Fix race condition in ConcurrentPtrHashSet.
        https://bugs.webkit.org/show_bug.cgi?id=223241
        rdar://74637896

        Reviewed by Yusuke Suzuki.

        There exists a race condition where ConcurrentPtrHashSet::resizeIfNecessary() may
        not capture an entry added by ConcurrentPtrHashSet::addSlow() concurrently.

        ConcurrentPtrHashSet::addSlow() currently does the following:

            {
                if (table->load.exchangeAdd(1) >= table->maxLoad())     // (a1)
                    return resizeAndAdd(ptr);                           // (a2)
    
                for (;;) {
                    void* oldEntry = table->array[index].compareExchangeStrong(nullptr, ptr);   // (a3)
                    if (!oldEntry) {
                        if (m_table.load() != table) {                  // (a4)
                            // We added an entry to an old table! We need to reexecute the add on the new table.
                            return add(ptr);                            // (a5)
                        }
                        return true;                                    // (a6)
                    }
                    if (oldEntry == ptr)
                        return false;

                    ... // set index to next entry slot to try.
                }
            }

        ConcurrentPtrHashSet::resizeIfNecessary() currently does the following:

            {
                auto locker = holdLock(m_lock);                         // (r1)
                Table* table = m_table.loadRelaxed();
                if (table->load.loadRelaxed() < table->maxLoad())
                    return;

                // (r2)

                std::unique_ptr<Table> newTable = Table::create(table->size * 2);
                ...
                for (unsigned i = 0; i < table->size; ++i) {            // (r3)
                    void* ptr = table->array[i].loadRelaxed();
                    if (!ptr)
                        continue;
        
                    ... // copy ptr to newTable.                        // (r4)
                }
    
                ...
                m_table.store(newTable.get());                          // (r5)
                ...
            }

        Let's say thread T1 is executing addSlow(), and thread T2 is concurrently executing
        resizeIfNecessary().

        Consider the following scenario (in chronological order):
        1. T2 has arrived at just before (r5) i.e. it is already done copying the entries
           in the old m_table.  
        2. T1 executes (a3) and writes a new entry into m_table.
        3. T1 checks that the table hasn't been replaced at (a4), and sees that it has
           not.
        4. T1 returns at (a6), thinking that its new entry is committed.
        5. T2 sets the new m_table at (r5), thereby discarding the new entry that T1 has
           just written.

        The fix is to set m_table to a newly introduced m_stubTable at (r2).  m_stubTable
        is set up with a size of 0, and load value of 10.  This means it is always full.
        With this, the following scenarios can play out:

        Scenario 1: T2 installs m_stubTable before T1 reaches (a1)

        1. At (a1), T1 sees that m_table (which is m_stubTable) is full.
        2. T1 calls resizeAndAdd() at (a2), which ends up calling resizeIfNecessary()
           and blocking on the lock at (r1).

        Scenario 2: T2 installs m_stubTable after T1 reaches just before (a3)

        1. T1 writes the new entry at (a3).
        2. T1 checks m_table at (a4), and sees that it has changed (now pointing to
           m_stubTable).
        3. T1 calls add() again at (a5) to redo the operation, and ends with scenario 1.

        Scenario 3: T2 installs m_stubTable after T1 reaches (a3), but before (a4)

        1. The new entry has already been added, but we don't know if it made the cut off
           for T2 to copy it or not.  But, it doesn't matter because ...
        2. T1 checks m_table at (a4), and sees that it has changed (now pointing to
           m_stubTable).
        3. T1 calls add() again at (a5) to redo the operation, and ends with scenario 1.

        Scenario 4: T2 installs m_stubTable after T1 reaches (a4)

        1. The new entry has already been added.
        2. T1 checks m_table at (a4), and sees that it has NOT changed (because T2 hasn't
           installed m_stubTable yet).  This means T2's copy loop is guaranteed to not
           have started yet i.e. the new entry will definitely be picked up by the copy
           loop.
        3. T1 returns at (a6), and all is well.

        * wtf/ConcurrentPtrHashSet.cpp:
        (WTF::ConcurrentPtrHashSet::deleteOldTables):
        (WTF::ConcurrentPtrHashSet::initialize):
        (WTF::ConcurrentPtrHashSet::containsImplSlow const):
        (WTF::ConcurrentPtrHashSet::sizeSlow const):
        (WTF::ConcurrentPtrHashSet::resizeIfNecessary):
        (WTF::ConcurrentPtrHashSet::Table::initializeStub):
        * wtf/ConcurrentPtrHashSet.h:

2021-03-17  Alex Christensen  <achristensen@webkit.org>

        Reduce maximum HashTable entry size to 250 bytes
        https://bugs.webkit.org/show_bug.cgi?id=223398

        Reviewed by Yusuke Suzuki.

        * wtf/HashTable.h:
        (WTF::KeyTraits>::inlineLookup):

2021-03-17  Saam Barati  <sbarati@apple.com>

        Determine if we have useFastJITPermissions on arm64e at runtime instead of hardcoding it as always enabled
        https://bugs.webkit.org/show_bug.cgi?id=223388
        <rdar://74819266>

        Reviewed by Mark Lam.

        * wtf/PlatformEnableCocoa.h:
        * wtf/PlatformUse.h:

2021-03-17  Chris Dumez  <cdumez@apple.com>

        Memory limit per tab shrinks as you open tabs in the same WebContent process (may affect Google Drive, Dropbox, etc.)
        https://bugs.webkit.org/show_bug.cgi?id=223394
        <rdar://75499387>

        Reviewed by Geoffrey Garen.

        Make sure the process memory limit scales with the number of web pages it holds (without cap on the number of
        pages).

        * wtf/MemoryPressureHandler.cpp:
        (WTF::thresholdForMemoryKillOfInactiveProcess):

2021-03-17  Brent Fulgham  <bfulgham@apple.com>

        [Cocoa] Populate NSURLSession with attributed bundle ID
        https://bugs.webkit.org/show_bug.cgi?id=223382
        <rdar://problem/75498230>

        Reviewed by Alex Christensen.

        Add new HAVE_CFNETWORK_NSURLSESSION_ATTRIBUTED_BUNDLE_IDENTIFIER macro.

        * wtf/PlatformHave.h:

2021-03-17  Alex Christensen  <achristensen@webkit.org>

        Allow UniqueRef to be the value of a HashMap
        https://bugs.webkit.org/show_bug.cgi?id=223240

        Reviewed by Youenn Fablet.

        This has the advantage over std::unique_ptr of never providing a null value when you iterate HashMap.values

        * wtf/HashIterators.h:
        (WTF::HashTableConstValuesIterator::get const):
        * wtf/HashTraits.h:
        (WTF::HashTraits<UniqueRef<T>>::emptyValue):
        (WTF::HashTraits<UniqueRef<T>>::constructDeletedValue):
        (WTF::HashTraits<UniqueRef<T>>::isDeletedValue):
        (WTF::HashTraits<UniqueRef<T>>::peek):
        (WTF::HashTraits<UniqueRef<T>>::take):

2021-03-16  Devin Rousso  <drousso@apple.com>

        [macOS] change for the language/subtitle tracks button to use an `NSMenu` instead of web content
        https://bugs.webkit.org/show_bug.cgi?id=223239
        <rdar://problem/75462340>

        Reviewed by Eric Carlson.

        * wtf/PlatformEnableCocoa.h:
        Turn on `ENABLE_MEDIA_CONTROLS_CONTEXT_MENUS` for macOS.

2021-03-16  Per Arne  <pvollan@apple.com>

        Add signpost for injected bundle creation
        https://bugs.webkit.org/show_bug.cgi?id=223068

        Reviewed by Alex Christensen.

        Add trace point codes for start and end of injected bundle creation.

        * wtf/SystemTracing.h:

2021-03-16  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK][WPE] Stop using g_memdup
        https://bugs.webkit.org/show_bug.cgi?id=223189

        Reviewed by Philippe Normand.

        Add fastMemDup() to replace g_memdup() that is now deprecated in GLib because of the possibility of overflow
        when converting from size_t to unsigned int. There's a replacement in GLib already, but we would need to depend
        on very new GLib version, so better use fastMemDup() when possible. In cases where we still need to use GLib
        allocator, we can simply call g_malloc() + memcpy().

        * wtf/FastMalloc.cpp:
        (WTF::fastMemDup):
        * wtf/FastMalloc.h:

2021-03-16  Khem Raj  <raj.khem@gmail.com>

        [CMake] Build fails on RISC-V with GCC 11
        https://bugs.webkit.org/show_bug.cgi?id=222959

        Reviewed by Carlos Alberto Lopez Perez.

        Link with libatomic if ATOMICS_REQUIRE_LIBATOMIC is set.

        * wtf/CMakeLists.txt:

2021-03-15  Alex Christensen  <achristensen@webkit.org>

        REGRESSION: (r255611) [ Mac ] 3 lldb tests failing related to HashMap
        https://bugs.webkit.org/show_bug.cgi?id=207204

        Reviewed by Simon Fraser.

        * wtf/HashTable.h:

2021-03-15  Chris Dumez  <cdumez@apple.com>

        RunLoop::isMain() should not need to do any heap allocations
        https://bugs.webkit.org/show_bug.cgi?id=223227

        Reviewed by Darin Adler.

        RunLoop::isMain() should not need to do any heap allocations. Before this change,
        calling RunLoop::isMain() on a non-main thread would call RunLoop::current() which
        would allocate the RunLoop for the current thread. This is inefficient and an issue
        for WebAudio since we're not allowed to do heap allocation on the audio rendering
        thread.

        * wtf/RunLoop.cpp:
        (WTF::RunLoop::runLoopHolder):
        (WTF::RunLoop::current):
        (WTF::RunLoop::isMain):
        * wtf/RunLoop.h:

2021-03-15  Alex Christensen  <achristensen@webkit.org>

        REGRESSION(r271642) Another app was relying on DOMWindow reuse
        https://bugs.webkit.org/show_bug.cgi?id=223217
        <rdar://75186172>

        Reviewed by Geoff Garen.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

2021-03-15  Rob Buis  <rbuis@igalia.com>

        Turn CSS aspect-ratio on by default
        https://bugs.webkit.org/show_bug.cgi?id=223117

        Reviewed by Simon Fraser.

        Turn CSS aspect-ratio on by default.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2021-03-13  Tim Horton  <timothy_horton@apple.com>

        Adopt DDMacAction instead of DDAction on macOS
        https://bugs.webkit.org/show_bug.cgi?id=223145
        <rdar://problem/70127512>

        Reviewed by Megan Gardner.

        * wtf/PlatformHave.h:

2021-03-12  Lauro Moura  <lmoura@igalia.com>

        REGRESSION(r274327) [GLIB] 2D Canvas tests timing out after enabling GPUProces in testing
        https://bugs.webkit.org/show_bug.cgi?id=223130

        Reviewed by Philippe Normand.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2021-03-12  Alex Christensen  <achristensen@webkit.org>

        Reduce maximum HashTable entry size to 400 bytes
        https://bugs.webkit.org/show_bug.cgi?id=223106

        Reviewed by Youenn Fablet.

        * wtf/HashTable.h:
        (WTF::KeyTraits>::inlineLookup):

2021-03-11  Tim Horton  <timothy_horton@apple.com>

        REGRESSION (r267775): Web Share API Level 2 is incorrectly disabled
        https://bugs.webkit.org/show_bug.cgi?id=223110

        Reviewed by Simon Fraser.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        Through a series of minor mishaps related to r267623 and r267775,
        the current state of the default value of WebShareFileAPIEnabled
        in modern WebKit does not match what it was changed to in r267762
        (is it now instead off everywhere).

        Fix this regression by copying the condition from WebShareEnabled.

2021-03-11  Said Abou-Hallawa  <said@apple.com>

        [GPUP] Enable 2D Canvas in layout tests by default
        https://bugs.webkit.org/show_bug.cgi?id=222835

        Reviewed by Simon Fraser.

        Move UseGPUProcessForCanvasRenderingEnabled from WebPreferencesInternal 
        to WebPreferencesExperimental so that the WebKitTestRunner will turn it
        on by default.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        * Scripts/Preferences/WebPreferencesInternal.yaml:

2021-03-11  Saam Barati  <sbarati@apple.com>

        Adopt VM_FLAGS_PERMANENT for the config vm mapping
        https://bugs.webkit.org/show_bug.cgi?id=222086
        <rdar://74402690>

        Reviewed by Yusuke Suzuki and Mark Lam.

        * wtf/PlatformHave.h:
        * wtf/Threading.cpp:
        (WTF::initialize):
        * wtf/WTFConfig.cpp:
        (WTF::setPermissionsOfConfigPage):
        * wtf/WTFConfig.h:
        (WTF::setPermissionsOfConfigPage):

2021-03-11  Chris Dumez  <cdumez@apple.com>

        Introduce ensureOnMainThread()
        https://bugs.webkit.org/show_bug.cgi?id=223105

        Reviewed by Darin Adler.

        Introduce ensureOnMainThread(), similarly to the recently added ensureOnMainThreadRunLoop(). It runs
        the task synchronously when on the main thread, otherwise dispatches the task to the main thread.

        * wtf/MainThread.cpp:
        (WTF::ensureOnMainThread):
        * wtf/MainThread.h:
        * wtf/ThreadSafeRefCounted.h:
        (WTF::ThreadSafeRefCounted::deref const):
        * wtf/text/cf/StringImplCF.cpp:
        (WTF::StringWrapperCFAllocator::deallocate):
        * wtf/unix/MemoryPressureHandlerUnix.cpp:
        (WTF::MemoryPressureHandler::triggerMemoryPressureEvent):

2021-03-11  Chris Dumez  <cdumez@apple.com>

        Introduce WorkQueue::main() to get the main thread's work queue
        https://bugs.webkit.org/show_bug.cgi?id=223087

        Reviewed by Geoffrey Garen.

        Introduce WorkQueue::main() to get the main thread's work queue. This allows us to port some more code from
        dispatch_queue to WorkQueue. It also simplifies some code that has to deal that sometimes needs to run on
        the main thread and other times on a background queue. Having a single WorkQueue type to represent both the
        main thread and a background queue makes writing such code more convenient.

        * wtf/WorkQueue.cpp:
        (WTF::WorkQueue::main):
        * wtf/WorkQueue.h:
        * wtf/cocoa/WorkQueueCocoa.cpp:
        (WTF::WorkQueue::constructMainWorkQueue):
        (WTF::WorkQueue::WorkQueue):
        * wtf/generic/WorkQueueGeneric.cpp:
        (WorkQueue::constructMainWorkQueue):
        (WorkQueue::WorkQueue):

2021-03-11  Chris Dumez  <cdumez@apple.com>

        Use BinarySemaphore in callOnMainAndWait()
        https://bugs.webkit.org/show_bug.cgi?id=223092

        Reviewed by Geoffrey Garen.

        Use BinarySemaphore in callOnMainAndWait() instead of a Condition, this simplifies the code
        a bit. Also templatize the function to make sure we avoid any runtime checks for the
        the "mainStyle".

        * wtf/MainThread.cpp:
        (WTF::callOnMainAndWait):
        (WTF::callOnMainRunLoopAndWait):
        (WTF::callOnMainThreadAndWait):

2021-03-11  Mark Lam  <mark.lam@apple.com>

        Use tagged pointers in more places in the MetaAllocator code.
        https://bugs.webkit.org/show_bug.cgi?id=223055
        rdar://69971224

        Reviewed by Saam Barati.

        1. Made the MetaAllocatorPtr constructor that takes a raw pointer private, and
           only call it from a static factory method, MetaAllocatorPtr::makeFromRawPointer()
           to make it clear that we're using an untagged pointer as a source.
        2. Added a MetaAllocatorPtr constructor that retags a pointer.
           This allows minimizes the window of working with an untagged pointer.
        3. Assert that MetaAllocator::addFreshFreeSpace() is only called at system
           initialization time.
        4. Removed an unused MetaAllocator::FreeSpaceNode constructor.

        * wtf/MetaAllocator.cpp:
        (WTF::MetaAllocator::release):
        (WTF::MetaAllocatorHandle::MetaAllocatorHandle):
        (WTF::MetaAllocatorHandle::shrink):
        (WTF::MetaAllocator::allocate):
        (WTF::MetaAllocator::addFreshFreeSpace):
        * wtf/MetaAllocator.h:
        (WTF::MetaAllocator::FreeSpaceNode::FreeSpaceNode): Deleted.
        * wtf/MetaAllocatorHandle.h:
        * wtf/MetaAllocatorPtr.h:
        (WTF::MetaAllocatorPtr::makeFromRawPointer):
        (WTF::MetaAllocatorPtr::MetaAllocatorPtr):

2021-03-11  Chris Dumez  <cdumez@apple.com>

        Introduce WorkQueue::dispatchSync()
        https://bugs.webkit.org/show_bug.cgi?id=223049

        Reviewed by Alex Christensen.

        Introduce WorkQueue::dispatchSync(), which relies on GCD's dispatch_sync() internally on Cocoa
        ports. For other ports, it relies on a BinarySemaphore for synchronization.

        * wtf/WorkQueue.cpp:
        (WTF::WorkQueue::dispatchSync):
        * wtf/WorkQueue.h:
        * wtf/cocoa/WorkQueueCocoa.cpp:
        (WTF::WorkQueue::dispatchSync):

2021-03-11  Carlos Garcia Campos  <cgarcia@igalia.com>

        Unreviewed. [GTK][WPE] Bump libsoup3 version to 2.99.3

        * wtf/Platform.h:
        * wtf/URL.h:

2021-03-10  Chris Dumez  <cdumez@apple.com>

        Use RetainPtr<> / OSObjectPtr<> more in WebKit
        https://bugs.webkit.org/show_bug.cgi?id=223030

        Reviewed by Darin Adler.

        * wtf/MemoryPressureHandler.cpp:
        (WTF::MemoryPressureHandler::setDispatchQueue):
        * wtf/MemoryPressureHandler.h:
        * wtf/WorkQueue.h:
        * wtf/cocoa/MemoryPressureHandlerCocoa.mm:
        (WTF::MemoryPressureHandler::install):
        (WTF::MemoryPressureHandler::uninstall):
        (WTF::MemoryPressureHandler::holdOff):
        * wtf/cocoa/WorkQueueCocoa.cpp:
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::dispatchAfter):
        (WTF::WorkQueue::platformInitialize):
        (WTF::WorkQueue::platformInvalidate):
        * wtf/text/cf/StringImplCF.cpp:
        (WTF::StringWrapperCFAllocator::allocator):
        (WTF::StringImpl::createCFString):

2021-03-10  Dean Jackson  <dino@apple.com>

        Use std::forward for forwarding references instead of WTFMove
        https://bugs.webkit.org/show_bug.cgi?id=223040

        Reviewed by Darin Adler.

        A newer version of clang produced a helpful warning that told
        us we were using WTFMove in places where we should use std::forward.

        * wtf/Expected.h:
        (std::experimental::fundamentals_v3::expected::operator=):
        * wtf/Function.h:
        (WTF::Function<Out):
        * wtf/NeverDestroyed.h:
        (WTF::makeNeverDestroyed):

2021-03-09  Darin Adler  <darin@apple.com>

        [Cocoa] Make WebKit API Objective-C objects safe to release on non-main threads
        https://bugs.webkit.org/show_bug.cgi?id=223013

        Reviewed by Geoffrey Garen.

        * wtf/MainThread.cpp:
        (WTF::ensureOnMainRunLoop): Added. For use in cases where we want to be more
        efficient, and synchronous, when already on the main run loop, but we can do
        the work asynchronously when called and not on the main run loop.

        * wtf/MainThread.h: Added ensureOnMainRunLoop.

2021-03-10  Michael Catanzaro  <mcatanzaro@gnome.org>

        [GTK] Reenable -fvisibility=hidden
        https://bugs.webkit.org/show_bug.cgi?id=181916

        Reviewed by Don Olmstead.

        We need to export WTF::filenameForDisplay.

        * wtf/FileSystem.h:

2021-03-09  Chris Dumez  <cdumez@apple.com>

        Use RELEASE_ASSERT() for Deque bounds checks
        https://bugs.webkit.org/show_bug.cgi?id=223008

        Reviewed by Alex Christensen.

        Use RELEASE_ASSERT() for Deque bounds checks instead of ASSERT(), similarly to what we did for Vector.

        * wtf/Deque.h:
        (WTF::inlineCapacity>::removeFirst):
        (WTF::inlineCapacity>::removeLast):

2021-03-09  Sam Weinig  <weinig@apple.com>

        Preferences do not need to be passed to the WebProcess via WebPageCreationParameters since the store already is
        https://bugs.webkit.org/show_bug.cgi?id=222945

        Reviewed by Simon Fraser.

        * Scripts/Preferences/WebPreferencesDebug.yaml:
        NeedsInAppBrowserPrivacyQuirks is only ever accessed via the WebKit preferences store,
        so does not need to be exposed in WebKitLegacy or WebCore. Achieve this by removing the
        WebKitLegacy and WebCore defaults.

2021-03-09  Alex Christensen  <achristensen@webkit.org>

        Reduce unnecessary string copies in ParsedContentRange
        https://bugs.webkit.org/show_bug.cgi?id=221769

        Reviewed by Geoff Garen.

        * wtf/text/StringView.h:
        (WTF::StringView::toInt64Strict const):
        * wtf/text/WTFString.h:

2021-03-09  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r274171.
        https://bugs.webkit.org/show_bug.cgi?id=223004

        Broke canvas layout tests on Apple Silicon

        Reverted changeset:

        "[GPUP] Enable 2D Canvas in layout tests by default"
        https://bugs.webkit.org/show_bug.cgi?id=222835
        https://trac.webkit.org/changeset/274171

2021-03-09  Chris Dumez  <cdumez@apple.com>

        Stop using callOnMainThread() / isMainThread() in WebKit2
        https://bugs.webkit.org/show_bug.cgi?id=222986

        Reviewed by Alex Christensen.

        * wtf/MainThread.h:

2021-03-09  Said Abou-Hallawa  <said@apple.com>

        [GPUP] Enable 2D Canvas in layout tests by default
        https://bugs.webkit.org/show_bug.cgi?id=222835

        Reviewed by Simon Fraser.

        Move UseGPUProcessForCanvasRenderingEnabled from WebPreferencesInternal 
        to WebPreferencesExperimental so that the WebKitTestRunner will turn it
        on by default.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        * Scripts/Preferences/WebPreferencesInternal.yaml:

2021-03-09  Sam Weinig  <weinig@apple.com>

        Remove CSSParserContext::enforcesCSSMIMETypeInNoQuirksMode as it is unused
        https://bugs.webkit.org/show_bug.cgi?id=222949

        Reviewed by Darin Adler.

        At some point in the past we stoped doing anything with the enforcesCSSMIMETypeInNoQuirksMode
        bit on CSSParserContext.

        The only time it was ever disabled was when running ancient versions of iWeb, a product that
        itself hasn't existed for over a decade, so I think we are ok to remove it.

        * Scripts/Preferences/WebPreferences.yaml:

2021-03-09  Ben Nham  <nham@apple.com>

        Adopt new NSURLSessionConfiguration SPI for connection cache configuration
        https://bugs.webkit.org/show_bug.cgi?id=222934

        Reviewed by Geoffrey Garen.

        Add the HAVE_CFNETWORK_NSURLSESSION_CONNECTION_CACHE_LIMITS flag to control whether or not
        to use the connection cache limit SPI on NSURLSessionConfiguration.

        * wtf/PlatformHave.h:

2021-03-08  Sam Weinig  <weinig@apple.com>

        Remove quirks for the no longer supported iAd Producer
        https://bugs.webkit.org/show_bug.cgi?id=222894

        Reviewed by Chris Dumez.

        * Scripts/Preferences/WebPreferences.yaml:
        Remove NeedsIsLoadingInAPISenseQuirk preference which only existed to enable
        a quirk for iAd Producer.

2021-03-07  Sam Weinig  <weinig@apple.com>

        Move new color(), lab() and lch() color functions behind runtime settings.
        https://bugs.webkit.org/show_bug.cgi?id=222869

        Reviewed by Simon Fraser.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        Add experimental feature flag for the new CSS Color 4 color types. 

2021-03-06  Dean Jackson  <dino@apple.com>

        dlopen_preflight is failing (temporarily) but obsolete
        https://bugs.webkit.org/show_bug.cgi?id=222829

        Reviewed by Jer Noble.

        I hit a bug where dlopen_preflight was failing in a particular build.
        That is now fixed, but as I was discussing it with the dyld team
        they said we should stop using it. The rationale was that it only
        made sense during the PowerPC to Intel transition, and it is as
        expensive as dlopen now.

        * wtf/PlatformUse.h: No need for preflight linking code.
        * wtf/cocoa/SoftLinking.h:

2021-03-05  Don Olmstead  <don.olmstead@sony.com>

        [CMake] Bump cmake_minimum_required version to 3.12 or later
        https://bugs.webkit.org/show_bug.cgi?id=221727
        <rdar://problem/74454980>

        Reviewed by Konstantin Tokarev.

        Sync cmake_minimum_required version for AppleWin internal builds.

        * CMakeLists.txt:

2021-03-05  Chris Dumez  <cdumez@apple.com>

        Reduce use of CFRetain() / CFRelease() / CFAutoRelease() in WebKit
        https://bugs.webkit.org/show_bug.cgi?id=222760

        Reviewed by Darin Adler.

        Reduce use of CFRetain() / CFRelease() / CFAutoRelease() in WebKit by using RetainPtr<>.

        * wtf/cocoa/NSURLExtras.mm:
        (WTF::decodePercentEscapes):
        (WTF::URLByTruncatingOneCharacterBeforeComponent):
        (WTF::URLWithData):
        (WTF::URLByRemovingComponentAndSubsequentCharacter):

2021-03-04  Alex Christensen  <achristensen@webkit.org>

        Add internal preference to disable HTTPS upgrade
        https://bugs.webkit.org/show_bug.cgi?id=222778

        Reviewed by Simon Fraser.

        This is needed for an internal performance benchmark, which serves canned content from a local http server
        pretending to be from different domains that are in our internal HTTPS upgrade list because the real server
        supports HTTPS.  That internal benchmark should eventually change, but that's not going to happen this year.
        This is also likely going to be useful for QA purposes to be able to easily tell on an internal build
        whether HTTPS upgrade is breaking something.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

2021-03-04  Alex Christensen  <achristensen@webkit.org>

        Remove the HTTPSUpgradeEnabled experimental feature
        https://bugs.webkit.org/show_bug.cgi?id=222706

        Reviewed by Simon Fraser.

        It was a good experimental implementation, but the feature is now implemented in makeSecureIfNecessary
        and turned on and off by WKWebViewConfiguration.upgradeKnownHostsToHTTPS.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2021-03-04  Chris Dumez  <cdumez@apple.com>

        [macOS][WK2] Changing the system language does not update navigator.language
        https://bugs.webkit.org/show_bug.cgi?id=222619

        Reviewed by Per Arne Vollan.

        Update WTF::languageDidChange() to clear preferredLanguages() on Cocoa platforms
        so that we get updated values from the system the next time
        platformUserPreferredLanguages() is called.

        platformUserPreferredLanguages() used to implicitly register a AppleLanguagePreferencesChangedNotification
        listener. We've now made this registering opt-in by moving it to a separate
        listenForLanguageChangeNotifications() function. This function is getting called
        on Mac WK1 and WK2 when CFPREFS_DIRECT_MODE is disabled (legacy).
        When CFPREFS_DIRECT_MODE is enabled in WK2, we don't want/need to listen for this
        notification because the AppleLanguages preference gets pushed by the UIProcess
        down to the WebProcesses. Even though we could listen for this notification,
        the WebProcess would not have the latest AppleLanguages preference when receiving
        the notification. This would cause us to fire the languagechange event at the
        Window too early and navigator.language would keep returning the old language.
        For WK2 with CFPREFS_DIRECT_MODE enabled, we now explicitly call
        WTF::languageDidChange() when the "AppleLanguages" preference gets sync'd from
        the UIProcess instead.

        * wtf/Language.cpp:
        (WTF::languageDidChange):
        (WTF::platformLanguageDidChange):
        * wtf/Language.h:
        * wtf/cf/LanguageCF.cpp:
        (WTF::languagePreferencesDidChange):
        (WTF::platformLanguageDidChange):
        (WTF::listenForLanguageChangeNotifications):
        (WTF::platformUserPreferredLanguages):

2021-03-04  Chris Dumez  <cdumez@apple.com>

        Set ownership of IOSurfaces from the GPUProcess instead of the WebProcess
        https://bugs.webkit.org/show_bug.cgi?id=222391
        <rdar://74748353>

        Reviewed by Simon Fraser.

        Add HAVE_IOSURFACE_SET_OWNERSHIP_IDENTITY feature flag to protect uses of the
        new IOSurfaceSetOwnershipIdentity() SPI.

        * wtf/PlatformHave.h:

2021-03-03  Alex Christensen  <achristensen@webkit.org>

        Limit HashTable entry size to 500 bytes
        https://bugs.webkit.org/show_bug.cgi?id=222658

        Reviewed by Yusuke Suzuki.

        * wtf/HashTable.h:
        (WTF::KeyTraits>::inlineLookup):

2021-03-03  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] ENABLE(JIT_CAGE) requires HAVE(JIT_CAGE)
        https://bugs.webkit.org/show_bug.cgi?id=222695

        Reviewed by Saam Barati.

        HAVE(JIT_CAGE) is internally defined. We use HAVE(JIT_CAGE) when defining ENABLE(JIT_CAGE).

        * wtf/PlatformEnable.h:

2021-03-03  Chris Dumez  <cdumez@apple.com>

        Unreviewed, reverting r273851.

        Caused some tests failures on macOS Big Sur

        Reverted changeset:

        "[macOS][WK2] Changing the system language does not update
        navigator.language"
        https://bugs.webkit.org/show_bug.cgi?id=222619
        https://commits.webkit.org/r273851

2021-03-03  Ryan Haddad  <ryanhaddad@apple.com>

        Unreviewed, reverting r273832.

        26 inspector tests failing a new assert added with this change

        Reverted changeset:

        "Limit HashTable entry size to 500 bytes"
        https://bugs.webkit.org/show_bug.cgi?id=222658
        https://commits.webkit.org/r273832

2021-03-03  Chris Dumez  <cdumez@apple.com>

        [macOS][WK2] Changing the system language does not update navigator.language
        https://bugs.webkit.org/show_bug.cgi?id=222619

        Reviewed by Per Arne Vollan.

        Update WTF::languageDidChange() to clear preferredLanguages() on Cocoa platforms
        so that we get updated values from the system the next time
        platformUserPreferredLanguages() is called.

        platformUserPreferredLanguages() used to implicitly register a AppleLanguagePreferencesChangedNotification
        listener. We've now made this registering opt-in by moving it to a separate
        listenForLanguageChangeNotifications() function. This function is getting called
        on Mac WK1 and WK2 when CFPREFS_DIRECT_MODE is disabled (legacy).
        When CFPREFS_DIRECT_MODE is enabled in WK2, we don't want/need to listen for this
        notification because the AppleLanguages preference gets pushed by the UIProcess
        down to the WebProcesses. Even though we could listen for this notification,
        the WebProcess would not have the latest AppleLanguages preference when receiving
        the notification. This would cause us to fire the languagechange event at the
        Window too early and navigator.language would keep returning the old language.
        For WK2 with CFPREFS_DIRECT_MODE enabled, we now explicitly call
        WTF::languageDidChange() when the "AppleLanguages" preference gets sync'd from
        the UIProcess instead.

        * wtf/Language.cpp:
        (WTF::languageDidChange):
        (WTF::platformLanguageDidChange):
        * wtf/Language.h:
        * wtf/cf/LanguageCF.cpp:
        (WTF::languagePreferencesDidChange):
        (WTF::platformLanguageDidChange):
        (WTF::listenForLanguageChangeNotifications):
        (WTF::platformUserPreferredLanguages):

2021-03-03  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] Add System.framework PrivateHeaders to header path of WTF
        https://bugs.webkit.org/show_bug.cgi?id=222688

        Reviewed by Tim Horton.

        The other non-third-party components excluding WTF have System.framework PrivateHeaders in their header search path.
        This causes the problem that we cannot use some system headers (e.g. `<machine/cpu_capabilities.h>`) in WTF while it is
        usable in JavaScriptCore and the other components. This patch adds it as the other components did.

        * Configurations/Base.xcconfig:

2021-03-03  Michael Catanzaro  <mcatanzaro@gnome.org>

        std::is_literal_type causes -Wdeprecated-declarations warning with GCC 11
        https://bugs.webkit.org/show_bug.cgi?id=220662
        <rdar://problem/73509470>

        Reviewed by Darin Adler.

        Ignore the warning. It would be better to not use the deprecated std::is_literal_type, but
        this works for now.

        * wtf/Variant.h:

2021-03-03  Tim Horton  <timothy_horton@apple.com>

        Modernize WebKit2 PDFKit softlinking
        https://bugs.webkit.org/show_bug.cgi?id=222643

        Reviewed by Alex Christensen.

        * wtf/PlatformHave.h:

2021-03-03  Alex Christensen  <achristensen@webkit.org>

        Limit HashTable entry size to 500 bytes
        https://bugs.webkit.org/show_bug.cgi?id=222658

        Reviewed by Yusuke Suzuki.

        * wtf/HashTable.h:
        (WTF::KeyTraits>::inlineLookup):

2021-03-03  Youenn Fablet  <youenn@apple.com>

        WebKitLegacy needs to keep JSDOMWindow even though it is used while its origin is not set
        https://bugs.webkit.org/show_bug.cgi?id=222589
        <rdar://problem/74258258>

        Reviewed by Geoffrey Garen.

        * Scripts/Preferences/WebPreferencesInternal.yaml:
        Introduce a flag, on for WebKit and off for WebKitLegacy.

2021-03-02  Simon Fraser  <simon.fraser@apple.com>

        Rename ForcePageRenderingUpdatesAt60FPSEnabled preference to PreferPageRenderingUpdatesNear60FPSEnabled
        https://bugs.webkit.org/show_bug.cgi?id=222580.

        Reviewed by Tim Horton.

        PreferPageRenderingUpdatesNear60FPSEnabled is a better description of what the preference does.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

2021-03-02  Youenn Fablet  <youenn@apple.com>

        Enable MEDIA_SOURCE in IOS Simulator
        https://bugs.webkit.org/show_bug.cgi?id=222041

        Reviewed by Eric Carlson.

        * Scripts/Preferences/WebPreferences.yaml:
        Move this settings out of ENABLE(MEDIA_SOURCE) to allow existing binding code to compile.
        * wtf/PlatformEnableCocoa.h:

2021-03-01  Truitt Savell  <tsavell@apple.com>

        Unreviewed, reverting r273655.

        Broke internal Mac

        Reverted changeset:

        "Set ownership of IOSurfaces from the GPUProcess instead of
        the WebProcess"
        https://bugs.webkit.org/show_bug.cgi?id=222391
        https://commits.webkit.org/r273655

2021-03-01  Sam Weinig  <weinig@apple.com>

        Add alternate, non-named-getter based, implementation of CSSStyleDeclaration back into WebCore
        https://bugs.webkit.org/show_bug.cgi?id=222517

        Reviewed by Darin Adler.

        * wtf/PlatformEnable.h:
        Add new off by default ENABLE flag ENABLE(ATTRIBUTE_BASED_PROPERTIES_FOR_CSS_STYLE_DECLARATION) which indicates
        that we should use the new attribute based implementation of property getter/setters of CSSStyleDeclaration.
        Once we remove the compile time and binary size regressions, we can enable this and remove the macro.

2021-03-01  Sam Weinig  <weinig@apple.com>

        Add experimental support for CSS Color 5 color-contrast()
        https://bugs.webkit.org/show_bug.cgi?id=222530

        Reviewed by Simon Fraser.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        Add new experimental preference for CSS Color 5 color-contrast()
        which is off by default.

2021-02-25  Simon Fraser  <simon.fraser@apple.com>

        Remove ENABLE_WEBPROCESS_WINDOWSERVER_BLOCKING which is always true for macOS
        https://bugs.webkit.org/show_bug.cgi?id=222459

        Reviewed by Sam Weinig.

        ENABLE_WEBPROCESS_WINDOWSERVER_BLOCKING is always defined for PLATFORM(MAC), so remove it,
        replacing with PLATFORM(MAC) in a few places. In order to reduce the number PLATFORM(MAC), define
        HAVE(CVDISPLAYLINK) and use it in WK2 code that relates to DisplayLinks.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:
        * wtf/PlatformHave.h:

2021-03-01  Chris Dumez  <cdumez@apple.com>

        Set ownership of IOSurfaces from the GPUProcess instead of the WebProcess
        https://bugs.webkit.org/show_bug.cgi?id=222391
        <rdar://74748353>

        Reviewed by Simon Fraser.

        Add HAVE_IOSURFACE_SET_OWNERSHIP_IDENTITY feature flag to protect uses of the
        new IOSurfaceSetOwnershipIdentity() SPI.

        * wtf/PlatformHave.h:

2021-02-26  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK][WPE] Bump libsoup3 version to 2.99.1
        https://bugs.webkit.org/show_bug.cgi?id=222413

        Reviewed by Adrian Perez de Castro.

        * wtf/Platform.h: Set minimum required version to 2.99

2021-02-25  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r273503.
        https://bugs.webkit.org/show_bug.cgi?id=222442

        Caused a blob loading failure

        Reverted changeset:

        "Serialize NSURLRequest (rather than CFURLRequest) in IPC"
        https://bugs.webkit.org/show_bug.cgi?id=222145
        https://trac.webkit.org/changeset/273503

2021-02-25  Alex Christensen  <achristensen@webkit.org>

        Add stubs to enable SafariForWebKitDevelopment to launch
        https://bugs.webkit.org/show_bug.cgi?id=222388

        Reviewed by Myles Maxfield

        * wtf/PlatformHave.h:
        * wtf/text/WTFString.h:
        * wtf/text/cocoa/StringCocoa.mm:
        (WTF::String::String):

2021-02-25  Brent Fulgham  <bfulgham@apple.com>

        Serialize NSURLRequest (rather than CFURLRequest) in IPC
        https://bugs.webkit.org/show_bug.cgi?id=222145
        <rdar://problem/74500963>

        Reviewed by Darin Adler.

        URLWithData does an early return when the leading character in the URL is '/',
        signifying a file path. However, URLs of the form "//cdn.domain.com" are often
        encountered, and RFC 3986 does not prohibit them. We should only do an early
        return if the character after the initial '/' is not also '/'.

        * wtf/cocoa/NSURLExtras.mm:
        (WTF::URLWithData):

2021-02-24  Sam Weinig  <weinig@apple.com>

        Add platform enable for separated model investigation
        https://bugs.webkit.org/show_bug.cgi?id=222383

        Reviewed by Dean Jackson.

        * wtf/PlatformEnableCocoa.h:
        Add define.

2021-02-23  Don Olmstead  <don.olmstead@sony.com>

        [CMake] Fix JSCOnly build on Windows
        https://bugs.webkit.org/show_bug.cgi?id=222316

        Reviewed by Michael Catanzaro.

        Update sources for the JSCOnly Windows build.

        * wtf/PlatformJSCOnly.cmake:

2021-02-22  Chris Dumez  <cdumez@apple.com>

        Prepare for memory ownership transfer in the GPUProcess
        https://bugs.webkit.org/show_bug.cgi?id=222122

        Reviewed by Simon Fraser.

        * wtf/PlatformHave.h:
        Add feature flag for TASK_IDENTITY_TOKEN as this API was only
        introduced very recently.

        * wtf/MachSendRight.h:
        * wtf/cocoa/MachSendRight.cpp:
        (WTF::MachSendRight::MachSendRight):
        (WTF::MachSendRight::operator=):
        Add a copy constructor to MachSendRight for convenience.

2021-02-22  Sam Weinig  <weinig@apple.com>

        Add experimental support for CSS Color 5 color-mix()
        https://bugs.webkit.org/show_bug.cgi?id=222258

        Reviewed by Antti Koivisto.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        Add new experimental preference for CSS Color 5 color-mix()
        which is off by default.

2021-02-22  Carlos Garcia Campos  <cgarcia@igalia.com>

        [SOUP] Add support for libsoup3
        https://bugs.webkit.org/show_bug.cgi?id=222093

        Reviewed by Adrian Perez de Castro.

        * wtf/Platform.h:
        * wtf/URL.h:
        * wtf/glib/GRefPtr.cpp:
        (WTF::refGPtr):
        (WTF::derefGPtr):
        * wtf/glib/GRefPtr.h:
        * wtf/glib/URLGLib.cpp:
        (WTF::URL::URL):
        (WTF::URL::createGUri const):

2021-02-22  Fujii Hironori  <Hironori.Fujii@sony.com>

        RunLoop::threadWillExit is doing m_nextIteration.clear() without locking m_nextIterationLock
        https://bugs.webkit.org/show_bug.cgi?id=221115

        Reviewed by Yusuke Suzuki.

        GKT and WPE ports were observing a random assertion failure in
        Deque::append in RunLoop::dispatch.

        * wtf/RunLoop.cpp:
        (WTF::RunLoop::threadWillExit): Lock m_nextIterationLock before doing m_nextIteration.clear().

2021-02-21  Simon Fraser  <simon.fraser@apple.com>

        Re-enable Paint Timing
        https://bugs.webkit.org/show_bug.cgi?id=211736

        Reviewed by Noam Rosenthal.

        Now that bug 222245 is fixed in r273220, re-enable Paint Timing
        (aka First Contentful Paint.)

        * Scripts/Preferences/WebPreferencesEfxperimental.yaml:

2021-02-20  Jiewen Tan  <jiewen_tan@apple.com>

        PCM: Turn the fraud prevention on by default
        https://bugs.webkit.org/show_bug.cgi?id=222224
        <rdar://problem/73588234>

        Reviewed by John Wilander.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2021-02-20  Said Abou-Hallawa  <said@apple.com>

        Make PaintTimingEnabled default to false
        https://bugs.webkit.org/show_bug.cgi?id=222186

        Reviewed by Simon Fraser.

        PaintTiming causes about 4% regression in the MotionMark sub-tests:
        Multiply and Focus. Do disable it for now.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2021-02-19  Wenson Hsieh  <wenson_hsieh@apple.com>

        [iOS] Specify a _UIDataOwner when reading or writing from the system pasteboard
        https://bugs.webkit.org/show_bug.cgi?id=222072
        <rdar://problem/74208576>

        Reviewed by Devin Rousso.

        * wtf/PlatformHave.h:

        Turn several compile-time guards previously in `PlatformPasteboardIOS.mm` into `HAVE()`-s.

2021-02-16  Jiewen Tan  <jiewen_tan@apple.com>

        PCM: Generate secret token and corresponding unlinkable token
        https://bugs.webkit.org/show_bug.cgi?id=222019
        <rdar://problem/73581412>

        Reviewed by John Wilander.

        * wtf/PlatformHave.h:
        Adds a compile time flag for RSABSSA.

2021-02-19  Jer Noble  <jer.noble@apple.com>

        [Cocoa] Enable Opus decode support by default
        https://bugs.webkit.org/show_bug.cgi?id=222131

        Reviewed by Eric Carlson.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2021-02-19  Aditya Keerthi  <akeerthi@apple.com>

        [iOS][FCR] Enable the new appearance by default
        https://bugs.webkit.org/show_bug.cgi?id=222015
        <rdar://problem/74415537>

        Reviewed by Wenson Hsieh.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

        Enable the iOS Form Control Refresh.

2021-02-18  Sam Weinig  <weinig@apple.com>

        Add experimental support for CSS Color 5 Relative Color Syntax
        https://bugs.webkit.org/show_bug.cgi?id=221880

        Reviewed by Darin Adler.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        Add new experimental preference for CSS Color 5 Relative Color Syntax
        which is off by default.

2021-02-18  Youenn Fablet  <youenn@apple.com>

        Set ENABLE_VP9 to 1 on IOS
        https://bugs.webkit.org/show_bug.cgi?id=222042
        <rdar://problem/74433523>

        Reviewed by Eric Carlson.

        * wtf/PlatformEnableCocoa.h:

2021-02-18  Devin Rousso  <drousso@apple.com>

        Experiment with using the theme-color as the scroll area background if provided
        https://bugs.webkit.org/show_bug.cgi?id=222078
        <rdar://problem/74158818>

        Reviewed by Tim Horton.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

2021-02-18  Chris Dumez  <cdumez@apple.com>

        Unreviewed tiny cleanup after r273056.

        * wtf/Forward.h:

2021-02-17  Sam Weinig  <weinig@apple.com>

        Enable separated graphics layer experiments on internal variant
        https://bugs.webkit.org/show_bug.cgi?id=222088

        Reviewed by Dean Jackson.

        * wtf/PlatformEnableCocoa.h:

2021-02-18  Antoine Quint  <graouts@webkit.org>

        Page updates and rAF callbacks should run at a frequency close to 60Hz on high refresh-rate displays
        https://bugs.webkit.org/show_bug.cgi?id=221673
        <rdar://problem/72398605>

        Reviewed by Simon Fraser.

        Add a new internal preference to force the refresh rate for page rendering updates to 60fps
        rather than use the display's refresh rate. This setting defaults to false.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

2021-02-17  Chris Dumez  <cdumez@apple.com>

        Unreviewed, address post-landing review comments from Darin Adler for r273046.

        * wtf/Forward.h:

2021-02-17  Chris Dumez  <cdumez@apple.com>

        DumpRenderTree's createWebViewAndOffscreenWindow() should return a RetainPtr
        https://bugs.webkit.org/show_bug.cgi?id=222068

        Reviewed by Sam Weinig.

        * wtf/Forward.h:

2021-02-17  Dean Jackson  <dino@apple.com>

        Use element fullscreen for video on some configurations
        https://bugs.webkit.org/show_bug.cgi?id=222048
        <rdar://problem/74439214>

        Reviewed by Sam Weinig.

        * wtf/PlatformEnableCocoa.h:

2021-02-17  Per Arne  <pvollan@apple.com>

        [macOS] Deny mach-lookup to the fonts service
        https://bugs.webkit.org/show_bug.cgi?id=221610
        <rdar://problem/69168609>

        Reviewed by Brent Fulgham.

        Add HAVE define for platform static font registry.

        * wtf/PlatformHave.h:

2021-02-17  Wenson Hsieh  <wenson_hsieh@apple.com>

        [macOS] Introduce a new context menu item to preview images
        https://bugs.webkit.org/show_bug.cgi?id=221917
        <rdar://problem/74363578>

        Reviewed by Darin Adler and Tim Horton.

        Add a new soft-linking macro to optionally link against an umbrella framework.

        * wtf/cocoa/SoftLinking.h:

2021-02-16  Sam Weinig  <weinig@apple.com>

        Add CSS property to enable separated bit on GraphicsLayer
        https://bugs.webkit.org/show_bug.cgi?id=222010

        Reviewed by Dean Jackson.

        Add internal access to the separated bit on graphics layer via a 
        new "optimized-3d" transform-style. This is all off by default and
        is expected to change, but is useful and non-invasive for experimentation.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        * wtf/PlatformEnable.h:

2021-02-16  Chris Dumez  <cdumez@apple.com>

        Clients of ARC-dependent WTF functions may get incorrect/crashy behavior
        https://bugs.webkit.org/show_bug.cgi?id=222004
        <rdar://73620184>

        Reviewed by Geoffrey Garen.

        ARC is enabled in WTF but not in our other frameworks. This can lead to bad/crashy
        behavior. To address the issue, renames functions like adoptNS() to adoptNSArc()
        when ARC is enabled, via a #define.

        This patch was written by Geoff Garen.

        * wtf/BlockPtr.h:
        * wtf/OSObjectPtr.h:
        * wtf/RetainPtr.h:
        * wtf/WeakObjCPtr.h:

2021-02-16  Manuel Rego Casasnovas  <rego@igalia.com>

        [selectors] :focus-visible parsing and experimental flag
        https://bugs.webkit.org/show_bug.cgi?id=221895

        Reviewed by Darin Adler.

        * Scripts/Preferences/WebPreferencesExperimental.yaml: Add experimental feature flag.

2021-02-16  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Enable JITCage on macOS
        https://bugs.webkit.org/show_bug.cgi?id=221805
        <rdar://problem/74153806>

        Reviewed by Mark Lam.

        Enable JIT_CAGE when macOS is 120000 or higher with ARM64E.

        * wtf/PlatformEnable.h:

2021-02-15  Per Arne  <pvollan@apple.com>

        [macOS] Close XPC connections before entering sandbox
        https://bugs.webkit.org/show_bug.cgi?id=221905
        <rdar://problem/70359582>

        Reviewed by Brent Fulgham.

        Add softlinking macro for libraries in /usr/lib/system/.

        * wtf/cocoa/SoftLinking.h:

2021-02-15  Michael Saboff  <msaboff@apple.com>

        [ARM64] Change break instruction comment to indicate possible security failure
        https://bugs.webkit.org/show_bug.cgi?id=221936

        Reviewed by Mark Lam.

        Change the ASSERT break comment immediate to the same value the C++ compiler uses.

        * wtf/Assertions.cpp:
        * wtf/Assertions.h:

2021-02-15  Said Abou-Hallawa  <said@apple.com>

        [GPU Process] Ensure that no image decoders run in the GPU Process
        https://bugs.webkit.org/show_bug.cgi?id=221885
        <rdar://problem/74341122>

        Reviewed by Simon Fraser.

        CGImageSourceSetAllowableTypes() is available starting from macOS Big Sur
        and iOS 14.0.

        * wtf/PlatformHave.h:

2021-02-15  Michael Saboff  <msaboff@apple.com>

        REGRESSION r272823):  Crash in ARM64e Wasm tests
        https://bugs.webkit.org/show_bug.cgi?id=221922

        Reviewed by Mark Lam.

        Updated to properly compute the size of thread_state_t as well as the offset of 
        the PC found in thread_state_t.

        * wtf/threads/Signals.cpp:
        (WTF::hashThreadState):

2021-02-15  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r272831.
        https://bugs.webkit.org/show_bug.cgi?id=221907

        breaking internal build

        Reverted changeset:

        "[JSC] Enable JITCage on macOS"
        https://bugs.webkit.org/show_bug.cgi?id=221805
        https://trac.webkit.org/changeset/272831

2021-02-15  Youenn Fablet  <youenn@apple.com>

        Move WebRTCPlatformCodecsInGPUProcessEnabled to Page Settings
        https://bugs.webkit.org/show_bug.cgi?id=221893

        Reviewed by Eric Carlson.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2021-02-15  Lauro Moura  <lmoura@igalia.com>

        REGRESSION(r272842) [GStreamer] Layout tests exiting early due to crashes after GPUProcess for media enabled by default for WTR
        https://bugs.webkit.org/show_bug.cgi?id=221883

        Reviewed by Philippe Normand.

        * Scripts/Preferences/WebPreferencesExperimental.yaml: Disable
        UseGPUProcessForMediaEnabled when using GStreamer for now.

2021-02-14  Peng Liu  <peng.liu6@apple.com>

        [GPUP] Move UseGPUProcessForMediaEnabled from WebPreferencesInternal to WebPreferencesExperimental
        https://bugs.webkit.org/show_bug.cgi?id=221310

        Reviewed by Eric Carlson.

        Move UseGPUProcessForMediaEnabled from WebPreferencesInternal to WebPreferencesExperimental,
        so that the WebKitTestRunner will turn it on by default.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        * Scripts/Preferences/WebPreferencesInternal.yaml:

2021-02-12  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Enable JITCage on macOS
        https://bugs.webkit.org/show_bug.cgi?id=221805
        <rdar://problem/74153806>

        Reviewed by Mark Lam.

        Enable JIT_CAGE when macOS is 120000 or higher with ARM64E.

        * wtf/PlatformEnable.h:

2021-02-12  Michael Saboff  <msaboff@apple.com>

        [ARM64e] Harden Mach exception handling
        https://bugs.webkit.org/show_bug.cgi?id=221841

        Reviewed by Geoffrey Garen.

        For Darwin ARM64e platforms, we check to make sure that all thread state besides the PC hasn't
        been modified by an exception handler.

        * wtf/threads/Signals.cpp:
        (WTF::hashThreadState):

2021-02-11  Jer Noble  <jer.noble@apple.com>

        [Mac] Add Experimental Opus Codec support
        https://bugs.webkit.org/show_bug.cgi?id=221745

        Reviewed by Eric Carlson.

        Add a new experimental feature setting, disabled by default, controlling whether to
        enable parsing of Opus tracks from WebM files.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        * wtf/PlatformEnableCocoa.h:

2021-02-11  Alex Christensen  <achristensen@webkit.org>

        Reduce string copies when converting from NSString/CFStringRef to WTF::String
        https://bugs.webkit.org/show_bug.cgi?id=221766

        Reviewed by Geoff Garen.

        This reduces the string copies from two to one which should speed up many things.
        The cost is that for non-Latin1-encodable strings of length less than 1024, we now do an allocation
        and a reallocation, whereas before we were doing just one allocation.  I think even in this case, though,
        the cost of a reallocation should be comparable to the cost of doing a double string copy,
        and the benefit of reducing a string copy everywhere is compelling.

        I also reduced duplicate code by combining the CF and NS implementations.

        * wtf/text/WTFString.h:
        * wtf/text/cf/StringCF.cpp:
        (WTF::String::String):
        * wtf/text/cocoa/StringCocoa.mm:
        (WTF::String::String): Deleted.

2021-02-11  Sam Weinig  <weinig@apple.com>

        Returning sRGB from CG color space functions on failure is too error prone
        https://bugs.webkit.org/show_bug.cgi?id=221676

        Reviewed by Darin Adler.

        * wtf/PlatformHave.h:
        Add specific macros for color spaces supported by Core Graphics.

2021-02-10  Ryosuke Niwa  <rniwa@webkit.org>

        Reduce the overhead of DocumentFragment in innerHTML & outerHTML
        https://bugs.webkit.org/show_bug.cgi?id=221535
        <rdar://problem/73861015>

        Reviewed by Geoffrey Garen.

        Added a helper function for writing assertions.

        * wtf/WeakPtr.h:
        (WTF::WeakPtrFactory::isInitialized const): Added.

2021-02-10  Wenson Hsieh  <wenson_hsieh@apple.com>

        Use HAVE(PEPPER_UI_CORE) instead of PLATFORM(WATCHOS) to guard code that uses PepperUICore
        https://bugs.webkit.org/show_bug.cgi?id=221679

        Reviewed by Tim Horton.

        Add the `HAVE(PEPPER_UI_CORE)` compile-time flag.

        * wtf/PlatformHave.h:

2021-02-10  Wenson Hsieh  <wenson_hsieh@apple.com>

        [watchOS] Adopt PUICQuickboardController for text input
        https://bugs.webkit.org/show_bug.cgi?id=221649

        Reviewed by Tim Horton.

        Add a new internal setting. See other ChangeLogs for more detail.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

2021-02-09  Devin Rousso  <drousso@apple.com>

        [iOS] Add support for the language/subtitle tracks button using `UIMenu`
        https://bugs.webkit.org/show_bug.cgi?id=221594
        <rdar://problem/74129129>

        Reviewed by Eric Carlson and Wenson Hsieh.

        * Scripts/Preferences/WebPreferences.yaml:
        Create a `MediaControlsContextMenusEnabled` setting for guarding an IDL hook to WK2 only.

2021-02-09  Yusuke Suzuki  <ysuzuki@apple.com>

        REGRESSION(r269017): Speedometer2 1% regression
        https://bugs.webkit.org/show_bug.cgi?id=221640

        Reviewed by Mark Lam.

        Reverting r269017, r269478, and r272095 because of Speedometer2 ~1% regression.

        * wtf/HashTable.h:
        (WTF::KeyTraits>::inlineLookup):
        (WTF::KeyTraits>::lookupForWriting):
        (WTF::KeyTraits>::fullLookupForWriting):
        (WTF::KeyTraits>::addUniqueForInitialization):
        (WTF::KeyTraits>::add):
        * wtf/HashTraits.h:
        * wtf/MetaAllocator.cpp:
        (WTF::MetaAllocator::addFreeSpace):
        * wtf/MetaAllocator.h:

2021-02-09  Eric Carlson  <eric.carlson@apple.com>

        [macOS] Add internal preference to control how AVOutputContext is allocated
        https://bugs.webkit.org/show_bug.cgi?id=221583
        <rdar://73830632>

        Reviewed by Jer Noble.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

2021-02-06  Alex Christensen  <achristensen@webkit.org>

        Non-special URLs should have an opaque origin
        https://bugs.webkit.org/show_bug.cgi?id=162254

        Reviewed by Geoff Garen.

        * wtf/URL.h:

2021-02-04  David Kilzer  <ddkilzer@apple.com>

        WTF::dynamic_cf_cast<> should not assert in Debug builds
        <https://webkit.org/b/221428>
        <rdar://problem/73451079>

        Reviewed by Geoff Garen.

        * wtf/cf/TypeCastsCF.h:
        (WTF::dynamic_cf_cast):
        - Remove ASSERT_WITH_SECURITY_IMPLICATION().
        (WTF::checked_cf_cast):
        - Add comments about how to use these template functions
          correctly.

2021-02-03  Alex Christensen  <achristensen@webkit.org>

        Fix Catalyst build after r272228
        https://bugs.webkit.org/show_bug.cgi?id=220683
        <rdar://problem/73940814>

        * wtf/PlatformHave.h:
        Turn off our use of UIEventAttribution on Catalyst until we update our internal bots.

2021-02-03  Jiewen Tan  <jiewen_tan@apple.com>

        PCM: Add fraud prevention experimental feature flag
        https://bugs.webkit.org/show_bug.cgi?id=221292
        <rdar://problem/73581064>

        Reviewed by John Wilander.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2021-02-03  Kimmo Kinnunen  <kkinnunen@apple.com>

        MachSemaphore does not work well with IPC messages
        https://bugs.webkit.org/show_bug.cgi?id=220919
        <rdar://problem/73826848>

        Reviewed by Sam Weinig.

        Move WTF::MachSemaphore to WebKit IPC::Semaphore. Currently the
        MachSemaphore is useful only in cross-process IPC, implemented by the
        IPC::.

        * WTF.xcodeproj/project.pbxproj:

2021-02-02  Said Abou-Hallawa  <said@apple.com>

        [macOS] Force loading the HEIF reader symbols before transcoding any HEIF image
        https://bugs.webkit.org/show_bug.cgi?id=221191
        <rdar://problem/70942158>

        Reviewed by Tim Horton.

        Add a HAVE macro for the fix of <rdar://problem/59589723>.

        * wtf/PlatformHave.h:

2021-02-02  Alex Christensen  <achristensen@webkit.org>

        Adopt UIEventAttribution instead of _UIEventAttribution
        https://bugs.webkit.org/show_bug.cgi?id=220683

        Reviewed by John Wilander.

        * wtf/PlatformHave.h:

2021-02-02  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK][WPE] Migrate WebKitTestServer to libsoup 2.48 API
        https://bugs.webkit.org/show_bug.cgi?id=219160
        <rdar://problem/71620310>

        Reviewed by Michael Catanzaro.

        * wtf/Platform.h: Bump libsoup minimum required version to 2.54.

2021-02-01  Mark Lam  <mark.lam@apple.com>

        ConcurrentPtrHashSet::contains() should be const.
        https://bugs.webkit.org/show_bug.cgi?id=221241

        Reviewed by Yusuke Suzuki.

        * wtf/ConcurrentPtrHashSet.h:

2021-02-01  Jer Noble  <jer.noble@apple.com>

        [Cocoa] Disable interstitial events on AVPlayerItem.
        https://bugs.webkit.org/show_bug.cgi?id=221215

        Reviewed by Eric Carlson.

        * wtf/PlatformHave.h:

2021-02-01  Olivier Blin  <olivier.blin@softathome.com>

        clang Linux build cannot link because of __builtin_mul_overflow
        https://bugs.webkit.org/show_bug.cgi?id=190208

        Since r183319, __builtin_mul_overflow is used with gcc or clang in WTF/wtf/CheckedArithmetic.h

        This leads to a link failure when WebKit is built on Linux with clang and the libgcc runtime,
        because of an undefined reference to the __mulodi4 symbol.

        This is because clang generates code using the __mulodi4 symbol for __builtin_mul_overflow.
        But this symbol is available only in compiler-rt, and not in the libgcc runtime used by most
        Linux distributions of clang.

        See also this upstream clang bug: https://bugs.llvm.org/show_bug.cgi?id=28629

        Reviewed by Mark Lam.

        * wtf/CheckedArithmetic.h: Do not use __builtin_mul_overflow with clang on Linux for ARM

2021-01-31  Yusuke Suzuki  <ysuzuki@apple.com>

        Date.parse returns non-integral time value
        https://bugs.webkit.org/show_bug.cgi?id=220687

        Reviewed by Ross Kirsling.

        Use milliseconds instead of seconds as a base unit to avoid floating point rounding for milliseconds.

        * wtf/DateMath.cpp:
        (WTF::ymdhmsToMilliseconds):
        (WTF::parseES5TimePortion):
        (WTF::parseES5DateFromNullTerminatedCharacters):
        (WTF::parseDateFromNullTerminatedCharacters):
        (WTF::ymdhmsToSeconds): Deleted.

2021-01-30  Antti Koivisto  <antti@apple.com>

        Enable visibility aware resource load scheduling
        https://bugs.webkit.org/show_bug.cgi?id=221032

        Reviewed by Zalan Bujtas.

        Performance testing indicates this is a significant speedup in competetive PLT.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

2021-01-30  Wenson Hsieh  <wenson_hsieh@apple.com>

        [macOS] Remove support for image controls
        https://bugs.webkit.org/show_bug.cgi?id=221156

        Reviewed by Tim Horton.

        Remove this unused WebKit setting.

        * Scripts/Preferences/WebPreferences.yaml:

2021-01-29  Tadeu Zagallo  <tzagallo@apple.com>

        Make check for full HashTables opt-in
        https://bugs.webkit.org/show_bug.cgi?id=221166
        <rdar://problem/70902458>

        Reviewed by Saam Barati and Yusuke Suzuki.

        Having the check always on was a regression on Speedometer2, so we only keep it for
        the HashMaps in the MetaAllocator.

        * wtf/HashTable.h:
        (WTF::KeyTraits>::inlineLookup):
        (WTF::KeyTraits>::lookupForWriting):
        (WTF::KeyTraits>::fullLookupForWriting):
        (WTF::KeyTraits>::addUniqueForInitialization):
        (WTF::KeyTraits>::add):
        * wtf/HashTraits.h:
        * wtf/MetaAllocator.cpp:
        (WTF::MetaAllocator::addFreeSpace):
        * wtf/MetaAllocator.h:

2021-01-29  Myles C. Maxfield  <mmaxfield@apple.com>

        WebKit doesn't automatically right-align Adlam
        https://bugs.webkit.org/show_bug.cgi?id=220885

        Reviewed by Alex Christensen.

        If we want to iterate across code points, we have to actually
        iterate across code points instead of iterating across code units.

        Test: fast/text/adlam-dir-auto.html

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::defaultWritingDirection):

2021-01-29  Myles C. Maxfield  <mmaxfield@apple.com>

        font-stretch is not applied to system-ui
        https://bugs.webkit.org/show_bug.cgi?id=221103
        <rdar://problem/73719139>

        Reviewed by Darin Adler.

        * wtf/PlatformHave.h:

2021-01-28  Chris Dumez  <cdumez@apple.com>

        [macOS] Policy for warning about or killing processes using too much memory triggers too easily
        https://bugs.webkit.org/show_bug.cgi?id=221104
        <rdar://73625621>

        Reviewed by Geoff Garen.

        The policy for warning about or killing processes using too much memory was triggering too
        easily. I made the following changes to the policy to address this:
        1. We no longer kill WebProcesses associated with a visible (parented) view under any
           circumstances. We used to kill active WebProcesses when they reached 4GB. We would
           also kill visible WebProcesses when they reached 2GB if there were visible but not
           active / focused.
        2. For background WebProcesses (associated with non visible / parented views), I have
           raised the kill limit from 2GB to 4GB.
        3. For foreground WebProcesses (associated with visible / parent views), I have also
           raised the limit to show the excessive memory usage banner from 2GB to 4GB.

        * wtf/MemoryPressureHandler.cpp:
        (WTF::thresholdForMemoryKillOfInactiveProcess):
        (WTF::MemoryPressureHandler::thresholdForMemoryKill):
        (WTF::MemoryPressureHandler::shrinkOrDie):
        (WTF::MemoryPressureHandler::measurementTimerFired):
        * wtf/MemoryPressureHandler.h:

2021-01-28  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Add JSC_SIGNAL_FOR_GC environment variable for Linux / FreeBSD
        https://bugs.webkit.org/show_bug.cgi?id=221081

        Reviewed by Mark Lam.

        This patch adds JSC_SIGNAL_FOR_GC environment variable,
        which changes signal number used for GC suspension.

        * wtf/posix/ThreadingPOSIX.cpp:
        (WTF::Thread::initializePlatformThreading):

2021-01-25  Yusuke Suzuki  <ysuzuki@apple.com>

        WebAssembly: add support for stream APIs
        https://bugs.webkit.org/show_bug.cgi?id=173105

        Reviewed by Keith Miller.

        * wtf/PlatformEnable.h:

2021-01-27  Per Arne  <pvollan@apple.com>

        [macOS] Re-enable ENABLE_SET_WEBCONTENT_PROCESS_INFORMATION_IN_NETWORK_PROCESS
        https://bugs.webkit.org/show_bug.cgi?id=221039
        <rdar://problem/73665061>

        Reviewed by Brent Fulgham.

        * wtf/PlatformEnableCocoa.h:

2021-01-27  Antti Koivisto  <antti@apple.com>

        Implement visibility based resource load scheduling for low priority resources
        https://bugs.webkit.org/show_bug.cgi?id=220728

        Reviewed by Geoff Garen.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

        Add an internal setting, default to off for now.

2021-01-26  BJ Burg  <bburg@apple.com>

        REGRESSION(r267641): WebKitDeveloperExtras preference has no effect for WebKitLegacy clients
        https://bugs.webkit.org/show_bug.cgi?id=220996
        <rdar://72173139>

        Reviewed by Sam Weinig.

        This preference should use custom bindings for WebKitLegacy.

        * Scripts/Preferences/WebPreferencesDebug.yaml:

2021-01-26  Saam Barati  <sbarati@apple.com>

        Revive the build when MALLOC_HEAP_BREAKDOWN is enabled
        https://bugs.webkit.org/show_bug.cgi?id=220999

        Reviewed by Yusuke Suzuki.

        * wtf/Bag.cpp:
        * wtf/BitVector.cpp:
        * wtf/ConcurrentBuffer.cpp:
        * wtf/FastBitVector.cpp:
        * wtf/HashTable.cpp:
        * wtf/MetaAllocator.cpp:
        * wtf/RefCountedArray.cpp:
        * wtf/SegmentedVector.cpp:
        * wtf/SmallPtrSet.cpp:
        * wtf/UniqueArray.cpp:
        * wtf/Vector.cpp:
        * wtf/text/CString.cpp:
        * wtf/text/StringBuffer.cpp:

2021-01-26  Per Arne  <pvollan@apple.com>

        [macOS] Disable ENABLE_SET_WEBCONTENT_PROCESS_INFORMATION_IN_NETWORK_PROCESS
        https://bugs.webkit.org/show_bug.cgi?id=221006

        Unreviewed crash fix.

        Enabling this is causing a crash. Disable while investigating.

        * wtf/PlatformEnableCocoa.h:

2021-01-26  Alex Christensen  <achristensen@webkit.org>

        Forbid '|' in URL hosts
        https://bugs.webkit.org/show_bug.cgi?id=220778

        Reviewed by Youenn Fablet.

        This is one of the proposed solutions to https://github.com/whatwg/url/issues/559
        and RFC 3986 and 3987 forbid such characters, so let's try forbidding it.

        * wtf/URLParser.cpp:
        (WTF::isC0Control):
        (WTF::isForbiddenHostCodePoint):

2021-01-25  Chris Dumez  <cdumez@apple.com>

        Support AbortSignal in addEventListenerOptions to unsubscribe from events
        https://bugs.webkit.org/show_bug.cgi?id=218753
        <rdar://problem/71258012>

        Reviewed by Darin Adler.

        Add initializeWeakPtrFactory() protection function to CanMakeWeakPtr so that a subclass
        can eagerly initialize the WeakPtrFactory even if it does not subclass
        WeakPtrFactory<T, WeakPtrFactoryInitialization::Eager>. MessagePort used to subclass
        WeakPtrFactory<T, WeakPtrFactoryInitialization::Eager> for thread-safety reason but it
        now subclasses WeakPtrFactory<T, WeakPtrFactoryInitialization::Lazy> via EventTarget.

        * wtf/WeakPtr.h:
        (WTF::CanMakeWeakPtr::initializeWeakPtrFactory):

2021-01-25  Per Arne Vollan  <pvollan@apple.com>

        [macOS] Fix OS version check for ENABLE_SET_WEBCONTENT_PROCESS_INFORMATION_IN_NETWORK_PROCESS
        https://bugs.webkit.org/show_bug.cgi?id=219534
        <rdar://problem/71973149>

        Reviewed by Brent Fulgham.

        The OS version check for ENABLE_SET_WEBCONTENT_PROCESS_INFORMATION_IN_NETWORK_PROCESS is incorrect.

        * wtf/PlatformEnableCocoa.h:

2021-01-23  Xan Lopez  <xan@igalia.com>

        [JSC] Allow to build WebAssembly without B3
        https://bugs.webkit.org/show_bug.cgi?id=220365

        Reviewed by Yusuke Suzuki.

        * wtf/PlatformEnable.h: Disable WebAssembly on 32bit platforms,
        enable WebAssembly B3JIT on PLATFORM(COCOA).

2021-01-21  Chris Dumez  <cdumez@apple.com>

        Unreviewed attempt to fix WatchOS build after r271673.

        This feature is not available in the simulator for any of the
        IOS_FAMILY platforms.

        * wtf/PlatformHave.h:

2021-01-21  Chris Dumez  <cdumez@apple.com>

        Unreviewed, reverting r271727.

        Fix is wrong

        Reverted changeset:

        "Unreviewed attempt to fix WatchOS build after r271673."
        https://trac.webkit.org/changeset/271727

2021-01-21  Chris Dumez  <cdumez@apple.com>

        Unreviewed attempt to fix WatchOS build after r271673.

        * wtf/PlatformHave.h:

2021-01-21  Ryan Haddad  <ryanhaddad@apple.com>

        Add experimental support for separated layers
        https://bugs.webkit.org/show_bug.cgi?id=220734

        Unreviewed build fix.

        * wtf/PlatformHave.h: Remove watchOS and tvOS.

2021-01-21  Alex Christensen  <achristensen@webkit.org>

        Add experimental feature to use network loader
        https://bugs.webkit.org/show_bug.cgi?id=220521
        <rdar://problem/69394713>

        Reviewed by Geoff Garen.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        * wtf/PlatformHave.h:

2021-01-21  Aditya Keerthi  <akeerthi@apple.com>

        Unreviewed, reverting r271691.
        https://bugs.webkit.org/show_bug.cgi?id=220812

        Introduced crash, and failing API tests.

        Reverted changeset:

        "[macOS] Titlebar separator doesn't show when WKWebView is scrolled"
        https://bugs.webkit.org/show_bug.cgi?id=220633
        https://trac.webkit.org/changeset/271691

2021-01-21  Fujii Hironori  <Hironori.Fujii@sony.com>

        Remove ENABLE_USERSELECT_ALL macro which is enabled for all ports
        https://bugs.webkit.org/show_bug.cgi?id=100424

        Reviewed by Don Olmstead.

        * wtf/PlatformEnableCocoa.h:

2021-01-21  Sam Weinig  <weinig@apple.com>

        Add experimental support for separated layers
        https://bugs.webkit.org/show_bug.cgi?id=220734

        Reviewed by Simon Fraser.

        * wtf/PlatformHave.h:
        Define HAVE_CORE_ANIMATION_SEPARATED_LAYERS for supported configurations.

2021-01-21  Aditya Keerthi  <akeerthi@apple.com>

        [macOS] Titlebar separator doesn't show when WKWebView is scrolled
        https://bugs.webkit.org/show_bug.cgi?id=220633
        <rdar://problem/71094055>

        Reviewed by Tim Horton.

        * wtf/PlatformHave.h: Defined HAVE_NSSCROLLVIEW_SEPARATOR_TRACKING_ADAPTER.

2021-01-20  Youenn Fablet  <youenn@apple.com>

        Enable WebRTC VP9 profile 0 by default
        https://bugs.webkit.org/show_bug.cgi?id=219390

        Reviewed by Geoffrey Garen.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2021-01-19  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] StringImpl::removeCharacters should be inlined
        https://bugs.webkit.org/show_bug.cgi?id=220742

        Reviewed by Saam Barati.

        removeCharacters is used in WebCore's HTMLInputElement's critical path. And since String relatively has many elements (characters),
        non-inlined StringImpl::removeCharacters causes significant number of indirect function calls of `findMatch` argument since it is
        passed function pointer. We should make them templatized function to allow inlining of `findMatch` function to avoid repeated indirect calls.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::removeCharacters): Deleted.
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::removeCharactersImpl):
        (WTF::StringImpl::removeCharacters):
        * wtf/text/WTFString.cpp:
        (WTF::String::removeCharacters const): Deleted.
        * wtf/text/WTFString.h:
        (WTF::String::removeCharacters const):

2021-01-17  Yusuke Suzuki  <ysuzuki@apple.com>

        Add JSC API configuring GC signals in Linux
        https://bugs.webkit.org/show_bug.cgi?id=220641

        Reviewed by Mark Lam.

        In Linux and FreeBSD, we need to use signals to suspend and resume threads.
        By default, we are using SIGUSR1, but it is possible that some embedders want to use
        the other signals since they are using SIGUSR1 already. To work-around that, this
        patch offers the way for embedders to configure signals.

        * wtf/Threading.h:
        * wtf/WTFConfig.h:
        * wtf/posix/ThreadingPOSIX.cpp:
        (WTF::Thread::signalHandlerSuspendResume):
        (WTF::Thread::initializePlatformThreading):
        (WTF::Thread::initializeCurrentThreadEvenIfNonWTFCreated):
        (WTF::Thread::initializeCurrentTLS):
        (WTF::Thread::suspend):
        (WTF::Thread::resume):
        * wtf/threads/Signals.cpp:
        (WTF::addSignalHandler):
        * wtf/win/ThreadingWin.cpp:
        (WTF::Thread::initializeCurrentTLS):

2021-01-15  Chris Dumez  <cdumez@apple.com>

        [GPUProcess] Move DOM / Canvas rendering off the main thread in the GPUProcess
        https://bugs.webkit.org/show_bug.cgi?id=220476

        Reviewed by Simon Fraser.

        Add trait function that gets called TinyLRUCache to convert the key before storing
        it. It is useful for clients that need to call isolatedCopy() on the key String before
        storing it.

        * wtf/TinyLRUCache.h:
        (WTF::TinyLRUCachePolicy::createKeyForStorage):
        (WTF::TinyLRUCache::get):

2021-01-14  Alex Christensen  <achristensen@webkit.org>

        Add dotless j and small N to unicode lookalike character list
        https://bugs.webkit.org/show_bug.cgi?id=220632
        <rdar://problem/72101901>

        Reviewed by David Kilzer.

        They are visually distinguishable from j and n, but they are also not used in any common languages like dotless i is,
        (I know, all my international phonetic alphabet enthusiast friends are disappointed)
        so there's not much reason not to add them.  Chrome and Firefox have already added them, so let's do it too.

        * wtf/URLHelpers.cpp:
        (WTF::URLHelpers::isLookalikeCharacter):

2021-01-14  Geoffrey Garen  <ggaren@apple.com>

        Removed most uses of dispatch_async(dispatch_get_main_queue(), ...)
        https://bugs.webkit.org/show_bug.cgi?id=220066

        Reviewed by Antti Koivisto.

        dispatch_async has two downsides:

        (1) Its order is undefined (and in practice highly variable) relative to
        other WebKit operations. This sometimes causes flakiness.

        (2) It doesn't honor the RunLoop first paint optimization.

        We can use RunLoop::dispatch() instead.

        * wtf/cocoa/MainThreadCocoa.mm:
        (WTF::dispatchAsyncOnMainThreadWithWebThreadLockIfNeeded):
        (WTF::callOnWebThreadOrDispatchAsyncOnMainThread):

2021-01-14  Per Arne Vollan  <pvollan@apple.com>

        [GPUP][iOS] Create sandbox extensions for cache and temp directory
        https://bugs.webkit.org/show_bug.cgi?id=220595
        <rdar://problem/72450307>

        Reviewed by Chris Dumez.

        Add USE define for using sandbox extensions to grant access to cache and temp directory.

        * wtf/PlatformUse.h:

2021-01-13  Myles C. Maxfield  <mmaxfield@apple.com>

        Delete sexist comment
        https://bugs.webkit.org/show_bug.cgi?id=220603

        Reviewed by Alex Christensen.

        * wtf/StdLibExtras.h:

2021-01-11  Kimmo Kinnunen  <kkinnunen@apple.com>

        WebKit::IPC::Encoder needs definitions of all custom enum values at the Encoder definition time
        https://bugs.webkit.org/show_bug.cgi?id=220410

        Reviewed by Darin Adler.

        Change WTF::EnumTraits to have either EnumTraits::values or EnumTraits::isValidEnum().
        Previously, if clients wanted to check isValidEnum for custom enum, they had to:
         1) Define HasCustomIsValidEnum<TheirEnum> : true_type {};
         2) Define new function template isValidEnum() for TheirEnum
         3) Ensure that their isValidEnum() was defined before the definition of the call to
            the isValidEnum().

        This has the problem that isValidEnum() cannot be called in generic code, because
        at the definition time generic code typically does not have all the types in scope
        that will be used at instantiation time.
        Each isValidEnum() is their own function template, C++ does not have function template
        specialization.

        After the change, clients need to:
         1) Define EnumTraits<TheirEnum> { bool isValidEnum(...) }

        Fix by using the fact that WTF::EnumTraits is a class and that can have template
        specializations.

        Consistent with the EnumTraits::values case:
          a) Automatic case?     --> Define EnumTraits::values
          b) Manual/custom case? --> Define EnumTraits::isValidEnum()

        * wtf/EnumTraits.h:
        (WTF::isValidEnum):

2021-01-08  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Disable JITCage compile time in old iOS
        https://bugs.webkit.org/show_bug.cgi?id=220477

        Reviewed by Darin Adler.

        ENABLE(JIT_CAGE) becomes false in old iOS.

        * wtf/PlatformEnable.h:

2021-01-08  Chris Dumez  <cdumez@apple.com>

        Make it safe to re-enter HashMap::clear()
        https://bugs.webkit.org/show_bug.cgi?id=220445

        Reviewed by Geoffrey Garen.

        Make it safe to re-enter HashMap::clear(). This will fix some crashes on the GPUProcess bots
        due to DisplayList::clear() re-entering via HashMap::clear().

        * wtf/HashTable.h:
        (WTF::KeyTraits>::clear):

2021-01-07  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r271192.
        https://bugs.webkit.org/show_bug.cgi?id=220440


        Reverted changeset:

        "NSCrossWebsiteTrackingUsageDescription is not working on Mac,
        ITP is always enabled"
        https://bugs.webkit.org/show_bug.cgi?id=220190
        https://trac.webkit.org/changeset/271192

2021-01-07  Monson Shao  <holymonson@gmail.com>

        [CMake] Add USE_APPLE_ICU option
        https://bugs.webkit.org/show_bug.cgi?id=220081

        Reviewed by Yusuke Suzuki.

        Add USE_APPLE_ICU option to allow non-Mac ports (GTK or JSCOnly) on Darwin could build with
        non-Apple ICU.

        * CMakeLists.txt:

2021-01-07  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Build failures with GTK4 3.99.5.1
        https://bugs.webkit.org/show_bug.cgi?id=219844

        Reviewed by Philippe Normand.

        * wtf/Platform.h:

2021-01-06  Jer Noble  <jer.noble@apple.com>

        [Cocoa] Revert audioTimePitchAlgorithm to "TimeDomain" from "Spectral"
        https://bugs.webkit.org/show_bug.cgi?id=220341

        Reviewed by Youenn Fablet.

        Add a private preference to control what pitch correction algorithm will be used by MediaPlayer.

        * Scripts/Preferences/WebPreferences.yaml:

2021-01-06  Andy Estes  <aestes@apple.com>

        [Mac] Replace most uses of HAVE(MT_PLUGIN_FORMAT_READER) with ENABLE(WEBM_FORMAT_READER)
        https://bugs.webkit.org/show_bug.cgi?id=220374
        <rdar://problem/72600426>

        Reviewed by Eric Carlson.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        * wtf/PlatformEnableCocoa.h:

2021-01-05  Kate Cheney  <katherine_cheney@apple.com>

        NSCrossWebsiteTrackingUsageDescription is not working on Mac, ITP is always enabled
        https://bugs.webkit.org/show_bug.cgi?id=220190
        <rdar://problem/72744909>

        Reviewed by Brent Fulgham.

        * wtf/PlatformUse.h:

2021-01-05  Chris Dumez  <cdumez@apple.com>

        [iOS] Add a feature flag to stop leaking an XPC boost message to XPC services
        https://bugs.webkit.org/show_bug.cgi?id=219453
        <rdar://72834999>

        Reviewed by Geoff Garen.

        Add new RUNNINGBOARD_WEBKIT_PRIORITY_SUPPORT build time flag since we need a recent
        enough build of RunningBoard to do this.

        * wtf/PlatformHave.h:

2020-12-27  Wenson Hsieh  <wenson_hsieh@apple.com>

        Add a helper method to WTF::MachSemaphore to wait with a timeout duration
        https://bugs.webkit.org/show_bug.cgi?id=220110

        Reviewed by Sam Weinig.

        Adds a helper method on the cross-process WTF::MachSemaphore class (to be utilized in webkit.org/b/219586).

        * wtf/cocoa/MachSemaphore.cpp:
        (WTF::MachSemaphore::waitFor):

        This wraps a call to `semaphore_timedwait`, and converts the given time (in WTF::Seconds) into a
        `mach_timespec_t`, which is an unsigned representing the number of seconds, along with another integer
        representing the number of nanoseconds.

        * wtf/cocoa/MachSemaphore.h:

2020-12-23  Monson Shao  <holymonson@gmail.com>

        [GTK][CMake] Forward missing header on Darwin
        https://bugs.webkit.org/show_bug.cgi?id=220114

        Reviewed by Alex Christensen.

        Building jsc with GTK port on Darwin needs spi/darwin/ProcessMemoryFootprint.h

        * wtf/PlatformGTK.cmake:

2020-12-20  Chris Dumez  <cdumez@apple.com>

        Unreviewed, reverting r270969.

        Regressed MotionMark with GPUProcess enabled

        Reverted changeset:

        "[iOS] Stop leaking an XPC boost message to XPC services"
        https://bugs.webkit.org/show_bug.cgi?id=219453
        https://trac.webkit.org/changeset/270969

2020-12-18  Megan Gardner  <megan_gardner@apple.com>

        Gate all of the code associated with app highlights
        https://bugs.webkit.org/show_bug.cgi?id=220003

        Reviewed by Tim Horton.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

2020-12-18  Chris Dumez  <cdumez@apple.com>

        [iOS] Stop leaking an XPC boost message to XPC services
        https://bugs.webkit.org/show_bug.cgi?id=219453

        Reviewed by Geoff Garen.

        Add new RUNNINGBOARD_WEBKIT_PRIORITY_SUPPORT build time flag since we need a recent
        enough build of RunningBoard to do this.

        * wtf/PlatformHave.h:

2020-12-17  Chris Dumez  <cdumez@apple.com>

        Unreviewed, drop unnecessary forward declaration added in r270938.

        * wtf/cocoa/MachSemaphore.h:

2020-12-17  Chris Dumez  <cdumez@apple.com>

        [GPUProcess] Replace WebAudio rendering timer with a cross-process semaphore
        https://bugs.webkit.org/show_bug.cgi?id=219964

        Reviewed by Geoff Garen.

        Introduce MachSemaphore class, which is a C++ wrapper around a low-level
        mach semaphore. This semaphore can be used cross-process and sent via
        IPC as a MachSendRight.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/PlatformMac.cmake:
        * wtf/cocoa/MachSemaphore.cpp: Added.
        (WTF::MachSemaphore::MachSemaphore):
        (WTF::MachSemaphore::~MachSemaphore):
        (WTF::MachSemaphore::signal):
        (WTF::MachSemaphore::wait):
        (WTF::MachSemaphore::createSendRight):
        * wtf/cocoa/MachSemaphore.h: Added.

2020-12-15  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Accept arbitrary module namespace identifier names
        https://bugs.webkit.org/show_bug.cgi?id=217576

        Reviewed by Darin Adler.

        * wtf/text/StringView.h:
        (WTF::hasUnpairedSurrogate):

2020-12-15  Jer Noble  <jer.noble@apple.com>

        [Cocoa] Adopt -externalContentProtectionStatus
        https://bugs.webkit.org/show_bug.cgi?id=219911

        Reviewed by Eric Carlson.

        * wtf/PlatformHave.h:

2020-12-15  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r270860.
        https://bugs.webkit.org/show_bug.cgi?id=219918

        We workaround it differently, so this revert is not necessary

        Reverted changeset:

        "Unreviewed, reverting r269320, r269341, r269502, and
        r269576."
        https://bugs.webkit.org/show_bug.cgi?id=219915
        https://trac.webkit.org/changeset/270860

2020-12-15  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r269320, r269341, r269502, and r269576.
        https://bugs.webkit.org/show_bug.cgi?id=219915

        ICU C++ internal API causes trouble

        Reverted changesets:

        "REGRESSION (r254038): Simple.com money transfer UI is very
        laggy (multiple seconds per keypress)"
        https://bugs.webkit.org/show_bug.cgi?id=218348
        https://trac.webkit.org/changeset/269320

        "[JSC] Obtain default timezone ID from cached icu::TimeZone"
        https://bugs.webkit.org/show_bug.cgi?id=218531
        https://trac.webkit.org/changeset/269341

        "toLocaleDateString() resolves incorrect date for some old
        dates"
        https://bugs.webkit.org/show_bug.cgi?id=161623
        https://trac.webkit.org/changeset/269502

        "[JSC] Add TimeZone range cache over ICU TimeZone API"
        https://bugs.webkit.org/show_bug.cgi?id=218681
        https://trac.webkit.org/changeset/269576

2020-12-15  Sihui Liu  <sihui_liu@apple.com>

        Enable SpeechRecognition by default
        https://bugs.webkit.org/show_bug.cgi?id=219798

        Reviewed by Youenn Fablet.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-12-14  Alex Christensen  <achristensen@webkit.org>

        Get more informatiton from assertion when uidna_openUTS46 fails
        https://bugs.webkit.org/show_bug.cgi?id=219881

        Reviewed by Alexey Proskuryakov.

        <rdar://problem/66988046> shows that this fails sometimes.
        Updating the assertion should let me know more information.

        * wtf/URLParser.cpp:
        (WTF::URLParser::internationalDomainNameTranscoder):

2020-12-14  Chris Dumez  <cdumez@apple.com>

        [GPUProcess] Bump QoS to UserInteractive for real-time audio rendering thread
        https://bugs.webkit.org/show_bug.cgi?id=219873

        Reviewed by Eric Carlson.

        Add QOS parameter to the Thread construct (similarly to WorkQueue) so that the caller can
        specify which QoS to use for the thread. Previously, the code was using UserInteractive
        QoS unconditionally, which may be too high is some cases and too low in others.

        * wtf/Threading.cpp:
        (WTF::Thread::create):
        * wtf/Threading.h:
        * wtf/WorkQueue.h:
        * wtf/cocoa/WorkQueueCocoa.cpp:
        (WTF::WorkQueue::platformInitialize):
        (WTF::dispatchQOSClass): Deleted.
        * wtf/posix/ThreadingPOSIX.cpp:
        (WTF::Thread::dispatchQOSClass):
        (WTF::Thread::establishHandle):
        * wtf/win/ThreadingWin.cpp:
        (WTF::Thread::establishHandle):

2020-12-14  Tadeu Zagallo  <tzagallo@apple.com>

        Move some of the work from JSLock to VMEntryScope
        https://bugs.webkit.org/show_bug.cgi?id=219830

        Reviewed by Mark Lam.

        Add a unique ID to threads. This uid is used in JSLock to avoid unnecessary work when the
        same thread that last acquired the lock is reacquiring it.

        * wtf/Threading.cpp:
        * wtf/Threading.h:
        (WTF::Thread::uid const):
        (WTF::Thread::Thread):

2020-12-13  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Introduce vmEntryCustomAccessor and vmEntryHostFunction for JITCage
        https://bugs.webkit.org/show_bug.cgi?id=219847

        Reviewed by Mark Lam.

        * wtf/PlatformCallingConventions.h:

2020-12-14  Youenn Fablet  <youenn@apple.com>

        Pass an isolated copy of Settings to workers and worklets.
        https://bugs.webkit.org/show_bug.cgi?id=219688

        Reviewed by Sam Weinig.

        Add missing default values.

        * Scripts/Preferences/WebPreferences.yaml:

2020-12-13  Andy Estes  <aestes@apple.com>

        [Mac] Register the format reader plug-in for WebM content types
        https://bugs.webkit.org/show_bug.cgi?id=218908
        <rdar://problem/71373264>

        Reviewed by Eric Carlson.

        * Scripts/Preferences/WebPreferencesExperimental.yaml: Added an experimental web
        preference.

2020-12-12  Ryan Haddad  <ryanhaddad@apple.com>

        Unreviewed, reverting r270661.

        Caused layout test failures and timeouts

        Reverted changeset:

        "Unreviewed, re-landing r270132."
        https://bugs.webkit.org/show_bug.cgi?id=202874
        https://trac.webkit.org/changeset/270661

2020-12-12  Jiewen Tan  <jiewen_tan@apple.com>

        [WebAuthn][iOS] Turn on modern WebAuthn for default browsers
        https://bugs.webkit.org/show_bug.cgi?id=219823
        <rdar://problem/72250436>

        Reviewed by Brent Fulgham.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        Does the meat.

2020-12-11  Ryosuke Niwa  <rniwa@webkit.org>

        [GPU Process] Cache Font objects
        https://bugs.webkit.org/show_bug.cgi?id=219672

        Reviewed by Wenson Hsieh.

        Specify the width of enum classes so that they can be forward declared.

        * wtf/MemoryPressureHandler.h:

2020-12-11  Eric Carlson  <eric.carlson@apple.com>

        [Cocoa] Add Experimental Vorbis support
        https://bugs.webkit.org/show_bug.cgi?id=219810
        <rdar://problem/72242614>

        Reviewed by Jer Noble.

        * Scripts/Preferences/WebPreferencesExperimental.yaml: Added an experimental web
        preference.
        * wtf/PlatformEnableCocoa.h: Define ENABLE_VORBIS.

2020-12-11  Jer Noble  <jer.noble@apple.com>

        [Cocoa] Add Experimental VP8 support
        https://bugs.webkit.org/show_bug.cgi?id=219732

        Reviewed by Eric Carlson.

        Add a new VP8 experimental feature flag.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-12-11  Tim Horton  <timothy_horton@apple.com>

        Trackpad and Mouse scroll events on iPad only fire "pointermove" -- not "wheel"
        https://bugs.webkit.org/show_bug.cgi?id=210071
        <rdar://problem/54616853>

        Reviewed by Simon Fraser.

        * wtf/PlatformEnableCocoa.h:
        Enable wheel event regions on iOS + macCatalyst.

2020-12-11  Brent Fulgham  <bfulgham@apple.com>

        Expose API for enabling/disabling Private Click Measurement
        https://bugs.webkit.org/show_bug.cgi?id=219791
        <rdar://problem/70502198>

        Reviewed by Alex Christensen.

        This patch moves the flag for enabling and disabling PCM support from the Experimental
        features settings to standard settings in preparation for exposing the option in more
        permanent UI. This patch does not make any changes in behavior.

        * Scripts/Preferences/WebPreferences.yaml: Add PCM flag here.
        * Scripts/Preferences/WebPreferencesExperimental.yaml: Remove PCM flag from here.

2020-12-11  Don Olmstead  <don.olmstead@sony.com>

        [CMake] Determine correct visibility for linked frameworks
        https://bugs.webkit.org/show_bug.cgi?id=210366

        Reviewed by Michael Catanzaro.

        Set WTF_FRAMEWORKS to determine correct linkage for the library. Remove
        explicit setting of STATICALLY_LINKED_WITH_${framework} by ports.

        * wtf/CMakeLists.txt:
        * wtf/PlatformPlayStation.cmake:

2020-12-11  Chris Lord  <clord@igalia.com>

        [GTK][WPE] Async overflow scrolling is disabled by default due to brokenness
        https://bugs.webkit.org/show_bug.cgi?id=219776

        Reviewed by Žan Doberšek.

        Enable async overflow scrolling with Nicosia.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

2020-12-11  Youenn Fablet  <youenn@apple.com>

        Enable WebRTCPlatformSocketsEnabled by default
        https://bugs.webkit.org/show_bug.cgi?id=219778

        Reviewed by Eric Carlson.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-12-10  John Wilander  <wilander@apple.com>

        PCM: Turn feature on by default
        https://bugs.webkit.org/show_bug.cgi?id=219762
        <rdar://problem/56118178>

        Reviewed by Brent Fulgham.

        This patch turns on Private Click Measurement (PCM) by default.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-12-10  Andy Estes  <aestes@apple.com>

        [Mac] Create a format reader plug-in for WebM
        https://bugs.webkit.org/show_bug.cgi?id=218908
        <rdar://problem/71373264>

        Reviewed by Eric Carlson.

        * wtf/PlatformHave.h: Defined HAVE_MT_PLUGIN_FORMAT_READER.

2020-12-10  Geoffrey Garen  <ggaren@apple.com>

        Unreviewed, re-landing r270132.

        Regression test failures have been resolved.

        Re-landed changeset:

        "Use a Version 1 CFRunLoopSource for faster task dispatch"
        https://bugs.webkit.org/show_bug.cgi?id=202874
        https://trac.webkit.org/changeset/270132

2020-12-10  Dean Jackson  <dino@apple.com>

        Add runtime flag for ANGLE on Metal
        https://bugs.webkit.org/show_bug.cgi?id=219661

        Reviewed by Sam Weinig.

        New internal feature flag "WebGL on Metal".

        * Scripts/Preferences/WebPreferencesInternal.yaml:

2020-12-10  Chris Dumez  <cdumez@apple.com>

        Unreviewed, reverting r270542.

        Seems to have regressed perf benchmarks

        Reverted changeset:

        "[iOS] Stop leaking an XPC boost message to XPC services"
        https://bugs.webkit.org/show_bug.cgi?id=219453
        https://trac.webkit.org/changeset/270542

2020-12-10  Youenn Fablet  <youenn@apple.com>

        Gate VP9 exposure in MediaCapabilities on VP9DecoderEnabled preference
        https://bugs.webkit.org/show_bug.cgi?id=219640

        Reviewed by Eric Carlson.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-12-10  Youenn Fablet  <youenn@apple.com>

        ICE does not resolve for `turns` relay candidates rooted in LetsEncrypt CA
        https://bugs.webkit.org/show_bug.cgi?id=219274

        Reviewed by Eric Carlson.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-12-10  Jiewen Tan  <jiewen_tan@apple.com>

        Unreviewed, build fix after r270616

        Adds a platform have flag.

        * wtf/PlatformHave.h:

2020-12-09  Cathie Chen  <cathiechen@igalia.com>

        Support overscroll-behavior parsing
        https://bugs.webkit.org/show_bug.cgi?id=219305

        Reviewed by Simon Fraser.

        Based on Frédéric Wang's patch.

        Add an experimental feature flag for overscroll-behavior.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-12-09  Chris Dumez  <cdumez@apple.com>

        Turn on HAVE(SYSTEM_FEATURE_FLAGS) on WatchOS and TvOS
        https://bugs.webkit.org/show_bug.cgi?id=219703

        Reviewed by Darin Adler.

        Turn on HAVE(SYSTEM_FEATURE_FLAGS) on WatchOS and TvOS. This should fix the build
        after r270542.

        * wtf/PlatformHave.h:

2020-12-08  Devin Rousso  <drousso@apple.com>

        [macCatalyst] Enable context menus for WKWebView
        https://bugs.webkit.org/show_bug.cgi?id=219617
        <rdar://problem/53770300>

        Reviewed by Tim Horton.

        * wtf/PlatformEnableCocoa.h:
        * wtf/PlatformHave.h:

2020-12-08  Simon Fraser  <simon.fraser@apple.com>

        Make ScrollingPerformanceLoggingEnabled an internal debug preference
        https://bugs.webkit.org/show_bug.cgi?id=219647

        Reviewed by Sam Weinig.

        Rename ScrollingPerformanceLoggingEnabled to ScrollingPerformanceTestingEnabled and make
        it an Internal Debug preference.

        Remove ForceUpdateScrollbarsOnMainThreadForPerformanceTesting.

        * Scripts/Preferences/WebPreferences.yaml:
        * Scripts/Preferences/WebPreferencesInternal.yaml:

2020-12-08  Chris Dumez  <cdumez@apple.com>

        [iOS] Stop leaking an XPC boost message to XPC services
        https://bugs.webkit.org/show_bug.cgi?id=219453

        Reviewed by Geoffrey Garen.

        Add new RUNNINGBOARD_WEBKIT_PRIORITY_SUPPORT build time flag since we need a recent
        enough build of RunningBoard to do this.

        * wtf/PlatformHave.h:

2020-12-07  Don Olmstead  <don.olmstead@sony.com>

        [CMake] Remove WEBKIT_WRAP_SOURCELIST
        https://bugs.webkit.org/show_bug.cgi?id=196916

        Reviewed by Michael Catanzaro.

        * wtf/CMakeLists.txt:

2020-12-07  Zan Dobersek  <zdobersek@igalia.com>

        [GLib] Leaked RunLoop objects on worker threads
        https://bugs.webkit.org/show_bug.cgi?id=219232
        <rdar://problem/71772277>

        Reviewed by Geoffrey Garen.

        During the thread-local RunLoop::Holder destruction, explicitly clear out
        the iteration Deque objects on the held RunLoop, destroying any Function
        objects that never got to execute on this thread. Generally, this allows
        for any RunLoop reference stored in these objects to be released.

        Specifically, this would allow for destruction of the RunLoop::Timer
        object that's queued up in the JSRunLoopTimer::Manager::PerVMData
        destructor but never gets dispatched because the thread (a JS worker) is
        shut down before that happens. Destruction of the timer will release the
        reference of the RunLoop that's held by the RunLoop::Holder, finally
        enabling the RunLoop object itself be destroyed once the RunLoop::Holder
        reference is let go.

        * wtf/RunLoop.cpp:
        (WTF::RunLoop::Holder::~Holder):
        (WTF::RunLoop::threadWillExit):
        * wtf/RunLoop.h:

2020-12-06  Samuel Thibault  <samuel.thibault@ens-lyon.org>

        [WTF] Add Unix-generic way of determining the available RAM
        https://bugs.webkit.org/show_bug.cgi?id=219570
        sysconf(_SC_PHYS_PAGES) and sysconf(_SC_PAGE_SIZE) are a very generic way to get

        Reviewed by Fujii Hironori.

        * wtf/RAMSize.cpp:
        (WTF::computeRAMSize): Fallback to sysconf to determine RAM size.

2020-12-05  Fujii Hironori  <Hironori.Fujii@sony.com>

        Remove ENABLE_GRAPHICS_CONTEXT_GL by replacing it with ENABLE(WEBGL)
        https://bugs.webkit.org/show_bug.cgi?id=219551

        Reviewed by Kenneth Russell.

        * wtf/Platform.h:
        * wtf/PlatformEnable.h:

2020-12-04  David Kilzer  <ddkilzer@apple.com>

        Add safety checks to xsltParamArrayFromParameterMap()
        <https://webkit.org/b/219407>
        <rdar://problem/71853069>

        Reviewed by Darin Adler.

        * wtf/PlatformHave.h:
        (HAVE_LIBXSLT_FIX_FOR_RADAR_71864140): Add.

2020-12-04  Kate Cheney  <katherine_cheney@apple.com>

        Create API to enable/disable text interaction gestures in WKWebView
        https://bugs.webkit.org/show_bug.cgi?id=217784
        <rdar://problem/63406241>

        Reviewed by Wenson Hsieh.

        Create new WKPreference. See WebKit Changelog for details.

        * Scripts/Preferences/WebPreferences.yaml:

2020-12-04  Adam Roben  <aroben@apple.com>

        More FALLBACK_PLATFORM adoption
        https://bugs.webkit.org/show_bug.cgi?id=219545

        Reviewed by Tim Horton.

        * Configurations/SDKVariant.xcconfig:
        WK_EMPTY_$(THIS_IS_NOT_EMPTY) evaluates to the empty string, not to
        NO.

2020-12-03  Adam Roben  <aroben@apple.com>

        Adopt FALLBACK_PLATFORM
        https://bugs.webkit.org/show_bug.cgi?id=219504

        Reviewed by Tim Horton.

        * Configurations/SDKVariant.xcconfig: Use FALLBACK_PLATFORM it if it's
        defined, otherwise use PLATFORM_NAME as before.

2020-12-03  Chris Dumez  <cdumez@apple.com>

        Refactor macros for low power mode code
        https://bugs.webkit.org/show_bug.cgi?id=219497

        Reviewed by Geoffrey Garen.

        Add new HAVE_APPLE_LOW_POWER_MODE_SUPPORT macro, enabled on iOS_FAMILY.

        * wtf/PlatformHave.h:

2020-12-03  Fujii Hironori  <Hironori.Fujii@sony.com>

        Remove GraphicsContextGLOpenGL::setRenderbufferStorageFromDrawable declaration
        https://bugs.webkit.org/show_bug.cgi?id=219463

        Reviewed by Alex Christensen.

        * wtf/Platform.h: Removed checking whether USE_ANGLE, USE_OPENGL,
        and USE_OPENGL_ES are exclusive because Cocoa ports no longer use
        USE_OPENGL and USE_OPENGL_ES, and they are not exclusive on
        non-Cocoa ports.

2020-12-03  Lauro Moura  <lmoura@igalia.com>

        [WTF] Avoid JSONValue::create with raw string falling to bool overload
        https://bugs.webkit.org/show_bug.cgi?id=219483

        Reviewed by Adrian Perez de Castro.

        r269757 removed the const char* overload for Value::create() and replaced
        them with makeString() versions. While this worked most of the time, one
        could still call Value::create(raw_string) and it would end up calling the
        bool overload. This could cause side effects like making a number of
        WebDriver tests to fail with wrong types in the executed javascript code.

        To avoid these accidental conversions, this commit added an overload to
        delete all implicit conversions of Value::create().

        * wtf/JSONValues.h: Delete implicit overloads for Value::create(T).

2020-12-02  Michael Catanzaro  <mcatanzaro@gnome.org>

        aarch64 llint does not build with JIT disabled
        https://bugs.webkit.org/show_bug.cgi?id=219288
        <rdar://problem/71855960>

        Rename USE(JUMP_ISLANDS) to ENABLE(JUMP_ISLANDS), and make it depend on ENABLE(JIT). We need
        it to depend on ENABLE(JIT) to fix the build, but this is awkward to do otherwise, because
        USE macros are defined in PlatformUse.h before ENABLE macros in PlatformEnable.h. But it
        makes sense, since USE macros should be used for "a particular third-party library or
        optional OS service," and jump islands are neither, so ENABLE is more suitable anyway.

        Reviewed by Darin Adler.

        * wtf/PlatformEnable.h:
        * wtf/PlatformUse.h:

2020-12-01  Youenn Fablet  <youenn@apple.com>

        Update list of block ports according fetch spec
        https://bugs.webkit.org/show_bug.cgi?id=219154

        Reviewed by Sam Weinig.

        * wtf/URL.cpp:
        (WTF::portAllowed):

2020-12-01  Ryan Haddad  <ryanhaddad@apple.com>

        Unreviewed, reverting r270132.

        Caused at least one regression test failure
        (webkit.org/b/219401)

        Reverted changeset:

        "Use a Version 1 CFRunLoopSource for faster task dispatch"
        https://bugs.webkit.org/show_bug.cgi?id=202874
        https://trac.webkit.org/changeset/270132

2020-11-30  Youenn Fablet  <youenn@apple.com>

        Introduce an experimental flag specific to VP9 profile 2
        https://bugs.webkit.org/show_bug.cgi?id=219350

        Reviewed by Eric Carlson.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-11-28  Per Arne Vollan  <pvollan@apple.com>

        [macOS] Set application information in the Networking process on behalf of the WebContent process
        https://bugs.webkit.org/show_bug.cgi?id=218052
        <rdar://problem/70586405>

        Reviewed by Brent Fulgham.

        Add define to enable this feature.

        * wtf/PlatformEnableCocoa.h:

2020-11-26  Fujii Hironori  <Hironori.Fujii@sony.com>

        [WinCairo] Enable GPU process
        https://bugs.webkit.org/show_bug.cgi?id=219294

        Reviewed by Don Olmstead.

        * wtf/PlatformHave.h: Turned HAVE_SYSTEM_FEATURE_FLAGS on for Windows.

2020-11-26  Michael Catanzaro  <mcatanzaro@gnome.org>

        [WPE][GTK] Fix build with GCC 11
        https://bugs.webkit.org/show_bug.cgi?id=219264

        Reviewed by Carlos Garcia Campos.

        It's not uncommon for really old code like this to abuse volatile as if it were a
        synchronization primitive. It's not. This code is already synchronized by use of GOnce, so
        it can be safely removed. References:

        https://gitlab.gnome.org/GNOME/glib/-/issues/600#note_877282
        http://isvolatileusefulwiththreads.in/C++/

        * wtf/glib/WTFGType.h:

2020-11-21  Simon Fraser  <simon.fraser@apple.com>

        Add an Experimental Features for wheel event gestures becoming non-blocking
        https://bugs.webkit.org/show_bug.cgi?id=219236

        Reviewed by Sam Weinig.

        Add a feature flag for the behavior that is being added via webkit.org/b/218764,
        which is that only the first wheel event in a gesture is cancelable.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-11-20  Geoffrey Garen  <ggaren@apple.com>

        Use a Version 1 CFRunLoopSource for faster task dispatch
        https://bugs.webkit.org/show_bug.cgi?id=202874

        Reviewed by Simon Fraser.

        This performance bottleneck showed up in IndexedDB. We worked around it
        by switching to WorkQueueMessageReceiver. Now it's showing up again
        in the GPU Process.

        * wtf/RunLoop.h: Added a mach port. We use this for wake-up.

        * wtf/cf/RunLoopCF.cpp:
        (WTF::RunLoop::performWork): Use the standard declaration for a
        Version 1 run loop source callback.

        (WTF::RunLoop::RunLoop): Use a dummy mach port for wake-ups. The default
        wake-up mechanism uses pthread APIs, which cost hundreds of microseconds
        per invocation, even on the most modern hardware. In contrast, a mach
        message takes about nine microseconds.

        (WTF::RunLoop::~RunLoop): Free the mach port.

        (WTF::RunLoop::wakeUp): Copy-pasted code to signal a mach port. The
        message payload doesn't matter because we're just trying to achieve
        a wakeup, kind of like calling a void() function.

2020-11-20  Don Olmstead  <don.olmstead@sony.com>

        Remove quota module
        https://bugs.webkit.org/show_bug.cgi?id=219206

        Reviewed by Anders Carlsson.

        Remove the ENABLE_QUOTA macro.

        * wtf/PlatformEnable.h:

2020-11-20  Philippe Normand  <pnormand@igalia.com>

        [MSE] Infinite loop in sample eviction when duration is NaN
        https://bugs.webkit.org/show_bug.cgi?id=218228

        Reviewed by Darin Adler.

        * wtf/MediaTime.h: New isFinite() method, to check if the MediaTime is valid and represents
        a finite value, eg not NaN or Infinite.

2020-11-19  Ada Chan  <adachan@apple.com>

        Turn on ENABLE_WEBXR for Cocoa
        https://bugs.webkit.org/show_bug.cgi?id=219171

        Reviewed by Tim Horton.

        * wtf/PlatformEnableCocoa.h:
        * wtf/PlatformUse.h:

2020-11-19  Saam Barati  <sbarati@apple.com>

        Use os_thread_self_restrict_rwx_is_supported instead of pthread_jit_write_protect_supported_np on Apple Internal SDK builds
        https://bugs.webkit.org/show_bug.cgi?id=219099
        <rdar://problem/71547048>

        Reviewed by Mark Lam.

        * wtf/PlatformHave.h:
        * wtf/PlatformUse.h:

2020-11-18  Yousuke Kimoto  <Yousuke.Kimoto@sony.com>

        [WTF] Fix a condition to check if statvfs() succeeds in getVolumeFreeSpace()
        https://bugs.webkit.org/show_bug.cgi?id=219138

        Reviewed by Alexey Proskuryakov.

        statvfs() returns Zero on success but getVolumeFreeSpace() treats a non Zero value
        as a succes case. The condition is oppsite to the spec of statvfs().

        * wtf/posix/FileSystemPOSIX.cpp:

2020-11-17  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Improve Wasm binary test coverage
        https://bugs.webkit.org/show_bug.cgi?id=204843

        Reviewed by Darin Adler.

        LEBDecoder should have more strict validation. One thing is that, we should reject pattern that includes ignored bits.
        For example, in uint32_t, we can represent UINT32_MAX in 5 bytes like this.

            0xff, 0xff, 0xff, 0xff, 0x0f
            0b1111111_1111111_1111111_1111111_1111

        Leading bytes has 0x80 trailing marker. And they includes each 7 bit slice. And the last byte includes 0b1111 part.
        But we can also make it in the following form

            0xff, 0xff, 0xff, 0xff, 0xff
            0b1111111_1111111_1111111_1111111_1111

        In the above case, the last byte's upper 4 bits are ignored in the result, and this is wrong in LEB128 encoding.
        We should reject this input since the last byte includes overflown bits.
        This patch adds this validation to WTF.

        * wtf/LEBDecoder.h:
        (WTF::LEBDecoder::maxByteLength):
        (WTF::LEBDecoder::lastByteMask):
        (WTF::LEBDecoder::decodeUInt):
        (WTF::LEBDecoder::decodeInt):

2020-11-18  Darin Adler  <darin@apple.com>

        Remove advanced plug-in feature: small plug-in blocking
        https://bugs.webkit.org/show_bug.cgi?id=219101

        Reviewed by Anders Carlsson.

        * Scripts/Preferences/WebPreferencesInternal.yaml: Removed BlockingOfSmallPluginsEnabled.

2020-11-18  Yusuke Suzuki  <ysuzuki@apple.com>

        Unreviewed, relanding r269940
        https://bugs.webkit.org/show_bug.cgi?id=219076

        * wtf/PlatformEnable.h:

2020-11-18  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r269940.
        https://bugs.webkit.org/show_bug.cgi?id=219076

        caused seemingly-infinite build time regression

        Reverted changeset:

        "[JSC] Implement WebAssembly.Memory with shared"
        https://bugs.webkit.org/show_bug.cgi?id=218693
        https://trac.webkit.org/changeset/269940

2020-11-17  Ryan Haddad  <ryanhaddad@apple.com>

        Build fails on internal simulator builds due to missing enum kCVPixelFormatType_AGX_420YpCbCr8BiPlanarVideoRange
        https://bugs.webkit.org/show_bug.cgi?id=219030

        Unreviewed build fix for macCatalyst.

        * wtf/PlatformHave.h:

2020-11-17  Kimmo Kinnunen  <kkinnunen@apple.com>

        Build fails on internal simulator builds due to missing enum kCVPixelFormatType_AGX_420YpCbCr8BiPlanarVideoRange
        https://bugs.webkit.org/show_bug.cgi?id=219030

        Reviewed by Antti Koivisto.

        Fix compile for simulator builds.
        Rename HAVE_CV_AGX_420_PIXEL_FORMAT_TYPES to
        HAVE_COREVIDEO_COMPRESSED_PIXEL_FORMAT_TYPES to better reflect what the ifdef does.

        * wtf/PlatformHave.h:

2020-11-17  Antoine Quint  <graouts@webkit.org>

        Make <model> disabled by default everywhere
        https://bugs.webkit.org/show_bug.cgi?id=219027

        Reviewed by Devin Rousso.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-11-16  Sam Weinig  <weinig@apple.com>

        Standardize enums that are used by Settings in preperation for autogeneration
        https://bugs.webkit.org/show_bug.cgi?id=218960

        Reviewed by Tim Horton.

        Update enum uses in default WebPreferences values for renames and scoped syntax use.

        * Scripts/Preferences/WebPreferences.yaml:

2020-11-16  Antoine Quint  <graouts@webkit.org>

        Add an experimental <model> element
        https://bugs.webkit.org/show_bug.cgi?id=218991

        Reviewed by Dean Jackson.

        Add a new build ENABLE(MODEL_ELEMENT) flag, enabled only on Cocoa platforms, and a new experimental feature
        backed by a setting, currently disabled on all platforms except engineering builds and Safari Technology Preview.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        * wtf/PlatformEnableCocoa.h:

2020-11-16  Per Arne Vollan  <pvollan@apple.com>

        [macOS] The WebContent sandbox does not apply for open source builds
        https://bugs.webkit.org/show_bug.cgi?id=218982

        Reviewed by Alexey Proskuryakov.

        Add HAVE define for sandbox message filtering.

        * wtf/PlatformHave.h:

2020-11-16  Megan Gardner  <megan_gardner@apple.com>

        Add menu support for app highlights for books
        https://bugs.webkit.org/show_bug.cgi?id=218879
        <rdar://problem/71352113>

        Reviewed by Alex Christensen.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

2020-11-16  Zan Dobersek  <zdobersek@igalia.com>

        Re-disable async overflow scrolling for USE(NICOSIA)
        https://bugs.webkit.org/show_bug.cgi?id=218974

        Async overflow scrolling was accidentally enabled for ports using the
        Nicosia platform layering infrastructure during the preference migration
        done in r267775. This patch again disables it until it can be properly
        supported.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

2020-11-14  Don Olmstead  <don.olmstead@sony.com>

        [clang-tidy] Run modernize-use-override through JSC
        https://bugs.webkit.org/show_bug.cgi?id=218916

        Reviewed by Yusuke Suzuki.

        * wtf/RunLoop.h:

2020-11-13  Sihui Liu  <sihui_liu@apple.com>

        Implement basic permission check for SpeechRecognition
        https://bugs.webkit.org/show_bug.cgi?id=218476
        <rdar://problem/71222638>

        Reviewed by Youenn Fablet.

        * wtf/PlatformHave.h:

2020-11-13  Sam Weinig  <weinig@apple.com>

        Move some more WebKit and WebKitLegacy preferences bound to Settings to WebPreferences.yaml
        https://bugs.webkit.org/show_bug.cgi?id=218914

        Reviewed by Tim Horton.

        Moves AppleMailPaginationQuirkEnabled, ContentDispositionAttachmentSandboxEnabled and
        UseImageDocumentForSubframePDF from Settings.yaml to WebPreferences.yaml. Merges in
        WebCore values from ScrollingPerformanceLoggingEnabled and removes binding override
        since it can now be fully generated. 

        * Scripts/Preferences/WebPreferences.yaml:

2020-11-13  Xan López  <xan@igalia.com>

        [JSC] Use symbols as identifiers for class fields computed names storage
        https://bugs.webkit.org/show_bug.cgi?id=216172

        Reviewed by Yusuke Suzuki.

        Use private symbols for the property keys of the class fields with
        computed names. This is cleaner than using raw numeric identifiers and
        will be less cumbersome when we add static fields. It also prevents
        potential collisions if other features want to store data in the class
        scope.

        * wtf/text/SymbolImpl.cpp:
        (WTF::RegisteredSymbolImpl::createPrivate): add a method to create a registered private symbol from a string key.
        * wtf/text/SymbolImpl.h:
        * wtf/text/SymbolRegistry.cpp:
        (WTF::SymbolRegistry::symbolForKey): consider that we can hold private symbols now too.
        * wtf/text/SymbolRegistry.h:
        (WTF::SymbolRegistry::SymbolRegistry): new enum type for public/private symbols.

2020-11-12  Darin Adler  <darin@apple.com>

        Remove unused advanced plug-in features: snapshotting and plug-in load policy
        https://bugs.webkit.org/show_bug.cgi?id=218835

        Reviewed by Tim Horton.

        * Scripts/Preferences/WebPreferences.yaml: Removed
        AutostartOriginPlugInSnapshottingEnabled, PlugInSnapshottingEnabled,
        PrimaryPlugInSnapshotDetectionEnabled, and SnapshotAllPlugIns.

2020-11-12  Simon Fraser  <simon.fraser@apple.com>

        Force wheel event listeners on the root to be passive
        https://bugs.webkit.org/show_bug.cgi?id=218842
        <rdar://problem/71312668>

        Reviewed by Chris Dumez.

        Following Blink (https://www.chromestatus.com/feature/6662647093133312) force 'wheel' and
        'mousewheel' event listeners on root objects (window, document and body) to be passive if
        they were not explicitly registered as non-passive.

        This behavior is controlled by an experimental feature flag, and a linked-on-or-after check
        to avoid changing behavior for apps that embed WebKit until they link against new SDKs.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-11-13  Aditya Keerthi  <akeerthi@apple.com>

        [iOS][FCR] Add an internal feature flag to enable the new appearance
        https://bugs.webkit.org/show_bug.cgi?id=218873
        <rdar://problem/71345270>

        Reviewed by Tim Horton.

        Enable the feature at build time on PLATFORM(IOS_FAMILY) and disable
        the feature at runtime.

        * Scripts/Preferences/WebPreferencesInternal.yaml:
        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:

2020-11-12  Youenn Fablet  <youenn@apple.com>

        Add infrastructure for WebRTC transforms
        https://bugs.webkit.org/show_bug.cgi?id=218750

        Reviewed by Eric Carlson.

        Add an experimental preference for WebRTC transforms.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-11-12  Sam Weinig  <weinig@apple.com>

        Move more WebKitLegacy specific settings usage to WebPreferences.yaml
        https://bugs.webkit.org/show_bug.cgi?id=218852

        Reviewed by Tim Horton.

        This batch focuses on settings with defaults based on SDK/host app conditions.

        * Scripts/Preferences/WebPreferences.yaml:

2020-11-12  Devin Rousso  <drousso@apple.com>

        Web Inspector: ensure that `JSON::ArrayOf<T>` doesn't allow `addItem` to be called with a type other than `T`
        https://bugs.webkit.org/show_bug.cgi?id=218686

        Reviewed by Brian Burg.

        * wtf/JSONValues.h:
        (WTF::JSONImpl::Value::Value):
        (WTF::JSONImpl::Value::Value):
        (WTF::JSONImpl::ArrayOf::addItem):
        * wtf/JSONValues.cpp:
        (WTF::JSONImpl::Value::create):
        Right now, `JSON::ArrayOf<T>` always has `addItem` overloads for `int`, `double`, `String`,
        and `Ref<T>` (even when `T` is not a `JSON::Value`). This means that a `JSON::ArrayOf<int>`
        can call `addItem(42.0)` or `addItem("foo"_s)` and it would work. This doesn't really match
        the intention of `JSON::ArrayOf<T>`, so add some template `std::enable_if` to ensure that
        the only `addItem` overload that exists is the one that matches `T`.

2020-11-12  Zalan Bujtas  <zalan@apple.com>

        Show legacy line layout visual coverage instead of "simple line" layout.
        https://bugs.webkit.org/show_bug.cgi?id=218695

        Reviewed by Antti Koivisto.

        * Scripts/Preferences/WebPreferencesDebug.yaml:

2020-11-11  Chris Dumez  <cdumez@apple.com>

        Add RunLoop::Timer constructor taking in a WTF::Function
        https://bugs.webkit.org/show_bug.cgi?id=218828

        Reviewed by Darin Adler.

        Add RunLoop::Timer constructor taking in a WTF::Function instead of a function pointer.
        This is similar to what was done for WebCore::Timer.

        * wtf/RunLoop.h:

2020-11-11  Sam Weinig  <weinig@apple.com>

        Move more WebKitLegacy preferences bound to Settings to WebPreferences.yaml
        https://bugs.webkit.org/show_bug.cgi?id=218826

        Reviewed by Tim Horton.

        * Scripts/Preferences/WebPreferences.yaml:
        Move AcceleratedCompositingForFixedPositionEnabled, ForceWebGLUsesLowPower, 
        RubberBandingForSubScrollableRegionsEnabled, ShrinksStandaloneImagesToFit and
        VisualViewportEnabled to WebPreferences.yaml

2020-11-11  John Wilander  <wilander@apple.com>

        PCM: Change from ad-click-attribution to private-click-measurement (in all forms, including .well-known URL)
        https://bugs.webkit.org/show_bug.cgi?id=218730
        <rdar://problem/71094296>

        Reviewed by Alex Christensen.

        Change to the official name of the proposed standard Private Click Measurement
        https://github.com/privacycg/private-click-measurement.

        This includes a change of the reporting URL from 
        "/.well-known/ad-click-attribution/" to
        "/.well-known/private-click-measurement/".

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-11-11  Wenson Hsieh  <wenson_hsieh@apple.com>

        Add system trace points for the GPU process display list processing loop
        https://bugs.webkit.org/show_bug.cgi?id=218824

        Reviewed by Simon Fraser.

        * wtf/SystemTracing.h:

2020-11-11  Alex Christensen  <achristensen@webkit.org>

        Define USE(LEGACY_CFNETWORK_DOWNLOADS)
        https://bugs.webkit.org/show_bug.cgi?id=218814

        Reviewed by Geoffrey Garen.

        * wtf/PlatformUse.h:

2020-11-11  Alex Christensen  <achristensen@webkit.org>

        Don't look in keychain for SecKeyRef after deserializing SecIdentityRef
        https://bugs.webkit.org/show_bug.cgi?id=218809
        <rdar://problem/69394018>

        Reviewed by Geoffrey Garen.

        * wtf/spi/cocoa/SecuritySPI.h:

2020-11-10  Yusuke Suzuki  <ysuzuki@apple.com>

        Unreviewed, reverting r269403
        https://bugs.webkit.org/show_bug.cgi?id=218143

        Now, bytecode list is moved out of JSCConfig. So it is not large size now.

        * wtf/WTFConfig.h:

2020-11-10  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r269660.
        https://bugs.webkit.org/show_bug.cgi?id=218786

        Crashing in EWS iOS simulator bots

        Reverted changeset:

        "PCM: Change from ad-click-attribution to private-click-
        measurement (in all forms, including .well-known URL)"
        https://bugs.webkit.org/show_bug.cgi?id=218730
        https://trac.webkit.org/changeset/269660

2020-11-10  John Wilander  <wilander@apple.com>

        PCM: Change from ad-click-attribution to private-click-measurement (in all forms, including .well-known URL)
        https://bugs.webkit.org/show_bug.cgi?id=218730
        <rdar://problem/71094296>

        Reviewed by Devin Rousso.

        Change to the official name of the proposed standard Private Click Measurement
        https://github.com/privacycg/private-click-measurement.

        This includes a change of the reporting URL from 
        "/.well-known/ad-click-attribution/" to
        "/.well-known/private-click-measurement/".

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-11-10  Jer Noble  <jer.noble@apple.com>

        Unreviewed internal macOS build-fix.

        * wtf/PlatformHave.h:

2020-11-10  Rob Buis  <rbuis@igalia.com>

        Parse aspect-ratio CSS property
        https://bugs.webkit.org/show_bug.cgi?id=218437

        Reviewed by Darin Adler.

        Add an experimental preference for aspect-ratio.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-11-09  Alan Bujtas  <zalan@apple.com>

        Unreviewed, reverting r269603.

        Needs Safari patch

        Reverted changeset:

        "Show legacy line layout visual coverage instead of "simple
        line" layout."
        https://bugs.webkit.org/show_bug.cgi?id=218695
        https://trac.webkit.org/changeset/269603

2020-11-09  Zalan Bujtas  <zalan@apple.com>

        Show legacy line layout visual coverage instead of "simple line" layout.
        https://bugs.webkit.org/show_bug.cgi?id=218695

        Reviewed by Antti Koivisto.

        * Scripts/Preferences/WebPreferencesDebug.yaml:

2020-11-09  Per Arne Vollan  <pvollan@apple.com>

        [macOS] Set preference for overridden languages in the WebContent process after entering the sandbox.
        https://bugs.webkit.org/show_bug.cgi?id=218097

        Reviewed by Alexey Proskuryakov.

        Disable CFPrefs direct mode for older versions of macOS. In practice, it was already disabled since a mach connection to cfprefsd
        was established before entering the sandbox on older versions on macOS, but that is fixed in this patch.

        * wtf/PlatformEnableCocoa.h:

2020-11-08  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Add TimeZone range cache over ICU TimeZone API
        https://bugs.webkit.org/show_bug.cgi?id=218681

        Reviewed by Ross Kirsling.

        * wtf/DateMath.h:

2020-11-08  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Support @@species in ArrayBuffer / SharedArrayBuffer slice
        https://bugs.webkit.org/show_bug.cgi?id=218697

        Reviewed by Ross Kirsling.

        Remove ENABLE(SHARED_ARRAY_BUFFER) flag. We use Options::useSharedArrayBuffer() runtime flag instead.

        * wtf/PlatformEnable.h:

2020-11-06  Sam Weinig  <weinig@apple.com>

        Further progress towards merging Settings.yaml into WebPreferences.yaml
        https://bugs.webkit.org/show_bug.cgi?id=218663

        Reviewed by Tim Horton.

        * Scripts/Preferences/WebPreferences.yaml:
        Replace some use of WebCore constants with the inlined values of those constants
        as this was the only user and it is clearer for the values to be here too.

2020-11-06  Yusuke Suzuki  <ysuzuki@apple.com>

        Re-enable SharedArrayBuffer for JSC shell and Testers
        https://bugs.webkit.org/show_bug.cgi?id=212069

        Reviewed by Keith Miller.

        * wtf/PlatformEnable.h:

2020-11-05  Saam Barati  <sbarati@apple.com>

        Add back swap() free function for RefPtr
        https://bugs.webkit.org/show_bug.cgi?id=218454

        Reviewed by Darin Adler.

        Add back the swap() free function I removed in r269115. Darin's suggestion
        of specializing only a single type of RefPtr instead of two, solved the
        issue. I also removed some previous hack where we didn't enable this for
        RawPtrTraits. It's now enabled for all PtrTraits.

        * wtf/RefPtr.h:
        (WTF::swap):

2020-11-05  Saam Barati  <sbarati@apple.com>

        Change RELEASE_ASSERT to use branch+crash inside HashTable.h
        https://bugs.webkit.org/show_bug.cgi?id=218624
        <rdar://problem/70901101>

        Reviewed by Mark Lam.

        The assertions added in r269017 used RELEASE_ASSERT. RELEASE_ASSERT
        is implemented as invoking WTFCrashWithInfo, which does a bunch of register
        argument/moves. Doing this in inlined hash table code bloats WK binaries
        by a lot. This patch changes it so we just branch+crash on the same condition.

        * wtf/HashTable.h:
        (WTF::KeyTraits>::inlineLookup):
        (WTF::KeyTraits>::lookupForWriting):
        (WTF::KeyTraits>::fullLookupForWriting):
        (WTF::KeyTraits>::addUniqueForInitialization):
        (WTF::KeyTraits>::add):

2020-11-05  Youenn Fablet  <youenn@apple.com>

        Consider blocking ports 5060 and 5061
        https://bugs.webkit.org/show_bug.cgi?id=218557
        <rdar://problem/71031479>

        Reviewed by Alex Christensen.

        * wtf/URL.cpp:
        (WTF::portAllowed):

2020-11-04  Said Abou-Hallawa  <said@apple.com>

        [GPU Process] Move the internal GPU rendering flags from WebPage to WebProcess
        https://bugs.webkit.org/show_bug.cgi?id=218549

        Reviewed by Tim Horton.

        Fix a layering issue for the preference 'UseGPUProcessForMediaEnabled'.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

2020-11-04  Yusuke Suzuki  <ysuzuki@apple.com>

        Unreviewed, add workaround for Linux build
        https://bugs.webkit.org/show_bug.cgi?id=218143

        * wtf/WTFConfig.h:

2020-11-04  Michael Catanzaro  <mcatanzaro@gnome.org>

        Add new build option USE(64KB_PAGE_BLOCK)
        https://bugs.webkit.org/show_bug.cgi?id=217989

        Reviewed by Yusuke Suzuki.

        * wtf/PageBlock.h:

2020-11-04  Aditya Keerthi  <akeerthi@apple.com>

        [Contact Picker API] Add support for picker UI on iOS
        https://bugs.webkit.org/show_bug.cgi?id=218189
        <rdar://problem/69862277>

        Reviewed by Devin Rousso.

        * wtf/PlatformHave.h:

        Added HAVE(CONTACTSUI) and HAVE(CNCONTACTPICKERVIEWCONTROLLER) macros.

2020-11-04  David Kilzer  <ddkilzer@apple.com>

        WebKit should remove unused debug variant support
        <https://webkit.org/b/218315>
        <rdar://problem/70785369>

        Reviewed by Darin Adler.

        Remove support for building the debug variant since it is
        currently unused. We now set default values for the
        DEAD_CODE_STRIPPING, DEBUG_DEFINES, GCC_OPTIMIZATION_LEVEL and
        STRIP_INSTALLED_PRODUCT variables.

        Also move these values out of the Xcode project into
        Base.xcconfig files using the [config=Debug] specifier so that
        these overrides are next to the definitions.

        * Configurations/Base.xcconfig:
        * WTF.xcodeproj/project.pbxproj:

2020-11-03  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Add JITCage support
        https://bugs.webkit.org/show_bug.cgi?id=218143

        Reviewed by Saam Barati.

        * wtf/OSAllocator.h:
        (WTF::OSAllocator::reserveAndCommit):
        (WTF::OSAllocator::reallocateCommitted):
        * wtf/PageReservation.h:
        (WTF::PageReservation::reserve):
        (WTF::PageReservation::reserveWithGuardPages):
        (WTF::PageReservation::reserveAndCommitWithGuardPages):
        (WTF::PageReservation::PageReservation):
        * wtf/PlatformEnable.h:
        * wtf/PlatformUse.h:
        * wtf/PtrTag.h:
        (WTF::assertIsTaggedWith):
        (WTF::tagCodePtrWithStackPointerForJITCall): Deleted.
        (WTF::untagCodePtrWithStackPointerForJITCall): Deleted.
        * wtf/posix/OSAllocatorPOSIX.cpp:
        (WTF::OSAllocator::reserveUncommitted):
        (WTF::OSAllocator::reserveAndCommit):
        * wtf/win/OSAllocatorWin.cpp:
        (WTF::OSAllocator::reserveUncommitted):
        (WTF::OSAllocator::reserveAndCommit):

2020-11-03  Wenson Hsieh  <wenson_hsieh@apple.com>

        Adjust some compile-time guards in GraphicsContextCG.cpp
        https://bugs.webkit.org/show_bug.cgi?id=218534

        Reviewed by Tim Horton.

        Add `HAVE(CG_CONTEXT_DRAW_PATH_DIRECT)`.

        * wtf/PlatformHave.h:

2020-11-03  Stephan Szabo  <stephan.szabo@sony.com>

        [WinCairo/PlayStation] ICU 68.1 no longer exposes FALSE and TRUE macros by default
        https://bugs.webkit.org/show_bug.cgi?id=218522

        Reviewed by Don Olmstead.

        Replace uses of FALSE and TRUE with false and true.

        * wtf/text/icu/UTextProvider.h:
        * wtf/text/icu/UTextProviderLatin1.cpp:
        * wtf/text/icu/UTextProviderUTF16.cpp:

2020-10-30  Tim Horton  <timothy_horton@apple.com>

        REGRESSION (r267689): Rise of the Tomb Raider gets stuck while launching
        https://bugs.webkit.org/show_bug.cgi?id=218411
        <rdar://problem/70622557>

        Reviewed by Zalan Bujtas.

        * Scripts/Preferences/WebPreferences.yaml:
        Sam accidentally changed the default of RequiresUserGestureForMediaPlayback
        in r267689; previously it was @YES only in PLATFORM(IOS_FAMILY), he made
        it true globally.

        Go back to the old, and intended, behavior.

2020-10-30  Chris Fleizach  <cfleizach@apple.com>

        AX: Incorrect list of voices being displayed on iOS
        https://bugs.webkit.org/show_bug.cgi?id=218293

        Reviewed by Per Arne Vollan.

        * wtf/PlatformHave.h:

2020-10-29  Jiewen Tan  <jiewen_tan@apple.com>

        [WebAuthn] Make WebContent process talk to the WebAuthn process for WebAuthn requests
        https://bugs.webkit.org/show_bug.cgi?id=218070
        <rdar://problem/70384404>

        Reviewed by Brent Fulgham.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        Adds bindings in WebCore.

2020-10-28  Saam Barati  <sbarati@apple.com>

        Better cache our serialization of the outer TDZ environment when creating FunctionExecutables during bytecode generation
        https://bugs.webkit.org/show_bug.cgi?id=199866
        <rdar://problem/53333108>

        Reviewed by Tadeu Zagallo.

        * wtf/RefPtr.h:
        (WTF::swap): Deleted.
        This function is no longer necessary, and causes ADL (https://en.cppreference.com/w/cpp/language/adl)
        compile errors when not using DumbPtrTraits and calling sort on a vector of that type.

2020-10-28  Sam Weinig  <weinig@apple.com>

        Reduce Preference Override Methods: TabsToLinks/SpatialNavigation
        https://bugs.webkit.org/show_bug.cgi?id=218288

        Reviewed by Tim Horton.

        * Scripts/Preferences/WebPreferences.yaml:
        Unify TabToLinksEnabled and TabsToLinks. TabToLinksEnabled was added for https://bugs.webkit.org/show_bug.cgi?id=95329
        and has never actually been needed.

2020-10-27  Tim Horton  <timothy_horton@apple.com>

        Adopt the UIPointerInteraction API
        https://bugs.webkit.org/show_bug.cgi?id=218266
        <rdar://problem/70732850>

        Reviewed by Wenson Hsieh.

        * wtf/PlatformHave.h:

2020-10-27  Brian Burg  <bburg@apple.com>

        Web Inspector: add ENABLE(INSPECTOR_EXTENSIONS) to feature defines
        https://bugs.webkit.org/show_bug.cgi?id=218237
        <rdar://problem/69968787>

        Reviewed by Antti Koivisto.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:
        Add ENABLE(INSPECTOR_EXTENSIONS), which is only on for the Cocoa macOS port.

2020-10-15  Tadeu Zagallo  <tzagallo@apple.com>

        Sign MacroAssembler::jumpsToLink
        https://bugs.webkit.org/show_bug.cgi?id=217774
        <rdar://problem/69433058>

        Reviewed by Saam Barati.

        * wtf/PtrTag.h:
        (WTF::untagInt):
        (WTF::tagInt):

2020-10-15  Tadeu Zagallo  <tzagallo@apple.com>

        Add extra validation to MetaAllocator::findAndRemoveFreeSpace
        https://bugs.webkit.org/show_bug.cgi?id=217792
        <rdar://problem/69433015>

        Reviewed Saam Barati.

        * wtf/MetaAllocator.cpp:
        (WTF::MetaAllocator::findAndRemoveFreeSpace):

2020-10-13  Tadeu Zagallo  <tzagallo@apple.com>

        Assert that WTF::HashTable does not visit the same bucket twice
        https://bugs.webkit.org/show_bug.cgi?id=217691
        <rdar://problem/69887843>

        Reviewed by Saam Barati.

        * wtf/HashTable.h:
        (WTF::KeyTraits>::inlineLookup):
        (WTF::KeyTraits>::lookupForWriting):
        (WTF::KeyTraits>::fullLookupForWriting):
        (WTF::KeyTraits>::addUniqueForInitialization):
        (WTF::KeyTraits>::add):

2020-10-26  Alex Christensen  <achristensen@webkit.org>

        Inclusive software: Remove instances of "dumb" from the code
        https://bugs.webkit.org/show_bug.cgi?id=217778

        Reviewed by Simon Fraser.

        * WTF.xcodeproj/project.pbxproj:
        * icu/unicode/caniter.h:
        * wtf/Bag.h:
        * wtf/CMakeLists.txt:
        * wtf/CagedPtr.h:
        * wtf/Forward.h:
        * wtf/NakedRef.h:
        * wtf/RawPtrTraits.h: Renamed from Source/WTF/wtf/DumbPtrTraits.h.
        * wtf/RawValueTraits.h: Renamed from Source/WTF/wtf/DumbValueTraits.h.
        * wtf/Ref.h:
        * wtf/RefCountedArray.h:
        * wtf/RefPtr.h:
        * wtf/SentinelLinkedList.h:

2020-10-26  Youenn Fablet  <youenn@apple.com>

        Use a WeakHashSet for Document::m_captionPreferencesChangedElements
        https://bugs.webkit.org/show_bug.cgi?id=218170

        Reviewed by Eric Carlson.

        * wtf/WeakHashSet.h:
        Add a static cast for classes inheriting CanMakeWeakPtr like done for the set iterator.
        Update code to compile in WinCairo.

2020-10-26  Zan Dobersek  <zdobersek@igalia.com>

        Remove Accelerated2dCanvasEnabled WebPreferences entry
        https://bugs.webkit.org/show_bug.cgi?id=218114

        Reviewed by Adrian Perez de Castro.

        * Scripts/Preferences/WebPreferences.yaml:
        Remove the Accelerated2dCanvasEnabled key after the underlying code
        was removed in r268453.

2020-10-21  Alex Christensen  <achristensen@webkit.org>

        Update and pass new URL web platform tests
        https://bugs.webkit.org/show_bug.cgi?id=218056

        Reviewed by Tim Horton.

        * wtf/URL.cpp:
        (WTF::URL::setPath):

2020-10-20  Sihui Liu  <sihui_liu@apple.com>

        Add stubs for SpeechRecognition
        https://bugs.webkit.org/show_bug.cgi?id=217780
        <rdar://problem/70350727>

        Unreviewed build fix after r268762, which sets ENABLE_SPEECH_SYNTHESIS by mistake.

        * wtf/PlatformEnable.h:

2020-10-20  Sihui Liu  <sihui_liu@apple.com>

        Add stubs for SpeechRecognition
        https://bugs.webkit.org/show_bug.cgi?id=217780
        <rdar://problem/70350727>

        Reviewed by Youenn Fablet.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        * wtf/PlatformEnable.h:

2020-10-15  Jer Noble  <jer.noble@apple.com>

        Add skeleton implementation of Media Session API
        https://bugs.webkit.org/show_bug.cgi?id=217797

        Reviewed by Darin Adler.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:

2020-10-20  Sam Weinig  <weinig@apple.com>

        Tweak WebPreferences*.yaml "exposed" key to only indicate that the key should not be changeable by the frontend
        https://bugs.webkit.org/show_bug.cgi?id=217918

        Reviewed by Darin Adler.

        * Scripts/GeneratePreferences.rb:
        Tweak how the "exposed" key is interpreted to extend to keys with default values
        for the current frontend (that should continue to be set on Settings for instance)
        but that should not respect the key being passed in. For instance, the key 
        "AsyncFrameScrollingEnabled" has default values for all front ends, since we need
        to set it to false in Settings when building WebKitLegacy, but is only exposed to
        WebKit, so it won't be in WebKitLegacy's -[WebPreferences internalFeatures] array
        and won't do anything if passed to -[WebPreferences _setBoolPreferenceForTestingWithValue:forKey:].

        * Scripts/Preferences/WebPreferences.yaml:
        Replace now incorrect uses of exposed with temporary key "webKitLegacyBinding" to indicate
        that these keys should be valid, but currently use a custom binding in WebKitLegacy.

        * Scripts/Preferences/WebPreferencesInternal.yaml:
        Only expose AsyncFrameScrollingEnabled and AsyncOverflowScrollingEnabled to WebKit.
        This maintains the behavior that these keys are not valid keys as test header commands
        when run through DumpRenderTree.
        

2020-10-19  Lauro Moura  <lmoura@igalia.com>

        REGRESSION(r268115) [GTK] Build failures with GCC 7 (Ubuntu 18.04) and GCC 8 (Debian Buster)
        https://bugs.webkit.org/show_bug.cgi?id=217425

        Reviewed by Carlos Alberto Lopez Perez.

        * wtf/StdFilesystem.h: Add fallback to <experimental/filesystem> if available.

2020-10-19  Chris Dumez  <cdumez@apple.com>

        [GPU Process] RemoteAudioDestination::render() should not need to dispatch to the main thread to do IPC
        https://bugs.webkit.org/show_bug.cgi?id=217920

        Reviewed by Alex Christensen.

        Add an optional parameter to the CompletionHandler constructor allowing the caller to indicate it expects
        the completion handler to get call on the main thread instead of the construction thread.

        * wtf/CompletionHandler.h:
        (WTF::CompletionHandler<Out):

2020-10-19  Antoine Quint  <graouts@webkit.org>

        Move remaining Web Animations runtime-enabled features to settings
        https://bugs.webkit.org/show_bug.cgi?id=217903

        Reviewed by Sam Weinig.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-10-18  David Kilzer  <ddkilzer@apple.com>

        Fix -Wdeprecated-copy warnings in WTF and JavaScriptCore
        <https://webkit.org/b/217855>
        <rdar://problem/67716914>

        Reviewed by Darin Adler.

        * wtf/Identified.h:
        (WTF::IdentifiedBase::Identifier):
        - Change to default since compiler will generate the same code.
        (WTF::IdentifiedBase::operator=): Add.
        - Add default copy assignment operator to keep it protected.

2020-10-16  Wenson Hsieh  <wenson_hsieh@apple.com>

        Add system trace points for flushing remote image buffers
        https://bugs.webkit.org/show_bug.cgi?id=217853

        Reviewed by Simon Fraser.

        See WebKit ChangeLog for more details.

        * wtf/SystemTracing.h:

2020-10-16  Jiewen Tan  <jiewen_tan@apple.com>

        [WebAuthn] Add an experimental feature flag: WebAuthenticationModernEnabled
        https://bugs.webkit.org/show_bug.cgi?id=217843
        <rdar://problem/70384187>

        Reviewed by Brent Fulgham.

        Add a new experimental feature flag to test the new WebAuthn process.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-10-16  Antoine Quint  <graouts@webkit.org>

        Enable individual CSS transform properties by default
        https://bugs.webkit.org/show_bug.cgi?id=217849
        <rdar://problem/70052493>

        Reviewed by Dean Jackson.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-10-16  Jiewen Tan  <jiewen_tan@apple.com>

        [WebAuthn] Remove experimental feature flag: WebAuthenticationLocalAuthenticatorEnabled
        https://bugs.webkit.org/show_bug.cgi?id=217796
        <rdar://problem/70358912>

        Reviewed by Brent Fulgham.

        The feature is now shipped. Let's remove the experimental feature flag.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-10-16  David Kilzer  <ddkilzer@apple.com>

        Open source clang warning: bitwise operation between different enumeration types [-Wenum-enum-conversion]
        <https://webkit.org/b/217805>
        <rdar://problem/70250742>

        Reviewed by Darin Adler.

        * wtf/text/StringImpl.h:
        (WTF::StringImpl::StringImpl::s_hashZeroValue): Add.
        (WTF::StringImpl::StringImpl):
        - Use s_hashZeroValue as first value in bitwise-or expression
          so that enums are converted automatically to unsigned values.

2020-10-16  Sam Weinig  <weinig@apple.com>

        ENABLE_LEGACY_CSS_VENDOR_PREFIXES and RuntimeEnabledFeatures::legacyCSSVendorPrefixesEnabled() don't do anything
        https://bugs.webkit.org/show_bug.cgi?id=217833

        Reviewed by Simon Fraser.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:
        Remove support for ENABLE_LEGACY_CSS_VENDOR_PREFIXES, which only guarded code that was always disabled.

2020-10-16  Michael Catanzaro  <mcatanzaro@gnome.org>

        REGRESSION(r267727): Warning spam from JSC_DECLARE_CUSTOM_GETTER
        https://bugs.webkit.org/show_bug.cgi?id=217585

        Reviewed by Yusuke Suzuki.

        The problem is that the declarations are static, so WTF_INTERNAL is redundant with that.
        (File-static declarations are of course local to the current file, and apparently GCC really
        wants us to not hide symbols that don't need to be hidden.)

        I considered remove WTF_INTERNAL from JSC_DECLARE_JIT_OPERATION and ensuring all uses are
        static, but it's not possible because it is frequently used in header files. It should only
        be static when used in .cpp files.

        So I decided to split JSC_DECLARE_JIT_OPERATION into two versions, the current one that uses
        WTF_INTERNAL, and JSC_DECLARE_JIT_OPERATION_WITHOUT_WTF_INTERNAL that doesn't. That is not a
        great name, but it's only used in a couple places, so I guess that's OK.
        JSC_DECLARE_CUSTOM_GETTER and JSC_DECLARE_CUSTOM_SETTER use this new version, since those
        are only used in static declarations in .cpp files. A small number of source files also need
        the version without the WTF_INTERNAL. All other users can continue to use original
        JSC_DECLARE_JIT_OPERATION with WTF_INTERNAL and not worry about the ugly name.

        I'm not terribly happy with this solution, and it's a little fragile too (you probably won't
        directly use JSC_DECLARE_JIT_OPERATION_WITHOUT_WTF_INTERNAL in a place that needs
        WTF_INTERNAL, but you might use JSC_DECLARE_CUSTOM_GETTER and JSC_DECLARE_CUSTOM_SETTER in
        such a way!), but at least it will avoid the warning spam and allow us to see warnings for
        real problems.

        * wtf/PlatformCallingConventions.h:

2020-10-15  Jiewen Tan  <jiewen_tan@apple.com>

        [WebAuthn] Move AppAttestInternal related code from WKA to OpenSource
        https://bugs.webkit.org/show_bug.cgi?id=217790
        <rdar://problem/59613406>

        Reviewed by Brent Fulgham.

        * wtf/PlatformHave.h:

2020-10-15  David Kilzer  <ddkilzer@apple.com>

        WeakObjCPtr.h is not safe to include in C++ source files
        <https://webkit.org/b/217712>
        <rdar://problem/70250667>

        Reviewed by Darin Adler.

        * wtf/WeakObjCPtr.h:
        (WTF::WeakObjCPtr::get const):
        - Move implementation outside of the class and wrap it in
          #ifdef __OBJC__/#endif.  This makes the header safe to compile
          with other C++ sources, but will fail if get() is used in a
          C++ source file.

2020-10-14  Ryosuke Niwa  <rniwa@webkit.org>

        Unreviewed build fix. Disable IPC testing API on non-Cocoa platforms.

        * wtf/PlatformEnable.h:

2020-10-14  Alex Christensen  <achristensen@webkit.org>

        Disallow ports in file URLs
        https://bugs.webkit.org/show_bug.cgi?id=217252

        Reviewed by Darin Adler.

        This matches Chrome and the URL specification.
        Covered by newly passing web platform tests.

        * wtf/URLParser.cpp:
        (WTF::URLParser::parsePort):

2020-10-13  Simon Fraser  <simon.fraser@apple.com>

        Allow passive mouse wheel event listeners to not force synchronous scrolling
        https://bugs.webkit.org/show_bug.cgi?id=158439
        <rdar://problem/28265360>

        Reviewed by Tim Horton.

        Define ENABLE_WHEEL_EVENT_REGIONS for macOS.

        * wtf/PlatformEnableCocoa.h:

2020-10-14  Chris Dumez  <cdumez@apple.com>

        Enable AudioWorklet by default
        https://bugs.webkit.org/show_bug.cgi?id=217708

        Reviewed by Eric Carlson.

        Enable AudioWorklet by default on platforms where modern/unprefixed WebAudio
        is enabled.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

2020-10-14  Zan Dobersek  <zdobersek@igalia.com>

        Remove ACCELERATED_2D_CANVAS build flags and guarded code
        https://bugs.webkit.org/show_bug.cgi?id=217603

        Reviewed by Carlos Garcia Campos.

        * wtf/PlatformEnable.h:
        Remove the fallback ENABLE_ACCELERATED_2D_CANVAS definition.

2020-10-13  Chris Dumez  <cdumez@apple.com>

        WebAudio tests are crashing in debug when enabling the GPU process
        https://bugs.webkit.org/show_bug.cgi?id=217663

        Reviewed by Geoff Garen.

        * wtf/CrossThreadQueue.h:
        (WTF::CrossThreadQueue<DataType>::waitForMessage):
        If CrossThreadQueue::kill() gets called while another thread is waiting on a
        CrossThreadQueue::waitForMessage() call, make it so that waitForMessage()
        returns a default-constructed DataType instead of crashing trying to
        dequeue (since the queue is empty).

2020-10-13  Keith Rollin  <krollin@apple.com>

        Remove leftover MACOSX_DEPLOYMENT_TARGET_macosx support
        https://bugs.webkit.org/show_bug.cgi?id=217649
        <rdar://problem/70236877>

        Reviewed by Darin Adler.

        Bug 42796 introduced MACOSX_DEPLOYMENT_TARGET_<PLATFORM> as "support
        for compiling WebKit against iOS SDKs". Support for the iOS part of
        this feature was later removed in several changes, including Bug
        139212, Bug 139463 and Bug 144762. However, vestiges have remained for
        five or six years in the form of MACOSX_DEPLOYMENT_TARGET_macosx. The
        inclusion of the platform in MACOSX_DEPLOYMENT_TARGET is no longer
        needed and can be removed.

        This changes brings most projects in conformance with other projects
        that don't support including the platform in MACOSX_DEPLOYMENT_TARGET,
        including WebEditingTester, gtest, WebKitTestRunner, MiniBrowser, and
        TestWebKitAPI.

        Along the way, remove a couple of left-over references to macOS 10.16,
        and a couple of places where [sdk=macosx*] was still being used.

        With this change, initialization of MACOSX_DEPLOYMENT_TARGET should be
        consistent across all projects, with two exceptions: WebKitLauncher
        (which hardcodes it to 10.12) and libwebrtc's copy of googletest
        (which hardcodes it to 10.4). The reasons for these hard-coded values
        is not apparent, so leave them be.

        * Configurations/DebugRelease.xcconfig:

2020-10-12  Luming Yin  <luming_yin@apple.com>

        [macOS] Workaround for MAC_OS_X_VERSION_MAJOR incorrectly including minor version when building 
        with Xcode 12 on macOS Big Sur SUs
        https://bugs.webkit.org/show_bug.cgi?id=217602
        rdar://70194453

        Reviewed by Darin Adler.

        The previous workaround turns out to be ineffective because we can't set the value of 
        TARGET_MAC_OS_X_VERSION_MAJOR based on a previous value of itself. Introduce a new 
        variable TARGET_MAC_OS_X_VERSION_MAJOR to determine whether we need to explicitly 
        adjust MAC_OS_X_VERSION_MAJOR to 110000.

        * Configurations/DebugRelease.xcconfig:

2020-10-12  Andy Estes  <aestes@apple.com>

        [macCatalyst] Enable WKPDFView
        https://bugs.webkit.org/show_bug.cgi?id=217403
        <rdar://problem/48217791>

        Reviewed by Tim Horton.

        * wtf/PlatformEnableCocoa.h: Enabled WKPDFView when building for the Catalyst variant on
        Big Sur or later.

2020-10-12  Michael Catanzaro  <mcatanzaro@gnome.org>

        -Wsign-compare warnings in URL.cpp and URLParser.cpp
        https://bugs.webkit.org/show_bug.cgi?id=217583

        Using unsigned literals where required.

        Reviewed by Darin Adler.

        * wtf/URL.cpp:
        (WTF::URL::pathStart const):
        * wtf/URLParser.cpp:
        (WTF::URLParser::needsNonSpecialDotSlash const):

2020-10-12  Luming Yin  <luming_yin@apple.com>

        [macOS] Workaround for MAC_OS_X_VERSION_MAJOR incorrectly including minor version when building 
        with Xcode 12 on macOS Big Sur SUs
        https://bugs.webkit.org/show_bug.cgi?id=217602
        rdar://70194453

        Reviewed by Darin Adler.

        Due to a bug in Xcode (rdar://70185899), Xcode 12.0 and Xcode 12.1 Beta incorrectly includes the 
        minor release number in MAC_OS_X_VERSION_MAJOR, which causes Debug and Release builds of WebKit 
        to be misconfigured when building on macOS Big Sur SUs, leading to webpages failing to load.

        To work around the Xcode bug, when the MAC_OS_X_VERSION_MAJOR includes the minor version number, 
        drop the minor version number by explicitly setting TARGET_MAC_OS_X_VERSION_MAJOR to 110000.

        Note: This change should be reverted after <rdar://70185899> is resolved.

        * Configurations/DebugRelease.xcconfig:

2020-10-11  Michael Catanzaro  <mcatanzaro@gnome.org>

        GeneratePreferences.rb is noisy
        https://bugs.webkit.org/show_bug.cgi?id=217589

        Reviewed by Sam Weinig.

        Don't print anything when the script is successful. Since it runs during the build, it
        should only print errors.

        * Scripts/GeneratePreferences.rb:

2020-10-11  Luming Yin  <luming_yin@apple.com>

        Strip patch version from TARGET_MAC_OS_X_VERSION_MAJOR when building for macOS Big Sur 
        or later
        https://bugs.webkit.org/show_bug.cgi?id=217594
        rdar://70188497

        Reviewed by Darin Adler.

        To ensure successful Mac Catalyst WebKit builds, strip the patch version from 
        TARGET_MAC_OS_X_VERSION_MAJOR by using two `base:`s on MACOSX_DEPLOYMENT_TARGET.

        * Configurations/Base.xcconfig:

2020-10-11  Luming Yin  <luming_yin@apple.com>

        Ignore deployment suffix and identifier when computing major OS version for macOS 
        Big Sur and newer
        https://bugs.webkit.org/show_bug.cgi?id=217584
        rdar://70168426

        Reviewed by Darin Adler.

        Stop using MACOSX_DEPLOYMENT_TARGET:suffix:identifier to compute major OS versions. 
        Only use the deployment target base for macOS Big Sur and newer. Keep the manual 
        definitions for legacy versions of macOS.

        * Configurations/Base.xcconfig:

2020-10-09  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Assert Operation and HostFunction are in JITOperationsList
        https://bugs.webkit.org/show_bug.cgi?id=217500

        Reviewed by Saam Barati.

        This patch makes tagCodePtr etc. take PtrTag only from template parameter.
        As a result, we can easily customize special verification process for specific PtrTag.
        By leveraging this feature, we introduce HostFunction / JITOperation assertions for HostFunctionPtrTag and OperationPtrTag.

        We also add tagCodePtrWithStackPointerForJITCall and untagCodePtrWithStackPointerForJITCall, they are used only when we need
        to tag a pointer with stack pointer which is a dynamic PtrTag.

        * wtf/PtrTag.cpp:
        (WTF::tagForPtr):
        * wtf/PtrTag.h:
        (WTF::tagNativeCodePtrImpl):
        (WTF::untagNativeCodePtrImpl):
        (WTF::PtrTagTraits::tagCodePtr):
        (WTF::PtrTagTraits::untagCodePtr):
        (WTF::registerPtrTagLookup):
        (WTF::reportBadTag):
        (WTF::removeCodePtrTag):
        (WTF::tagCodePtrImpl):
        (WTF::tagCodePtr):
        (WTF::untagCodePtrImpl):
        (WTF::untagCodePtr):
        (WTF::retagCodePtrImplHelper):
        (WTF::retagCodePtrImpl):
        (WTF::retagCodePtr):
        (WTF::assertIsCFunctionPtr):
        (WTF::isTaggedWith):
        (WTF::tagCFunctionPtrImpl):
        (WTF::tagCFunctionPtr):
        (WTF::tagCFunction):
        (WTF::untagCFunctionPtrImpl):
        (WTF::untagCFunctionPtr):
        (WTF::tagArrayPtr):
        (WTF::untagArrayPtr):
        (WTF::removeArrayPtrTag):
        (WTF::retagArrayPtr):
        (WTF::tagCodePtrWithStackPointerForJITCall):
        (WTF::untagCodePtrWithStackPointerForJITCall):
        (WTF::untagCodePtrImplHelper): Deleted.

2020-10-10  Sam Weinig  <weinig@apple.com>

        Use WebPreference definitions from shared configuration files in WebCore (Part 1)
        https://bugs.webkit.org/show_bug.cgi?id=217551

        Reviewed by Darin Adler.

        This begins using the WebPreferences*.yaml files for the generation of 
        WebCore's Settings and InternalSettings classes. In this first part, we 
        only are moving settings that already exist in the WebPreferences*.yaml 
        files. A subsequent change will migrate the remaining additional settings
        over.

        To do this we must add default values for 'WebCore', which are unfortunately
        still needed for things like the empty client based SVGImage and sanitizing 
        web content functionality. We only need default WebCore values for preferences 
        that are bound to WebCore::Settings. It would be good to eliminate the need
        for these eventually, but that is not a goal of this change.

        This also adds some new keys from WebCore's Settings.yaml:
        - 'webcoreOnChange: *' called by WebCore::Settings when the setting changes.
        - 'inspectorOverride: true' used to allow the inspector to override the setting.
        - 'webcoreImplementation: custom' used to indicate that WebCore::SettingsBase 
          implements the setting.
        - 'webcoreGetter: *' used to provide an alternate name for the getter in WebCore::Settings.
        - 'webcoreExcludeFromInternalSettings: true' used to exclude from WebCore's InternalSettings
          bindings.

        * Scripts/GeneratePreferences.rb:
        Adds check that if the preference is bound to WebCore, it includes defaults for all
        three front generators, 'WebKit', WebKitLegacy', and 'WebCore'.

        * Scripts/Preferences/WebPreferences.yaml:
        * Scripts/Preferences/WebPreferencesDebug.yaml:
        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        * Scripts/Preferences/WebPreferencesInternal.yaml:
        Migrates defaults and additional keys from Settings.yaml.

2020-10-09  Keith Miller  <keith_miller@apple.com>

        Finalizers shouldn't run if events can't fire
        https://bugs.webkit.org/show_bug.cgi?id=214508

        Reviewed by Ryosuke Niwa.

        Add a DropLockScope to make it easier to drop a lock for a short
        piece of code.  Also, instead of deleting int Locker constructor
        we should just delete the underlying type of the
        NoLockingNecessary enum.

        * wtf/Locker.h:
        (WTF::Locker::~Locker):
        (WTF::Locker::unlockEarly):
        (WTF::Locker::Locker):
        (WTF::Locker::operator=):
        (WTF::Locker::unlock):
        (WTF::DropLockForScope::DropLockForScope):
        (WTF::DropLockForScope::~DropLockForScope):

2020-10-08  Yusuke Suzuki  <ysuzuki@apple.com>

        Unreviewed, reland r268170
        https://bugs.webkit.org/show_bug.cgi?id=217460

        * wtf/PlatformRegisters.cpp:
        (WTF::threadStateLRInternal):
        (WTF::threadStatePCInternal):
        * wtf/PtrTag.h:
        (WTF::tagCodePtr):
        (WTF::untagCodePtr):
        (WTF::assertIsCFunctionPtr):
        (WTF::assertIsNullOrCFunctionPtr):
        (WTF::assertIsNotTagged):
        (WTF::assertIsTagged):
        (WTF::assertIsNullOrTagged):
        (WTF::isTaggedWith):
        (WTF::assertIsTaggedWith):
        (WTF::assertIsNullOrTaggedWith):
        (WTF::tagCFunctionPtr):
        (WTF::tagCFunction):
        (WTF::untagCFunctionPtr):
        (WTF::tagInt):

2020-10-08  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r268170 and r268190.
        https://bugs.webkit.org/show_bug.cgi?id=217502

        Crash on ARM64E exclusively

        Reverted changesets:

        "[JSC] Restrict more ptr-tagging and avoid using
        OperationPtrTag for JIT code"
        https://bugs.webkit.org/show_bug.cgi?id=217460
        https://trac.webkit.org/changeset/268170

        "Unreviewed, build fix for ARM64E"
        https://bugs.webkit.org/show_bug.cgi?id=217460
        https://trac.webkit.org/changeset/268190

2020-10-08  Ryosuke Niwa  <rniwa@webkit.org>

        Make it possible to send an arbitrary IPC message from JavaScript
        https://bugs.webkit.org/show_bug.cgi?id=217423
        <rdar://problem/69969351>

        Reviewed by Geoffrey Garen.

        Added a compile time flag (ENABLE_IPC_TESTING_API) and a runtime flag (IPCTestingAPIEnabled)
        for the JavaScript API to test IPC.

        * Scripts/GeneratePreferences.rb:
        (Preference::nameLower): Keep IPC uppercase.
        * Scripts/Preferences/WebPreferencesInternal.yaml: Added IPCTestingAPIEnabled.
        * wtf/PlatformEnable.h: Added ENABLE_IPC_TESTING_API.

2020-10-08  Alex Christensen  <achristensen@webkit.org>

        REGRESSION (r267763): [ iOS wk2 ] http/tests/in-app-browser-privacy/non-app-bound-domain-does-not-get-app-bound-session.html is a constant failure
        https://bugs.webkit.org/show_bug.cgi?id=217386

        Reviewed by Brent Fulgham.

        * Scripts/Preferences/WebPreferencesDebug.yaml:

2020-10-08  Yusuke Suzuki  <ysuzuki@apple.com>

        Unreviewed, build fix for ARM64E
        https://bugs.webkit.org/show_bug.cgi?id=217460

        * wtf/PtrTag.h:
        (WTF::tagCodePtr):
        (WTF::untagCodePtr):
        (WTF::assertIsCFunctionPtr):
        (WTF::assertIsNullOrCFunctionPtr):
        (WTF::assertIsNotTagged):
        (WTF::assertIsTagged):
        (WTF::assertIsNullOrTagged):
        (WTF::isTaggedWith):
        (WTF::assertIsTaggedWith):
        (WTF::assertIsNullOrTaggedWith):

2020-10-07  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Restrict more ptr-tagging and avoid using OperationPtrTag for JIT code
        https://bugs.webkit.org/show_bug.cgi?id=217460

        Reviewed by Saam Barati.

        * wtf/PlatformRegisters.cpp:
        (WTF::threadStateLRInternal):
        (WTF::threadStatePCInternal):
        * wtf/PtrTag.h:
        (WTF::tagCFunctionPtr):
        (WTF::tagCFunction):
        (WTF::untagCFunctionPtr):
        (WTF::tagInt):
        (WTF::isTaggedWith):
        (WTF::assertIsTaggedWith):
        (WTF::assertIsNullOrTaggedWith):

2020-10-07  Keith Rollin  <krollin@apple.com>

        Update post-processing rules for headers to not unnecessarily change timestamps
        https://bugs.webkit.org/show_bug.cgi?id=217371
        <rdar://problem/69992230>

        Reviewed by Darin Adler.

        Under XCBuild, the scripts employed in custom build rules can be
        invoked in innocuous situations. A common example is when the user is
        building from the command-line and they change the `make` output from
        stdout to a file, or vice-versa. Changing the output changes the
        setting of the COLOR_DIAGNOSTICS environment variable, which is enough
        to cause XCBuild to think something is different and that the custom
        build rule needs to be invoked. For the script's part, nothing
        significant has changed, yet it post-processes the header files,
        causing their modification dates to change, causing downstream
        rebuilds to occur.

        Fix this problem by adopting an approach that doesn't modify the
        post-processed header files unless their contents actually change.

        * Scripts/GeneratePreferences.rb:

2020-10-07  Devin Rousso  <drousso@apple.com>

        Add missing `#define` for `PENCILKIT_TEXT_INPUT` flag
        https://bugs.webkit.org/show_bug.cgi?id=217436
        <rdar://problem/69720219>

        Reviewed by Wenson Hsieh.

        * wtf/PlatformHave.h:

2020-10-07  Tadeu Zagallo  <tzagallo@apple.com>

        Add maximum depth check to RedBlackTree
        https://bugs.webkit.org/show_bug.cgi?id=217249
        <rdar://problem/69432957>

        Reviewed by Saam Barati.

        We limit all tree traversals to 128 levels deep. That's a very conservative upper bound that
        would work for a tree that used all of the available address space.

        * wtf/RedBlackTree.h:

2020-10-07  Aditya Keerthi  <akeerthi@apple.com>

        REGRESSION: Date/time pickers are not displayed in UIWebViews
        https://bugs.webkit.org/show_bug.cgi?id=217341
        <rdar://problem/66881739>

        Reviewed by Wenson Hsieh.

        Date/time inputs were incorrectly disabled by default on
        PLATFORM(IOS_FAMILY) in WebPreferencesInternal.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

2020-10-06  Simon Fraser  <simon.fraser@apple.com>

        Redundant rendering updates can be scheduled from inside Page::updateRendering()
        https://bugs.webkit.org/show_bug.cgi?id=216726

        Reviewed by Tim Horton.

        Make it possible to dump Vectors with inline capacity.

        * wtf/text/TextStream.h:
        (WTF::operator<<):

2020-10-06  Youenn Fablet  <youenn@apple.com>

        Enable video capture in WebProcess by default on MacOS
        https://bugs.webkit.org/show_bug.cgi?id=217385
        <rdar://problem/69999542>

        Reviewed by Sam Weinig.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

2020-10-06  Alex Christensen  <achristensen@webkit.org>

        Align URL setters with reasonably behaving other browsers
        https://bugs.webkit.org/show_bug.cgi?id=217366

        Reviewed by Youenn Fablet.

        Firefox ignores everything after '/', '?', '#', and '\' in special URL schemes when setting the host to a new value.
        Chrome doesn't add another '/' to the beginning of the path if it's a special scheme and starts with '\'.
        I think these behaviors make sense, and aligning with these behaviors makes it so there are no tests in url-setters.html
        that any other browser passes that we don't also pass.
        Once https://github.com/whatwg/url/issues/551 is resolved this will also be reflected in spec wording.

        * wtf/URL.cpp:
        (WTF::URL::hasSpecialScheme const):
        (WTF::forwardSlashHashOrQuestionMark):
        (WTF::slashHashOrQuestionMark):
        (WTF::URL::setHost):
        (WTF::URL::setPath):
        * wtf/URL.h:

2020-10-05  Sam Weinig  <weinig@apple.com>

        Add implementation of <filesystem> to WTF for macOS 10.14
        https://bugs.webkit.org/show_bug.cgi?id=217302

        Reviewed by Darin Adler.

        Imports a copy of <filesystem> and its needed implementation files
        from libc++ (r343838) and modifies them to build outside of  libc++. 
        This is only needed and only built for versions of macOS < 10.15
        and can be dropped when we require 10.15.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/StdFilesystem.cpp: Added.
        * wtf/StdFilesystem.h: Added.
        * LICENSE-libc++.txt: Added.

2020-10-05  Rob Buis  <rbuis@igalia.com>

        WebKit doesn't parse "#" as delimiter for fragment identifier in data URIs
        https://bugs.webkit.org/show_bug.cgi?id=68089

        Reviewed by Alex Christensen, Ryosuke Niwa, and Darin Adler.

        * wtf/URL.h:
        * wtf/spi/darwin/dyldSPI.h:

2020-10-05  Aditya Keerthi  <akeerthi@apple.com>

        [Contact Picker API] Introduce bindings for the Contact Picker API
        https://bugs.webkit.org/show_bug.cgi?id=216793
        <rdar://problem/69317957>

        Reviewed by Wenson Hsieh.

        * Scripts/Preferences/WebPreferencesExperimental.yaml:

        Add experimental preference for the Contact Picker API.

2020-10-05  Sam Weinig  <weinig@apple.com>

        Remove support for enabling subpixel CSSOM values, it's off by default everywhere and known to be not-compatible with the web
        https://bugs.webkit.org/show_bug.cgi?id=217300

        Reviewed by Simon Fraser.

        Remove preference for toggling subpixel CSSOM values.

        * Scripts/Preferences/WebPreferences.yaml:

2020-10-05  Alex Christensen  <achristensen@webkit.org>

        URLParser should fail to parse URLs with hosts containing invalid punycode encodings
        https://bugs.webkit.org/show_bug.cgi?id=217285

        Reviewed by Darin Adler.

        URLParser has a fast path for parsing hosts that are all ASCII, but that does not validate hosts that are invalid punycode, such as "xn--".
        Since all punycode encoded strings start with "xn--", if the input string starts with "xn--" then skip the fast path and let ICU decide if it's valid.

        * wtf/URLParser.cpp:
        (WTF::URLParser::domainToASCII):
        (WTF::URLParser::startsWithXNDashDash):
        (WTF::URLParser::parseHostAndPort):
        * wtf/URLParser.h:

2020-10-05  Alex Christensen  <achristensen@webkit.org>

        When appending a Windows drive letter to a file URL, remove any path we may have copied from the base URL
        https://bugs.webkit.org/show_bug.cgi?id=217284

        Reviewed by Darin Adler.

        This fixes a web platform test and adds another to verify that we remove the entire path, not just the last segment like we do with ..
        Edge has implemented this, and in order to have a platform-independent URL we should do it too.

        * wtf/URLParser.cpp:
        (WTF::URLParser::isWindowsDriveLetter):
        (WTF::URLParser::appendWindowsDriveLetter):
        (WTF::URLParser::parse):

2020-10-05  Alex Christensen  <achristensen@webkit.org>

        Fix UTF-8 encoding in URL parsing
        https://bugs.webkit.org/show_bug.cgi?id=217289

        Reviewed by Darin Adler.

        This matches the behavior of Firefox and the Unicode and whatwg encoding specifications.

        * wtf/URLParser.cpp:
        (WTF::URLParser::utf8PercentEncode):
        (WTF::URLParser::utf8QueryEncode):
        (WTF::URLParser::parseHostAndPort):

2020-10-03  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Introduce JITOperationList to validate JIT-caged pointers
        https://bugs.webkit.org/show_bug.cgi?id=217261

        Reviewed by Saam Barati.

        * wtf/PlatformCallingConventions.h:
        * wtf/PlatformEnable.h:

2020-10-03  Alex Christensen  <achristensen@webkit.org>

        Add extra slash after empty host copied from base URL if path is also empty
        https://bugs.webkit.org/show_bug.cgi?id=217278

        Reviewed by Darin Adler.

        * wtf/URLParser.cpp:
        (WTF::URLParser::parse):

2020-10-03  Alex Christensen  <achristensen@webkit.org>

        "http:" should not be a valid URL
        https://bugs.webkit.org/show_bug.cgi?id=217250

        Reviewed by Brady Eidson.

        Same with https, ws, wss, and for some reason ftp.
        This matches the URL specification and Chrome and Firefox.

        * wtf/URLParser.cpp:
        (WTF::URLParser::parse):

2020-10-03  Aditya Keerthi  <akeerthi@apple.com>

        [macOS] Enable date, time, and datetime-local input types
        https://bugs.webkit.org/show_bug.cgi?id=217229
        <rdar://problem/69882757>

        Reviewed by Sam Weinig.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

2020-10-02  Alex Christensen  <achristensen@webkit.org>

        Copy host from base file URL
        https://bugs.webkit.org/show_bug.cgi?id=217170

        Reviewed by Brady Eidson.

        This matches Chrome and the URL specification.
        Covered by newly passing web platform tests.

        I also updated the web platform tests from https://github.com/web-platform-tests/wpt/pull/25716
        which aligns with Safari in cases except copying of the host from base file URLs.

        The implementation pushes copying from the base URL downstream in the parsing process to where it is in the URL specification
        so that we can properly decide how much of the base URL to copy and so we can copy it into the right place in the result URL.

        I also updated an assertion that makes sure that we re-use the input String if possible because there are cases where we copy
        part of the parent URL, which is a "syntax violation" (meaning we copy the string parts and assemble a new one), then re-assemble
        a new String that is equal to the input string.  This is not a problem, it just needed to be reflected in the assertion.

        * wtf/URLParser.cpp:
        (WTF::URLParser::URLParser):
        (WTF::URLParser::parse):

2020-10-02  Youenn Fablet  <youenn@apple.com>

        Add AVAssetWriter SPI header
        https://bugs.webkit.org/show_bug.cgi?id=217169
        <rdar://problem/69793050>

        Reviewed by Eric Carlson.

        * wtf/PlatformHave.h:
        Remove dependency on AVAssetWriter_private.h.
        Introduce HAVE_AVASSETWRITERDELEGATE_API for older OSes that only have delegate as SPI.

2020-10-01  Truitt Savell  <tsavell@apple.com>

        Unreviewed, reverting r267841.

        Broke Catalina Builds

        Reverted changeset:

        "Add AVAssetWriter SPI header"
        https://bugs.webkit.org/show_bug.cgi?id=217169
        https://trac.webkit.org/changeset/267841

2020-10-01  Youenn Fablet  <youenn@apple.com>

        Add AVAssetWriter SPI header
        https://bugs.webkit.org/show_bug.cgi?id=217169
        <rdar://problem/69793050>

        Reviewed by Eric Carlson.

        * wtf/PlatformHave.h:
        Remove dependency on AVAssetWriter_private.h

2020-10-01  Alex Christensen  <achristensen@webkit.org>

        Non-special URLs are not idempotent
        https://bugs.webkit.org/show_bug.cgi?id=215762

        Reviewed by Tim Horton.

        https://github.com/whatwg/url/pull/505 added an interesting edge case to the URL serialization:
        "If url’s host is null, url’s path’s size is greater than 1, and url’s path[0] is the empty string, then append U+002F (/) followed by U+002E (.) to output."
        The problem was that URLs like "a:/a/..//a" would be parsed into "a://a" with a pathname of "//a" and an empty host.  If "a://a" was then reparsed, it would again have an href of "a://a"
        but its host would be "a" and it would have an empty path.  There is consensus that URL parsing should be idempotent, so we need to do something different here.
        According to https://github.com/whatwg/url/issues/415#issuecomment-419197290 this follows what Edge did (and then subsequently abandoned when they switched to Chromium)
        to make URL parsing idempotent by adding "/." before the path in the edge case of a URL with a non-special scheme (not http, https, wss, etc.) and a null host and a non-empty path that
        has an empty first segment.  All the members of the URL remain unchanged except the full serialization (href).  This is not important in practice, but important in theory.

        Our URL parser tries very hard to use the exact same WTF::String object given as input if it can.  However, this step is better implemented as a post-processing step that will almost never happen
        because otherwise we would have to parse the entire path twice to find out if we need to add "./" or if the "./" that may have already been there needs to stay.  This is illustrated with the test URL
        "t:/.//p/../../../..//x" which does need the "./".

        In the common case, this adds one well-predicted branch to URL parsing, so I expect performance to be unaffected.  Since this is such a rare edge case of URLs, I expect no compatibility problems.

        * wtf/URL.cpp:
        (WTF::URL::pathStart const):
        * wtf/URL.h:
        (WTF::URL::pathStart const): Deleted.
        * wtf/URLParser.cpp:
        (WTF::URLParser::copyURLPartsUntil):
        (WTF::URLParser::URLParser):
        (WTF::URLParser::needsNonSpecialDotSlash const):
        (WTF::URLParser::addNonSpecialDotSlash):
        * wtf/URLParser.h:

2020-09-30  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r267795.
        https://bugs.webkit.org/show_bug.cgi?id=217135

        Incorrect fix.

        Reverted changeset:

        "REGRESSION(r259582): Build fails on aarch64 Linux with WebKit
        2.30.1 on LLIntOffsetsExtractor.cpp.o"
        https://bugs.webkit.org/show_bug.cgi?id=217079
        https://trac.webkit.org/changeset/267795

2020-09-30  Mike Gorse  <mgorse@suse.com>

        REGRESSION(r259582): Build fails on aarch64 Linux with WebKit 2.30.1 on LLIntOffsetsExtractor.cpp.o
        https://bugs.webkit.org/show_bug.cgi?id=217079

        Reviewed by Michael Catanzaro.

        * wtf/PlatformEnable.h: Only define USE_JUMP_ISLANDS if JIT is enabled.

2020-09-30  Alexander Mikhaylenko  <alexm@gnome.org>

        [GTK] Chassis type check fails if the value is quoted
        https://bugs.webkit.org/show_bug.cgi?id=217123

        Reviewed by Carlos Garcia Campos.

        Sometimes the chassis type can be quoted, in this case we'll fail to
        parse it and fall back to desktop type. Unquote the string before
        attempting to parse it.

        * wtf/glib/ChassisType.cpp:
        (WTF::readMachineInfoChassisType):

2020-09-29  Sam Weinig  <weinig@apple.com>

        [Preferences] Adopt shared preferences configuration and script in WebKit
        https://bugs.webkit.org/show_bug.cgi?id=217075

        Reviewed by Darin Adler.

        * Scripts/GeneratePreferences.rb:
        Simplify input by passing the templates as complete paths, rather than by name + template directory.

        * Scripts/Preferences/WebPreferences.yaml:
        * Scripts/Preferences/WebPreferencesDebug.yaml:
        * Scripts/Preferences/WebPreferencesExperimental.yaml:
        * Scripts/Preferences/WebPreferencesInternal.yaml:
        Fix some mistakes / things left out to make WebKit defaults and names match current WebKit names and defaults.

        * wtf/CMakeLists.txt:
        Copy all the preferences and scripts into WTF_SCRIPTS_DIR so it can be accessed by WebKit.

2020-09-29  Alex Christensen  <achristensen@webkit.org>

        Remove plist-based ResourceLoadStatistics storage, which has been replaced by database-based storage
        https://bugs.webkit.org/show_bug.cgi?id=217063

        Reviewed by John Wilander.

        * Scripts/Preferences/WebPreferencesInternal.yaml:

2020-09-28  Yusuke Suzuki  <ysuzuki@apple.com>

        Use JSC_DECLARE_JIT_OPERATION / JSC_DECLARE_CUSTOM_GETTER / JSC_DECLARE_CUSTOM_SETTER
        https://bugs.webkit.org/show_bug.cgi?id=217071

        Reviewed by Keith Miller.

        Add the following macros.

            1. JSC_DECLARE_JIT_OPERATION
            2. JSC_DEFINE_JIT_OPERATION
            3. JSC_DECLARE_CUSTOM_GETTER
            4. JSC_DEFINE_CUSTOM_GETTER
            5. JSC_DECLARE_CUSTOM_SETTER
            6. JSC_DEFINE_CUSTOM_SETTER

        * wtf/PlatformCallingConventions.h:

2020-09-28  Sam Weinig  <weinig@apple.com>

        [Preferences] Move GeneratePreferences.rb and yaml configuration files to WTF to be shared
        https://bugs.webkit.org/show_bug.cgi?id=217056

        Reviewed by Darin Adler.

        Move GeneratePreferences.rb and WebPreferences*.yaml files from WebKitLegacy to WTF, and install them into the existing
        $SDKROOT/usr/local/install/wtf/Scripts for use by down stack projects.

        * Scripts/GeneratePreferences.rb: Copied from Source/WebKitLegacy/mac/Scripts/GeneratePreferences.rb.
        * Scripts/Preferences: Added.
        * Scripts/Preferences/WebPreferences.yaml: Copied from Source/WebKitLegacy/mac/WebView/WebPreferences.yaml.
        * Scripts/Preferences/WebPreferencesDebug.yaml: Copied from Source/WebKitLegacy/mac/WebView/WebPreferencesDebug.yaml.
        * Scripts/Preferences/WebPreferencesExperimental.yaml: Copied from Source/WebKitLegacy/mac/WebView/WebPreferencesExperimental.yaml.
        * Scripts/Preferences/WebPreferencesInternal.yaml: Copied from Source/WebKitLegacy/mac/WebView/WebPreferencesInternal.yaml.
        * WTF.xcodeproj/project.pbxproj:

2020-09-25  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Introduce JSC_DECLARE_HOST_FUNCTION / JSC_DEFINE_HOST_FUNCTION to make host function definition easy-to-scanned for JIT-caging
        https://bugs.webkit.org/show_bug.cgi?id=216966

        Reviewed by Saam Barati.

        Rename JSC_HOST_CALL to JSC_HOST_CALL_ATTRIBUTE, and introduce JSC_DECLARE_HOST_FUNCTION / JSC_DEFINE_HOST_FUNCTION.
        We also introduce JSC_ANNOTATE_HOST_FUNCTION if the function is not defined as free-function[1].

        [1]: https://stackoverflow.com/questions/4861914/what-is-the-meaning-of-the-term-free-function-in-c

        * wtf/PlatformCallingConventions.h:

2020-09-25  Chris Dumez  <cdumez@apple.com>

        Get rid of AudioNode::RefType
        https://bugs.webkit.org/show_bug.cgi?id=216945

        Reviewed by Darin Adler.

        Add third template parameter to RefPtr allowing to define the traits
        from incrementing / decrementing the refcount. The default traits
        call ref() / deref() but this can now be customized to call other
        functions.

        * wtf/CompactRefPtrTuple.h:
        * wtf/Forward.h:
        * wtf/RefPtr.h:
        (WTF::DefaultRefDerefTraits::refIfNotNull):
        (WTF::DefaultRefDerefTraits::derefIfNotNull):
        (WTF::RefPtr::RefPtr):
        (WTF::RefPtr::~RefPtr):
        (WTF::V>::RefPtr):
        (WTF::V>::leakRef):
        (WTF::=):
        (WTF::V>::swap):
        (WTF::swap):
        (WTF::operator==):
        (WTF::operator!=):
        (WTF::static_pointer_cast):
        (WTF::adoptRef):
        (WTF::is):

2020-09-25  Antti Koivisto  <antti@apple.com>

        [LFC][Integration] Enable on Apple Windows port
        https://bugs.webkit.org/show_bug.cgi?id=216928
        <rdar://problem/69505961>

        Reviewed by Zalan Bujtas.

        * wtf/PlatformEnableWinApple.h:

2020-09-24  Keith Miller  <keith_miller@apple.com>

        CSS angle unit conversions should consistently use the same associativity
        https://bugs.webkit.org/show_bug.cgi?id=216906

        Reviewed by Simon Fraser.

        Right now we inconsistently associate our floating point math for
        angle unit conversions. In particular,
        conversionToCanonicalUnitsScaleFactor expects there to be a single
        fixed constant we can multiply by to change units. However, the
        various conversion functions in WTF are not associated in this
        way. e.g. rad2deg does ((radian * 180) / pi) rather than
        (radian  *(180 / pi)). Since FP math is NOT associative these
        produce different results. For example, 1.57 radians is
        89.954373835539258 degrees in the first case but
        89.954373835539243 in the second.

        This patch changes those WTF functions to operate on a single
        scale factor when converting to/from the canonical
        unit. Conversions between non-canonical units first convert to the
        canonical unit (degree).

        * wtf/MathExtras.h:
        (deg2rad):
        (rad2deg):
        (deg2grad):
        (grad2deg):
        (deg2turn):
        (turn2deg):
        (rad2grad):
        (grad2rad):

2020-09-24  Antti Koivisto  <antti@apple.com>

        [LFC][Integration] Enable on Apple Windows port
        https://bugs.webkit.org/show_bug.cgi?id=216928

        Reviewed by Sam Weinig.

        * wtf/PlatformEnableWinApple.h:

        For consistency.

2020-09-23  Fujii Hironori  <Hironori.Fujii@sony.com>

        Remove ENABLE_SVG_FONTS macro
        https://bugs.webkit.org/show_bug.cgi?id=216850

        Reviewed by Don Olmstead.

        * wtf/PlatformEnable.h:

2020-09-23  Youenn Fablet  <youenn@apple.com>

        Add support for HTMLMediaElement.setSinkId
        https://bugs.webkit.org/show_bug.cgi?id=216696

        Reviewed by Eric Carlson.

        Add HAVE_AUDIO_OUTPUT_DEVICE_UNIQUE_ID.
        * wtf/PlatformHave.h:

2020-09-21  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] BigInt should work with Map / Set
        https://bugs.webkit.org/show_bug.cgi?id=216667

        Reviewed by Robin Morisset.

        * wtf/Hasher.h:
        (WTF::Hasher::hash const):
        (WTF::add):

2020-09-21  Mark Lam  <mark.lam@apple.com>

        Move some LLInt globals into JSC::Config.
        https://bugs.webkit.org/show_bug.cgi?id=216685
        rdar://68964544

        Reviewed by Keith Miller.

        1. Introduce ConfigAlignment as a distinct value from ConfigSizeToProtect.
           This is because ConfigSizeToProtect is now larger than 1 CeilingOnPageSize on
           some platforms, but ConfigAlignment only needs to match CeilingOnPageSize.

        2. Introduced ENABLE(UNIFIED_AND_FREEZABLE_CONFIG_RECORD) to disable using the
           unified g_config record for Windows ports.

           This is needed because WTF is built as a DLL on Windows.  offlineasm does not
           know how to resolve a DLL exported variable.  Additionally, the Windows ports
           have never supported freezing of the Config record to begin with.  So, we're
           working around this by disabling ENABLE(UNIFIED_AND_FREEZABLE_CONFIG_RECORD)
           for Windows.  This allows JSC to have its own g_jscConfig record, which solves
           this issue for now.

        * wtf/PlatformEnable.h:
        * wtf/WTFConfig.cpp:
        (WTF::Config::permanentlyFreeze):
        * wtf/WTFConfig.h:

2020-09-18  Don Olmstead  <don.olmstead@sony.com>

        [WebGPU] Add ENABLE(WHLSL_COMPILER) guard
        https://bugs.webkit.org/show_bug.cgi?id=216713

        Reviewed by Myles C. Maxfield.

        Adds a default for ENABLE_WHLSL_COMPILER on Cocoa platforms.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:

2020-09-17  Devin Rousso  <drousso@apple.com>

        Web Inspector: REGRESSION(r266885): fix open source build
        https://bugs.webkit.org/show_bug.cgi?id=216675

        Reviewed by Timothy Hatcher.

        Add back methods used by `WebInspector.framework`.

        * wtf/JSONValues.h:
        * wtf/JSONValues.cpp:
        (WTF::JSONImpl::Value::asDouble const): Added.
        (WTF::JSONImpl::Value::asInteger const): Added.
        (WTF::JSONImpl::Value::asString const): Added.
        (WTF::JSONImpl::ObjectBase::getBoolean const): Added.
        (WTF::JSONImpl::ObjectBase::getString const): Added.
        (WTF::JSONImpl::ObjectBase::getObject const): Added.
        (WTF::JSONImpl::ObjectBase::getArray const): Added.
        (WTF::JSONImpl::ObjectBase::getValue const): Added.

2020-09-16  Stephan Szabo  <stephan.szabo@sony.com>

        Remove ENABLE_METER_ELEMENT
        https://bugs.webkit.org/show_bug.cgi?id=216582

        Reviewed by Fujii Hironori.

        With PlayStation finally planning to turn this on,
        no ports had this disabled, so remove the enable flag.

        * wtf/PlatformEnable.h:

2020-09-16  Alex Christensen  <achristensen@webkit.org>

        Remove unneeded HAVE_FOUNDATION_WITH_SAVE_COOKIES_WITH_COMPLETION_HANDLER
        https://bugs.webkit.org/show_bug.cgi?id=216572

        Reviewed by Youenn Fablet.

        * wtf/PlatformHave.h:

2020-09-15  David Kilzer  <ddkilzer@apple.com>

        WebKit should support building with clang ThreadSanitizer enabled
        <https://webkit.org/b/216318>
        <rdar://problem/31615729>

        Reviewed by Darin Adler.

        This patch doesn't attempt to resolve every potential false
        positive, but makes it easy to build WebKit with TSan enabled.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        - Add ThreadSanitizerSupport.h to the project.

        * wtf/Compiler.h:
        - Define TSAN_ENABLED and SUPPRESS_TSAN macros.

        * wtf/Locker.h:
        (WTF::Locker::~Locker):
        (WTF::Locker::unlockEarly):
        (WTF::Locker::operator=):
        (WTF::Locker::lock):
        - Instrument lock/unlock methods for ThreadSanitizer.

        * wtf/ThreadSanitizerSupport.h: Add.
        (AnnotateHappensBefore):
        (AnnotateHappensAfter):
        - Declare TSan runtime functions needed to annotate WTF::Locker.
        (TSAN_ANNOTATE_HAPPENS_BEFORE):
        (TSAN_ANNOTATE_HAPPENS_AFTER):
        - Define macros used to call TSan runtime functions if TSan is
          enabled.

2020-09-15  Myles C. Maxfield  <mmaxfield@apple.com>

        [macOS Big Sur] CGFontRenderingGetFontSmoothingDisabled() is no longer useful
        https://bugs.webkit.org/show_bug.cgi?id=216588
        <rdar://problem/68657748>

        Reviewed by Simon Fraser.

        We can eliminate WebKit's use of it to eventually phase it out entirely.

        * wtf/PlatformHave.h:

2020-09-12  Simon Fraser  <simon.fraser@apple.com>

        Convert TextStream::FormattingFlags to an OptionSet<>
        https://bugs.webkit.org/show_bug.cgi?id=216443

        Reviewed by Darin Adler.

        Use an OptionSet<> for FormattingFlags.

        * wtf/text/TextStream.h:
        (WTF::TextStream::TextStream):
        (WTF::TextStream::formattingFlags const):
        (WTF::TextStream::setFormattingFlags):
        (WTF::TextStream::hasFormattingFlag const):

2020-09-11  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Canonicalize "true" unicode extension type value to ""
        https://bugs.webkit.org/show_bug.cgi?id=216224

        Reviewed by Ross Kirsling.

        * wtf/text/StringView.h:
        (WTF::StringView::characterAt const):
        (WTF::StringView::operator[] const):

2020-09-11  Myles C. Maxfield  <mmaxfield@apple.com>

        [Cocoa] Migrate CoreText-specific code from ***Cocoa.mm to ***CoreText.cpp
        https://bugs.webkit.org/show_bug.cgi?id=216400

        Reviewed by Tim Horton.

        * wtf/PlatformUse.h:

2020-09-11  Kate Cheney  <katherine_cheney@apple.com>

        Followup to Bug 215027: address comments to improve APP_BOUND_DOMAINS macro use
        https://bugs.webkit.org/show_bug.cgi?id=216373
        <rdar://problem/68645704>

        Reviewed by Darin Adler.

        Remove unnecessary default. All enable flags are off by default.

        * wtf/PlatformEnable.h:

2020-09-10  Ben Nham  <nham@apple.com>

        Disable hardware JPEG decoding on x86 Mac
        https://bugs.webkit.org/show_bug.cgi?id=216377

        Reviewed by Geoff Garen.

        Add macros to disable HW JPEG decoding on x86 Macs and indicate the presence of a new MediaToolbox SPI.
        (The latter is to prevent unnecessary dlopen/dlsym calls since we soft-link MediaToolbox.)

        * wtf/PlatformEnableCocoa.h:
        * wtf/PlatformHave.h:

2020-09-10  Devin Rousso  <drousso@apple.com>

        Web Inspector: modernize generated backend protocol code
        https://bugs.webkit.org/show_bug.cgi?id=216302
        <rdar://problem/68547649>

        Reviewed by Brian Burg.

        * wtf/JSONValues.h:
        (WTF::JSONImpl::ObjectBase::setValue):
        (WTF::JSONImpl::ObjectBase::setObject):
        (WTF::JSONImpl::ObjectBase::setArray):
        (WTF::JSONImpl::ArrayBase::pushValue):
        (WTF::JSONImpl::ArrayBase::pushObject):
        (WTF::JSONImpl::ArrayBase::pushArray):
        (WTF::JSONImpl::ArrayOf::ArrayOf): Deleted.
        (WTF::JSONImpl::ArrayOf::castedArray): Deleted.
        (WTF::JSONImpl::ArrayOf::addItem): Deleted.
        (WTF::JSONImpl::ArrayOf::create): Deleted.
        * wtf/JSONValues.cpp:
        (WTF::JSONImpl::Value::asValue):
        (WTF::JSONImpl::Value::asObject):
        (WTF::JSONImpl::Value::asArray):
        (WTF::JSONImpl::Value::parseJSON):
        (WTF::JSONImpl::Value::asBoolean const):
        (WTF::JSONImpl::Value::asDouble const):
        (WTF::JSONImpl::Value::asInteger const):
        (WTF::JSONImpl::Value::asString const):
        (WTF::JSONImpl::ObjectBase::asObject):
        (WTF::JSONImpl::ObjectBase::memoryCost const):
        (WTF::JSONImpl::ObjectBase::getBoolean const):
        (WTF::JSONImpl::ObjectBase::getDouble const):
        (WTF::JSONImpl::ObjectBase::getInteger const):
        (WTF::JSONImpl::ObjectBase::getString const):
        (WTF::JSONImpl::ObjectBase::getObject const):
        (WTF::JSONImpl::ObjectBase::getArray const):
        (WTF::JSONImpl::ObjectBase::getValue const):
        (WTF::JSONImpl::ObjectBase::ObjectBase):
        (WTF::JSONImpl::ArrayBase::asArray):
        (WTF::JSONImpl::ArrayBase::writeJSON const):
        (WTF::JSONImpl::ArrayBase::ArrayBase):
        (WTF::JSONImpl::ArrayBase::get const):
        (WTF::JSONImpl::ArrayBase::memoryCost const):
        (WTF::JSONImpl::ObjectBase::openAccessors): Deleted.
        Use `Ref&&` wherever possible and `Optional` instead of an out parameter for `get*`/`as*`
        so that values can be more easily manipulated and can be confidently assumed to exist.
        Remove unused overloads and allow subclasses to call `as*` instead of `openAccessors` as
        they're effectively the same thing.

2020-09-10  Jer Noble  <jer.noble@apple.com>

        [Cocoa] PERF: Don't instantiate AVPlayer-based audio decoders or renderers if an element is initially muted.
        https://bugs.webkit.org/show_bug.cgi?id=216299

        Reviewed by Eric Carlson.

        * wtf/PlatformHave.h:

2020-09-10  Tim Horton  <timothy_horton@apple.com>

        Upstream additional linked-on-or-after version checks
        https://bugs.webkit.org/show_bug.cgi?id=216365

        Reviewed by Sam Weinig.

        * wtf/spi/darwin/dyldSPI.h:

2020-09-10  Kate Cheney  <katherine_cheney@apple.com>

        Clean up App-Bound Domains code to only compile for iOS with its own macro
        https://bugs.webkit.org/show_bug.cgi?id=215027
        <rdar://problem/63688232>

        Reviewed by Darin Adler.

        Define a new APP_BOUND_DOMAINS preprocessor macro to more aptly gate
        App Bound Domains behavior.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:

2020-09-10  Said Abou-Hallawa  <sabouhallawa@apple.com>

        [CG] REGRESSION (Big Sur): A GIF image with a finite loopCount loops an extra cycle
        https://bugs.webkit.org/show_bug.cgi?id=216018
        <rdar://problem/68304035>

        Reviewed by Tim Horton.

        Add a new macro for the new accurate behavior of CGImageSource.

        Unrelated change: Fix the conditions for enabling the WebP images.

        * wtf/PlatformHave.h:

2020-09-09  Ryosuke Niwa  <rniwa@webkit.org>

        Simplify OptionSet::set
        https://bugs.webkit.org/show_bug.cgi?id=216335

        Reviewed by Said Abou-Hallawa.

        Simplified the implementation of OptionSet::set since we've verified that both clang and gcc
        generate comparable code in x86_64 and clang does the same for arm64.

        * wtf/OptionSet.h:
        (WTF::OptionSet::set):

2020-09-09  Wenson Hsieh  <wenson_hsieh@apple.com>

        Text copied and pasted from Mac Catalyst apps appears larger than expected
        https://bugs.webkit.org/show_bug.cgi?id=215971
        <rdar://problem/65768907>

        Reviewed by Tim Horton.

        Add a new flag to guard the presence of `_UIApplicationCatalystUserInterfaceIdiom`,
        `_UIApplicationCatalystScaleFactor`, and `_UIApplicationCatalystRequestViewServiceIdiomAndScaleFactor`.

        * wtf/PlatformHave.h:

2020-09-08  Ryosuke Niwa  <rniwa@webkit.org>

        Node flags should be an OptionSet
        https://bugs.webkit.org/show_bug.cgi?id=216305

        Reviewed by Antti Koivisto.

        * wtf/OptionSet.h:
        (WTF::OptionSet::set): Added.

2020-09-06  Ryosuke Niwa  <rniwa@webkit.org>

        Make CompactUniquePtrTuple actually work with subclassing and custom deleter
        https://bugs.webkit.org/show_bug.cgi?id=216225

        Reviewed by Darin Adler.

        Fixed bugs in CompactUniquePtrTuple which prevented subclassing and custom deleter to work.

        * wtf/CompactPointerTuple.h:
        (WTF::CompactPointerTuple::CompactPointerTuple): Added move constructor with implicit cast
        of a convertible pointer type.
        * wtf/CompactUniquePtrTuple.h:
        (WTF::makeCompactUniquePtr): Added the missing deleter from the return type.
        (WTF::CompactUniquePtrTuple::CompactUniquePtrTuple): Allow Deleter to be different if it's
        the default deleter in the move constructor so that CompactUniquePtrTuple<U, Type> could be
        moved to CompactUniquePtrTuple<T, Type> if U is convertible to T without having to specify
        the same deleter (std::default_delete<U> is not same as std::default_delete<T> but allow it).
        (WTF::CompactUniquePtrTuple::operator=): Ditto.
        (WTF::CompactUniquePtrTuple::setPointer): Ditto from std::unique_ptr.
        (WTF::CompactUniquePtrTuple): Friend declare all other specializations of CompactUniquePtrTuple
        so that the above fixes work.

2020-09-06  Myles C. Maxfield  <mmaxfield@apple.com>

        [iOS] attachmentActionFont() Needs to use kCTFontSymbolicTrait: @(kCTFontTraitTightLeading | kCTFontTraitEmphasized) to get the short emphasized footnote font
        https://bugs.webkit.org/show_bug.cgi?id=215707
        <rdar://problem/63930892>

        Reviewed by Darin Adler.

        * wtf/PlatformHave.h:

2020-09-06  Myles C. Maxfield  <mmaxfield@apple.com>

        CTFontGetPhysicalSymbolicTraits() is faster than CTFontCopyPhysicalFont()/CTFontGetSymbolicTraits()
        https://bugs.webkit.org/show_bug.cgi?id=215685

        Reviewed by Darin Adler.

        * wtf/PlatformHave.h:

2020-09-06  Darin Adler  <darin@apple.com>

        TextCodec refinements
        https://bugs.webkit.org/show_bug.cgi?id=216219

        Reviewed by Sam Weinig.

        * wtf/unicode/CharacterNames.h: Use constexpr instead of just const.
        Added byteOrderMark, synonym for zeroWidthNoBreakSpace.

2020-09-05  Myles C. Maxfield  <mmaxfield@apple.com>

        [Cocoa] USE(PLATFORM_SYSTEM_FALLBACK_LIST) is true on all Cocoa platforms, so there's no need to consult it in Cocoa-specific files
        https://bugs.webkit.org/show_bug.cgi?id=215684

        Reviewed by Darin Adler.

        * wtf/PlatformUse.h:

2020-09-05  Myles C. Maxfield  <mmaxfield@apple.com>

        [Cocoa] CTFontIsSystemUIFont() is faster than CTFontDescriptorIsSystemUIFont()/CTFontCopyFontDescriptor()
        https://bugs.webkit.org/show_bug.cgi?id=215687

        Reviewed by Darin Adler.

        * wtf/PlatformHave.h:

2020-09-05  Myles C. Maxfield  <mmaxfield@apple.com>

        [Cocoa] Migrate off SPI in Font::platformWidthForGlyph()
        https://bugs.webkit.org/show_bug.cgi?id=215670

        Reviewed by Zalan Bujtas.

        * wtf/PlatformUse.h:

2020-09-04  Alex Christensen  <achristensen@webkit.org>

        Move PDF heads-up display to UI process on macOS
        https://bugs.webkit.org/show_bug.cgi?id=215780
        <rdar://problem/58715847>

        Reviewed by Tim Horton.

        * wtf/PlatformHave.h:

2020-09-03  Ryosuke Niwa  <rniwa@webkit.org>

        GTK+ build fix attempt after r266573.

        * wtf/CompactUniquePtrTuple.h:

2020-09-02  Ryosuke Niwa  <rniwa@webkit.org>

        Add CompactUniquePtrTuple
        https://bugs.webkit.org/show_bug.cgi?id=215936

        Reviewed by Darin Adler.

        Added a new template class, CompactUniquePtrTuple, which stores a pointer and up to 16-bits of
        a POD type using CompactPointerTuple.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/CompactUniquePtrTuple.h: Added.
        (WTF::makeCompactUniquePtr): Added. Like makeUnique, creates an object of the specified type
        and returns CompactUniquePtrTuple.
        (WTF::CompactUniquePtrTuple): Added.
        (WTF::CompactUniquePtrTuple::CompactUniquePtrTuple): Move constructor.
        (WTF::CompactUniquePtrTuple::~CompactUniquePtrTuple):
        (WTF::CompactUniquePtrTuple::operator=):
        (WTF::CompactUniquePtrTuple::pointer):
        (WTF::CompactUniquePtrTuple::moveToUniquePtr): Clears this pointer and returns unique_ptr.
        (WTF::CompactUniquePtrTuple::setPointer): Like CompactPointerTuple sets the pointer component
        of this tuple, freeing the old object if there is already one stored.
        (WTF::CompactUniquePtrTuple::type):
        (WTF::CompactUniquePtrTuple::setType):
        (WTF::CompactUniquePtrTuple::CompactUniquePtrTuple): Constructor which takes unique_ptr&&.
        (WTF::CompactUniquePtrTuple::deletePointer):

2020-09-02  Ryosuke Niwa  <rniwa@webkit.org>

        Add a variant of map which filters items to Vector.h
        https://bugs.webkit.org/show_bug.cgi?id=215879

        Reviewed by Darin Adler and Yusuke Suzuki.

        This patch adds WTF::compactMap, which calls a function on each item in an iterable object like WTF::map
        but also filters the returned value. The mapped function may return Optional<T> or RefPtr<T>. The value
        is kept in the result if the returned value is not WTF::nullopt in the case of Optional<T> and not null
        in the case of RefPtr<T>. The result will be either Vector<T> for Optional<T> or else Vector<Ref<T>>.

        * wtf/Vector.h:
        (WTF::CompactMapTraits:): Added. Traits to have a different behavior
        (WTF::CompactMapTraits<Optional<T>>::hasValue): Added.
        (WTF::CompactMapTraits<Optional<T>>::extractValue): Added.
        (WTF::CompactMapTraits<RefPtr<T>>::hasValue): Added.
        (WTF::CompactMapTraits<RefPtr<T>>::extractValue): Added.
        (WTF::CompactMap): Added. The helper to use WTFMove on the argument to the mapped function if possible.
        (WTF::compactMap): Added.

2020-09-02  Said Abou-Hallawa  <sabouhallawa@apple.com>

        Unreviewed, reverting r266449.

        Underlying frameworks do not work correctly for loopCount >=
        1.

        Reverted changeset:

        "[CG] REGRESSION (Big Sur): A GIF image with a finite
        loopCount loops an extra cycle"
        https://bugs.webkit.org/show_bug.cgi?id=216018
        https://trac.webkit.org/changeset/266449

2020-09-01  Said Abou-Hallawa  <sabouhallawa@apple.com>

        [CG] REGRESSION (Big Sur): A GIF image with a finite loopCount loops an extra cycle
        https://bugs.webkit.org/show_bug.cgi?id=216018
        <rdar://problem/66660579>

        Reviewed by Tim Horton.

        Add a new macro for the new accurate behavior of CGImageSource.

        Unrelated change: Fix the conditions for enabling the WebP images.

        * wtf/PlatformHave.h:

2020-08-31  Mark Lam  <mark.lam@apple.com>

        Remove some PtrTag debugging code from release builds.
        https://bugs.webkit.org/show_bug.cgi?id=216025
        <rdar://problem/68098263>

        Reviewed by Saam Barati.

        Converted uses of PtrTagAction::ReleaseAssert to PtrTagAction::DebugAssert.
        These assertions serve a purpose during development (hence, PtrTagAction::DebugAssert),
        but is no longer needed for release builds.  Previously, we use these assertions
        to verify that pointers are tagged correctly in release build.  Clang takes care
        of that automatically now.

        Also removed PtrTag name lookup debugging utility from release builds.

        * wtf/PtrTag.cpp:
        * wtf/PtrTag.h:
        (WTF::untagCodePtr):
        (WTF::retagCodePtrImpl):
        (WTF::assertIsCFunctionPtr):
        (WTF::assertIsNotTagged):
        (WTF::assertIsTagged):
        (WTF::assertIsTaggedWith):

2020-09-01  Alex Christensen  <achristensen@webkit.org>

        Update URL fragment percent encode set
        https://bugs.webkit.org/show_bug.cgi?id=216022

        Reviewed by Youenn Fablet.

        It now matches the behavior of Chrome and Firefox, as well as the spec at
        https://url.spec.whatwg.org/#fragment-percent-encode-set

        * wtf/URLParser.cpp:
        (WTF::isInFragmentEncodeSet):
        (WTF::URLParser::parse):

2020-09-01  Alex Christensen  <achristensen@webkit.org>

        Align Big5 decoding with spec, Chrome, and Firefox
        https://bugs.webkit.org/show_bug.cgi?id=216016

        Reviewed by Darin Adler.

        * wtf/text/CodePointIterator.h:

2020-09-01  Carlos Garcia Campos  <cgarcia@igalia.com>

        [Linux] Web Inspector: show per thread cpu usage
        https://bugs.webkit.org/show_bug.cgi?id=215883

        Reviewed by Adrian Perez de Castro.

        Add API to get the thread ID in Linux platform.

        * wtf/Threading.cpp:
        (WTF::Thread::initializeInThread):
        * wtf/Threading.h:
        (WTF::Thread::id const):
        * wtf/ThreadingPrimitives.h:
        * wtf/posix/ThreadingPOSIX.cpp:
        (WTF::Thread::currentID):

2020-08-31  Alex Christensen  <achristensen@webkit.org>

        Make Big5 encoder conform to the specification and behavior of Chrome and Firefox
        https://bugs.webkit.org/show_bug.cgi?id=215983

        Reviewed by Darin Adler.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/URLParser.cpp:
        (WTF::CodePointIterator::CodePointIterator): Deleted.
        (WTF::CodePointIterator::operator== const): Deleted.
        (WTF::CodePointIterator::operator!= const): Deleted.
        (WTF::CodePointIterator::atEnd const): Deleted.
        (WTF::CodePointIterator::codeUnitsSince const): Deleted.
        (WTF::CodePointIterator<LChar>::operator const): Deleted.
        (WTF::CodePointIterator<LChar>::operator): Deleted.
        (WTF::CodePointIterator<UChar>::operator const): Deleted.
        (WTF::CodePointIterator<UChar>::operator): Deleted.
        * wtf/text/CodePointIterator.h: Added.
        (WTF::CodePointIterator::CodePointIterator):
        (WTF::CodePointIterator::operator== const):
        (WTF::CodePointIterator::operator!= const):
        (WTF::CodePointIterator::atEnd const):
        (WTF::CodePointIterator::codeUnitsSince const):
        (WTF::CodePointIterator<LChar>::operator const):
        (WTF::CodePointIterator<LChar>::operator):
        (WTF::CodePointIterator<UChar>::operator const):
        (WTF::CodePointIterator<UChar>::operator):

2020-08-30  Jim Mason  <jmason@ibinx.com>

        [GTK] REGRESSION(r150392) insufficient space allocation results in heap corruption
        https://bugs.webkit.org/show_bug.cgi?id=215976

        Reviewed by Carlos Garcia Campos.

        * wtf/glib/RunLoopGLib.cpp:
        (WTF::RunLoop::TimerBase::TimerBase):

2020-08-27  Stephan Szabo  <stephan.szabo@sony.com>

        [PlayStation] Build fix due to memmem not always being available.
        https://bugs.webkit.org/show_bug.cgi?id=215893

        Unreviewed build fix

        * wtf/PlatformHave.h: Don't always HAVE_MEMMEM on playstation

2020-08-27  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Include the run loop source name in frame rendering timeline
        https://bugs.webkit.org/show_bug.cgi?id=215847

        Reviewed by Adrian Perez de Castro.

        Pass the run loop source name to the observer.

        * wtf/RunLoop.h:
        * wtf/glib/RunLoopGLib.cpp:
        (WTF::RunLoop::RunLoop):
        (WTF::RunLoop::notify):

2020-08-26  Alexey Shvayka  <shvaikalesh@gmail.com>

        Use jsTypeofIsObject() in DFG AI and operationTypeOfIsObject()
        https://bugs.webkit.org/show_bug.cgi?id=144457

        Reviewed by Saam Barati.

        * wtf/TriState.h:
        (WTF::invert):

2020-08-25  Ryosuke Niwa  <rniwa@webkit.org>

        HashMap<Ref<T>>::take should return RefPtr<T>
        https://bugs.webkit.org/show_bug.cgi?id=215830

        Reviewed by Darin Adler.

        Updated the hash traits for Ref<T> to make HashMap<Ref<T>> and HashSet<Ref<T>>
        return RefPtr<T> instad of Optional<Ref<T>>.

        * wtf/HashTraits.h:
        (WTF::RefHashTraits::take):

2020-08-25  Per Arne Vollan  <pvollan@apple.com>

        [Win] Assert failure under RunLoop::RunLoop
        https://bugs.webkit.org/show_bug.cgi?id=215812

        Reviewed by Brent Fulgham.

        The assert 'ASSERT(::IsWindow(m_runLoopMessageWindow))' under RunLoop::RunLoop will fail if the JSC API JSGlobalContextCreate*()
        is being called by a client before WTF::initializeMainThread() has been called. The assertion fails because the method
        RunLoop::registerRunLoopMessageWindowClass() has not been called yet, since it is only called when initializing the main thread.
        This patch addresses this issue by making sure the window class has been registered before being referenced in RunLoop::RunLoopl
        The method call is also removed from the main thread initialization, since the window class is only used in RunLoop::RunLoop,
        making it sufficient to only be registered there. Also change the debug assert to a release assert, so we can catch similar
        issues in release builds.

        * wtf/win/MainThreadWin.cpp:
        (WTF::initializeMainThreadPlatform):
        * wtf/win/RunLoopWin.cpp:
        (WTF::RunLoop::registerRunLoopMessageWindowClass):
        (WTF::RunLoop::RunLoop):

2020-08-24  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Implement rendering frames timeline panel for GTK+ port
        https://bugs.webkit.org/show_bug.cgi?id=150392
        <rdar://problem/23200510>

        Reviewed by Brian Burg.

        Add API to observe RunLoop events for GLib event loop implementation.

        * wtf/RunLoop.h:
        * wtf/glib/RunLoopGLib.cpp:
        (WTF::RunLoop::RunLoop): Use RunLoopSource struct and initialize the RunLoop.
        (WTF::RunLoop::observe): Add the given observer to the set.
        (WTF::RunLoop::notify): Notife observers of the given event.
        (WTF::RunLoop::TimerBase::TimerBase): Use RunLoopSource struct and initialize the RunLoop.

2020-08-24  Alex Christensen  <achristensen@webkit.org>

        Implement Request/Response consuming as FormData
        https://bugs.webkit.org/show_bug.cgi?id=215671

        Reviewed by Darin Adler.

        In order to be compatible with other browsers, we need a verson of String::fromUTF8 that
        uses U8_NEXT_OR_FFFD instead of U8_NEXT, but changing that across the board will break other things.
        Leave everything else as it is, use templates and constexpr to not add any branches, but add
        String::fromUTF8ReplacingInvalidSequences to allow me to make our FormData consuming compatible with other browsers.

        * wtf/text/WTFString.cpp:
        (WTF::fromUTF8Helper):
        (WTF::String::fromUTF8):
        (WTF::String::fromUTF8ReplacingInvalidSequences):
        * wtf/text/WTFString.h:
        * wtf/unicode/UTF8Conversion.cpp:
        (WTF::Unicode::convertUTF8ToUTF16Impl):
        (WTF::Unicode::convertUTF8ToUTF16):
        (WTF::Unicode::convertUTF8ToUTF16ReplacingInvalidSequences):
        * wtf/unicode/UTF8Conversion.h:

2020-08-24  Alex Christensen  <achristensen@webkit.org>

        Make _WKWebsiteDataStoreConfiguration SPI for HSTS storage to replace _WKProcessPoolConfiguration.hstsStorageDirectory
        https://bugs.webkit.org/show_bug.cgi?id=213048

        Reviewed by Youenn Fablet.

        * wtf/PlatformHave.h:

2020-08-22  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Add Intl.Segmenter
        https://bugs.webkit.org/show_bug.cgi?id=213638

        Reviewed by Ross Kirsling.

        * wtf/text/WTFString.cpp:
        (WTF::String::charactersWithoutNullTermination const):
        (WTF::String::charactersWithNullTermination const):
        * wtf/text/WTFString.h:

2020-08-18  Simon Fraser  <simon.fraser@apple.com>

        Turn off wheel event regions until we need them
        https://bugs.webkit.org/show_bug.cgi?id=215586

        Reviewed by Darin Adler.
        
        Leave ENABLE_WHEEL_EVENT_REGIONS off because it's currently unused, and adds extra
        region building overhead on macOS.

        * wtf/PlatformEnableCocoa.h:

2020-08-17  Fujii Hironori  <Hironori.Fujii@sony.com>

        [WTF] HashTable<Ref<K>, V>::HashTable(const HashTable& other) can't compile
        https://bugs.webkit.org/show_bug.cgi?id=215550

        Reviewed by Darin Adler.

        Even though the copy constructor takes a const HashTable
        reference, RefHashTraits::assignToEmpty takes non-const Ref<P>. It
        seems that RefHashTraits::assignToEmpty and
        Ref::assignToHashTableEmptyValue are unnecessary. Just remove them.

        * wtf/HashTraits.h:
        (WTF::RefHashTraits::assignToEmpty): Deleted.
        * wtf/Ref.h:
        (WTF::Ref::assignToHashTableEmptyValue): Deleted.

2020-08-17  Youenn Fablet  <youenn@apple.com>

        Bump HAVE_NSURLSESSION_WEBSOCKET requirement to BigSur for MacOS
        https://bugs.webkit.org/show_bug.cgi?id=215517

        Reviewed by Alex Christensen.

        Catalina NSURLSession WebSocket is missing some features we need.
        Bump it to Big Sur.

        * wtf/PlatformHave.h:

2020-08-15  Yusuke Suzuki  <ysuzuki@apple.com>

        Use std::call_once + LazyNeverDestroyed to initialize complex data structures
        https://bugs.webkit.org/show_bug.cgi?id=215535
        <rdar://problem/66774266>

        Reviewed by Mark Lam.

        NeverDestroyed<> is not thread-safe in Darwin build since it is not using C++11 thread-safe static variable semantics.
        This patch uses LazyNeverDestroyed and call_once to initialize complex data structures so that we can ensure they are
        initialized atomically.

        We also move some of `singleton` definitions from headers to cpp files. This is important since this ensures that singleton
        is only one instance which is generated in one translation unit.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/FastMalloc.cpp:
        (WTF::MallocCallTracker::singleton):
        * wtf/Language.cpp:
        (WTF::observerMap):
        (WTF::preferredLanguagesOverride):
        * wtf/Logger.cpp:
        (WTF::Logger::observers):
        * wtf/Logger.h:
        (WTF::Logger::observerLock):
        (WTF::Logger::observers): Deleted.
        * wtf/MemoryPressureHandler.cpp:
        (WTF::MemoryPressureHandler::singleton):
        * wtf/MemoryPressureHandler.h:
        * wtf/RunLoop.cpp:
        (WTF::RunLoop::current):
        * wtf/Threading.cpp:
        (WTF::Thread::initializeInThread):
        * wtf/URL.cpp:
        (WTF::aboutBlankURL):
        (WTF::aboutSrcDocURL):
        * wtf/cf/LanguageCF.cpp:
        (WTF::preferredLanguages):
        * wtf/cocoa/NSURLExtras.mm:
        (WTF::rangeOfURLScheme):
        * wtf/text/LineBreakIteratorPoolICU.cpp: Copied from Source/WTF/wtf/Logger.cpp.
        (WTF::LineBreakIteratorPool::sharedPool):
        * wtf/text/LineBreakIteratorPoolICU.h:
        (WTF::LineBreakIteratorPool::sharedPool): Deleted.
        * wtf/text/StringView.cpp:
        * wtf/text/TextBreakIterator.cpp:
        (WTF::TextBreakIteratorCache::singleton):
        * wtf/text/TextBreakIterator.h:
        (WTF::TextBreakIteratorCache::singleton): Deleted.
        * wtf/threads/Signals.cpp:
        (WTF::activeThreads):

2020-08-11  Wenson Hsieh  <wenson_hsieh@apple.com>

        Text input autocorrect="off" attribute ignored on Mac
        https://bugs.webkit.org/show_bug.cgi?id=151019
        <rdar://problem/65061700>

        Reviewed by Simon Fraser.

        * wtf/PlatformEnableCocoa.h: Turn the feature on for macOS.

2020-08-10  Myles C. Maxfield  <mmaxfield@apple.com>

        [Cocoa] Migrate from CTFontTransformGlyphsWithLanguage() to CTFontShapeGlyphs()
        https://bugs.webkit.org/show_bug.cgi?id=215059

        Reviewed by Darin Adler.

        * wtf/PlatformUse.h: Rename CTFONTTRANSFORMGLYPHSWITHLANGUAGE to CTFONTSHAPEGLYPHS,
        because that's the new function.

2020-08-09  Ben Nham  <nham@apple.com>

        Preload graphics drivers in Mac WebProcess
        https://bugs.webkit.org/show_bug.cgi?id=215183

        Reviewed by Darin Adler.

        Enable GPU driver preheating in versions of the OS that might not have the drivers in the dyld
        shared cache due to size restrictions.

        * wtf/PlatformEnableCocoa.h:

2020-08-09  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r263195, r263252, and r265394.
        https://bugs.webkit.org/show_bug.cgi?id=215312

        Revert all related GC Bitmap changes because some of perf is
        not fully recovered

        Reverted changesets:

        "Replace JSC::FreeList linked list with a Bitmap."
        https://bugs.webkit.org/show_bug.cgi?id=213071
        https://trac.webkit.org/changeset/263195

        "Unify Bitmap math loops in
        MarkedBlock::Handle::specializedSweep()."
        https://bugs.webkit.org/show_bug.cgi?id=213345
        https://trac.webkit.org/changeset/263252

        "[JSC] Disable ENABLE_BITMAP_FREELIST"
        https://bugs.webkit.org/show_bug.cgi?id=215285
        https://trac.webkit.org/changeset/265394

2020-08-08  Joonghun Park  <jh718.park@samsung.com>

        [WTF] Remove the build warning since r265344.
        https://bugs.webkit.org/show_bug.cgi?id=215269

        warning: parameter ‘integer’ set but not used [-Wunused-but-set-parameter]

        * wtf/text/IntegerToStringConversion.h:
        (WTF::lengthOfIntegerAsString):

2020-08-07  John Wilander  <wilander@apple.com>

        Experimental: Cap the expiry of persistent cookies set in 3rd-party CNAME cloaked HTTP responses
        https://bugs.webkit.org/show_bug.cgi?id=215201
        <rdar://problem/57454633>

        Reviewed by Brent Fulgham. Also reviewed and commented on by Chris Dumez, Jiten Mehta, Sam Weinig, and Alex Christensen.

        This change defines HAVE_CFNETWORK_CNAME_AND_COOKIE_TRANSFORM_SPI.

        * wtf/PlatformHave.h:

2020-08-07  Saam Barati  <sbarati@apple.com>

        Use thread_switch instead of switch_pri to drop priority to zero for 1ms instead of 10
        https://bugs.webkit.org/show_bug.cgi?id=215248

        Reviewed by Yusuke Suzuki.

        This seems to be a slight JetStream2 and Speedometer2 speedup. In the
        range of 0%-0.75%, depending on device.

        * wtf/posix/ThreadingPOSIX.cpp:
        (WTF::Thread::yield):

2020-08-07  Robin Morisset  <rmorisset@apple.com>

        Fix inequality in newly added assertion
        https://bugs.webkit.org/show_bug.cgi?id=215272

        Reviewed by Alexey Proskuryakov.

        No new tests, as it was caught by our testing infrastructure (not sure why it only got caught after landing).

        * wtf/IndexSparseSet.h:
        (WTF::OverflowHandler>::validate):

2020-08-07  Robin Morisset  <rmorisset@apple.com>

        IndexSparseSet::sort() should update m_map
        https://bugs.webkit.org/show_bug.cgi?id=215100

        Reviewed by Yusuke Suzuki and Mark Lam.

        IndexSparseSet is made of two fields: m_values and m_map, and the two must be kept in sync.
        But its sort routine currently only sorts m_values.
        This might be related to a random crash that seems to occasionally occur in the vicinity of this code in the wild (rdar://problem/64594569)

        I added a validation routine, that I run in the tests that I added to TestWTF.
        I verified, and without the fix, the validation routine fails after the sorting.

        I also fixed remove() which was wrong on non-trivial types (thanks to Mark for catching this other bug).

        * wtf/IndexSparseSet.h:
        (WTF::OverflowHandler>::remove):
        (WTF::OverflowHandler>::sort):
        (WTF::OverflowHandler>::validate):

2020-08-07  Youenn Fablet  <youenn@apple.com>

        Introduce a Vector::isolatedCopy() &&
        https://bugs.webkit.org/show_bug.cgi?id=215160

        Reviewed by Alex Christensen.

        By introducing an isolatedCopy() &&, we remove the need to allocate a vector buffer.
        This can make a Vector<String>::isolatedCopy() allocate no memory at all in cases like RegistrationDatabase::schedulePushChanges.

        * wtf/Vector.h:
        (WTF::Malloc>::isolatedCopy const):
        (WTF::Malloc>::isolatedCopy):

2020-08-06  David Kilzer  <ddkilzer@apple.com>

        WTF::makeString() should handle enum values
        <https://webkit.org/b/214906>

        Reviewed by Sam Weinig.

        * wtf/text/IntegerToStringConversion.h:
        (WTF::numberToStringSigned):
        - Drive-by fix to change std::make_unsigned<>::type to
          std::make_unsigned_t<>.
        (WTF::writeNumberToBufferImpl): Delete.
        (WTF::writeIntegerToBufferImpl):
        - Rename from WTF::writeNumberToBufferImpl().
        (WTF::writeNumberToBufferSigned): Delete.
        (WTF::writeNumberToBufferUnsigned): Delete.
        (WTF::writeIntegerToBuffer):
        - Replace WTF::writeNumberToBufferSigned() and
          WTF::writeNumberToBufferUnsigned() with a single function that
          uses constexpr checks to let the compiler eliminate code.  Had
          to use if/else if/else construct to help the compiler
          eliminate unused cases.
        (WTF::lengthOfNumberAsStringImpl): Delete.
        (WTF::lengthOfIntegerAsStringImpl):
        - Rename from WTF::lengthOfNumberAsStringImpl().
        (WTF::lengthOfNumberAsStringSigned): Delete.
        (WTF::lengthOfNumberAsStringUnsigned): Delete.
        (WTF::lengthOfIntegerAsString):
        - Replace WTF::lengthOfNumberAsStringSigned() and
          WTF::lengthOfNumberAsStringUnsigned() with a single function
          that uses constexpr checks to let the compiler eliminate code.
          Had to use if/else if/else construct to help the compiler
          eliminate unused cases.

        * wtf/text/StringConcatenateNumbers.h:
        (WTF::StringTypeAdapter<SignedInt, ...>): Deleted.
        (WTF::StringTypeAdapter<UnignedInt, ...>): Deleted.
        (WTF::StringTypeAdapter<Integer, ...>):
        - Combine signed/unsigned templated classes into a single class
          now that WTF::lengthOfIntegerAsString() and
          WTF::writeIntegerToBuffer() are templated.
        (WTF::StringTypeAdapter<Enum, ...>):
        - Add support for enum types to WTF::makeString().  This also
          takes advantage of templated WTF::lengthOfIntegerAsString()
          and WTF::writeIntegerToBuffer() functions since enum types may
          be either signed or unsigned.

2020-08-05  Tim Horton  <timothy_horton@apple.com>

        Remove all references to non-existent 10.16
        https://bugs.webkit.org/show_bug.cgi?id=215202

        Reviewed by Wenson Hsieh.

        * Configurations/Base.xcconfig:
        * Configurations/DebugRelease.xcconfig:
        * wtf/PlatformEnableCocoa.h:
        * wtf/PlatformHave.h:
        * wtf/PlatformUse.h:

2020-08-04  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Use LazyNeverDestroyed & std::call_once for complex singletons
        https://bugs.webkit.org/show_bug.cgi?id=215153
        <rdar://problem/65718983>

        Reviewed by Mark Lam.

        Add lock's bits in crash information to investigate if this speculative fix does not work.

        * wtf/LockAlgorithmInlines.h:
        (WTF::Hooks>::lockSlow):
        (WTF::Hooks>::unlockSlow):

2020-08-04  Keith Miller  <keith_miller@apple.com>

        CheckpointSideState shoud play nicely with StackOverflowException unwinding.
        https://bugs.webkit.org/show_bug.cgi?id=215114

        Reviewed by Saam Barati.

        Add a helper so we can have soft stack bounds.

        * wtf/StackBounds.h:
        (WTF::StackBounds::withSoftOrigin const):

2020-08-04  Fujii Hironori  <Hironori.Fujii@sony.com>

        [MSVC] wtf/Optional.h: error C2280: 'WTF::constexpr_storage_t<T> &WTF::constexpr_storage_t<T>::operator =(const WTF::constexpr_storage_t<T> &)': attempting to reference a deleted function
        https://bugs.webkit.org/show_bug.cgi?id=215003

        Reviewed by Yusuke Suzuki.

        Microsoft reported the upcoming MSVC can't compile
        Optional<std::pair<JSC::SamplingProfiler::StackFrame::CodeLocation,JSC::CodeBlock *>>.

        > wtf/Optional.h(419,39): error C2280: 'WTF::constexpr_storage_t<T> &WTF::constexpr_storage_t<T>::operator =(const WTF::constexpr_storage_t<T> &)': attempting to reference a deleted function

        They suggests using std::is_trivially_copy_assignable_v in
        Optional ctor instead of std::is_trivially_copyable_v.

        * wtf/Optional.h:
        (WTF::Optional::Optional): Replaced std::is_trivially_copyable_v with std::is_trivially_copy_assignable_v.

2020-08-04  Alex Christensen  <achristensen@webkit.org>

        about: scheme URL constants should be backed by StaticStringImpl
        https://bugs.webkit.org/show_bug.cgi?id=215113

        Reviewed by Darin Adler.

        * wtf/URL.cpp:
        (WTF::aboutBlankURL):
        (WTF::aboutSrcDocURL):

2020-08-03  Wenson Hsieh  <wenson_hsieh@apple.com>

        Remove the ENABLE_DATA_INTERACTION feature flag
        https://bugs.webkit.org/show_bug.cgi?id=215091

        Reviewed by Megan Gardner.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:

2020-08-01  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r265097, r265113, and r265122.
        https://bugs.webkit.org/show_bug.cgi?id=215065

        Broke AppleSilicon Big Sur

        Reverted changesets:

        "Strip pointers instead of authing for byteOffset to not allow
        for a possible way to guess data pac"
        https://bugs.webkit.org/show_bug.cgi?id=214952
        https://trac.webkit.org/changeset/265097

        "Compute number of PAC bits from what the OS says its address
        space is"
        https://bugs.webkit.org/show_bug.cgi?id=214986
        https://trac.webkit.org/changeset/265113

        "Remove UB from nonPACBitsMask computation"
        https://bugs.webkit.org/show_bug.cgi?id=214996
        https://trac.webkit.org/changeset/265122

2020-07-30  Simon Fraser  <simon.fraser@apple.com>

        Have TimingScope track the max event duration
        https://bugs.webkit.org/show_bug.cgi?id=215006

        Reviewed by Tim Horton.

        Have TimingScope track and print the longest event, as well as the count and
        mean duration.

        * wtf/TimingScope.cpp:
        (WTF::TimingScope::scopeDidEnd):

2020-07-30  Keith Miller  <keith_miller@apple.com>

        Remove UB from nonPACBitsMask computation
        https://bugs.webkit.org/show_bug.cgi?id=214996

        Reviewed by Tadeu Zagallo.

        For non-ARM64E we now set numberOfPACBits to zero, which was causing UB in our computation of the nonPACBitsMask.

        * wtf/CagedPtr.h:

2020-07-30  Jer Noble  <jer.noble@apple.com>

        [Cocoa] Adopt -[AVContentKeyRequest willOutputBeObscuredDueToInsufficientExternalProtectionForDisplays:]
        https://bugs.webkit.org/show_bug.cgi?id=214659
        <rdar://problem/63555006>

        Reviewed by Darin Adler.
        
        Add a new Observer template class. This allows classes to provide support for listeners without requiring
        those listeners to subclass from a pure-virtual (and CanMakeWeakPtr capable) client class. Instead, clients
        can just create one of these Observer objects, and pass a WeakPtr to that observer to the notifying object.
        When the client object destroys the observer, it is automatically unregistered when the observing object
        uses a WeakHashSet.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Observer.h: Added.
        (WTF::Observer<Out):

2020-07-30  Keith Miller  <keith_miller@apple.com>

        Compute number of PAC bits from what the OS says its address space is
        https://bugs.webkit.org/show_bug.cgi?id=214986

        Reviewed by Saam Barati.

        * wtf/CagedPtr.h:
        * wtf/PtrTag.h:

2020-07-29  Fujii Hironori  <Hironori.Fujii@sony.com>

        [Win Debug] Unreviewed build fix

        > JavaScriptCore/runtime/JSArrayBufferView.cpp(51): error C2660: 'Gigacage::isEnabled': function does not take 0 arguments

        * wtf/Gigacage.h:
        (Gigacage::isEnabled): Added isEnabled taking no argument which was adeed to bmalloc in r249556 (Bug 201521).

2020-07-29  Don Olmstead  <don.olmstead@sony.com>

        Remove USE(ZLIB)
        https://bugs.webkit.org/show_bug.cgi?id=214929

        Reviewed by Darin Adler.

        Remove setting a default value of USE_ZLIB.

        * wtf/PlatformUse.h:

2020-07-28  Karl Rackler  <rackler@apple.com>

        Unreviewed, reverting r264955.

        Reverting because this commit may have caused issues with
        tests.

        Reverted changeset:

        "WebCoreResourceHandleAsOperationQueueDelegate can use
        RunLoop::dispatch"
        https://bugs.webkit.org/show_bug.cgi?id=214771
        https://trac.webkit.org/changeset/264955

2020-07-27  Geoffrey Garen  <ggaren@apple.com>

        WebCoreResourceHandleAsOperationQueueDelegate can use RunLoop::dispatch
        https://bugs.webkit.org/show_bug.cgi?id=214771

        Reviewed by Darin Adler.

        * wtf/cf/RunLoopCF.cpp:
        (WTF::RunLoop::dispatch): Migrated the optimization from
        WebCoreResourceHandleAsOperationQueueDelegate. All Cocoa WebViews begin
        life with a single SchedulePair scheduled in kCFRunLoopCommonModes, so
        this optimization is the common case.

        (Note that I did not copy the kCFRunLoopDefaultMode clause from
        the WebCoreResourceHandleAsOperationQueueDelegate optimization. That's
        because it's not the common case, and also because it's not correct to
        do a vanilla disptach() in the case of kCFRunLoopDefaultMode because a
        vanilla dispatch() would use kCFRunLoopCommonModes.)

2020-07-27  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Disable BIGINT32 optimization temporarily because of SP2 / JS2 regression
        https://bugs.webkit.org/show_bug.cgi?id=214776

        Reviewed by Darin Adler.

        We disable BIGINT32 optimization because it causes 1% regression in JetStream2 and Speedometer2.
        We should enable it after we fix the cause of regression.

        * wtf/PlatformUse.h:

2020-07-27  Carlos Garcia Campos  <cgarcia@igalia.com>

        [WPE][GTK] Add API to support "Privacy Report"
        https://bugs.webkit.org/show_bug.cgi?id=213493

        Reviewed by Adrian Perez de Castro.

        Add support for using GRefPtr with GDateTime.

        * wtf/glib/GRefPtr.cpp:
        (WTF::refGPtr):
        (WTF::derefGPtr):
        * wtf/glib/GRefPtr.h:

2020-07-23  Keith Miller  <keith_miller@apple.com>

        iOS simulator does not support WebAssembly
        https://bugs.webkit.org/show_bug.cgi?id=191064

        Reviewed by Yusuke Suzuki.

        Now that it seems we can JIT in the Simulator we should enable
        WebAssembly there. This just means enabling FTL/B3 so WASM gets
        enabled.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:

2020-07-23  Aditya Keerthi  <akeerthi@apple.com>

        [macOS] Datalist dropdown scrollbar position does not match visible region
        https://bugs.webkit.org/show_bug.cgi?id=214656

        Reviewed by Wenson Hsieh.

        * wtf/PlatformHave.h: Define HAVE_NSTABLEVIEWSTYLE.

2020-07-23  Brady Eidson  <beidson@apple.com>

        Add Gamepad tests that exercise the native frameworks
        <rdar://problem/65343674> and https://bugs.webkit.org/show_bug.cgi?id=214188

        Reviewed by Tim Horton.

        * wtf/PlatformHave.h:

2020-07-23  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r264745.
        https://bugs.webkit.org/show_bug.cgi?id=214681

        Broke 3 web-platform-tests on iOS

        Reverted changeset:

        "iOS simulator does not support WebAssembly"
        https://bugs.webkit.org/show_bug.cgi?id=191064
        https://trac.webkit.org/changeset/264745

2020-07-22  Jer Noble  <jer.noble@apple.com>

        [Cocoa] Add feature flag for WebM & VP9
        https://bugs.webkit.org/show_bug.cgi?id=214672
        <rdar://problem/65959506>

        Reviewed by Beth Dakin.

        * wtf/PlatformEnableCocoa.h:

2020-07-22  Conrad Shultz  <conrad_shultz@apple.com>

        Update macOS Version macros
        https://bugs.webkit.org/show_bug.cgi?id=214653

        Reviewed by Tim Horton.

        * Configurations/Base.xcconfig:
        * Configurations/DebugRelease.xcconfig:
        * wtf/PlatformHave.h:

2020-07-22  Keith Miller  <keith_miller@apple.com>

        iOS simulator does not support WebAssembly
        https://bugs.webkit.org/show_bug.cgi?id=191064

        Reviewed by Yusuke Suzuki.

        Now that it seems we can JIT in the Simulator we should enable
        WebAssembly there. This just means enabling FTL/B3 so WASM gets
        enabled.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:

2020-07-22  Geoffrey Garen  <ggaren@apple.com>

        WTF::Function adoption should be explicit instead of implicit
        https://bugs.webkit.org/show_bug.cgi?id=214654

        Reviewed by Darin Adler.

        * wtf/Function.h:
        (WTF::Function<Out):
        (WTF::adoptImpl): Added an adopt function for Functions and made the
        adopting constructor private.

        * wtf/cf/RunLoopCF.cpp:
        (WTF::RunLoop::dispatch): Use new adopt function.

2020-07-22  Jer Noble  <jer.noble@apple.com>

        Unreviewed build fix after r264710; add a HAVE_AVPLAYER_VIDEORANGEOVERRIDE guard.

        * wtf/PlatformHave.h:

2020-07-22  Geoffrey Garen  <ggaren@apple.com>

        JSRunLoopTimer should use WTF::RunLoop rather than custom CF code
        https://bugs.webkit.org/show_bug.cgi?id=214102

        Unreviewed, re-landing r264242 with crash fixed.

        To support JSC using external locking around a RunLoop timer, we needed
        to avoid modifying unsynchronized timer state while firing.

        * wtf/cf/RunLoopCF.cpp:
        (WTF::RunLoop::TimerBase::start):

2020-07-21  Eric Carlson  <eric.carlson@apple.com>

        Use AVRoutePickerView when available for choosing AirPlay devices
        https://bugs.webkit.org/show_bug.cgi?id=213497
        <rdar://problem/58610662>

        Reviewed by Jer Noble.

        * wtf/PlatformHave.h: Define HAVE_AVROUTEPICKERVIEW.

2020-07-20  Yusuke Suzuki  <ysuzuki@apple.com>

        [ECMA-402] Implement Intl.DisplayNames
        https://bugs.webkit.org/show_bug.cgi?id=209779

        Reviewed by Ross Kirsling.

        * wtf/text/StringView.h:

2020-07-20  Adrian Perez de Castro  <aperez@igalia.com>

        Non unified build fixes, midsummer 2020 edition
        https://bugs.webkit.org/show_bug.cgi?id=213616

        Unreviewed build fix.

        * wtf/text/StringParsingBuffer.h: Add missing inclusion of wtf/text/StringView.h,
        and removed other now-unneeded header inclusions.

2020-07-19  Geoffrey Garen  <ggaren@apple.com>

        There should be only one RunLoop Timer class
        https://bugs.webkit.org/show_bug.cgi?id=214340

        Reviewed by Darin Adler.

        RunLoop::Timer wins. RunLoopTimer loses.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/PlatformHave.h:
        * wtf/PlatformMac.cmake: Remove RunLoopTimer.

        * wtf/RunLoop.cpp:
        (WTF::RunLoop::dispatchAfter): While we're here. let's make dispatchAfter
        available on all platforms. We had cross-platform code, but it was
        factored to be needlessly platform-specific.

        * wtf/RunLoop.h: Added a version of dispatch() that accepts a
        SchedulePairHashSet for Cocoa. Removed some indirection from timer
        stuff, since it was confusing me. Consistently named all time intervals
        "interval".

        * wtf/RunLoopTimer.h: Removed.

        * wtf/cf/RunLoopCF.cpp:
        (WTF::createTimer): Factored out a helper function for dispatch() to use.
        (WTF::RunLoop::dispatch): This function is the meat of the patch. It's
        the only unique functionality that RunLoopTimer used to provide.
        (WTF::RunLoop::TimerBase::start): Adopted helper function.
        (WTF::RunLoop::runForDuration): Deleted.
        (WTF::RunLoop::TimerBase::timerFired): Deleted.

        * wtf/cf/RunLoopTimerCF.cpp: Removed.

        * wtf/generic/RunLoopGeneric.cpp:
        (WTF::RunLoop::dispatchAfter): Deleted. Now cross-platform.

        * wtf/glib/RunLoopGLib.cpp:
        (WTF::RunLoop::TimerBase::updateReadyTime):
        (WTF::RunLoop::TimerBase::start):
        (WTF::RunLoop::TimerBase::stop):
        (WTF::DispatchAfterContext::DispatchAfterContext): Deleted.
        (WTF::DispatchAfterContext::dispatch): Deleted.
        (WTF::RunLoop::dispatchAfter): Deleted. Now cross-platform.

        * wtf/win/RunLoopWin.cpp:
        (WTF::RunLoop::TimerBase::start):
        (WTF::RunLoop::dispatchAfter): Deleted. Now cross-platform.

2020-07-17  Sam Weinig  <weinig@apple.com>

        Remove final vestigates of SimpleColor
        https://bugs.webkit.org/show_bug.cgi?id=214439

        Reviewed by Simon Fraser.

        * wtf/KeyValuePair.h:
        (WTF::KeyValuePair::KeyValuePair):
        Add overload of constructor that is not a template function to aid deduction
        when using std::initializer_lists to contruct a HashMap.

2020-07-17  Fujii Hironori  <Hironori.Fujii@sony.com>

        Don't include <wtf/text/WTFString.h> in SVGParserUtilities.h
        https://bugs.webkit.org/show_bug.cgi?id=214320

        Reviewed by Darin Adler.

        * wtf/Forward.h: Added foward declarations for template specializations of DefaultHash.

2020-07-17  Keith Miller  <keith_miller@apple.com>

        Fix 32-bit debug watchos build
        https://bugs.webkit.org/show_bug.cgi?id=214480

        Reviewed by Michael Saboff.

        subtracting pointers produces a ptrdiff_t but on 32-bit that's the same
        as an int. Since we were comparing that to an unsigned that triggered
        the signed comparison warning, which broke the build.

        * wtf/text/StringParsingBuffer.h:

2020-07-17  Truitt Savell  <tsavell@apple.com>

        Unreviewed, reverting r264482.

        Part of an attempted fix for the build

        Reverted changeset:

        "Use AVRoutePickerView when available for choosing AirPlay
        devices"
        https://bugs.webkit.org/show_bug.cgi?id=213497
        https://trac.webkit.org/changeset/264482

2020-07-16  Xabier Rodriguez Calvar  <calvaris@igalia.com>

        Rename createBoxPtr into adoptBoxPtr
        https://bugs.webkit.org/show_bug.cgi?id=214171

        Reviewed by Darin Adler.

        * wtf/BoxPtr.h:
        (WTF::adoptInBoxPtr):

2020-07-16  Per Arne Vollan  <pvollan@apple.com>

        XPC connection should be suspended before setting target queue
        https://bugs.webkit.org/show_bug.cgi?id=214427

        Reviewed by Darin Adler.

        Declare function to suspend XPC connection.

        * wtf/spi/darwin/XPCSPI.h:

2020-07-16  Fujii Hironori  <Hironori.Fujii@sony.com>

        [WTF] Remove the unnecessary inner class DefaultHash<T>::Hash
        https://bugs.webkit.org/show_bug.cgi?id=214389

        Reviewed by Darin Adler.

        DefaultHash<T> doesn't need to have a inner struct Hash. This can
        be a problem for forward declarations (Bug 214320 Comment 5).

        * wtf/BitVector.h:
        * wtf/Forward.h:
        * wtf/HashFunctions.h:
        (WTF::PairHash::hash):
        (WTF::PairHash::equal):
        (WTF::TupleHash::hash):
        (WTF::TupleHash::equal):
        * wtf/ListHashSet.h:
        * wtf/LoggingHashMap.h:
        * wtf/LoggingHashSet.h:
        * wtf/MetaAllocatorPtr.h:
        * wtf/ObjectIdentifier.h:
        * wtf/OptionSetHash.h:
        (WTF::DefaultHash<OptionSet<T>>::hash):
        (WTF::DefaultHash<OptionSet<T>>::equal):
        (WTF::DefaultHash<OptionSet<T>>::Hash::hash): Deleted.
        (WTF::DefaultHash<OptionSet<T>>::Hash::equal): Deleted.
        * wtf/Packed.h:
        * wtf/RetainPtr.h:
        * wtf/StackShot.h:
        * wtf/URLHash.h:
        * wtf/VectorHash.h:
        (WTF::VectorHash::hash):
        * wtf/text/AtomString.h:
        * wtf/text/AtomStringHash.h:
        * wtf/text/CString.h:
        * wtf/text/StringHash.h:
        * wtf/text/StringImpl.h:
        * wtf/text/SymbolRegistry.h:
        (WTF::DefaultHash<SymbolRegistryKey>::hash):
        (WTF::DefaultHash<SymbolRegistryKey>::equal):
        (WTF::DefaultHash<SymbolRegistryKey>::Hash::hash): Deleted.
        (WTF::DefaultHash<SymbolRegistryKey>::Hash::equal): Deleted.
        * wtf/text/WTFString.h:

2020-07-16  Eric Carlson  <eric.carlson@apple.com>

        Use AVRoutePickerView when available for choosing AirPlay devices
        https://bugs.webkit.org/show_bug.cgi?id=213497
        <rdar://problem/58610662>

        Unreviewed build fix.

        * wtf/PlatformHave.h: Define HAVE_AVROUTEPICKERVIEW.

2020-07-16  Jonathan Bedard  <jbedard@apple.com>

        [Big Sur] De-duplicate SPI
        https://bugs.webkit.org/show_bug.cgi?id=214415
        <rdar://problem/65678060>

        Reviewed by Darin Adler.

        * wtf/PlatformHave.h:

2020-07-16  Jonathan Bedard  <jbedard@apple.com>

        [Big Sur] Build on Seed 1
        https://bugs.webkit.org/show_bug.cgi?id=214396
        <rdar://problem/65644762>

        Reviewed by Tim Horton.

        * wtf/PlatformHave.h: Add HAVE(LARGE_CONTROL_SIZE).

2020-07-15  Saagar Jha  <saagar@saagarjha.com>

        Add some missing boilerplate to help fix build on macOS Big Sur
        https://bugs.webkit.org/show_bug.cgi?id=214338

        Reviewed by Darin Adler.

        * wtf/PlatformHave.h: Add HAVE_LARGE_CONTROL_SIZE and enable it on Big Sur.

2020-07-15  Darin Adler  <darin@apple.com>

        Remove a few more uses of the terms black/white list
        https://bugs.webkit.org/show_bug.cgi?id=214371

        Reviewed by Alex Christensen.

        * wtf/URLHelpers.cpp:
        (WTF::URLHelpers::loadIDNAllowedScriptList): Renamed.
        (WTF::URLHelpers::isLookalikeCharacter): Renamed.
        (WTF::URLHelpers::addScriptToIDNAllowedScriptList): Renamed.
        (WTF::URLHelpers::initializeDefaultIDNAllowedScriptList): Renamed.
        (WTF::URLHelpers::allCharactersInAllowedIDNScriptList): Renamed.
        (WTF::URLHelpers::mapHostName): Updated for name changes.
        * wtf/URLHelpers.h: Renamed things.

        * wtf/cocoa/NSURLExtras.mm:
        (WTF::readIDNAllowedScriptListFile): Renamed.
        (WTF::URLHelpers::loadIDNAllowedScriptList): Renamed. Also use a modern for
        loop to simplify the code.

2020-07-15  Jim Mason  <jmason@ibinx.com>

        [WTF] Fix PackedAlignedPtr for X86_64 canonical addresses
        https://bugs.webkit.org/show_bug.cgi?id=214142

        Reviewed by Mark Lam

        * wtf/Packed.h:
        (WTF::PackedAlignedPtr::get const):
        (WTF::PackedAlignedPtr::set):

2020-07-15  Brady Eidson  <beidson@apple.com>

        Resolve race between IOHIDManager and GameController framework.
        <rdar://problem/65554490> and https://bugs.webkit.org/show_bug.cgi?id=214245

        Reviewed by Tim Horton.

        * wtf/PlatformHave.h:

2020-07-14  Alex Christensen  <achristensen@webkit.org>

        REGRESSION(r262341) URL::createCFURL should produce a CFURL that uses UTF-8 to decode its percent-encoded sequences
        https://bugs.webkit.org/show_bug.cgi?id=214314
        <rdar://problem/65079249>

        Reviewed by Darin Adler.

        r262341 made it so we usually pass kCFStringEncodingISOLatin1 into CFURLCreateAbsoluteURLWithBytes when creating a CFURLRef from a WTF::URL.
        This is correct for the interpretation of the bytes to create a CFStringRef, and that is a change we want to make.
        The encoding, however, is also stored with the CFURL and used later when interpreting percent-encoded sequences.
        We want to use kCFStringEncodingUTF8 to make the interpretation of percent-encoded sequences the same as it used to be.
        To avoid making a separate CString most of the time, use characters8() only for ASCII-only URLs, where UTF-8 and Latin1 are the same.
        For all other URLs, we have to make a CString containing the UTF-8 representation of the string to get the percent-encoded sequences interpreted the same.

        * wtf/cf/URLCF.cpp:
        (WTF::URL::createCFURL const):
        * wtf/cocoa/URLCocoa.mm:
        (WTF::URL::createCFURL const):

2020-07-14  Jer Noble  <jer.noble@apple.com>

        Add support for parsing VP-style codec strings.
        https://bugs.webkit.org/show_bug.cgi?id=214270
        <rdar://problem/65500048>

        Reviewed by Eric Carlson.

        Add a variant of toIntegralType<> which returns an Optional. Since no existing callers of the
        original toIntegralType fail to pass in the optional bool* parameter, make that parameter
        non-optional, as it causes a conflict with the new Optional-returning version.

        * wtf/text/StringToIntegerConversion.h:
        (WTF::toIntegralType):

2020-07-13  Keith Miller  <keith_miller@apple.com>

        Clean up SourceProvider and add caller relative load script to jsc.cpp
        https://bugs.webkit.org/show_bug.cgi?id=214205

        Reviewed by Yusuke Suzuki.

        Using a URL as a boolean in a conditional should be a compile
        error.  Currently, it "works" because it actually calls `operator
        NSURL*()`... which is likely NOT what you wanted. Until we decide
        what it means to have a URL in a conditional it will be a compile
        error.

        * wtf/URL.cpp:
        (WTF::URL::fileSystemPath const):
        * wtf/URL.h:

2020-07-12  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] String.protoytpe.toLocaleLowerCase's availableLocales HashSet is inefficient
        https://bugs.webkit.org/show_bug.cgi?id=213158

        Reviewed by Darin Adler.

        Add characterAt method to ASCIILiteral.

        * wtf/text/ASCIILiteral.h:

2020-07-12  Darin Adler  <darin@apple.com>

        Some further streamlining of Gradient handling code
        https://bugs.webkit.org/show_bug.cgi?id=214239

        Reviewed by Sam Weinig.

        * wtf/Vector.h: Added an overload for insert analogous to the ones we already have
        for append and uncheckedAppend, helpful for type deduction.

2020-07-12  Said Abou-Hallawa  <sabouhallawa@apple.com>

        [macOS]: A HEIF image, selected from the OpenPanel, should be converted to an accepted MIME type
        https://bugs.webkit.org/show_bug.cgi?id=213347
        <rdar://problem/57258464>

        Reviewed by Darin Adler.

        Allow a suffix to be included in the temporary file name. The goal is to
        make it possible to create temporary image files with valid extensions.

        * wtf/FileSystem.h:
        (WTF::FileSystemImpl::openTemporaryFile):
        * wtf/cocoa/FileSystemCocoa.mm:
        (WTF::FileSystemImpl::openTemporaryFile):
        * wtf/glib/FileSystemGlib.cpp:
        (WTF::FileSystemImpl::openTemporaryFile):
        * wtf/posix/FileSystemPOSIX.cpp:
        (WTF::FileSystemImpl::openTemporaryFile):
        * wtf/win/FileSystemWin.cpp:
        (WTF::FileSystemImpl::openTemporaryFile):

2020-07-12  Rob Buis  <rbuis@igalia.com>

        Improve IPv6 detection when setting host/hostname
        https://bugs.webkit.org/show_bug.cgi?id=214218

        Reviewed by Darin Adler.

        * wtf/URL.cpp:
        (WTF::URL::setHost): do not bail out if ':' was found but we start
        with a '[', since the host may be IPv6.
        (WTF::URL::setHostAndPort): multiple colons are acceptable only in case of IPv6.

2020-07-11  Sam Weinig  <weinig@apple.com> and Yusuke Suzuki  <ysuzuki@apple.com>

        Relanding "Make hasher work with tuple-like classes"
        https://bugs.webkit.org/show_bug.cgi?id=214224

        Reviewed by Darin Adler.

        The original patch broke the internal build. And reverting patch (r264274) broke the build too.
        This patch relands r264270 with `constexpr` => `inline constexpr` template variable fix.

        * wtf/Hasher.h:
        (WTF::add):
        (WTF::addTupleLikeHelper):
        (WTF::TypeCheckHelper<decltype): Deleted.
        (WTF::addTupleHelper): Deleted.
        Add support for tuple-like classes. These are classes that:
        - Have defined specializations of std::tuple_size<> and std::tuple_element<>.
        - And have either a member function named get<> or there exists a function get<>()
          that takes the class as argument that can be looked up via ADL.

        To avoid abiguity when hashing std::array, the add() overload enabled for containers
        with a begin member functions also now checks that the container is not tuple-like.
        The std::pair overload is no longer needed as it will use the tuple-like one now.

        * wtf/OptionSet.h:
        * wtf/StdLibExtras.h:
        Move is_type_complete_v<> from OptionSet.h to StdLibExtras.h and rename to
        adhere to WebKit style as IsTypeComplete<>.

2020-07-11  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r264270.
        https://bugs.webkit.org/show_bug.cgi?id=214228

        Broke the build

        Reverted changeset:

        "Make hasher work with tuple-like classes"
        https://bugs.webkit.org/show_bug.cgi?id=214224
        https://trac.webkit.org/changeset/264270

2020-07-11  Darin Adler  <darin@apple.com>

        Remove live ranges from AccessibilityObject.h, AccessibilityObjectInterface.h, AccessibilityRenderObject.h, AXIsolatedObject.h
        https://bugs.webkit.org/show_bug.cgi?id=214215

        Reviewed by Sam Weinig.

        * wtf/cocoa/VectorCocoa.h: Added a new makeVector that takes a function.
        Also updated createNSArray to use std::invoke.

2020-07-11  Sam Weinig  <weinig@apple.com>

        Make hasher work with tuple-like classes
        https://bugs.webkit.org/show_bug.cgi?id=214224

        Reviewed by Darin Adler.

        * wtf/Hasher.h:
        (WTF::add):
        (WTF::addTupleLikeHelper):
        (WTF::TypeCheckHelper<decltype): Deleted.
        (WTF::addTupleHelper): Deleted.
        Add support for tuple-like classes. These are classes that:
        - Have defined specializations of std::tuple_size<> and std::tuple_element<>.
        - And have either a member function named get<> or there exists a function get<>()
          that takes the class as argument that can be looked up via ADL.

        To avoid abiguity when hashing std::array, the add() overload enabled for containers
        with a begin member functions also now checks that the container is not tuple-like.
        The std::pair overload is no longer needed as it will use the tuple-like one now.

        * wtf/OptionSet.h:
        * wtf/StdLibExtras.h:
        Move is_type_complete_v<> from OptionSet.h to StdLibExtras.h and rename to
        adhere to WebKit style as IsTypeComplete<>.

2020-07-10  Brady Eidson  <beidson@apple.com>

        GameController.framework gamepads should support Home buttons.
        <rdar://problem/63500696> and https://bugs.webkit.org/show_bug.cgi?id=212933

        Reviewed by Tim Horton.

        * wtf/PlatformHave.h:

2020-07-10  Xabier Rodriguez Calvar  <calvaris@igalia.com>

        [GStreamer][EME][OpenCDM] Implement OpenCDM support
        https://bugs.webkit.org/show_bug.cgi?id=213550

        Reviewed by Philippe Normand.

        * wtf/PlatformEnable.h: Disable OPENCDM by default.

2020-07-09  Xabier Rodriguez Calvar  <calvaris@igalia.com>

        Simplify BoxPtr::create
        https://bugs.webkit.org/show_bug.cgi?id=214144

        Reviewed by Darin Adler.

        * wtf/BoxPtr.h:
        (WTF::createBoxPtr): Use the alias instead of the unrolled type.

2020-07-09  Per Arne Vollan  <pvollan@apple.com>

        [Cocoa] Update Launch Services database in the WebContent process from the Network process
        https://bugs.webkit.org/show_bug.cgi?id=213794

        Reviewed by Brent Fulgham.

        Added HAVE define for determining if the class LSDatabaseContext is present.

        * wtf/PlatformHave.h:

2020-07-09  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r264148.
        https://bugs.webkit.org/show_bug.cgi?id=214136

        Introduced layout test failures

        Reverted changeset:

        "[Cocoa] Update Launch Services database in the WebContent
        process from the Network process"
        https://bugs.webkit.org/show_bug.cgi?id=213794
        https://trac.webkit.org/changeset/264148

2020-07-09  Xabier Rodriguez Calvar  <calvaris@igalia.com>

        [WTF] Implement new BoxPtr alias
        https://bugs.webkit.org/show_bug.cgi?id=212379

        Reviewed by Darin Adler.

        Added BoxPtr.h that includes BoxPtr<T> as alias of
        Box<std::unique_ptr<T>>. We discussed about this class on bugzilla
        and we agreed on this alias being the best idea. Apart from the
        alias I'm adding a couple of helpers like a create function and
        the operator== and operator!=.

        Tests: BoxPtr API tests added.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/BoxPtr.h: Added.
        (WTF::createBoxPtr):
        (WTF::operator==):
        (WTF::operator!=):
        * wtf/CMakeLists.txt:

2020-07-08  Per Arne Vollan  <pvollan@apple.com>

        [Cocoa] Update Launch Services database in the WebContent process from the Network process
        https://bugs.webkit.org/show_bug.cgi?id=213794

        Reviewed by Brent Fulgham.

        Added HAVE define for determining if the class LSDatabaseContext is present.

        * wtf/PlatformHave.h:

2020-07-08  Per Arne Vollan  <pvollan@apple.com>

        [Cocoa] Make it possible to establish direct XPC connections between WebKit processes
        https://bugs.webkit.org/show_bug.cgi?id=214079

        Reviewed by Brent Fulgham.

        Declare function to create a xpc endpoint, as well as a function to create a connection from an endpoint.

        * wtf/spi/darwin/XPCSPI.h:

2020-07-08  Geoffrey Garen  <ggaren@apple.com>

        dyld: Symbol not found: __ZN3WTF19initializeThreadingEv - webkit MacOSX
        https://bugs.webkit.org/show_bug.cgi?id=214034

        Reviewed by Mark Lam.

        * wtf/Threading.cpp:
        (WTF::initializeThreading): Export the old symbol name for compatibility.

2020-07-07  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] WebProcess hangs when browsing GitHub
        https://bugs.webkit.org/show_bug.cgi?id=213970

        Reviewed by Sergio Villar Senin.

        Use a lower priority for LayerFlushTimer and DisplayRefreshMonitorTimer. We were using a very high priority for
        drawing with the idea of keeping a good rendering performance without being affected by other timers. The
        problem is that animations can be controlled by timers, so we need to ensure that MainThreadSharedTimer has
        higher priority than drawing.

        * wtf/glib/RunLoopSourcePriority.h: Use 110 for LayerFlushTimer and DisplayRefreshMonitorTimer.

2020-07-06  Geoffrey Garen  <ggaren@apple.com>

        callOnMainThread should use the same queue as RunLoop::dispatch
        https://bugs.webkit.org/show_bug.cgi?id=213830

        Reviewed by Brady Eidson.

        This should reduce flakiness in scheduled tasks.

        There's no need to keep a separate queue anymore since both APIs have
        the same semantics now.

        * wtf/MainThread.cpp:
        (WTF::callOnMainThread):
        (WTF::functionQueue): Deleted.
        (WTF::dispatchFunctionsFromMainThread): Deleted.
        * wtf/MainThread.h:
        * wtf/cocoa/MainThreadCocoa.mm:
        (WTF::scheduleDispatchFunctionsOnMainThread): Deleted.
        * wtf/generic/MainThreadGeneric.cpp:
        (WTF::scheduleDispatchFunctionsOnMainThread): Deleted.
        * wtf/win/MainThreadWin.cpp:
        (WTF::scheduleDispatchFunctionsOnMainThread): Deleted.

2020-07-06  Michael Catanzaro  <mcatanzaro@gnome.org>

        Spams system logs with "Current memory footprint: 10 MB"
        https://bugs.webkit.org/show_bug.cgi?id=213991

        Reviewed by Darin Adler.

        This particular log statement is too much spam in the system journal, since it prints
        continuously under normal operating conditions. Let's limit it only to Apple platforms,
        which have had RELEASE_LOG() for a long time and where this is presumably expected.

        * wtf/MemoryPressureHandler.cpp:
        (WTF::MemoryPressureHandler::measurementTimerFired):

2020-07-06  Sam Weinig  <weinig@apple.com>

        Compile-time enable (but leave disabled at runtime by default) date/time input types on macOS to allow testing of cross platform (e.g. DOM) aspects of the controls
        https://bugs.webkit.org/show_bug.cgi?id=213949

        Reviewed by Darin Adler.

        * wtf/PlatformEnableCocoa.h:
        Enable building date/time input types on all Cocoa ports. 

2020-07-06  Geoffrey Garen  <ggaren@apple.com>

        RunLoop::dispatch should only call wakeUp when needed
        https://bugs.webkit.org/show_bug.cgi?id=213705

        Reviewed by Brady Eidson.

        RunLoop::wakeUp is super expensive (at least on Darwin platforms). Back
        when IndexedDB used RunLoop::dispatch, RunLoop::wakeUp accounted for 15%
        of all database lookup time.

        We can reduce the cost a bit by only scheduling a wakeUp when the queue
        is empty.

        * wtf/RunLoop.cpp:
        (WTF::RunLoop::performWork): Take all the functions out of the pending
        queue before we start executing them; that way, we can tell if a new
        function has been added to the pending queue since we enetered
        performWork.

        (WTF::RunLoop::dispatch): Only call wakeUp if we need to.

        * wtf/RunLoop.h:

2020-07-04  Darin Adler  <darin@apple.com>

        [Cocoa] Add almost everything from FeatureDefines.xcconfig to PlatformEnableCocoa.h
        https://bugs.webkit.org/show_bug.cgi?id=213964

        Reviewed by Sam Weinig.

        Added logic that matches what FeatureDefines.xcconfig does for everything
        except for ENABLE_EXPERIMENTAL_FEATURES.

        Changed format so we mostly list platforms where we do not want to enable
        a certain feature; also order it pretty consistently macOS, iOS, Mac Catalyst,
        watchOS, then tvOS. This format highlights possible mistakes when not enabling
        a feature on some platforms in an easier to understand way.

        * wtf/PlatformEnableCocoa.h:
        (ENABLE_AIRPLAY_PICKER): List platforms that do *not* enable this.
        (ENABLE_APPLE_PAY): All except Mac Catalyst, watchOS, tvOS.
        Not sure why disabled in Mac Catalyst, but replicates FeatureDefines.xcconfig.
        (ENABLE_APPLE_PAY_REMOTE_UI): List platforms that do *not* enable this.
        (ENABLE_AUTOCAPITALIZE): List platforms that do *not* enable this.
        (ENABLE_AUTOCORRECT): List platforms that do *not* enable this.
        (ENABLE_CONTENT_FILTERING): All except older watchOS simulator and tvOS.
        (ENABLE_CORE_IMAGE_ACCELERATED_FILTER_RENDER): Re-sorted this.
        (ENABLE_CSS_CONIC_GRADIENTS): All except older macOS and tvOS. The tvOS
        exception seems questionable, so added a FIXME.
        (ENABLE_DARK_MODE_CSS): All except watchOS and tvOS.
        (ENABLE_DATA_INTERACTION): All except macOS, watchOS, and tvOS.
        (ENABLE_DATA_DETECTION): All except Mac Catalyst, watchOS, and tvOS.
        (ENABLE_EDITABLE_REGION): Only iOS.
        (ENABLE_ENCRYPTED_MEDIA): All except older macOS and Mac Catalyst.
        (ENABLE_FULLSCREEN_API): All except Mac Catalyst, watchOS, and tvOS.
        (ENABLE_FULL_KEYBOARD_ACCESS): All except Mac Catalyst, watchOS, and tvOS.
        (ENABLE_GAMEPAD): All except watchOS.
        (ENABLE_INPUT_TYPE_DATE): All except macOS, Mac Catalyst, and tvOS.
        (ENABLE_INPUT_TYPE_DATETIMELOCAL): Ditto.
        (ENABLE_INPUT_TYPE_MONTH): Ditto.
        (ENABLE_INPUT_TYPE_TIME): Ditto.
        (ENABLE_INPUT_TYPE_WEEK): Ditto.
        (ENABLE_MEDIA_CAPTURE): All except macOS.
        (ENABLE_MEDIA_SOURCE): All except Mac Catalyst, watchOS, tvOS, and
        all simulators.
        (ENABLE_MEDIA_STREAM): All except Mac Catalyst, watchOS, and tvOS.
        (ENABLE_NAVIGATOR_STANDALONE): All iOS family. (Considered writing as
        all except macOS, but left like this to match some .cpp code for now.)
        (ENABLE_OVERFLOW_SCROLLING_TOUCH): All iOS family.
        (ENABLE_PICTURE_IN_PICTURE_API): All except Mac Catalyst, watchOS, and tvOS.
        (ENABLE_SPEECH_SYNTHESIS): All except Mac Catalyst.
        (ENABLE_REVEAL): All except older macOS, watchOS, and tvOS.
        (ENABLE_SIGILL_CRASH_ANALYZER): All except macOS and watchOS.
        (ENABLE_TAKE_UNBOUNDED_NETWORKING_ASSERTION): All except macOS, watchOS, and tvOS.
        (ENABLE_VIDEO_PRESENTATION_MODE): All except simulators and tvOS.
        (ENABLE_WEBGPU): All except older macOS, Mac Catalyst, and simulators.
        (ENABLE_WEB_API_STATISTICS): Re-sorted this.
        (ENABLE_WEB_AUTHN): All except Mac Catalyst, watchOS, and tvOS.
        (ENABLE_WEB_RTC): All except Mac Catalyst, watchOS, and tvOS.

2020-07-04  Darin Adler  <darin@apple.com>

        [Cocoa] Remove all features from FeatureDefines.xcconfig that are already mentioned in PlatformEnableCocoa.h
        https://bugs.webkit.org/show_bug.cgi?id=213962

        Reviewed by Sam Weinig.

        * wtf/PlatformEnableCocoa.h:
        (ENABLE_DRAG_SUPPORT): Before, this was enabled for iOS, iOS simulator, and Mac Catalyst in the
        FeatureDefines.xcconfig file, but then disabled for any other iOS family platform here, then enabled
        by default in PlatformEnable.h, which covered Mac. Instead, disable here only for watchOS and tvOS,
        which gives the same result in a more straightforward way.
        (ENABLE_GEOLOCATION): Before, this was enabled for iOS, iOS simulator, Mac Catalyst, and Mac in the
        FeatureDefines.xcconfig file, then enabled for any other iOS family platform here. Instead, just
        enable here for all Cocoa platforms, which gives the same result in a more straightforward way.

2020-07-03  Darin Adler  <darin@apple.com>

        Make generate-unified-sources.sh not depend on features being listed in FEATURE_DEFINES environment variable
        https://bugs.webkit.org/show_bug.cgi?id=212420

        Reviewed by Don Olmstead.

        * Scripts/generate-unified-source-bundles.rb: Removed the --feature-flags
        command line option along with the code that implements it.

2020-07-03  Sam Weinig  <weinig@apple.com>

        Remove support for ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE
        https://bugs.webkit.org/show_bug.cgi?id=213932

        Reviewed by Darin Adler.

        Removes support for non-standard <input type="datetime">, currently being 
        guarded by the macro ENABLE_INPUT_TYPE_DATETIME_INCOMPLETE. This macro, was
        added back in 2013 as a temporary measure to support some engines who shipped
        support for <input type="datetime">. It is currently not enabled for any
        ports so now seems like as good a time as any to remove it.

        * wtf/PlatformEnable.h:

2020-07-03  Sam Weinig  <weinig@apple.com>

        Add "-Wliteral-conversion" warning to Xcode based builds and fix the issues it finds
        https://bugs.webkit.org/show_bug.cgi?id=213931

        Reviewed by Darin Adler.

        * Configurations/Base.xcconfig:
        Add -Wliteral-conversion.

2020-07-03  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r263882.
        https://bugs.webkit.org/show_bug.cgi?id=213933

        Broke the build

        Reverted changeset:

        "Make _WKWebsiteDataStoreConfiguration SPI for HSTS storage to
        replace _WKProcessPoolConfiguration.hstsStorageDirectory"
        https://bugs.webkit.org/show_bug.cgi?id=213048
        https://trac.webkit.org/changeset/263882

2020-07-02  Alex Christensen  <achristensen@webkit.org>

        Make _WKWebsiteDataStoreConfiguration SPI for HSTS storage to replace _WKProcessPoolConfiguration.hstsStorageDirectory
        https://bugs.webkit.org/show_bug.cgi?id=213048

        Reviewed by Youenn Fablet.

        * wtf/PlatformHave.h:

2020-07-02  Alex Christensen  <achristensen@webkit.org>

        Add testing infrastructure and SPI declaration for HTTP/2 ping
        https://bugs.webkit.org/show_bug.cgi?id=213913

        Reviewed by Jer Noble.

        This is work towards rdar://problem/64495827

        * wtf/PlatformHave.h:

2020-07-01  Tim Horton  <timothy_horton@apple.com>

        Upstream application accent color support
        https://bugs.webkit.org/show_bug.cgi?id=213859

        Reviewed by Wenson Hsieh.

        * wtf/PlatformHave.h:

2020-07-01  Alexey Shvayka  <shvaikalesh@gmail.com>

        Use more efficient makeString() instead of StringBuilder
        https://bugs.webkit.org/show_bug.cgi?id=213708

        Reviewed by Sam Weinig.

        Introduces StringTypeAdapter<std::tuple> overload, which enables using
        makeString() instead of StringBuilder in more cases.

        * wtf/text/StringConcatenate.h:
        (WTF::StringTypeAdapter<std::tuple<StringTypes...>, void>): Added.

2020-06-30  Geoffrey Garen  <ggaren@apple.com>

        [Cocoa] [GTK] RunLoop::Timer::isActive() is incorrect for timers while they are firing
        https://bugs.webkit.org/show_bug.cgi?id=213771

        Reviewed by Darin Adler.

        I noticed this because it triggered an assertion failure in
        BackgroundProcessResponsivenessTimer::scheduleNextResponsivenessCheck().

        In WebKit timer parlance "isActive()" means "will fire again", so a
        one-shot timer should report inactive right when it fires. Otherwise,
        there's no way to check if it needs to be rescheduled.

        * wtf/cf/RunLoopCF.cpp:
        (WTF::RunLoop::TimerBase::timerFired): For one-shot timers, stop our
        timer before it fires, so that we know it is not active.

        * wtf/glib/RunLoopGLib.cpp:
        (WTF::RunLoop::TimerBase::TimerBase): For repeating timers, reschedule
        our timer before it fires, so that we know it is active.

2020-06-30  Mark Lam  <mark.lam@apple.com>

        Add handling for a case of OOME in CSSTokenizer and CSSParser.
        https://bugs.webkit.org/show_bug.cgi?id=213702
        <rdar://problem/64808889>

        Reviewed by Darin Adler.

        1. Added FailureAction so that we can parameterize how we want to handle failures.
           In this patch, we're only using this for allocation failures, but we could
           technically apply this to other types of failures as well.

        2. Apply FailureAction to many methods in Vector (and its super classes) so that
           we can start de-duplicating code.  Previously, we were always duplicating code
           just to have a "try" version of the same method that reports the failure to
           allocate instead of crashing.  We can now parameterize all these methods on a
           FailureAction template parameter instead, and avoid the code duplication.
           This patch also reverses some of the existing code duplication.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/FailureAction.h: Added.
        * wtf/Vector.h:
        (WTF::VectorBufferBase::allocateBuffer):
        (WTF::VectorBufferBase::tryAllocateBuffer):
        (WTF::VectorBuffer::allocateBuffer):
        (WTF::VectorBuffer::tryAllocateBuffer):
        (WTF::Vector::reserveCapacity):
        (WTF::Vector::tryReserveCapacity):
        (WTF::Vector::reserveInitialCapacity):
        (WTF::Vector::tryReserveInitialCapacity):
        (WTF::Vector::append):
        (WTF::Vector::tryAppend):
        (WTF::Vector::constructAndAppend):
        (WTF::Vector::tryConstructAndAppend):
        (WTF::Vector::expandCapacity):
        (WTF::Vector::resize):
        (WTF::Vector::grow):
        (WTF::Vector::reserveCapacity):
        (WTF::Vector::reserveInitialCapacity):
        (WTF::Vector::append):
        (WTF::Vector::constructAndAppend):
        (WTF::Vector::appendSlowCase):
        (WTF::Vector::constructAndAppendSlowCase):
        (WTF::Vector::appendVector):
        (WTF::Vector::insert):
        (WTF::Vector::tryExpandCapacity): Deleted.
        (WTF::Vector::tryReserveCapacity): Deleted.
        (WTF::Vector::tryAppend): Deleted.
        (WTF::Vector::tryConstructAndAppend): Deleted.
        (WTF::Vector::tryConstructAndAppendSlowCase): Deleted.

2020-06-30  Peng Liu  <peng.liu6@apple.com>

        Enable the support of FULLSCREEN_API in WebKitTestRunner
        https://bugs.webkit.org/show_bug.cgi?id=213774

        Reviewed by Youenn Fablet.

        Replace the definition of ENABLE_FULLSCREEN_API in FeatureDefines.xcconfig with
        the one in PlatformEnableCocoa.h. We have to do that because WebKitTestRunner
        does not have a FeatureDefines.xcconfig but it uses "ENABLE(FULLSCREEN_API)"
        to conditionally compile code to test the element fullscreen API.
        WebKitTestRunner can use the macro defined in PlatformEnableCocoa.h.

        * wtf/PlatformEnableCocoa.h:

2020-06-30  Alex Christensen  <achristensen@webkit.org>

        Remove WTF::MD5
        https://bugs.webkit.org/show_bug.cgi?id=213766

        Reviewed by Youenn Fablet.

        It was only used for CURL's cache file name generation.
        If you want to use a broken hash function, use SHA1.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/MD5.cpp: Removed.
        * wtf/MD5.h: Removed.

2020-06-30  Andy Estes  <aestes@apple.com>

        [Xcode] Enable the "My Mac (Mac Catalyst)" destination in WebKit Xcode projects
        https://bugs.webkit.org/show_bug.cgi?id=213740

        Reviewed by Darin Adler.

        * Configurations/Base.xcconfig: Set SUPPORTS_MACCATALYST to YES to tell Xcode that this
        project supports building for Mac Catalyst.

2020-06-30  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r263724.
        https://bugs.webkit.org/show_bug.cgi?id=213781


        Reverted changeset:

        "Make _WKWebsiteDataStoreConfiguration SPI for HSTS storage to
        replace _WKProcessPoolConfiguration.hstsStorageDirectory"
        https://bugs.webkit.org/show_bug.cgi?id=213048
        https://trac.webkit.org/changeset/263724

2020-06-29  Geoffrey Garen  <ggaren@apple.com>

        Unreviewed, rolling out an accidental change from r263723.

        * wtf/cf/RunLoopCF.cpp:
        (WTF::RunLoop::TimerBase::timerFired):

2020-06-29  Alex Christensen  <achristensen@webkit.org>

        Make _WKWebsiteDataStoreConfiguration SPI for HSTS storage to replace _WKProcessPoolConfiguration.hstsStorageDirectory
        https://bugs.webkit.org/show_bug.cgi?id=213048

        Reviewed by Youenn Fablet.

        * wtf/PlatformHave.h:

2020-06-29  Geoffrey Garen  <ggaren@apple.com>

        [GTK] [Win] Build callOnMainThread on WTF::RunLoop rather than on a timer
        https://bugs.webkit.org/show_bug.cgi?id=213694

        Reviewed by Carlos Garcia Campos.

        As of https://bugs.webkit.org/show_bug.cgi?id=213063, Darwin platforms
        use the RunLoop. Let's match them for consistency, and to delete some
        code.

        * wtf/generic/MainThreadGeneric.cpp:
        (WTF::scheduleDispatchFunctionsOnMainThread):
        (WTF::MainThreadDispatcher::MainThreadDispatcher): Deleted.
        (WTF::MainThreadDispatcher::schedule): Deleted.
        (WTF::MainThreadDispatcher::fired): Deleted.
        * wtf/glib/RunLoopSourcePriority.h:
        * wtf/win/MainThreadWin.cpp:
        (WTF::initializeMainThreadPlatform):
        (WTF::scheduleDispatchFunctionsOnMainThread):
        (WTF::ThreadingWindowWndProc): Deleted.

2020-06-29  Guowei Yang  <guowei_yang@apple.com>

        Adding Experimental Feature Flags for CoreImage backed SVG/CSS Filters
        https://bugs.webkit.org/show_bug.cgi?id=213578

        Reviewed by Darin Adler, Simon Fraser, Myles C. Maxfield.

        Preparing to implement CoreImage backed filter rendering
        Needs Compiler guards and experimental feature guard.

        * wtf/PlatformEnableCocoa.h: Added definition of a feature flag, 
          ENABLE_CORE_IMAGE_ACCELERATED_FILTER_RENDER
        * wtf/PlatformUse.h:  Added compiler guard #define USE_CORE_IMAGE 1
          to indicate whether CoreImage code is visible to the compiler

2020-06-29  Tetsuharu Ohzeki  <tetsuharu.ohzeki@gmail.com>

        Remove ENABLE_STREAMS_API compilation flag
        https://bugs.webkit.org/show_bug.cgi?id=213728

        Reviewed by Sam Weinig.

        * wtf/PlatformEnable.h:

2020-06-29  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] Add more StringView / ASCIILiteral helper functions and add ICUDeleter
        https://bugs.webkit.org/show_bug.cgi?id=209774

        Reviewed by Ross Kirsling and Darin Adler.

        Add ICUDeleter for cleaner ICU object deletion.
        Add ICU::majorVersion and ICU::minorVersion to switch the skeleton string in Intl.NumberFormat.
        Add more features for ASCIILiteral.

        This patch is part of https://bugs.webkit.org/show_bug.cgi?id=209774. I land it separately from
        Intl.NumberFormat change to unlock the further Intl implementations using ICUDeleter.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/text/ASCIILiteral.h:
        * wtf/text/StringView.cpp:
        (WTF::codePointCompare):
        * wtf/text/StringView.h:
        (WTF::StringView::StringView):
        * wtf/unicode/icu/ICUHelpers.cpp: Copied from Source/WTF/wtf/text/ASCIILiteral.h.
        (WTF::ICU::version):
        (WTF::ICU::majorVersion):
        (WTF::ICU::minorVersion):
        * wtf/unicode/icu/ICUHelpers.h:
        (WTF::ICUDeleter::operator()):

2020-06-28  Geoffrey Garen  <ggaren@apple.com>

        Rename initializeThreading to initialize
        https://bugs.webkit.org/show_bug.cgi?id=213674

        Reviewed by Mark Lam.

        Reasons:

        (1) You need to call it even if you don't use threads.

        (2) It initializes things unrelated to threads (like the PRNG).

        (3) People seem to get confused about the relationship between
        initializeThreading() and initializeMainThread(), and sometimes think
        initializeThreading() is a superset. The opposite is true! I think the
        confusion may come from "threading" being read as "all threading".

        Some filenames still use the legacy name. We can fix that in post.

        * benchmarks/ConditionSpeedTest.cpp:
        (main):
        * benchmarks/HashSetDFGReplay.cpp:
        (main):
        * benchmarks/LockFairnessTest.cpp:
        (main):
        * benchmarks/LockSpeedTest.cpp:
        (main):
        * wtf/MainThread.cpp:
        (WTF::initializeMainThread):
        * wtf/Threading.cpp:
        (WTF::Thread::create):
        (WTF::initialize):
        (WTF::initializeThreading): Deleted.
        * wtf/Threading.h:
        (WTF::Thread::current):

2020-06-27  Sam Weinig  <weinig@apple.com>

        Improve assertions in StringParsingBuffer 
        https://bugs.webkit.org/show_bug.cgi?id=213633

        Reviewed by Darin Adler.

        * wtf/text/StringParsingBuffer.h:
        Address additional feedback and improve the assertions by making them more
        clear and avoid potential overflows.

2020-06-26  Geoffrey Garen  <ggaren@apple.com>

        Re-land r262863
        https://bugs.webkit.org/show_bug.cgi?id=213654

        Reviewed by Tadeu Zagallo.

        r263575 should fix the crash we saw.

        * wtf/cocoa/MainThreadCocoa.mm:
        (WTF::initializeMainThreadPlatform):
        (WTF::scheduleDispatchFunctionsOnMainThread):
        (-[JSWTFMainThreadCaller call]): Deleted.

2020-06-26  Geoffrey Garen  <ggaren@apple.com>

        Initializing the main thread should initialize the main run loop
        https://bugs.webkit.org/show_bug.cgi?id=213637

        Reviewed by Anders Carlsson.

        Previously, some code initialized one, some the other, and some both;
        and some code tried to initialize more than once; and some code tried
        to initialize in ways that would crash but luckily got pre-empted by
        other code that had already initialized.

        In addition to general confusion, this setup made it subtly high stakes
        to call certain functions, like callOnMainThread or
        RunLoop::main().dispatch(), because they might crash if the right
        initialization had not been performed.

        Let's fix that.

        * wtf/MainThread.cpp:
        (WTF::initializeMainThread): Removed defunct comment about
        initializeMainThreadToProcessMainThread. Shrank scope of initializeKey.
        * wtf/RunLoop.cpp:
        (WTF::RunLoop::initializeMain): Don't call initializeMainThread anymore
        because it calls us now. No need for a store fence since we run on the
        main thread and we don't store anything.
        (WTF::RunLoop::initializeWeb): Upgrade to RELEASE_ASSERT.
        * wtf/RunLoop.h: Removed incorrect comment. (Fascinating to wonder when
        it became incorrect.)

2020-06-25  Sam Weinig  <weinig@apple.com>

        Add a new templated string type to help write more idiomatic parsing code
        https://bugs.webkit.org/show_bug.cgi?id=213588

        Reviewed by Darin Adler.
        
        Introduce StringParsingBuffer<CharType>, a new class in the String class family
        designed to be used by parsing code. It's designed to be used with the helper
        function, readCharactersForParsing, and for the user to write the parsing code
        in a way that will work for both latin1 and UTF-16 inputs. Most usage will likely
        follow something like the following form
        
        {
            ...
            auto parsedResult = readCharactersForParsing(stringishObjectToParse, [](auto parsingBuffer) {
                while (parsingBuffer.hasCharactersRemaining()) {
                    if (*parsingBuffer == foo) {
                        ...
                    }
                }

                ...

                return parsedResult
            });
            ...
        }

        API tests added.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        Add StringParsingBuffer.h

        * wtf/Forward.h:
        Forward declare StringParsingBuffer.

        * wtf/text/StringParsingBuffer.h: 
        Added.

2020-06-25  Tadeu Zagallo  <tzagallo@apple.com>

        WTF::callOnMainThread should not require the main runloop to be initialized
        https://bugs.webkit.org/show_bug.cgi?id=213612
        <rdar://problem/64446028>

        Reviewed by Yusuke Suzuki.

        When using JavaScriptCore as a framework, the WTF main runloop is never initialized. However,
        the inspector uses CFString wrappers, which use `callOnMainThread` when deallocating the
        underlying string. For now, we bring back the old `JSWTFMainThreadCaller` to ensure we have
        a way of dispatching to the main thread, even when the main runloop hasn't been initialized.

        * wtf/RunLoop.cpp:
        (WTF::RunLoop::mainIfExists):
        * wtf/RunLoop.h:
        * wtf/cocoa/MainThreadCocoa.mm:
        (-[JSWTFMainThreadCaller call]):
        (WTF::initializeMainThreadPlatform):
        (WTF::scheduleDispatchFunctionsOnMainThread):

2020-06-24  Umar Iqbal  <uiqbal@apple.com>

        We should resurrect the older patch that collects some statistics of web API calls
        https://bugs.webkit.org/show_bug.cgi?id=213319

        Reviewed by Brent Fulgham.

        + Enabled ENABLE_WEB_API_STATISTICS flag
        
        * wtf/PlatformEnableCocoa.h:

2020-06-24  Geoffrey Garen  <ggaren@apple.com>

        Removed the 50ms rescheduling timeout from callOnMainThread
        https://bugs.webkit.org/show_bug.cgi?id=213560

        Reviewed by Anders Carlsson.

        This is a step toward making the engine less flaky by unifying
        callOnMainThread with RunLoop::dispatch.

        The timeout was added in r40888 to avoid a hang under heavy postMessage
        load. A few reasons this isn’t the right approach anymore:

        (1) postMessage has migrated to EventLoop, which does its own
        scheduling.

        (2) postMessage does not use the application process RunLoop in Modern
        WebKit.

        (3) Delay is not a sufficient solution to a messaging hang — because
        you’ll just OOM crash instead. The original author noted this problem
        in bug 23705 but never resolved it; and we rediscovered it in r233111.

        I verified manually that the r40888 version of
        fast/workers/worker-timeout.html does not hang.

        * wtf/MainThread.cpp:
        (WTF::dispatchFunctionsFromMainThread):

2020-06-23  Geoffrey Garen  <ggaren@apple.com>

        Remove WTF::setMainThreadCallbacksPaused
        https://bugs.webkit.org/show_bug.cgi?id=213112

        Reviewed by Tim Horton.

        setMainThreadCallbacksPaused pauses all uses of callOnMainThread. That
        has too many side-effects. For example, you can scroll, but you can't
        paint any large images (since they do async image decoding).

        Meanwhile, setMainThreadCallbacksPaused doesn't pause RunLoop::dispatch.
        So, other things don't get paused.

        Let's just rely on suspending the ScriptExecutionContext and document
        event queue. That should suspend JavaScript-visible stuff without
        suspending engine-critical stuff.

        * wtf/MainThread.cpp:
        (WTF::dispatchFunctionsFromMainThread):
        (WTF::setMainThreadCallbacksPaused): Deleted.
        * wtf/MainThread.h:

2020-06-23  Chris Dumez  <cdumez@apple.com>

        Remove a lot of unnecessary calls to Ref::copyRef()
        https://bugs.webkit.org/show_bug.cgi?id=213533

        Reviewed by Darin Adler.

        Remove a lot of unnecessary calls to Ref::copyRef() now that Ref is copyable.

        * wtf/glib/SocketConnection.cpp:
        (WTF::SocketConnection::waitForSocketWritability):

2020-06-23  Saam Barati  <sbarati@apple.com>

        Remove WKkIsTranslated once our bots are updated to the needed SDK
        https://bugs.webkit.org/show_bug.cgi?id=213489

        Reviewed by Tim Horton.

        We can use the "sysctl.proc_translated" sysctl instead.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/TranslatedProcess.cpp: Added.
        (WTF::isX86BinaryRunningOnARM):
        * wtf/TranslatedProcess.h:
        (WTF::isX86BinaryRunningOnARM):

2020-06-23  Mark Lam  <mark.lam@apple.com>

        Handle string overflow in DFG graph dump while validating AI.
        https://bugs.webkit.org/show_bug.cgi?id=213524
        <rdar://problem/64635620>

        Reviewed by Saam Barati.

        * wtf/StringPrintStream.cpp:
        (WTF::StringPrintStream::tryToString):
        * wtf/StringPrintStream.h:

2020-06-22  Saam Barati  <sbarati@apple.com>

        Allow building JavaScriptCore Mac+arm64 in public SDK build
        https://bugs.webkit.org/show_bug.cgi?id=213472

        Reviewed by Sam Weinig.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:
        * wtf/PlatformHave.h:

2020-06-22  Timothy Horton  <timothy_horton@apple.com>

        Fix the build

        * wtf/TranslatedProcess.h:
        (WTF::isX86BinaryRunningOnARM):

2020-06-22  Tim Horton  <timothy_horton@apple.com>

        Disable the JS JIT when running in a translated process
        https://bugs.webkit.org/show_bug.cgi?id=213478

        Reviewed by Saam Barati.

        * wtf/PlatformHave.h:
        * wtf/TranslatedProcess.h: Added.
        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        Add a helper function that can be used to determine that the current process
        is being translated; currently the only case is an x86_64 process running on arm64e.

2020-06-22  Tim Horton  <timothy_horton@apple.com>

        Update macOS version macros
        https://bugs.webkit.org/show_bug.cgi?id=213484

        Reviewed by Alexey Proskuryakov.

        * Configurations/Base.xcconfig:
        * Configurations/DebugRelease.xcconfig:

2020-06-22  Geoffrey Garen  <ggaren@apple.com>

        Unreviewed, re-landing r262904.

        r263223 should fix the test flakiness we saw.

        Re-landed changeset:

        "[Cocoa] Build callOnMainThread on WTF::RunLoop rather than on
        a timer"
        https://bugs.webkit.org/show_bug.cgi?id=213063
        https://trac.webkit.org/changeset/262904

2020-06-21  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] Ensure ASCIILiteral is ASCII characters at compile time
        https://bugs.webkit.org/show_bug.cgi?id=213449

        Reviewed by Ross Kirsling.

        The purpose of ASCIILiteral is ensure that this is compile-time (do not need to consider about ownership) ASCII characters.
        By using `isASCII` and `ASSERT_UNDER_CONSTEXPR_CONTEXT`, we can make sure that this C string does not include non ASCII characters.
        For example,

            auto globalVariable = "ラーメン (Ramen in Japanese)"_s;

        becomes compile error.

        * wtf/ASCIICType.h:
        (WTF::isASCII):
        * wtf/text/ASCIILiteral.h:
        (WTF::StringLiterals::operator _s):

2020-06-21  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] URL should support dataLog
        https://bugs.webkit.org/show_bug.cgi?id=213450

        Reviewed by Mark Lam.

        Add URL::dump(PrintStream&) to support `dataLog(url)` which is extremely useful for WTF / JSC developers.

        * wtf/URL.cpp:
        (WTF::URL::dump const):
        * wtf/URL.h:

2020-06-19  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Check Gigacage usage before launching VM
        https://bugs.webkit.org/show_bug.cgi?id=213410

        Reviewed by Mark Lam.

        * wtf/Gigacage.h:
        (Gigacage::footprint):
        (Gigacage::maxSize):
        (Gigacage::size):

2020-06-19  Truitt Savell  <tsavell@apple.com>

        Unreviewed, reverting r263223.

        Broke compositing/video/video-border-radius-clipping.html on
        Mac release wk1

        Reverted changeset:

        "Unreviewed, re-landing r262904."
        https://bugs.webkit.org/show_bug.cgi?id=213063
        https://trac.webkit.org/changeset/263223

2020-06-19  Michael Catanzaro  <mcatanzaro@gnome.org>

        -Wsign-compare in isValidOptionSet
        https://bugs.webkit.org/show_bug.cgi?id=213383

        Reviewed by Darin Adler.

        The OptionSet's StorageType is always unsigned, even if the enum's underlying value is not.
        Match this in isValidOptionSet to avoid -Wsign-compare during validity checking.

        * wtf/OptionSet.h:
        (WTF::isValidOptionSet):

2020-06-19  Myles C. Maxfield  <mmaxfield@apple.com>

        [Cocoa] Unify "font:" CSS shorthand values between macOS and iOS family
        https://bugs.webkit.org/show_bug.cgi?id=213332
        <rdar://problem/64479189>

        Reviewed by Tim Horton and Darin Adler.

        All Cocoa platforms support kCTUIFontTextStyleTitle0 and kCTUIFontTextStyleTitle4.

        * wtf/PlatformHave.h:

2020-06-18  Mark Lam  <mark.lam@apple.com>

        Unify Bitmap math loops in MarkedBlock::Handle::specializedSweep().
        https://bugs.webkit.org/show_bug.cgi?id=213345

        Reviewed by Robin Morisset and Saam Barati.

        1. Removed Bitmap::words.  Use Bitmap::numberOfWords instead.
        2. Removed Bitmap::wordSize.  Use Bitmap::bitsInWord instead.
        3. Added a new Bitmap::words() method which returns the address of the underlying
           bitmap storage as a Bitmap::Word*.  This enables clients to do direct bit
           manipulation on the Bitmap words if needed.

        * wtf/Bitmap.h:
        (WTF::WordType>::get const):
        (WTF::WordType>::set):
        (WTF::WordType>::testAndSet):
        (WTF::WordType>::testAndClear):
        (WTF::WordType>::concurrentTestAndSet):
        (WTF::WordType>::concurrentTestAndClear):
        (WTF::WordType>::clear):
        (WTF::WordType>::invert):
        (WTF::WordType>::nextPossiblyUnset const):
        (WTF::WordType>::count const):
        (WTF::WordType>::isEmpty const):
        (WTF::WordType>::isFull const):
        (WTF::WordType>::merge):
        (WTF::WordType>::filter):
        (WTF::WordType>::exclude):
        (WTF::WordType>::concurrentFilter):
        (WTF::WordType>::subsumes const):
        (WTF::WordType>::forEachSetBit const):
        (WTF::WordType>::findBit const):
        (WTF::WordType>::mergeAndClear):
        (WTF::WordType>::setAndClear):
        (WTF::WordType>::setEachNthBit):
        (WTF::= const):
        (WTF::=):
        (WTF::WordType>::hash const):

2020-06-18  Geoffrey Garen  <ggaren@apple.com>

        Unreviewed, re-landing r262904.

        r263219 and r263175 should fix the test flakiness we saw.

        Re-landed changeset:

        "[Cocoa] Build callOnMainThread on WTF::RunLoop rather than on
        a timer"
        https://bugs.webkit.org/show_bug.cgi?id=213063
        https://trac.webkit.org/changeset/262904

2020-06-18  David Kilzer  <ddkilzer@apple.com>

        [IPC hardening] OptionSet<> values should be validated
        <https://webkit.org/b/213199>
        <rdar://problem/64369963>

        Reviewed by Anders Carlsson.

        * wtf/OptionSet.h:
        (WTF::isValidOptionSet): Add.

2020-06-17  Mark Lam  <mark.lam@apple.com>

        Replace JSC::FreeList linked list with a Bitmap.
        https://bugs.webkit.org/show_bug.cgi?id=213071

        Reviewed by Filip Pizlo.

        1. Use countOfBits<> template to compute the number of bits.
        2. Introduce log2() and log2Constexpr() utility functions.
        3. Make Bitmap<>::forEachSetBit() a little bit more efficient: we don't need to
           keep iterating if the bitmap word is already empty of bits.

        * wtf/Bitmap.h:
        (WTF::WordType>::forEachSetBit const):
        * wtf/MathExtras.h:
        (WTF::clzConstexpr):
        (WTF::clz):
        (WTF::ctzConstexpr):
        (WTF::ctz):
        (WTF::getMSBSet):
        (WTF::getMSBSetConstexpr):
        (WTF::log2):
        (WTF::log2Constexpr):

2020-06-17  David Kilzer  <ddkilzer@apple.com>

        Replace OptionSetTraits/OptionSetValues with EnumTraits/EnumValues
        <https://webkit.org/b/213264>

        Reviewed by Brent Fulgham.

        * wtf/OptionSet.h:
        (WTF::isValidOptionSetEnum):
        (WTF::maskRawValue):
        - Replace OptionSetTraits<>/OptionSetValues<> with
          EnumTraits<>/EnumValues<>.

2020-06-08  Andy Estes  <aestes@apple.com>

        [Apple Pay] Enable layout tests on more platforms
        https://bugs.webkit.org/show_bug.cgi?id=212955
        <rdar://problem/64174156>

        Reviewed by Alex Christensen.

        * wtf/PlatformEnableCocoa.h: Removed ENABLE_APPLE_PAY_INSTALLMENT_IDENTIFIERS,
        ENABLE_APPLE_PAY_INSTALLMENT_ITEMS, ENABLE_APPLE_PAY_SESSION_V8,
        ENABLE_APPLE_PAY_SESSION_V9, and ENABLE_APPLE_PAY_SESSION_V10.
        * wtf/PlatformHave.h: Removed HAVE_PASSKIT_INSTALLMENT_IDENTIFIERS and corrected iOS version
        checks for HAVE_PASSKIT_INSTALLMENTS.

2020-06-16  Michael Catanzaro  <mcatanzaro@gnome.org>

        Fix build with !HAVE(MACHINE_CONTEXT)
        https://bugs.webkit.org/show_bug.cgi?id=213223
        <rdar://problem/64390209>

        Reviewed by Yusuke Suzuki.

        In r263074, I messed up and broke the build with !HAVE(MACHINE_CONTEXT). Even though the
        sole purpose of that commit was to fix !HAVE(MACHINE_CONTEXT), I must have somehow messed up
        when testing my change.

        Anyway, we can just create an empty PlatformRegisters object when HAVE(MACHINE_CONTEXT) is
        false. At first, I was worried that passing an empty PlatformRegisters could be open to
        misuse, but it's actually hard to misuse it because the only sensible thing you can do with
        it is pass it to MachineContext, and you can't use MachineContext outside
        HAVE(MACHINE_CONTEXT), so we should be good.

        * wtf/threads/Signals.cpp:
        (WTF::jscSignalHandler):

2020-06-16  Chris Dumez  <cdumez@apple.com>

        Stop calling userPreferredLanguages() in the UIProcess
        https://bugs.webkit.org/show_bug.cgi?id=213214
        <rdar://problem/64317593>

        Reviewed by Per Arne Vollan.

        Export WTF::languageDidChange() so we can call it from WebKit2.

        * wtf/Language.h:

2020-06-16  Mark Lam  <mark.lam@apple.com>

        Add SIGABRT handler for non OS(DARWIN) builds to the jsc shell with the -s option.
        https://bugs.webkit.org/show_bug.cgi?id=213200

        Reviewed by Michael Catanzaro.

        * wtf/threads/Signals.h:
        (WTF::toSystemSignal):
        (WTF::fromSystemSignal):

2020-06-15  Michael Catanzaro  <mcatanzaro@gnome.org>

        WTF signal machinery is guarded by #if USE(PTHREADS) && HAVE(MACHINE_CONTEXT) but does not use pthreads or machine context
        https://bugs.webkit.org/show_bug.cgi?id=213223

        Reviewed by Mark Lam.

        Use #if OS(UNIX) instead.

        * wtf/WTFConfig.h:
        * wtf/threads/Signals.cpp:
        * wtf/threads/Signals.h:

2020-06-15  Keith Miller  <keith_miller@apple.com>

        REGRESSION (r263045): TestWTF.Signals.SignalsWorkOnExit crashing
        https://bugs.webkit.org/show_bug.cgi?id=213211

        Reviewed by Mark Lam.

        Don't call toMachMask on Signal::Usr as mach doesn't support user exceptions.

        * wtf/threads/Signals.cpp:
        (WTF::SignalHandlers::add):

2020-06-15  Michael Catanzaro  <mcatanzaro@gnome.org>

        Consistently use WTF_ATTRIBUTE_PRINTF in Assertions.[cpp,h]
        https://bugs.webkit.org/show_bug.cgi?id=213204

        Reviewed by Darin Adler.

        Use WTF_ATTRIBUTE_PRINTF for all functions taking a printf format specifier. The first
        argument should be the position of the format string itself (starting from 1), and the
        second argument should be the position of the ... parameter pack, or 0 for functions that
        take a va_list.

        * wtf/Assertions.cpp:
        * wtf/Assertions.h:

2020-06-15  Keith Miller  <keith_miller@apple.com>

        Unreviewed, build fix for build without mach exceptions.

        * wtf/threads/Signals.cpp:
        (WTF::SignalHandlers::add):
        (WTF::addSignalHandler):

2020-06-15  Keith Miller  <keith_miller@apple.com>

        Signal handlers should have a two phase installation.
        https://bugs.webkit.org/show_bug.cgi?id=213160

        Reviewed by Mark Lam.

        LLDB does not like it when we single step while there are mach exception
        handlers installed because LLDB suspends all the non-active threads.
        With Mach exception handlers installed, the OS will send a mach message
        to our exception handler port, which is different than the active thread.
        When this happens, the combination of LLDB and the process JSC is in effectively
        deadlock.

        Under our new approach, we go back to only telling the OS we care about
        these exceptions late but lock down the function pointers early. This way
        processes that benefit from our exception handler code are easier to debug.

        * wtf/threads/Signals.cpp:
        (WTF::addSignalHandler):
        (WTF::activateSignalHandlersFor):
        (WTF::installSignalHandler): Deleted.
        * wtf/threads/Signals.h:

2020-06-15  Per Arne Vollan  <pvollan@apple.com>

        Pack bytes a little tighter in MemoryPressureHandler
        https://bugs.webkit.org/show_bug.cgi?id=200392

        Reviewed by Yusuke Suzuki.

        Save a tiny bit of memory by packing member variables tighter in MemoryPressureHandler.

        * wtf/MemoryPressureHandler.h:

2020-06-12  Keith Miller  <keith_miller@apple.com>

        Tests expecting a crash should use a signal handler in the JSC CLI process
        https://bugs.webkit.org/show_bug.cgi?id=212479

        Reviewed by Yusuke Suzuki.

        Add signals for floating point exceptions and breakpoints. There's a
        note for breakpoints that explains how using them in the same process
        as lldb will cause badness. Fortunately, the only place I plan on using
        the breakpoint handler is to check for tests where crashing is expected.

        * wtf/threads/Signals.cpp:
        (WTF::fromMachException):
        (WTF::toMachMask):
        * wtf/threads/Signals.h:
        (WTF::toSystemSignal):
        (WTF::fromSystemSignal):

2020-06-12  Jason Lawrence  <lawrence.j@apple.com>

        Unreviewed, reverting r262904.

        This commit broke a test on Mac wk1 Debug.

        Reverted changeset:

        "[Cocoa] Build callOnMainThread on WTF::RunLoop rather than on
        a timer"
        https://bugs.webkit.org/show_bug.cgi?id=213063
        https://trac.webkit.org/changeset/262904

2020-06-12  Adrian Perez de Castro  <aperez@igalia.com>

        Build is broken with EVENT_LOOP_TYPE=GLib
        https://bugs.webkit.org/show_bug.cgi?id=212987

        Reviewed by Konstantin Tokarev.

        * wtf/CurrentTime.cpp: Make sure that <time.h> is included to get clock_gettime() and
        friends defined when USE_GLIB is disabled.
        * wtf/PlatformJSCOnly.cmake: Use FileSystemGLib instead of FileSystemPOSIX when
        EVENT_LOOP_TYPE=GLib is set, add missing sources needed when ENABLE_REMOTE_INSPECTOR
        is set.
        * wtf/glib/RunLoopSourcePriority.h: Use the same list of priorities for WPE and JSCOnly.

2020-06-11  Alex Christensen  <achristensen@webkit.org>

        Re-enable download resume tests
        https://bugs.webkit.org/show_bug.cgi?id=213098
        <rdar://problem/63512518>

        Reviewed by Geoffrey Garen.

        Workaround is no longer needed because underlying bug has been fixed.

        * wtf/PlatformHave.h:

2020-06-11  Jonathan Bedard  <jbedard@apple.com>

        WebKit: Make UIGestureRecognizer build for watchOS and tvOS
        https://bugs.webkit.org/show_bug.cgi?id=213038
        <rdar://problem/64217654>

        Reviewed by Tim Horton.

        * wtf/PlatformHave.h: Enable HAVE(UI_GESTURE_RECOGNIZER_MODIFIER_FLAGS) for watchOS and tvOS.

2020-06-11  David Kilzer  <ddkilzer@apple.com>

        [IPC] Adopt enum class for DragSourceAction
        <https://webkit.org/b/212885>
        <rdar://problem/64094134>

        Reviewed by Darin Adler.

        * wtf/OptionSet.h:
        (WTF::OptionSet::hasExactlyOneBitSet const): Add.
        - Move here from WebCore::ExactlyOneBitSet() in
          Source/WebCore/page/EventHandler.cpp.
        (WTF::OptionSet::toSingleValue const): Add.
        - Use hasExactlyOneBitSet() to determine whether exactly one
          enum bitmask value can be returned.

2020-06-11  Geoffrey Garen  <ggaren@apple.com>

        [Cocoa] Build callOnMainThread on WTF::RunLoop rather than on a timer
        https://bugs.webkit.org/show_bug.cgi?id=213063

        Reviewed by Anders Carlsson.

        Always use the RunLoop API for main thread tasks.

        Previously, callOnMainThread sometimes scheduled a timer and sometimes
        used the RunLoop. (Ironically, the timer behavior was added in r55816
        with the intention to establish a single point of execution. Now, it has
        the opposite effect.)

        I picked the RunLoop API rather than the timer API because it moves us
        closer to universally applying the RunLoop speedup in
        https://bugs.webkit.org/show_bug.cgi?id=202874. Also, it avoids
        allocating a timer, which can be expensive.

        * wtf/cocoa/MainThreadCocoa.mm:
        (WTF::scheduleDispatchFunctionsOnMainThread): The webIfExists() check
        is a superset of the isWebThread() check, so we can just remove the
        isWebThread() check when scheduling tasks to the web thread.
        (WTF::timerFired): Deleted.
        (WTF::postTimer): Deleted.

2020-06-10  Geoffrey Garen  <ggaren@apple.com>

        Some style improvements to main thread code
        https://bugs.webkit.org/show_bug.cgi?id=213051

        Reviewed by Darin Adler.

        * wtf/RunLoop.cpp:
        (WTF::RunLoop::initializeMain): Renamed initializeMainRunLoop => initializeMain
        to match the getter's name.
        (WTF::RunLoop::initializeWeb): Samesies.
        (WTF::RunLoop::webIfExists): Added an IfExists accessor for use in
        scheduleDispatchFunctionsOnMainThread().
        (WTF::RunLoop::initializeMainRunLoop): Deleted.
        (WTF::RunLoop::initializeWebRunLoop): Deleted.

        * wtf/RunLoop.h:

        * wtf/cocoa/MainThreadCocoa.mm:
        (WTF::scheduleDispatchFunctionsOnMainThread): Use RunLoop::webIfExists()
        to check for the web thread run loop, since that's more explicit than
        checking a pthread variable.

        (WTF::isWebThread): Renamed mainThreadPthread => webThreadPthread because
        it's the web thread. Changed style on globals to "s_" for consistency.
        Removed mainThreadNSThread because it was unused.
        (WTF::initializeApplicationUIThread):
        (WTF::initializeWebThread):
        (WTF::canCurrentThreadAccessThreadLocalData):

2020-06-10  Geoffrey Garen  <ggaren@apple.com>

        [Cocoa] Build callOnMainThread on WTF::RunLoop rather than on NSObject methods
        https://bugs.webkit.org/show_bug.cgi?id=213043

        Reviewed by Simon Fraser.

        Original patch by Sihui Liu.

        From https://bugs.webkit.org/show_bug.cgi?id=202874, this is the subset
        of Sihui's patch that unifies some of RunLoop and callOnMainThread.

        My goal is to simplify the code, and shrink the diff when testing
        CFRunLoopSource1 in the future.

        * wtf/RunLoop.cpp:
        (WTF::RunLoop::initializeWebRunLoop):
        (WTF::RunLoop::web):
        * wtf/RunLoop.h:
        * wtf/cocoa/MainThreadCocoa.mm:
        (WTF::initializeMainThreadPlatform):
        (WTF::scheduleDispatchFunctionsOnMainThread):
        (WTF::initializeWebThread):
        (-[JSWTFMainThreadCaller call]): Deleted.

2020-06-10  Jer Noble  <jer.noble@apple.com>

        Catalyst WebKit apps continue to play audio after quitting
        https://bugs.webkit.org/show_bug.cgi?id=212981
        <rdar://problem/57089471>

        Reviewed by Chris Dumez.

        Add the ability to call copyToVector() on a WeakHashSet. This requires two changes:
        - A template specialization that returns a Vector<WeakPtr<T>> from copyToVector()
        - A template specialization that calls calculateSize() rather than size() on the object
          being iterated upon.

        * wtf/WeakHashSet.h:
        (WTF::copyToVector):

2020-06-09  Tim Horton  <timothy_horton@apple.com>

        Use os_log instead of asl_log
        https://bugs.webkit.org/show_bug.cgi?id=213001

        Reviewed by Saam Barati.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Assertions.cpp:

2020-06-09  Chris Dumez  <cdumez@apple.com>

        Use bridge cast in String(NSString *) constructor
        https://bugs.webkit.org/show_bug.cgi?id=212989

        Reviewed by Darin Adler.

        Use bridge cast in String(NSString *) constructor instead of a reinterpret_cast as this
        is the preferred way of converting a NS Type to a CF one.

        * wtf/text/cocoa/StringCocoa.mm:
        (WTF::String::String):

2020-06-09  Per Arne Vollan  <pvollan@apple.com>

        All platforms should enable CFPrefs read only mode in the WebContent process
        https://bugs.webkit.org/show_bug.cgi?id=212910

        Reviewed by Tim Horton.

        In https://bugs.webkit.org/show_bug.cgi?id=212411, CFPrefs read only mode was adopted, but not all platforms were included.

        * wtf/PlatformHave.h:

2020-06-09  Wenson Hsieh  <wenson_hsieh@apple.com>

        REGRESSION (r260820): [macCatalyst] Web process crashes when uploading a file
        https://bugs.webkit.org/show_bug.cgi?id=212976
        <rdar://problem/64033186>

        Reviewed by Tim Horton.

        Add `HAVE(FRONTBOARD_SYSTEM_APP_SERVICES)`.

        * wtf/PlatformHave.h:

2020-06-08  Chris Fleizach  <cfleizach@apple.com>

        HAVE(ACCESSIBILITY_BUNDLES_PATH) is defined in terms of PLATFORM(IOS_FAMILY) but only checks the version of __IPHONE_OS_VERSION_MIN_REQUIRED
        https://bugs.webkit.org/show_bug.cgi?id=212704
        <rdar://problem/63931340>

        Reviewed by Darin Adler.

        Ensure that this works for all iOS familes.

        * wtf/PlatformHave.h:

2020-06-08  Per Arne Vollan  <pvollan@apple.com>

        [Cocoa] Adopt read-only mode for preferences in the WebContent process
        https://bugs.webkit.org/show_bug.cgi?id=212411

        Reviewed by Darin Adler.

        Change name of HAVE define to match SPI name.

        * wtf/PlatformHave.h:

2020-06-08  Andy Estes  <aestes@apple.com>

        [Apple Pay] Remove -respondsToSelector: check before calling -[PKPaymentRequest setBoundInterfaceIdentifier:]
        https://bugs.webkit.org/show_bug.cgi?id=212884
        <rdar://problem/64090963>

        Reviewed by Youenn Fablet.

        * wtf/PlatformHave.h: On macOS, HAVE_PASSKIT_BOUND_INTERFACE_IDENTIFIER should be defined
        starting in Catalina.

2020-06-08  Andy Estes  <aestes@apple.com>

        [Apple Pay] Remove ENABLE_APPLE_PAY_SETUP, ENABLE_APPLE_PAY_SESSION_V7, and HAVE_PASSKIT_PAYMENT_SETUP
        https://bugs.webkit.org/show_bug.cgi?id=212883
        <rdar://problem/64090763>

        Reviewed by Youenn Fablet.

        These macros evaluate to true whenever ENABLE(APPLE_PAY) is true on platforms supported by
        trunk WebKit, so we can either remove them or replace them with ENABLE(APPLE_PAY).

        * wtf/PlatformEnableCocoa.h:
        * wtf/PlatformHave.h:

2020-06-08  youenn fablet  <youenn@apple.com>

        [Cocoa] Use AVAssetWriterDelegate to implement MediaRecorder
        https://bugs.webkit.org/show_bug.cgi?id=206582

        Reviewed by Eric Carlson.

        * wtf/PlatformHave.h:

2020-06-07  Andy Estes  <aestes@apple.com>

        [Apple Pay] HAVE(PAYMENT_METHOD_BILLING_ADDRESS) should be true on iOS
        https://bugs.webkit.org/show_bug.cgi?id=212877
        <rdar://problem/64080998>

        Reviewed by Sam Weinig.

        * wtf/PlatformHave.h:

2020-06-07  Philippe Normand  <pnormand@igalia.com>

        Remove ENABLE_VIDEO_TRACK ifdef guards
        https://bugs.webkit.org/show_bug.cgi?id=212568

        Reviewed by Youenn Fablet.

        * wtf/PlatformEnable.h: Remove ENABLE_VIDEO_TRACK, which is now enabled by
        default under the ENABLE_VIDEO guard.
        * wtf/PlatformEnableCocoa.h: Ditto.

2020-06-06  David Kilzer  <ddkilzer@apple.com>

        Use OptionSet<DragOperation> for mask values
        <https://webkit.org/b/212605>

        Reviewed by Darin Adler.

        * wtf/OptionSet.h:
        (WTF::OptionSet::OptionSet):
        - Add constructor for OptionSet(Optional).

2020-06-05  Ryan Haddad  <ryanhaddad@apple.com>

        Unreviewed, reverting r262619, r262625, and r262641.

        Caused mediarecorder layout test crashes.

        Reverted changesets:

        "[Cocoa] Use AVAssetWriterDelegate to implement MediaRecorder"
        https://bugs.webkit.org/show_bug.cgi?id=206582
        https://trac.webkit.org/changeset/262619

        "[Cocoa] Use AVAssetWriterDelegate to implement MediaRecorder"
        https://bugs.webkit.org/show_bug.cgi?id=206582
        https://trac.webkit.org/changeset/262625

        "Unreviewed, silence deprecation warning to fix build with
        latest SDK."
        https://trac.webkit.org/changeset/262641

2020-06-05  Per Arne Vollan  <pvollan@apple.com>

        [Cocoa] Adopt read-only mode for preferences in the WebContent process
        https://bugs.webkit.org/show_bug.cgi?id=212411

        Reviewed by Darin Adler.

        Create HAVE define indicating support for read-only preference SPI.

        * wtf/PlatformHave.h:

2020-06-05  youenn fablet  <youenn@apple.com>

        [Cocoa] Use AVAssetWriterDelegate to implement MediaRecorder
        https://bugs.webkit.org/show_bug.cgi?id=206582

        Reviewed by Eric Carlson.

        * wtf/PlatformHave.h:

2020-06-04  Jonathan Bedard  <jbedard@apple.com>

        WTF: Exclude MachExceptions.defs from all embedded builds
        https://bugs.webkit.org/show_bug.cgi?id=212796

        Reviewed by Alexey Proskuryakov.

        * Configurations/WTF.xcconfig:

2020-06-04  Wenson Hsieh  <wenson_hsieh@apple.com>

        [macOS] Add a way to override the contact AutoFill button image
        https://bugs.webkit.org/show_bug.cgi?id=212775
        <rdar://problem/60381452>

        Reviewed by Tim Horton.

        Rename `SYSTEM_ATTACHMENT_PLACEHOLDER_ICON` to `ALTERNATE_ICONS`.

        * wtf/PlatformHave.h:

2020-06-04  Jacob Uphoff  <jacob_uphoff@apple.com>

        Unreviewed, reverting r262546.

        This commit caused internal build failures

        Reverted changeset:

        "[Cocoa] Adopt read-only mode for preferences in the
        WebContent process"
        https://bugs.webkit.org/show_bug.cgi?id=212411
        https://trac.webkit.org/changeset/262546

2020-06-04  Per Arne Vollan  <pvollan@apple.com>

        [Cocoa] Adopt read-only mode for preferences in the WebContent process
        https://bugs.webkit.org/show_bug.cgi?id=212411

        Reviewed by Darin Adler.

        Create HAVE define indicating support for read-only preference SPI.

        * wtf/PlatformHave.h:

2020-06-04  Tim Horton  <timothy_horton@apple.com>

        Work around broken system version macro
        https://bugs.webkit.org/show_bug.cgi?id=212726

        Reviewed by Dan Bernstein.

        * Configurations/DebugRelease.xcconfig:

2020-06-04  Andy Estes  <aestes@apple.com>

        [watchOS] Re-enable content filtering in the simulator build
        https://bugs.webkit.org/show_bug.cgi?id=212711
        <rdar://problem/63938350>

        Reviewed by Wenson Hsieh.

        * wtf/PlatformHave.h:

2020-06-03  Andy Estes  <aestes@apple.com>

        [Apple Pay] Add new values for -apple-pay-button-type
        https://bugs.webkit.org/show_bug.cgi?id=212684
        <rdar://problem/63908535>

        Reviewed by Anders Carlsson.

        * wtf/PlatformEnableCocoa.h:

2020-06-01  Simon Fraser  <simon.fraser@apple.com>

        Add ENABLE(WHEEL_EVENT_REGIONS), enabled on macOS which is the only platform that needs wheel event regions for scrolling thread hit-testing
        https://bugs.webkit.org/show_bug.cgi?id=212620

        Reviewed by Tim Horton.

        Surround code related to wheel event regions with ENABLE(WHEEL_EVENT_REGIONS).

        Eventually we'll use this same code for touch event regions, and when we do, we
        can rejigger the #ifdefs.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:

2020-06-02  Mark Lam  <mark.lam@apple.com>

        Change Gigacage::Config to use storage in WebConfig::g_config instead of its own.
        https://bugs.webkit.org/show_bug.cgi?id=212585
        <rdar://problem/63812487>

        Reviewed by Yusuke Suzuki.

        We now think of the various Config records as being allocated from parts of a
        WebConfig::g_config buffer.  WTF::Config will manage the mechanics of freezing
        that buffer.  And the JSC VM is still the determiner of if/when to freeze the
        buffer, and it will do this at the end of the construction of the very first
        VM instance (as before).

        Gigacage::Config reserves space in WebConfig::g_config.
        WTF::Config will honor that reservation and place itself after that.
        JSC::Config will continue to place itself at WTF::Config::spaceForExtensions.

        The upside of this approach this is that we can now share the same memory page
        for all the Configs, and can freeze them in one go.

        The downside is that g_gigacageConfig, g_wtfConfig, and g_jscConfig now have to
        be macros.  This results in some weirdness e.g. they are no longer qualified by
        namespaces: referring to WTF::g_wtfConfig is now incorrect.

        * wtf/Gigacage.h:
        (Gigacage::disablingPrimitiveGigacageIsForbidden):
        (Gigacage::isDisablingPrimitiveGigacageForbidden): Deleted.
        (Gigacage::isPrimitiveGigacagePermanentlyEnabled): Deleted.
        (Gigacage::canPrimitiveGigacageBeDisabled): Deleted.
        * wtf/WTFConfig.cpp:
        (WTF::Config::permanentlyFreeze):
        * wtf/WTFConfig.h:
        (): Deleted.

2020-06-01  Simon Fraser  <simon.fraser@apple.com>

        Add ENABLE(TOUCH_ACTION_REGIONS) to wrap code that's only relevant for platforms that consult touch-action for event handling
        https://bugs.webkit.org/show_bug.cgi?id=212572

        Reviewed by Andy Estes.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:

2020-05-31  Mark Lam  <mark.lam@apple.com>

        Change JSC::Config to use storage in WTF::Config instead of its own.
        https://bugs.webkit.org/show_bug.cgi?id=212575
        <rdar://problem/63796584>

        Reviewed by Yusuke Suzuki.

        * wtf/WTFConfig.h:

2020-05-30  Mark Lam  <mark.lam@apple.com>

        Rename Signal::BadAccess to Signal::AccessFault.
        https://bugs.webkit.org/show_bug.cgi?id=212577

        Reviewed by Yusuke Suzuki.

        This is needed because GTK port's X11 has a #define for BadAccess (in include/X11/X.h):

            #define BadAccess     10    /* depending on context:
                                         - key/button already grabbed
                                         - attempt to free an illegal 
                                           cmap entry 
                                         - attempt to store into a read-only 
                                           color map entry.
                                         - attempt to modify the access control
                                           list from other than the local host.
                                         */

        As a result, this would break the GTK build when wtf/Signals.h is #include'd.

        * wtf/threads/Signals.cpp:
        (WTF::fromMachException):
        (WTF::toMachMask):
        (WTF::jscSignalHandler):
        * wtf/threads/Signals.h:
        (WTF::toSystemSignal):
        (WTF::fromSystemSignal):

2020-05-29  Alex Christensen  <achristensen@webkit.org>

        Use correct encoding when converting a WTF::URL to CFURLRef
        https://bugs.webkit.org/show_bug.cgi?id=212486

        Reviewed by Darin Adler.

        * wtf/cf/CFURLExtras.cpp:
        (WTF::createCFURLFromBuffer):
        * wtf/cf/CFURLExtras.h:
        * wtf/cf/URLCF.cpp:
        (WTF::URL::createCFURL const):
        * wtf/cocoa/URLCocoa.mm:
        (WTF::URL::createCFURL const):

2020-05-29  Brent Fulgham  <bfulgham@apple.com>

        [Cocoa] Improve logging quality for non-ephemeral sessions
        https://bugs.webkit.org/show_bug.cgi?id=212551
        <rdar://problem/62461099>

        Reviewed by David Kilzer.

        * wtf/PlatformHave.h: Add new feature check for CFNetwork convenience setter.

2020-05-29  Wenson Hsieh  <wenson_hsieh@apple.com>

        REGRESSION (r261812): editing/async-clipboard/clipboard-item-get-type-basic.html is flaky
        https://bugs.webkit.org/show_bug.cgi?id=212281
        <rdar://problem/63554912>

        Reviewed by Tim Horton.

        Add a new `HAVE()` define.

        * wtf/PlatformHave.h:

2020-05-27  Keith Miller  <keith_miller@apple.com>

        for-of should check the iterable is a JSArray for FastArray in DFG iterator_open
        https://bugs.webkit.org/show_bug.cgi?id=212383

        Reviewed by Saam Barati.

        Optional should be able to copy/move constructor itself as long as <T> is
        trivially copyable. This lets us copy Optionals into const globals without
        global constructors.

        * wtf/Optional.h:
        (WTF::Optional::Optional):
        (WTF::Optional::__NOEXCEPT_):

2020-05-27  Noam Rosenthal  <noam@webkit.org>

        Implement AccessKeyLabel attribute.
        https://bugs.webkit.org/show_bug.cgi?id=72715

        Reviewed by Darin Adler.

        Added character names for upArrow/option, as they're needed for accessKeyLabel.

        * wtf/unicode/CharacterNames.h:

2020-05-27  Saam Barati  <sbarati@apple.com>

        Improve comments about OS/PLATFORM(IOS) and friends
        https://bugs.webkit.org/show_bug.cgi?id=212438

        Reviewed by Tim Horton.

        * wtf/PlatformLegacy.h:
        * wtf/PlatformOS.h:

2020-05-27  David Kilzer  <ddkilzer@apple.com>

        Add OptionSetTraits<> and use with WebCore::DragDestinationAction
        <https://webkit.org/b/212397>

        Reviewed by Alex Christensen.

        Add OptionSetTraits<> (similar to EnumTraits<>) to define all
        valid values for a given enum type.  This allows us to use that
        bitmask with OptionSet<>::fromRaw() to clear undefined bits, and
        to validate enum values used with the OptionSet<> constructors.

        Note that the extra validation possible with OptionSetTraits<>
        is enabled based on the existence of that type using the new
        WTF::is_type_complete_v<> type trait.  Other OptionSet<> enums
        fall back to the original validation checks.

        Finally, typename <T> is changed to <E> for OptionSet<> to
        emphasize that it's an enum typename.

        * wtf/OptionSet.h:
        (WTF::is_type_complete_v): Add.
        (WTF::OptionSetTraits): Add.
        (WTF::OptionSetValues): Add.
        (WTF::OptionSetValueChecker): Add.
        (WTF::isValidOptionSetEnum): Add.
        (WTF::maskRawValue): Add.
        (WTF::OptionSet::Iterator::operator* const):
        (WTF::OptionSet::fromRaw):
        (WTF::OptionSet::OptionSet):
        (WTF::OptionSet::contains const):

2020-05-27  Michael Catanzaro  <mcatanzaro@gnome.org>

        -Wdeprecated-copy caused by Bitmap copy assignment operator
        https://bugs.webkit.org/show_bug.cgi?id=212421

        Reviewed by Mark Lam.

        This copy assignment operator is not needed, and causes warnings because we do not have a
        corresponding copy constructor. We could add a copy constructor, but it's easiest to just
        remove the copy assignment operator.

        * wtf/Bitmap.h:

2020-05-26  Darin Adler  <darin@apple.com>

        Sort PlatformEnableCocoa.h and add definitions for the simple cases from FeatureDefines.xcconfig
        https://bugs.webkit.org/show_bug.cgi?id=212389

        Reviewed by Anders Carlsson.

        Added more PlatformEnableCocoa.h; allowing us to later remove things from
        FeatureDefines.xcconfig (patch forthcoming).

        * wtf/PlatformEnableCocoa.h: Added definitions from FeatureDefines.xcconfig that
        were simple, and that differ from the defaults in PlatformEnable.h. That includes
        3D_TRANSFORMS, ACCESSIBILITY_ISOLATED_TREE (macOS >= 10.6), APPLICATION_MANIFEST,
        ASYNC_SCROLLING, ATTACHMENT_ELEMENT, AVF_CAPTIONS, CACHE_PARTITIONING,
        CSS_COMPOSITING, CSS_PAINTING_API, CSS_SCROLL_SNAP, CSS_SELECTORS_LEVEL4,
        CSS_TRAILING_WORD, CSS_TYPED_OM, DATACUE_VALUE, DATALIST_ELEMENT, FILTERS_LEVEL_2,
        GPU_PROCESS, INDEXED_DATABASE, INDEXED_DATABASE_IN_WORKERS, INSPECTOR_TELEMETRY,
        INTERSECTION_OBSERVER, LAYOUT_FORMATTING_CONTEXT, LEGACY_CSS_VENDOR_PREFIXES,
        LEGACY_CUSTOM_PROTOCOL_MANAGER, MEDIA_CONTROLS_SCRIPT, MEMORY_SAMPLER,
        MOUSE_CURSOR_SCALE (macOS), NETWORK_CACHE_SPECULATIVE_REVALIDATION,
        NETWORK_CACHE_STALE_WHILE_REVALIDATE, NOTIFICATIONS (macOS), PDFKIT_PLUGIN (macOS),
        PERIODIC_MEMORY_MONITOR (macOS), PUBLIC_SUFFIX_LIST, RESIZE_OBSERVER,
        RESOURCE_LOAD_STATISTICS, RUBBER_BANDING (macOS), SANDBOX_EXTENSIONS,
        SERVER_PRECONNECT, SERVICE_CONTROLS (macOS), SHAREABLE_RESOURCE,
        TELEPHONE_NUMBER_DETECTION, TEXT_AUTOSIZING, USERSELECT_ALL, USER_MESSAGE_HANDLERS,
        VARIATION_FONTS, VIDEO, VIDEO_USES_ELEMENT_FULLSCREEN (macOS),
        WEBDRIVER_KEYBOARD_INTERACTIONS, WEBDRIVER_MOUSE_INTERACTIONS (macOS),
        WEBGL, WEBGL2, WEB_AUDIO, WEB_CRYPTO, and WIRELESS_PLAYBACK_TARGET. Sorted and
        merged all the existing settings.

2020-05-26  Alex Christensen  <achristensen@webkit.org>

        UTF-8 encode strings of invalid URLs when converting WTF::URL to NSURL instead of truncating the UTF-16 encoding
        https://bugs.webkit.org/show_bug.cgi?id=212393
        <rdar://problem/63095503>

        Reviewed by Tim Horton.

        This only changes behavior in code that is marked as UNLIKELY because it can only be reached by invalid unicode URLs,
        but it can be reached and should behave in a reasonable manner in those cases.  This makes Safari behave more similarly
        to Firefox in this case instead of doing something similar to no other browser.

        * wtf/URL.cpp:
        (WTF::copyASCII): Deleted.
        (WTF::URL::copyToBuffer const): Deleted.
        * wtf/URL.h:
        * wtf/cf/URLCF.cpp:
        (WTF::URL::createCFURL const):
        * wtf/cocoa/URLCocoa.mm:
        (WTF::URL::createCFURL const):

2020-05-26  Yoshiaki JITSUKAWA  <yoshiaki.jitsukawa@sony.com>

        [PlayStation] Disable LLINT_EMBEDDED_OPCODE_ID
        https://bugs.webkit.org/show_bug.cgi?id=212387

        Reviewed by Don Olmstead.

        * wtf/CMakeLists.txt:
        * wtf/PlatformEnable.h:
        * wtf/PlatformEnablePlayStation.h: Added.

2020-05-26  Mark Lam  <mark.lam@apple.com>

        Enhance Bitmap::setEachNthBit() to also take an end index.
        https://bugs.webkit.org/show_bug.cgi?id=212386
        <rdar://problem/63643324>

        Reviewed by Robin Morisset.

        Previously, it was only taking the n interval, and the start index.
        Also fixed isEmpty() and isFull() to return a bool instead of size_t.

        * wtf/Bitmap.h:
        (WTF::WordType>::isEmpty const):
        (WTF::WordType>::isFull const):
        (WTF::WordType>::setEachNthBit):

2020-05-26  Don Olmstead  <don.olmstead@sony.com>

        [CMake] Add static analyzers
        https://bugs.webkit.org/show_bug.cgi?id=212280

        Reviewed by David Kilzer.

        Export headers from Plaform.h so include-what-you-use does not suggest they be
        included directly. The headers being exported will #error when included outside of
        Platform.h

        * wtf/Platform.h:

2020-05-25  Alex Christensen  <achristensen@webkit.org>

        Expose more network metrics to WebCoreNSURLSession
        https://bugs.webkit.org/show_bug.cgi?id=212359
        <rdar://problem/62909440>

        Reviewed by Darin Adler.

        * wtf/PlatformHave.h:

2020-05-22  David Kilzer  <ddkilzer@apple.com>

        WTF::isValidEnum() has a typo in static_assert making it a tautological comparison
        <https://webkit.org/b/212290>

        Reviewed by Yusuke Suzuki.

        * wtf/EnumTraits.h:
        (WTF::isValidEnum): Use sizeof(std::underlying_type_t<E>)
        instead of std::underlying_type_t<E>() to fix the bug.

2020-05-22  Chris Dumez  <cdumez@apple.com>

        RELEASE_ASSERT() that InitializeWebKit2() is getting called on the main thread
        https://bugs.webkit.org/show_bug.cgi?id=212283

        Reviewed by Alex Christensen.

        * wtf/spi/darwin/dyldSPI.h:

2020-05-22  Andy Estes  <aestes@apple.com>

        [Apple Pay] Add new ApplePayInstallmentConfiguration members
        https://bugs.webkit.org/show_bug.cgi?id=212160
        <rdar://problem/60703650>

        Reviewed by Alex Christensen.

        * wtf/PlatformEnableCocoa.h: Defined ENABLE_APPLE_PAY_INSTALLMENT_IDENTIFIERS.

2020-05-21  Robin Morisset  <rmorisset@apple.com>

        Various compile-time boolean flags could/should be marked constexpr
        https://bugs.webkit.org/show_bug.cgi?id=212244

        Reviewed by Mark Lam.

        * wtf/ParkingLot.cpp:

2020-05-20  Mark Lam  <mark.lam@apple.com>

        Add more Bitmap methods.
        https://bugs.webkit.org/show_bug.cgi?id=212190
        <rdar://problem/63481333>

        Reviewed by Robin Morisset.

        Specifically,
            setEachNthBit - sets every Nth bit starting at a specified start bit
            operator=     - assignment
            operator|=    - bit or and assignment
            operator&=    - bit and and assignment
            operator^=    - bit xor and assignment

        * wtf/Bitmap.h:

2020-05-21  Yoshiaki Jitsukawa  <yoshiaki.jitsukawa@sony.com>

        [PlayStation] Add minimal WKView API to enable TestWebKitAPI
        https://bugs.webkit.org/show_bug.cgi?id=211868

        Reviewed by Alex Christensen.

        Enable TestWebKitAPI

        * wtf/PlatformPlayStation.cmake:
        Link libc as a system library.

2020-05-21  Wenson Hsieh  <wenson_hsieh@apple.com>

        Unreviewed, fix the iOS 13.4 build after r261978

        Add a `HAVE()` macro to guard usages of _UIHoverEventRespondable.

        * wtf/PlatformHave.h:

2020-05-20  Simon Fraser  <simon.fraser@apple.com>

        [macOS] Scrolling synchronization part 1: Have the scrolling thread wait half a frame for the main thread to complete the rendering update
        https://bugs.webkit.org/show_bug.cgi?id=212168

        Reviewed by Tim Horton.

        Some new trace points for scrolling thread activity.

        * wtf/SystemTracing.h:

2020-05-20  Tim Horton  <timothy_horton@apple.com>

        WKMouseGestureRecognizer should be implemented without using UIKit internals
        https://bugs.webkit.org/show_bug.cgi?id=212173
        <rdar://problem/61163726>

        Reviewed by Wenson Hsieh.

        * wtf/PlatformHave.h:

2020-05-20  Alex Christensen  <achristensen@webkit.org>

        Remove implicit URL->String conversion operators
        https://bugs.webkit.org/show_bug.cgi?id=211033

        Reviewed by Darin Adler.

        These operators have been the cause of many subtle bugs related to type inference that are hard to see in the code,
        as well as performance bugs where we unnecessarily re-parse parsed URLs.
        After my recent cleanup this was easier than I thought it would be.

        * wtf/URL.h:
        (WTF::URL::operator const String& const): Deleted.
        (WTF::URL::operator StringView const): Deleted.
        (WTF::URL::operator NSString * const): Deleted.

2020-05-20  Antoine Quint  <graouts@apple.com>

        [Web Animations] Animation engine should not wake up every tick for steps timing functions
        https://bugs.webkit.org/show_bug.cgi?id=212103
        <rdar://problem/62737868>

        Reviewed by Simon Fraser.

        Allow Seconds to be divided or multiplied by a double with operands in any order.

        * wtf/Seconds.h:
        (WTF::operator*):
        (WTF::operator/):

2020-05-20  Youenn Fablet  <youenn@apple.com>

        [Mac] Use preferedPixelBufferFormat for AVVideoCaptureSource
        https://bugs.webkit.org/show_bug.cgi?id=212071

        Reviewed by Eric Carlson.

        * wtf/PlatformHave.h:
        Add HAVE_DISPLAY_LAYER_BIPLANAR_SUPPORT macro.

2020-05-19  Adrian Perez de Castro  <aperez@igalia.com>

        WTF::LockedPrintStream should be final
        https://bugs.webkit.org/show_bug.cgi?id=212107

        Reviewed by Darin Adler.

        * wtf/LockedPrintStream.h: Make class WTF::LockedPrintStream final.

2020-05-19  Mark Lam  <mark.lam@apple.com>

        Put PtrTagLookup data structures in Configs for freezing.
        https://bugs.webkit.org/show_bug.cgi?id=212089
        <rdar://problem/63401487>

        Reviewed by Robin Morisset.

        * wtf/PtrTag.cpp:
        (WTF::tagForPtr):
        (WTF::ptrTagName):
        (WTF::registerPtrTagLookup):
        * wtf/PtrTag.h:
        (WTF::PtrTagLookup::initialize):
        * wtf/WTFConfig.h:

2020-05-19  Mark Lam  <mark.lam@apple.com>

        Remove unnecessary debug logging from release builds.
        https://bugs.webkit.org/show_bug.cgi?id=212084
        <rdar://problem/63398704>

        Reviewed by Saam Barati.

        * wtf/PtrTag.h:

2020-05-18  Andy Estes  <aestes@apple.com>

        http/tests/ssl/applepay/ApplePayInstallmentConfiguration.https.html fails in public SDK builds
        https://bugs.webkit.org/show_bug.cgi?id=212000
        <rdar://problem/63323082>

        Reviewed by Youenn Fablet.

        * wtf/PlatformEnableCocoa.h:
        * wtf/PlatformHave.h:

2020-05-18  Mark Lam  <mark.lam@apple.com>

        Implement a faster findBitInWord() using the hardware ctz instruction.
        https://bugs.webkit.org/show_bug.cgi?id=212032
        <rdar://problem/63348086>

        Reviewed by Saam Barati.

        Based on local microbenchmarking, both ARM64 and X86_64 shows a speed up of
        28% - 95% faster than the loop.

        The largest perf regressions for ctz vs the loop, are when finding 1 in a mostly
        set word or finding 0 in a mostly cleared word. For example, on X86_64:
            Find 1 in 0xffffffffffffffff: using loop 8.67 ms, using ctz 6.07 ms, delta 30.0%
            Find 0 in 0x8000000000000000: using loop 9.01 ms, using ctz 6.54 ms, delta 28.1%

        The largest perf progressions for ctz vs the loop, are the opposite: finding 1 in
        a mostly cleared word, or finding a 0 in a mostly set word. For example, on X86_64:
            Find 1 in 0x8000000000000000: using loop 91.4 ms, using ctz 6.48 ms, delta 92.9%
            Find 0 in 0xffffffffffffffff: using loop 91.7 ms, using ctz 6.95 ms, delta 92.4%

        TL;DR: the microbenchmark methodology used:

        findBitInWord() takes:
            a. word to scan
            b. startIndex
            c. endIndex
            d. bool value to scan for, either 1 or 0.

        1. Randomly select 1000 startIndex and endIndex pairs.
           The endIndex is guaranteed to be >= startIndex.

        2. Using a base word of 0xffffffffffffffff (or uint64_t) and 0xffffffff (for uint32_t),
           shift left by 0 - N (where N is the number of bits in the word) to generate
           N + 1 words for the test.  This produces words with contiguous lengths of 1s
           and 0s.  We're choosing these words to deliberately measure the effects o
           run lengths of 0s or 1s on the algorithm in use.

        3. For each test word, call findBitInWord() with the start and end indexes chosen
           in 1 for a 100 iterations.

        4. Run (3) once to search for a true value, and once to search for a false value.

        5. Print the results for each test word and value pair.

        * wtf/BitVector.cpp:
        * wtf/Bitmap.h:
        * wtf/StdLibExtras.h:
        (WTF::findBitInWord):

2020-05-18  Darin Adler  <darin@apple.com>

        Add iterator checking to ListHashSet
        https://bugs.webkit.org/show_bug.cgi?id=211669

        Reviewed by Anders Carlsson.

        HashSet and HashMap have iterator checking in debug builds.
        Add similar checking to ListHashSet, controlled by the same
        macro, CHECK_HASHTABLE_ITERATORS. Use WeakPtr to make the
        implementation simple.

        * wtf/Forward.h: Update to add a second parameter to WeakPtr.
        Also rearranged and tweaked the file a bug.

        * wtf/ListHashSet.h: Make ListHashSet and ListHashSetNode derive
        from CanMakeWeakPtr. Add m_weakSet and m_weakPosition members to
        ListHashSetConstIterator, and assert their values at the appropriate
        times so we will get a breakpoint or crash.

        * wtf/WeakHashSet.h: Updated to add a Counter argument for testing.

        * wtf/WeakPtr.h: Removed the DID_CREATE_WEAK_PTR_IMPL and
        WILL_DESTROY_WEAK_PTR_IMPL macros, which didn't really work because
        using them violated the C++ one-definition rule. Replaced with
        a Counter argument, which defaults to EmptyCounter, which is inlines
        that do nothing. This required some updates to the classes and
        functions to make them work with a second argument.

2020-05-15  Alex Christensen  <achristensen@webkit.org>

        Make host parser fail on ^
        https://bugs.webkit.org/show_bug.cgi?id=211901

        Reviewed by Geoffrey Garen.

        This matches the behavior of Chrome and Firefox, and now the specification!
        I updated the URL wpt data, and this introduces new PASSes.

        * wtf/URLParser.cpp:
        (WTF::isC0Control):
        (WTF::isForbiddenHostCodePoint):

2020-05-14  Wenson Hsieh  <wenson_hsieh@apple.com>

        [macOS] Update the placeholder icon image for attachment elements with progress="0"
        https://bugs.webkit.org/show_bug.cgi?id=211898
        <rdar://problem/63203900>

        Reviewed by Timothy Hatcher.

        Add a new flag for HAVE(SYSTEM_ATTACHMENT_PLACEHOLDER_ICON).

        * wtf/PlatformHave.h:

2020-05-14  Chris Dumez  <cdumez@apple.com>

        Regression(r254856) Family Health iOS app is broken due to lack for WebSQL support
        https://bugs.webkit.org/show_bug.cgi?id=211896
        <rdar://problem/63025045>

        Reviewed by Maciej Stachowiak.

        * wtf/spi/darwin/dyldSPI.h:

2020-05-13  Ross Kirsling  <ross.kirsling@sony.com>

        [IWYU] Try removing redundant includes in WTF implementation files
        https://bugs.webkit.org/show_bug.cgi?id=211821

        Reviewed by Simon Fraser.

        * wtf/Assertions.cpp:
        * wtf/Bag.cpp:
        * wtf/BitVector.cpp:
        * wtf/ConcurrentBuffer.cpp:
        * wtf/ConcurrentPtrHashSet.cpp:
        * wtf/CrossThreadCopier.cpp:
        * wtf/CurrentTime.cpp:
        * wtf/DataLog.cpp:
        * wtf/DateMath.cpp:
        * wtf/FastBitVector.cpp:
        * wtf/FastMalloc.cpp:
        * wtf/FileSystem.cpp:
        * wtf/Gigacage.cpp:
        * wtf/HashTable.cpp:
        * wtf/JSValueMalloc.cpp:
        * wtf/Language.cpp:
        * wtf/MainThread.cpp:
        * wtf/MetaAllocator.cpp:
        * wtf/MonotonicTime.cpp:
        * wtf/NumberOfCores.cpp:
        * wtf/OSLogPrintStream.cpp:
        * wtf/ParallelHelperPool.cpp:
        * wtf/ParkingLot.cpp:
        * wtf/PrintStream.cpp:
        * wtf/RAMSize.cpp:
        * wtf/RandomDevice.cpp:
        * wtf/RandomNumber.cpp:
        * wtf/RefCountedArray.cpp:
        * wtf/RefCountedLeakCounter.cpp:
        * wtf/SegmentedVector.cpp:
        * wtf/SmallPtrSet.cpp:
        * wtf/StackBounds.cpp:
        * wtf/ThreadGroup.cpp:
        * wtf/Threading.cpp:
        * wtf/TimeWithDynamicClockType.cpp:
        * wtf/URL.cpp:
        * wtf/URLParser.cpp:
        * wtf/UUID.cpp:
        * wtf/UniqueArray.cpp:
        * wtf/Vector.cpp:
        * wtf/WTFConfig.cpp:
        * wtf/WallTime.cpp:
        * wtf/WordLock.cpp:
        * wtf/WorkQueue.cpp:
        * wtf/WorkerPool.cpp:
        * wtf/generic/WorkQueueGeneric.cpp:
        * wtf/posix/OSAllocatorPOSIX.cpp:
        * wtf/posix/ThreadingPOSIX.cpp:
        * wtf/text/AtomString.cpp:
        * wtf/text/AtomStringImpl.cpp:
        * wtf/text/AtomStringTable.cpp:
        * wtf/text/CString.cpp:
        * wtf/text/StringBuffer.cpp:
        * wtf/text/StringBuilder.cpp:
        * wtf/text/StringImpl.cpp:
        * wtf/text/StringView.cpp:
        * wtf/text/TextBreakIterator.cpp:
        * wtf/text/TextStream.cpp:
        * wtf/text/WTFString.cpp:
        * wtf/threads/Signals.cpp:

2020-05-13  Jer Noble  <jer.noble@apple.com>

        Replace isNullFunctionPointer with real weak-linking support
        https://bugs.webkit.org/show_bug.cgi?id=211751

        Reviewed by Sam Weinig.

        Replace isNullFunctionPointer with a macro which explicitly marks symbols as weakly imported.

        * wtf/darwin/WeakLinking.h:
        (WTF::isNullFunctionPointer): Deleted.

2020-05-12  Mark Lam  <mark.lam@apple.com>

        catch_mach_exception_raise_state() should fail early if the faulting address is not of interest.
        https://bugs.webkit.org/show_bug.cgi?id=211799
        <rdar://problem/62939204>

        Reviewed by Saam Barati.

        * wtf/threads/Signals.cpp:

2020-05-12  Jer Noble  <jer.noble@apple.com>

        REGRESSION(r258314): 5% regression on Membuster5
        https://bugs.webkit.org/show_bug.cgi?id=211803
        <rdar://problem/60609824>

        Reviewed by Darin Adler.

        Disable HAVE(AVSAMPLEBUFFERVIDEOOUTPUT), as it caused a large regression in our Membuster5 benchmark.

        * wtf/PlatformHave.h:

2020-05-12  Ross Kirsling  <ross.kirsling@sony.com>

        Fix existing usage of final/override/virtual in JSC and WTF
        https://bugs.webkit.org/show_bug.cgi?id=211772

        Reviewed by Darin Adler.

        * wtf/Assertions.cpp:
        * wtf/Expected.h:
        * wtf/FilePrintStream.h:
        * wtf/JSONValues.h:
        * wtf/LockedPrintStream.h:
        * wtf/OSLogPrintStream.h:
        * wtf/ParallelHelperPool.cpp:
        * wtf/RunLoop.h:
        * wtf/SharedTask.h:
        * wtf/StringPrintStream.h:
        * wtf/WorkQueue.h:
        * wtf/WorkerPool.cpp:

2020-05-11  Darin Adler  <darin@apple.com>

        Fix problems caught by replacing WTF::Optional with std::optional
        https://bugs.webkit.org/show_bug.cgi?id=211703

        Reviewed by Chris Dumez.

        * wtf/URLHelpers.cpp:
        (WTF::URLHelpers::mapHostName): Make URLDecodeFunction a function
        pointer and use nullptr instead of trying to use Optional<> with
        a function reference.
        (WTF::URLHelpers::collectRangesThatNeedMapping): Ditto.
        (WTF::URLHelpers::applyHostNameFunctionToMailToURLString): Ditto.
        (WTF::URLHelpers::applyHostNameFunctionToURLString): Ditto.
        (WTF::URLHelpers::mapHostNames): Ditto.
        (WTF::URLHelpers::userVisibleURL): Ditto.
        * wtf/URLHelpers.h: Ditto.

        * wtf/cocoa/NSURLExtras.mm:
        (WTF::decodeHostName): Pass nullptr for URLDecodeFunction.

2020-05-11  Yusuke Suzuki  <ysuzuki@apple.com>

        AtomString::init should temporarily disable checks via `isMainThread` due to WebThread's inconsistent state
        https://bugs.webkit.org/show_bug.cgi?id=211754

        Reviewed by Dean Jackson.

        When starting WebThread via StartWebThread function, we have special period between the prologue of StartWebThread and spawning WebThread actually.
        In this period, `isMainThread()` returns false even if this is called on the main thread since WebThread is now enabled and we are not taking a WebThread lock.
        This causes assertion hits in MainThreadLazyNeverDestroyed initialization only in WebThread platforms.

        This patch takes conservative approach to fix this assertion hits: just bypass these assertions since this should not be fired. We bypass assertions by using
        constructWithoutAccessCheck, which intentionally skips `isMainThread()` check for construction. In non WebThread environment, we do not lose the assertion
        coverage since we already have ASSERT(isUIThread()). And ASSERT(isUIThread()) ensures that this is called in system main thread in WebThread platforms.

        Unfortunately, we have no mechanism to test this effectively. WK1 LayoutTests runner cannot show assertions since WK1 runners already initialize necessary
        things somewhere before calling AtomString::init() in StartWebThread. This is the same in TestWebKitAPI. For now, I manually tested that assertion does not fire.

        * wtf/NeverDestroyed.h:
        (WTF::LazyNeverDestroyed::construct):
        (WTF::LazyNeverDestroyed::constructWithoutAccessCheck):
        (WTF::LazyNeverDestroyed::storagePointerWithoutAccessCheck const):
        (WTF::LazyNeverDestroyed::storagePointer const):
        * wtf/text/AtomString.cpp:
        (WTF::AtomString::init):

2020-05-11  Basuke Suzuki  <basuke.suzuki@sony.com>

        [bmalloc][WTF] Add computing memory size implementation for FreeBSD
        https://bugs.webkit.org/show_bug.cgi?id=211749

        Reviewed by David Kilzer.

        Share sysinfo(3) implementation with Linux and FreeBSD.

        * wtf/RAMSize.cpp:
        (WTF::computeRAMSize):

2020-05-11  Mark Lam  <mark.lam@apple.com>

        Introduce WTF::Config and put Signal.cpp's init-once globals in it.
        https://bugs.webkit.org/show_bug.cgi?id=211729
        <rdar://problem/62938878>

        Reviewed by Keith Miller and Saam Barati.

        1. Added WTF::Config for storing globals that effectively serve as constants i.e
           we'll be initializing them before or during the first VM instantiation, but
           should not have any reason to modify them later.  The WTF::Config will be frozen
           (along with JSC::Config) at the end of instantiating the first VM instance.

        2. Added a Config::AssertNotFrozenScope RAII object to ensure that initialization
           operations that should only be called at initialization time, will not be
           called once the Config has been frozen.

        3. Moved most of Signal.cpp's globals into WTF::Config.  The only globals (or
           statics) not moved are ones that cannot be moved because they require a
           non-trivial default constructor (once_flag), or need to be modifiable
           at runtime (e.g. Lock).

           Instead of freezing the once_flag, we sanity check the call_once block with
           the Config::AssertNotFrozenScope.

        4. SignalHandler records are now allocated from arrays of SignalHandlerMemory in
           the WTF::Config.  The number of signal handlers we will ever install is always
           finite.  Hence, there's no reason to use a dynamic data structure like the
           LocklessBag to hold it.

           We introduce a SignalHandlers struct to manage these arrays (and all the other
           Signal.cpp globals that we want to move to the WTF::Config).  Amongst other
           things, SignalHandlers provides the abstractions for:

           a. allocating memory for the SignalHandler instances.  See SignalHandlers::alloc().
           b. iterating SignalHandler instances. See SignalHandlers::forEachHandler().

           To maintain the synchronization properties of the LocklessBag,
           SignalHandlers::alloc() uses a mutex.  In practice, this mutex will never be
           contended on because all signal handlers are now installed at initialization
           time before any concurrency comes into play.

        5. We now initialize activeThreads() eagerly via initializeThreading.  In
           production configurations, this does not matter because signal handler
           installations will always trigger its initialization.  However, in debugging
           configurations, we may end up disabling the use of all signal handlers.  As a
           result, we need to do this eager initialization to ensure that it is done
           before we freeze the WTF::Config.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Threading.cpp:
        (WTF::initializeThreading):
        * wtf/WTFConfig.cpp: Added.
        (WTF::Config::disableFreezingForTesting):
        (WTF::Config::permanentlyFreeze):
        * wtf/WTFConfig.h: Added.
        (WTF::Config::configureForTesting):
        (WTF::Config::AssertNotFrozenScope::~AssertNotFrozenScope):
        * wtf/threads/Signals.cpp:
        (WTF::SignalHandlers::alloc):
        (WTF::SignalHandlers::forEachHandler const):
        (WTF::startMachExceptionHandlerThread):
        (WTF::handleSignalsWithMach):
        (WTF::setExceptionPorts):
        (WTF::activeThreads):
        (WTF::installSignalHandler):
        (WTF::jscSignalHandler):
        (WTF::SignalHandlers::initialize):
        * wtf/threads/Signals.h:

2020-05-11  David Kilzer  <ddkilzer@apple.com>

        [WTF] CStringBuffer::createUninitialized() should use Checked<size_t>
        <https://webkit.org/b/211746>
        <rdar://problem/62729848>

        Reviewed by Darin Adler.

        * wtf/text/CString.cpp:
        (WTF::CStringBuffer::createUninitialized):
        - Switch from RELEASE_ASSERT() to Checked<size_t>() for overflow
          check.  RELEASE_ASSERT() was using the wrong type, too.

2020-05-11  Ryan Haddad  <ryanhaddad@apple.com>

        Unreviewed, reverting r261440.

        Caused 6 TestWTF.WTF failures

        Reverted changeset:

        "Add iterator checking to ListHashSet"
        https://bugs.webkit.org/show_bug.cgi?id=211669
        https://trac.webkit.org/changeset/261440

2020-05-11  Tetsuharu Ohzeki  <tetsuharu.ohzeki@gmail.com>

        Use alias template for <type_traits> in WTF/wtf/TypeCast.h
        https://bugs.webkit.org/show_bug.cgi?id=211714

        Reviewed by Darin Adler.

        * wtf/TypeCasts.h:
        (WTF::TypeCastTraits::isOfType):
        (WTF::is):
        (WTF::downcast):

2020-05-10  Darin Adler  <darin@apple.com>

        Add copy constructor and assignment operator to Ref<>
        https://bugs.webkit.org/show_bug.cgi?id=211705

        Reviewed by Sam Weinig.

        As recently discussed in some WebKit bug patch review, we think that Ref and RefPtr
        should have the same design, except for whether the value can be null. Ref had a
        more ambitious approach to avoiding reference count churn, requiring a
        call to copyRef to make any copying explicit, partly by analogy with raw C
        references, which also can't be copied (but they can't be moved either). We choose
        to change Ref to match RefPtr and to take the risk of additional churn. This makes
        it easier to use Ref in contexts like collection classes and structures. An
        alternative would be to go the other direction, and make RefPtr require a call to
        copyRef: seems like an obviously worse option.

        * wtf/Ref.h: Add the copy constructor and assignment operator.
        These follow a similar pattern to the move constructor and assignment operator.
        Also add a deprecation comment before copyRef, which we will eventually remove.

2020-05-10  Tetsuharu Ohzeki  <tetsuharu.ohzeki@gmail.com>

        Use alias template to define `match_constness_t` in Wtf/wtp/TypeCasts.h
        https://bugs.webkit.org/show_bug.cgi?id=211698

        Reviewed by Yusuke Suzuki.

        * wtf/TypeCasts.h:
        (WTF::downcast):

2020-05-10  Basuke Suzuki  <basuke.suzuki@sony.com>

        Add ENABLE_PERIODIC_MEMORY_MONITOR flag.
        https://bugs.webkit.org/show_bug.cgi?id=211704

        Reviewed by Yusuke Suzuki.

        Define ENABLE_PERIODIC_MEMORY_MONITOR flags in specific platform file.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:

2020-05-10  Darin Adler  <darin@apple.com>

        Remove now-unneeded HAVE(CORE_VIDEO)
        https://bugs.webkit.org/show_bug.cgi?id=211677

        Reviewed by Dan Bernstein.

        * wtf/PlatformHave.h: Remove HAVE_CORE_VIDEO.

2020-05-09  Darin Adler  <darin@apple.com>

        Delete some dead code in WorkQueueCocoa.cpp
        https://bugs.webkit.org/show_bug.cgi?id=211676

        Reviewed by Chris Dumez.

        * wtf/cocoa/WorkQueueCocoa.cpp:
        (WTF::targetQueueForQOSClass): Deleted.

2020-05-09  Darin Adler  <darin@apple.com>

        Add iterator checking to ListHashSet
        https://bugs.webkit.org/show_bug.cgi?id=211669

        Reviewed by Anders Carlsson.

        HashSet and HashMap have iterator checking in debug builds.
        Add similar checking to ListHashSet, controlled by the same
        macro, CHECK_HASHTABLE_ITERATORS. Use WeakPtr to make the
        implementation simple.

        * wtf/ListHashSet.h: Make ListHashSet and ListHashSetNode derive
        from CanMakeWeakPtr. Add m_weakSet and m_weakPosition members to
        ListHashSetConstIterator, and assert their values at the appropriate
        times so we will get a breakpoint or crash.

2020-05-08  Darin Adler  <darin@apple.com>

        Streamline MarkupAccumulator to improve efficiency a bit
        https://bugs.webkit.org/show_bug.cgi?id=211656

        Reviewed by Anders Carlsson.

        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::isAllASCII const): Added.
        * wtf/text/StringBuilder.h: Added isAllASCII.

2020-05-09  David Quesada  <david_quesada@apple.com>

        Remove HAVE_UI_SCROLL_VIEW_INDICATOR_FLASHING_SPI
        https://bugs.webkit.org/show_bug.cgi?id=211662
        rdar://problem/63048713

        Reviewed by Darin Adler.

        * wtf/PlatformHave.h:

2020-05-08  Basuke Suzuki  <basuke.suzuki@sony.com>

        [WTF] Share Linux's MemoryPressureHandler among other Unix ports
        https://bugs.webkit.org/show_bug.cgi?id=208955

        Reviewed by Yusuke Suzuki.

        Renamed MemoryPressureHandlerLinux to MemoryPressureHandlerUnix and added FreeBSD implementation
        of memory status functions. Change PlayStation port to use it from generic implementation.

        * wtf/MemoryPressureHandler.cpp:
        (WTF::MemoryPressureHandler::MemoryPressureHandler):
        * wtf/MemoryPressureHandler.h:
        * wtf/PlatformGTK.cmake:
        * wtf/PlatformJSCOnly.cmake:
        * wtf/PlatformPlayStation.cmake:
        * wtf/PlatformWPE.cmake:
        * wtf/generic/MemoryFootprintGeneric.cpp:
        (WTF::memoryFootprint):
        * wtf/unix/MemoryPressureHandlerUnix.cpp: Renamed from Source\WTF\wtf\linux\MemoryPressureHandlerLinux.cpp.
        (WTF::processMemoryUsage):

2020-05-08  Darin Adler  <darin@apple.com>

        Remove now-unneeded HAVE(AVFOUNDATION_LOADER_DELEGATE)
        https://bugs.webkit.org/show_bug.cgi?id=211646

        Reviewed by Eric Carlson.

        * wtf/PlatformHave.h: Don't set HAVE_AVFOUNDATION_LOADER_DELEGATE.

2020-05-08  Don Olmstead  <don.olmstead@sony.com>

        [clang-tidy] Run modernize-use-nullptr over WTF
        https://bugs.webkit.org/show_bug.cgi?id=211628

        Reviewed by Yusuke Suzuki.

        Use the fix option in clang-tidy to ensure nullptr is being used across WTF.

        * wtf/Assertions.cpp:
        * wtf/BumpPointerAllocator.h:
        (WTF::BumpPointerPool::BumpPointerPool):
        (WTF::BumpPointerPool::create):
        (WTF::BumpPointerAllocator::BumpPointerAllocator):
        * wtf/DataLog.cpp:
        (WTF::setDataFile):
        * wtf/DateMath.cpp:
        (WTF::parseES5DatePortion):
        (WTF::parseES5TimePortion):
        * wtf/FastMalloc.cpp:
        (WTF::fastZeroedMalloc):
        (WTF::fastStrDup):
        (WTF::tryFastZeroedMalloc):
        (WTF::isFastMallocEnabled):
        (WTF::fastMallocGoodSize):
        (WTF::fastAlignedMalloc):
        (WTF::tryFastAlignedMalloc):
        (WTF::fastAlignedFree):
        (WTF::tryFastMalloc):
        (WTF::fastMalloc):
        (WTF::tryFastCalloc):
        (WTF::fastCalloc):
        (WTF::fastFree):
        (WTF::fastRealloc):
        (WTF::tryFastRealloc):
        (WTF::releaseFastMallocFreeMemory):
        (WTF::releaseFastMallocFreeMemoryForThisThread):
        (WTF::fastMallocStatistics):
        (WTF::fastMallocSize):
        (WTF::fastCommitAlignedMemory):
        (WTF::fastDecommitAlignedMemory):
        (WTF::fastEnableMiniMode):
        (WTF::fastDisableScavenger):
        (WTF::fastMallocDumpMallocStats):
        (WTF::AvoidRecordingScope::avoidRecordingCount):
        (WTF::AvoidRecordingScope::AvoidRecordingScope):
        (WTF::AvoidRecordingScope::~AvoidRecordingScope):
        (WTF::MallocCallTracker::MallocSiteData::MallocSiteData):
        (WTF::MallocCallTracker::singleton):
        (WTF::MallocCallTracker::MallocCallTracker):
        (WTF::MallocCallTracker::recordMalloc):
        (WTF::MallocCallTracker::recordRealloc):
        (WTF::MallocCallTracker::recordFree):
        (WTF::MallocCallTracker::dumpStats):
        * wtf/HashTable.h:
        (WTF::KeyTraits>::inlineLookup):
        (WTF::KeyTraits>::lookupForWriting):
        (WTF::KeyTraits>::fullLookupForWriting):
        (WTF::KeyTraits>::add):
        * wtf/MetaAllocator.cpp:
        (WTF::MetaAllocator::findAndRemoveFreeSpace):
        * wtf/ParallelJobsGeneric.cpp:
        * wtf/RandomDevice.cpp:
        (WTF::RandomDevice::cryptographicallyRandomValues):
        * wtf/RawPointer.h:
        (WTF::RawPointer::RawPointer):
        * wtf/RedBlackTree.h:
        * wtf/SHA1.cpp:
        (WTF::SHA1::hexDigest):
        * wtf/SchedulePair.h:
        (WTF::SchedulePair::SchedulePair):
        * wtf/StackTrace.cpp:
        (WTFGetBacktrace):
        (WTF::StackTrace::dump const):
        * wtf/StringExtras.h:
        (strnstr):
        * wtf/Variant.h:
        * wtf/Vector.h:
        (WTF::VectorBufferBase::deallocateBuffer):
        (WTF::VectorBufferBase::releaseBuffer):
        (WTF::VectorBufferBase::VectorBufferBase):
        * wtf/cf/CFURLExtras.cpp:
        (WTF::createCFURLFromBuffer):
        (WTF::getURLBytes):
        * wtf/cf/CFURLExtras.h:
        * wtf/cf/FileSystemCF.cpp:
        (WTF::FileSystem::pathAsURL):
        * wtf/dtoa/double-conversion.cc:
        * wtf/dtoa/utils.h:
        (WTF::double_conversion::BufferReference::BufferReference):
        * wtf/text/CString.cpp:
        (WTF::CString::mutableData):
        * wtf/text/CString.h:
        * wtf/text/StringBuffer.h:
        (WTF::StringBuffer::release):
        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::createUninitializedInternal):
        (WTF::StringImpl::reallocateInternal):
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::constructInternal<LChar>):
        (WTF::StringImpl::constructInternal<UChar>):
        (WTF::StringImpl::characters<LChar> const):
        (WTF::StringImpl::characters<UChar> const):
        (WTF::find):
        (WTF::reverseFindLineTerminator):
        (WTF::reverseFind):
        (WTF::equalIgnoringNullity):
        (WTF::codePointCompare):
        (WTF::isSpaceOrNewline):
        (WTF::lengthOfNullTerminatedString):
        (WTF::StringImplShape::StringImplShape):
        (WTF::StringImpl::isolatedCopy const):
        (WTF::StringImpl::isAllASCII const):
        (WTF::StringImpl::isAllLatin1 const):
        (WTF::isAllSpecialCharacters):
        (WTF::isSpecialCharacter const):
        (WTF::StringImpl::StringImpl):
        (WTF::StringImpl::create8BitIfPossible):
        (WTF::StringImpl::createSubstringSharingImpl):
        (WTF::StringImpl::createFromLiteral):
        (WTF::StringImpl::tryCreateUninitialized):
        (WTF::StringImpl::adopt):
        (WTF::StringImpl::cost const):
        (WTF::StringImpl::costDuringGC):
        (WTF::StringImpl::setIsAtom):
        (WTF::StringImpl::setHash const):
        (WTF::StringImpl::ref):
        (WTF::StringImpl::deref):
        (WTF::StringImpl::copyCharacters):
        (WTF::StringImpl::at const):
        (WTF::StringImpl::allocationSize):
        (WTF::StringImpl::maxInternalLength):
        (WTF::StringImpl::tailOffset):
        (WTF::StringImpl::requiresCopy const):
        (WTF::StringImpl::tailPointer const):
        (WTF::StringImpl::tailPointer):
        (WTF::StringImpl::substringBuffer const):
        (WTF::StringImpl::substringBuffer):
        (WTF::StringImpl::assertHashIsCorrect const):
        (WTF::StringImpl::StaticStringImpl::StaticStringImpl):
        (WTF::StringImpl::StaticStringImpl::operator StringImpl&):
        (WTF::equalIgnoringASCIICase):
        (WTF::startsWithLettersIgnoringASCIICase):
        (WTF::equalLettersIgnoringASCIICase):
        * wtf/text/TextBreakIterator.cpp:
        (WTF::initializeIterator):
        (WTF::setContextAwareTextForIterator):
        (WTF::openLineBreakIterator):
        * wtf/text/TextBreakIterator.h:
        (WTF::LazyLineBreakIterator::get):
        * wtf/text/WTFString.cpp:
        (WTF::charactersToFloat):
        * wtf/text/cf/StringImplCF.cpp:
        (WTF::StringWrapperCFAllocator::allocate):
        (WTF::StringWrapperCFAllocator::create):
        (WTF::StringImpl::createCFString):
        * wtf/text/icu/UTextProviderLatin1.cpp:
        (WTF::uTextLatin1Clone):
        (WTF::openLatin1ContextAwareUTextProvider):
        * wtf/text/icu/UTextProviderUTF16.cpp:
        (WTF::openUTF16ContextAwareUTextProvider):
        * wtf/win/FileSystemWin.cpp:
        (WTF::FileSystemImpl::makeAllDirectories):
        (WTF::FileSystemImpl::storageDirectory):
        (WTF::FileSystemImpl::openTemporaryFile):
        (WTF::FileSystemImpl::openFile):
        (WTF::FileSystemImpl::writeToFile):
        (WTF::FileSystemImpl::readFromFile):
        (WTF::FileSystemImpl::deleteNonEmptyDirectory):
        * wtf/win/LanguageWin.cpp:
        (WTF::localeInfo):
        * wtf/win/MainThreadWin.cpp:
        (WTF::initializeMainThreadPlatform):
        * wtf/win/OSAllocatorWin.cpp:
        (WTF::OSAllocator::reserveUncommitted):
        (WTF::OSAllocator::reserveAndCommit):
        * wtf/win/RunLoopWin.cpp:
        (WTF::RunLoop::run):
        (WTF::RunLoop::iterate):
        (WTF::RunLoop::RunLoop):
        (WTF::RunLoop::cycle):
        (WTF::RunLoop::TimerBase::start):
        * wtf/win/ThreadingWin.cpp:
        (WTF::Thread::establishHandle):

2020-05-08  Darin Adler  <darin@apple.com>

        Make callBufferProducingFunction safer to use by adding a compile-time assertion
        https://bugs.webkit.org/show_bug.cgi?id=211599

        Reviewed by Ross Kirsling.

        * wtf/unicode/icu/ICUHelpers.h:
        (WTF::CallBufferProducingFunction::argumentTuple): Add a static_assert that
        checks these are just simple types, aside from the Vector for the buffer.
        This would have caught the UpconvertedCharacters problem fixed earlier today.

2020-05-08  Don Olmstead  <don.olmstead@sony.com>

        WTF headers should compile independently
        https://bugs.webkit.org/show_bug.cgi?id=211608

        Reviewed by Yusuke Suzuki.

        When a WTF header is included on its own within a source file it should compile.
        These issues were found when working on a tooling build for running static
        analysis over WTF. Forward declarations were used whenever possible otherwise
        an include was used.

        Additionally fix some errors found by Clang 10.

        * wtf/AggregateLogger.h:
        * wtf/CallbackAggregator.h:
        * wtf/Dominators.h:
        * wtf/HashIterators.h:
        * wtf/IndexSparseSet.h:
        * wtf/LoggingHashMap.h:
        * wtf/LoggingHashTraits.h:
        * wtf/RunLoopTimer.h:
        * wtf/Stopwatch.h:
        * wtf/Threading.h:
        * wtf/cf/RunLoopTimerCF.cpp:
        * wtf/persistence/PersistentCoder.h:
        * wtf/text/LineBreakIteratorPoolICU.h:
        * wtf/text/NullTextBreakIterator.h:
        * wtf/text/StringOperators.h:
        * wtf/text/StringToIntegerConversion.h:
        * wtf/text/cf/TextBreakIteratorCF.h:
        * wtf/text/icu/TextBreakIteratorICU.h:
        * wtf/text/win/WCharStringExtras.h:

2020-05-07  Don Olmstead  <don.olmstead@sony.com>

        Remove unused USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR)
        https://bugs.webkit.org/show_bug.cgi?id=211582

        Reviewed by Fujii Hironori.

        After r261264 all ports implemented USE_REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR.

        * wtf/PlatformUse.h:

2020-05-07  Mark Lam  <mark.lam@apple.com>

        Give the DFG and FTL WorkList threads more stack space on ASAN builds.
        https://bugs.webkit.org/show_bug.cgi?id=211535
        <rdar://problem/62947884>

        Reviewed by Geoffrey Garen.

        1. Add the ability to set the ThreadType for AutomaticThreads.
        2. Give ThreadType::Compiler (which currently only used for the DFG anf FTL
           WorkList threads) a larger stack for OS(DARWIN) on ASAN builds.

           This is needed because ASAN is a memory hungry beast, and we want the ASAN
           builds to get to exercise the same amount of code a regular build will (instead
           of failing out early with a stack overflow error).

        * wtf/AutomaticThread.cpp:
        (WTF::AutomaticThread::AutomaticThread):
        (WTF::AutomaticThread::start):
        * wtf/AutomaticThread.h:
        * wtf/Threading.cpp:
        (WTF::stackSize):
        * wtf/Threading.h:

2020-05-07  Mark Lam  <mark.lam@apple.com>

        Add stack checks to the DFG and FTL bytecode parser.
        https://bugs.webkit.org/show_bug.cgi?id=211547
        <rdar://problem/62958880>

        Reviewed by Yusuke Suzuki.

        Added a StackCheck::Scope RAII object to help verify that the default reserved
        zone size is at least adequate for known work loads.  If this the StackCheck::Scope
        assertions fail, then we either need more stack checks, or the reserved zone size
        needs to be increased.

        Note that the assertions are usually only on in Debug builds.  Ideally, we would
        want to measure the reserved zone size with a Release build.  To do that, we
        can just set VERIFY_STACK_CHECK_RESERVED_ZONE_SIZE to 1 unconditionally in
        StackCheck.h and rebuild.

        * wtf/StackCheck.h:
        (WTF::StackCheck::Scope::Scope):
        (WTF::StackCheck::Scope::~Scope):
        (WTF::StackCheck::Scope::isSafeToRecurse):
        (WTF::StackCheck::StackCheck):

2020-05-06  Yoshiaki Jitsukawa  <yoshiaki.jitsukawa@sony.com> and Fujii Hironori  <Hironori.Fujii@sony.com>

        [Win] Implement DisplayRefreshMonitor by using RunLoop::Timer
        https://bugs.webkit.org/show_bug.cgi?id=211431

        Reviewed by Don Olmstead.

        USE_REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR is turned off only for Windows ports.
        Turn it on, and add DisplayRefreshMonitorWin.

        I'll remove USE_REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR macro in a follow-up patch.

        * wtf/PlatformUse.h:

2020-05-06  Darin Adler  <darin@apple.com>

        Make a helper for the pattern of ICU functions that may need to be called twice to populate a buffer
        https://bugs.webkit.org/show_bug.cgi?id=211499

        Reviewed by Ross Kirsling.

        This first cut version is ready to be used in most, but not all, of the places we use the
        needsToGrowToProduceBuffer function. The places it is not right for yet are ones that have
        special considerations because of null character termination or destinations that are
        not a Vector. Later we can refine that further, if we like, and possibly use something
        similar in call sites that use needsToGrowToProduceCString as well.

        * wtf/unicode/icu/ICUHelpers.h:
        (WTF::needsToGrowToProduceBuffer): Changed to constexpr, since we can.
        (WTF::needsToGrowToProduceCString): Ditto.
        (WTF::CallBufferProducingFunction::findVector): Added. Implementation detail
        of callBufferProducingFunction.
        (WTF::CallBufferProducingFunction::argumentTuple): Ditto.
        (WTF::callBufferProducingFunction): Added.

2020-05-06  Alex Christensen  <achristensen@webkit.org>

        Reduce IPC overhead for message receiver name and message name to 2 bytes
        https://bugs.webkit.org/show_bug.cgi?id=211112

        Reviewed by Chris Dumez.

        * wtf/EnumTraits.h:

2020-05-06  Darin Adler  <darin@apple.com>

        Remove now-unneeded USE(GRAMMAR_CHECKING)
        https://bugs.webkit.org/show_bug.cgi?id=211452

        Reviewed by Anders Carlsson.

        * wtf/PlatformUse.h: Don't set USE_GRAMMAR_CHECKING.

2020-05-06  Devin Rousso  <drousso@apple.com>

        ASSERT_WITH_MESSAGE(m_isOwnedByMainThread == isMainThread()) when web inspecting
        https://bugs.webkit.org/show_bug.cgi?id=203638
        <rdar://problem/56761893>

        Reviewed by Brian Burg.

        * wtf/Stopwatch.h:
        (WTF::Stopwatch::elapsedTime const): Added.
        (WTF::Stopwatch::elapsedTimeSince const): Added.
        (WTF::Stopwatch::elapsedTime): Deleted.
        (WTF::Stopwatch::elapsedTimeSince): Deleted.

2020-05-06  Darin Adler  <darin@apple.com>

        Reduce HAVE(HOSTED_CORE_ANIMATION)
        https://bugs.webkit.org/show_bug.cgi?id=211423

        Reviewed by Anders Carlsson.

        * wtf/PlatformHave.h: Simplified conditional to just PLATFORM(MAC)
        for HOSTED_CORE_ANIMATION.

2020-05-05  Darin Adler  <darin@apple.com>

        Remove HAVE(AVFOUNDATION_LEGIBLE_OUTPUT_SUPPORT)
        https://bugs.webkit.org/show_bug.cgi?id=211461

        Reviewed by Eric Carlson.

        * wtf/PlatformHave.h: Don't define HAVE_AVFOUNDATION_LEGIBLE_OUTPUT_SUPPORT.

2020-05-05  Mark Lam  <mark.lam@apple.com>

        Allow Bitmap to use up to a UCPURegister word size for internal bit storage.
        https://bugs.webkit.org/show_bug.cgi?id=211328
        <rdar://problem/62755865>

        Reviewed by Yusuke Suzuki.

        1. Moved the definition of CPURegister and UCPURegister down into WTF.
           Added CPU(REGISTER64) and CPU(REGISTER32) for determining what size a CPU
           general purpose register is.

        2. Updated Bitmap so that it will automatically choose the minimal required
           word size for the number of bits it needs to store.  This means the Bitmap
           can automatically choose a WordType from uint8_t up to UCPURegister.
           Previously, the WordType is always uint32_t by default.

           This should improve perf with use of Bitmap on 64-bit platforms.  The size
           optimization is necessary to prevent bloat on 64-bit platforms which would have
           resulted if we simply set the default to always be UCPURegister.

        3. Added a check in findRunOfZeros() for handling the edge case where the
           requested runLength exceeds the bitmapSize.

        4. Fixed a bug in count() that was unnecessarily casting the bits to unsigned
           instead of just using the Bitmap WordType.  As a result, when using a WordType
           of uint64_t, it was discarding bits from the count.

        5. Fixed invert() to leave the bits beyond bitmapSize untouched.
           Fixed isFull() to ignore the bits beyond bitmapSize.

           By fixing invert() to leave those bits as 0, isEmpty() and hash() will
           continue to work.  Otherwise, inverting those bits will cause isEmpty() to
           always fail, and hash()'s result may be different for the same set of bit
           values within bitmapSize.

           isFull(), on the other hand, checks for set bits in the words.  Since there
           may be 0 valued bits beyond bitmapSize, isFull() needs to be fixed to ignore
           those.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Bitmap.h:
        (WTF::WordType>::invert):
        (WTF::WordType>::findRunOfZeros const):
        (WTF::WordType>::count const):
        (WTF::WordType>::isFull const):
        * wtf/CMakeLists.txt:
        * wtf/PlatformCPU.h:
        * wtf/PlatformUse.h:
        * wtf/StdIntExtras.h: Copied from Source/WTF/wtf/StdIntExtras.h.

2020-05-05  Darin Adler  <darin@apple.com>

        Remove now-unneeded USE(COREMEDIA) and USE(VIDEOTOOLBOX)
        https://bugs.webkit.org/show_bug.cgi?id=211437

        Reviewed by Eric Carlson.

        * wtf/PlatformUse.h: Don't set USE_COREMEDIA or USE_VIDEOTOOLBOX.

2020-05-05  Darin Adler  <darin@apple.com>

        Remove now-uneeded HAVE macros related to PDF
        https://bugs.webkit.org/show_bug.cgi?id=211435

        Reviewed by Anders Carlsson.

        * wtf/PlatformHave.h: Remove HAVE_PDFHOSTVIEWCONTROLLER_SNAPSHOTTING,
        always set for iOS, HAVE_LEGACY_PDF_SUPPORT, always set for all Cocoa
        platforms, and HAVE_PDF_HOST_VIEW_CONTROLLER_WITH_BACKGROUND_COLOR,
        always set for iOS family platforms.

2020-05-05  Darin Adler  <darin@apple.com>

        Remove now-unneeded HAVE(DISALLOWABLE_USER_INSTALLED_FONTS)
        https://bugs.webkit.org/show_bug.cgi?id=211428

        Reviewed by Anders Carlsson.

        * wtf/PlatformHave.h: Don't define HAVE_DISALLOWABLE_USER_INSTALLED_FONTS.

2020-05-04  Darin Adler  <darin@apple.com>

        [Mac] Remove __MAC_OS_X_VERSION_MIN_REQUIRED checks for versions older than 10.14
        https://bugs.webkit.org/show_bug.cgi?id=211420

        Reviewed by Alex Christensen.

        * WTF.xcodeproj/project.pbxproj: Removed DeprecatedSymbolsUsedBySafari.mm.

        * wtf/PlatformEnableCocoa.h: Removed __MAC_OS_X_VERSION_MIN_REQUIRED >= 101400.
        * wtf/PlatformHave.h: Ditto. This leaves behind some cases of
        "PLATFORM(MAC) || PLATFORM(IOS)" that should probably be turned on for watchOS
        and tvOS too, eventually. Also "PLATFORM(MAC) || PLATFORM(IOS) || PLATFORM(MACCATALYST)".

        * wtf/PlatformMac.cmake: Removed DeprecatedSymbolsUsedBySafari.mm.

        * wtf/PlatformUse.h: Removed __MAC_OS_X_VERSION_MIN_REQUIRED >= 101400.

        * wtf/mac/DeprecatedSymbolsUsedBySafari.mm: Removed.

        * wtf/spi/darwin/ProcessMemoryFootprint.h: Removed
        __MAC_OS_X_VERSION_MIN_REQUIRED >= 101400.

2020-05-04  Darin Adler  <darin@apple.com>

        Remove now-unneeded HAVE(SANDBOX_ISSUE_MACH/READ_EXTENSION_TO_PROCESS_BY_AUDIT_TOKEN)
        https://bugs.webkit.org/show_bug.cgi?id=211427

        Reviewed by Alex Christensen.

        * wtf/PlatformHave.h: Remove both macros mentioned in the title above.
        * wtf/spi/darwin/SandboxSPI.h: Remove #if HAVE.

2020-05-04  Darin Adler  <darin@apple.com>

        Remove now-unneeded HAVE(AUTHORIZATION_STATUS_FOR_MEDIA_TYPE)
        https://bugs.webkit.org/show_bug.cgi?id=211426

        Reviewed by Alex Christensen.

        * wtf/PlatformHave.h: Removed code to set HAVE_AUTHORIZATION_STATUS_FOR_MEDIA_TYPE,
        which was doing so on all Cocoa platforms.

2020-05-04  Darin Adler  <darin@apple.com>

        Remove now-unneeded HAVE(ACCESSIBILITY_SUPPORT)
        https://bugs.webkit.org/show_bug.cgi?id=211425

        Reviewed by Alex Christensen.

        * wtf/PlatformHave.h: Don't set HAVE_ACCESSIBILITY_SUPPORT. It was on for all
        Cocoa platform builds.

2020-05-04  Darin Adler  <darin@apple.com>

        Remove now-unneeded HAVE(NETWORK_EXTENSION)
        https://bugs.webkit.org/show_bug.cgi?id=211424

        Reviewed by Alex Christensen.

        * wtf/PlatformHave.h: Don't define HAVE_NETWORK_EXTENSION.

2020-05-04  Darin Adler  <darin@apple.com>

        Remove now-unneeded HAVE(SEC_TRUST_EVALUATE_WITH_ERROR)
        https://bugs.webkit.org/show_bug.cgi?id=211429

        Reviewed by Alex Christensen.

        * wtf/PlatformHave.h: Don't set HAVE_SEC_TRUST_EVALUATE_WITH_ERROR.

2020-05-04  Darin Adler  <darin@apple.com>

        Remove unneeded USE(MEDIAREMOTE)
        https://bugs.webkit.org/show_bug.cgi?id=211385

        Reviewed by Eric Carlson.

        * wtf/PlatformUse.h: Don't set USE_MEDIAREMOTE.

2020-05-04  Darin Adler  <darin@apple.com>

        Remove now-unneded HAVE(WINDOW_SERVER_OCCLUSION_NOTIFICATIONS)
        https://bugs.webkit.org/show_bug.cgi?id=211380

        Reviewed by Sam Weinig.

        * wtf/PlatformHave.h: Don't define HAVE_WINDOW_SERVER_OCCLUSION_NOTIFICATIONS.

2020-05-04  Darin Adler  <darin@apple.com>

        Remove unused USE(COREAUDIO)
        https://bugs.webkit.org/show_bug.cgi?id=211384

        Reviewed by Alex Christensen.

        * wtf/PlatformUse.h: Don't define USE_COREAUDIO.

2020-05-04  Darin Adler  <darin@apple.com>

        Remove now-unneeded HAVE(UI_REMOTE_VIEW)
        https://bugs.webkit.org/show_bug.cgi?id=211382

        Reviewed by Alex Christensen.

        * wtf/PlatformHave.h: Remove code to define HAVE_UI_REMOTE_VIEW.

2020-05-04  Darin Adler  <darin@apple.com>

        Remove now-unneeded HAVE(MENU_CONTROLLER_SHOW_HIDE_API)
        https://bugs.webkit.org/show_bug.cgi?id=211381

        Reviewed by Alex Christensen.

        * wtf/PlatformHave.h: Remove code to set HAVE_MENU_CONTROLLER_SHOW_HIDE_API.

2020-05-04  Darin Adler  <darin@apple.com>

        Remove now-unneeded HAVE(VOUCHERS)
        https://bugs.webkit.org/show_bug.cgi?id=211379

        Reviewed by Alex Christensen.

        * wtf/PlatformHave.h: Remove definition of HAVE_VOUCHERS.

2020-05-04  Darin Adler  <darin@apple.com>

        Remove now-unneeded HAVE(MEDIA_PLAYER)
        https://bugs.webkit.org/show_bug.cgi?id=211378

        Reviewed by Alex Christensen.

        * wtf/PlatformHave.h: Remove code that sets HAVE_MEDIA_PLAYER.

2020-05-04  Darin Adler  <darin@apple.com>

        Remove unused HAVE(STRINGS_H)
        https://bugs.webkit.org/show_bug.cgi?id=211377

        Reviewed by Alex Christensen.

        * wtf/PlatformHave.h: Remove code to set HAVE_STRINGS_H.

2020-05-04  Darin Adler  <darin@apple.com>

        Remove no-longer-needed HAVE(UISCENE)
        https://bugs.webkit.org/show_bug.cgi?id=211376

        Reviewed by Chris Dumez.

        * wtf/PlatformHave.h: Don't define HAVE_UISCENE any more.
        It's always true for PLATFORM(IOS_FAMILY).

2020-05-03  Mark Lam  <mark.lam@apple.com>

        Remove some unused and broken functions in Bitmap.
        https://bugs.webkit.org/show_bug.cgi?id=211368

        Reviewed by Yusuke Suzuki.

        Bitmap::operator[] never worked.  There's currently no way to use it to read a
        bit value.  We also can't use it to set a bit value because it relies on
        Bitmap::iterator::operator= to set the value.  However, Bitmap::iterator stores
        the Bitmap* as a const pointer, and Bitmap::iterator::operator= calls set() on
        the const pointer.  If we try to use operator[] to set a bit, we'll get a
        compilation error.

        This patch removes the 2 variants of Bitmap::operator[] and Bitmap::iterator::operator=.

        * wtf/Bitmap.h:
        (WTF::WordType>::operator): Deleted.
        (WTF::WordType>::operator const const): Deleted.

2020-05-03  Rob Buis  <rbuis@igalia.com>

        atob() should not accept a vertical tab
        https://bugs.webkit.org/show_bug.cgi?id=184529

        Reviewed by Darin Adler.

        Add an option to allow discarding of base64 decoding
        when a vertical tab is encountered.

        * wtf/text/Base64.cpp:
        (WTF::base64DecodeInternal):
        * wtf/text/Base64.h:

2020-05-02  Mark Lam  <mark.lam@apple.com>

        Gardening: rolling out r261050 and r261051.
        https://bugs.webkit.org/show_bug.cgi?id=211328
        <rdar://problem/62755865>

        Not reviewed.

        Appears to make editing/undo-manager/undo-manager-delete-stale-undo-items.html timeout always.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Bitmap.h:
        * wtf/CMakeLists.txt:
        * wtf/StdIntExtras.h: Removed.

2020-05-02  Mark Lam  <mark.lam@apple.com>

        [Follow up] Allow Bitmap to use up to a UCPURegister word size for internal bit storage.
        https://bugs.webkit.org/show_bug.cgi?id=211328
        <rdar://problem/62755865>

        Not reviewed.

        Landing file missed in last commit.

        * wtf/StdIntExtras.h: Added.

2020-05-01  Mark Lam  <mark.lam@apple.com>

        Allow Bitmap to use up to a UCPURegister word size for internal bit storage.
        https://bugs.webkit.org/show_bug.cgi?id=211328
        <rdar://problem/62755865>

        Reviewed by Yusuke Suzuki.

        1. Moved the definition of CPURegister and UCPURegister down into WTF.
        2. Updated Bitmap so that it will automatically choose the minimal required
           word size for the number of bits it needs to store.  This means the Bitmap
           can automatically choose a WordType from uint8_t up to UCPURegister.
           Previously, the WordType is always uint32_t by default.

        This should improve perf with use of Bitmap on 64-bit platforms.  The size
        optimization is necessary to prevent bloat on 64-bit platforms which would have
        resulted if we simply set the default to always be UCPURegister.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Bitmap.h:
        * wtf/CMakeLists.txt:
        * wtf/StdIntExtras.h: Added.

2020-05-01  Saam Barati  <sbarati@apple.com>

        Have a thread local cache for the Wasm LLInt bytecode buffer
        https://bugs.webkit.org/show_bug.cgi?id=211317

        Reviewed by Filip Pizlo and Mark Lam.

        * wtf/Vector.h:
        (WTF::Vector::sizeInBytes const):

2020-05-01  Don Olmstead  <don.olmstead@sony.com>

        [GTK] Add additional exports to support hidden visibility
        https://bugs.webkit.org/show_bug.cgi?id=211246

        Reviewed by Michael Catanzaro.

        * wtf/ASCIICType.cpp:
        * wtf/DateMath.h:
        * wtf/FileSystem.h:
        * wtf/PrintStream.h:
        * wtf/RunLoop.h:
        * wtf/glib/GLibUtilities.h:
        * wtf/glib/GSocketMonitor.h:
        * wtf/glib/SocketConnection.h:
        (WTF::SocketConnection::isClosed const):
        * wtf/linux/CurrentProcessMemoryStatus.h:

2020-05-01  Yusuke Suzuki  <ysuzuki@apple.com>

        Introduce MainThreadNeverDestroyed / MainThreadLazyNeverDestroyed
        https://bugs.webkit.org/show_bug.cgi?id=211264

        Reviewed by Mark Lam.

        Since AtomString has thread-affinity, `static NeverDestroyed<const AtomString>` is basically only safe for the main-thread use.
        We should ensure that this is only used in the main-thread. To do that, this patch introduces MainThreadNeverDestroyed and
        MainThreadLazyNeverDestroyed. They are NeverDestroyed and LazyNeverDestroyed + main-thread assertions.

        * wtf/Forward.h:
        * wtf/NeverDestroyed.h:
        (WTF::AnyThreadsAccessTraits::assertAccess):
        (WTF::MainThreadAccessTraits::assertAccess):
        (WTF::NeverDestroyed::NeverDestroyed):
        (WTF::NeverDestroyed::storagePointer const):
        (WTF::LazyNeverDestroyed::construct):
        (WTF::LazyNeverDestroyed::storagePointer const):
        (WTF::makeNeverDestroyed):
        * wtf/text/AtomString.cpp:
        * wtf/text/AtomString.h:

2020-05-01  Don Olmstead  <don.olmstead@sony.com>

        Use export macros on all platforms
        https://bugs.webkit.org/show_bug.cgi?id=211293

        Reviewed by Michael Catanzaro.

        Always use export macros on all platforms. Remove USE_EXPORT_MACROS and always
        define macros based on the platform. Allow overriding of WTF_EXPORT_PRIVATE otherwise
        use the defaults.

        Remove definition of WTF_HIDDEN_DECLARATION since its not used anywhere.

        * wtf/ExportMacros.h:
        * wtf/PlatformUse.h:

2020-04-30  Ross Kirsling  <ross.kirsling@sony.com>

        TriState should be an enum class and use "Indeterminate" instead of "Mixed"
        https://bugs.webkit.org/show_bug.cgi?id=211268

        Reviewed by Mark Lam.

        The word "indeterminate" comes from boost::tribool.
        A third state is generally not "mixed" but rather unknown.

        * wtf/TriState.h:

2020-04-29  Fujii Hironori  <Hironori.Fujii@sony.com>

        [Win] Deadlock in WTF::Thread::didExit() while WebKitNetworkProcess.exe is exiting
        https://bugs.webkit.org/show_bug.cgi?id=210955

        Reviewed by Don Olmstead.

        The thread_local object of the main thread is destructed after
        Windows terminates other threads. If the terminated thread was
        holding a mutex, trying to lock the mutex causes deadlock.

        * wtf/win/ThreadingWin.cpp:
        (WTF::Thread::ThreadHolder::~ThreadHolder): Do nothing if the
        thread is the main thread.

2020-04-29  Jer Noble  <jer.noble@apple.com>

        [Mac] Adopt kMTSupportNotification_ShouldPlayHDRVideoChanged notification
        https://bugs.webkit.org/show_bug.cgi?id=211028
        <rdar://problem/61173289>

        Reviewed by Aakash Jain.

        Follow-up test failure fix; correct the debug/non-debug variants of SOFT_LINK_FRAMEWORK_FOR_SOURCE_WITH_EXPORT.

        * wtf/win/SoftLinking.h:

2020-04-29  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r260650.
        https://bugs.webkit.org/show_bug.cgi?id=211172

        It is breaking internal bots (Requested by youenn on #webkit).

        Reverted changeset:

        "Call STDynamicActivityAttributionPublisher in the WebProcess"
        https://bugs.webkit.org/show_bug.cgi?id=210772
        https://trac.webkit.org/changeset/260650

2020-04-29  Devin Rousso  <drousso@apple.com>

        Web Inspector: Uncaught Exception: SyntaxError: Unexpected identifier 'E'. Expected either a closing ']' or a ',' following an array element.
        https://bugs.webkit.org/show_bug.cgi?id=211163

        Reviewed by Joseph Pecoraro.

        * wtf/JSONValues.h:
        * wtf/JSONValues.cpp:
        (WTF::JSONImpl::appendDoubleQuotedString):
        (WTF::JSONImpl::Value::escapeString): Added.
        Pull out and expose the logic for escaping strings so it can be used elsewhere.

2020-04-29  Saam Barati  <sbarati@apple.com>

        U_STRING_NOT_TERMINATED_WARNING ICU must be handled when using the output buffer as a C string
        https://bugs.webkit.org/show_bug.cgi?id=211142
        <rdar://problem/62530860>

        Reviewed by Darin Adler.

        Most of our uses of ICU require us to produce a buffer of the correct
        length. We often test if the first call to ICU API succeeds, and if it
        doesn't, we grow to the required buffer size, and try again. However,
        there are a few APIs that we use like this, except that they write their
        output to a C string instead of a buffer.
        
        In a couple scenarios when we were producing C strings, we were only testing
        for the U_BUFFER_OVERFLOW_ERROR, instead of both U_BUFFER_OVERFLOW_ERROR and
        U_STRING_NOT_TERMINATED_WARNING. This patch fixes those bugs. It also
        introduces two new helper methods for testing error codes returned by ICU.
        
        - The first is needsToGrowToProduceBuffer, which returns true if we need to
        grow the buffer and re-call into ICU to get the result.
        - The second is needsToGrowToProduceCString, which returns true if we need to
        grow the buffer and re-call into ICU to produce a valid C string.
        
        I've audited all uses of U_BUFFER_OVERFLOW_ERROR and converted them to use one
        of the above helper methods instead.
        
        The issues in our handling of U_STRING_NOT_TERMINATED_WARNING were caught on iOS JSC
        tests in JSTests/stress/intl-datetimeformat.js

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/text/LineBreakIteratorPoolICU.h:
        (WTF::LineBreakIteratorPool::makeLocaleWithBreakKeyword):
        * wtf/text/StringView.cpp:
        (WTF::normalizedNFC):
        * wtf/unicode/icu/ICUHelpers.h: Added.
        (WTF::needsToGrowToProduceCString):
        (WTF::needsToGrowToProduceBuffer):

2020-04-29  Noam Rosenthal  <noam@webkit.org>

        Add StringView::isAllSpecialCharacters()
        https://bugs.webkit.org/show_bug.cgi?id=211150

        This enables checking for whitespace-only strings without allocating a StringImpl wrapper.

        Reviewed by Darin Adler.

        * wtf/text/StringView.h:
        (WTF::isSpecialCharacter const):

2020-04-27  Ryan Haddad  <ryanhaddad@apple.com>

        [Cocoa] stop using out arguments for document attributes when converting to attributed strings
        https://bugs.webkit.org/show_bug.cgi?id=211048

        Unreviewed partial revert of r260739 to remove unexpected logging that broke Catalina-Release-WK2-Perf tests.

        * wtf/cocoa/URLCocoa.mm:
        (WTF::URL::createCFURL const):

2020-04-26  Darin Adler  <darin@apple.com>

        [Cocoa] stop using out arguments for document attributes when converting to attributed strings
        https://bugs.webkit.org/show_bug.cgi?id=211048

        Reviewed by Sam Weinig.

        * wtf/cocoa/URLCocoa.mm:
        (WTF::URL::createCFURL const): Use init instead of initWithString:@"". The two are
        equivalent in more recent versions of Foundation.

2020-04-26  Yoshiaki Jitsukawa  <yoshiaki.jitsukawa@sony.com>

        [PlayStation] Enable TestWTF and TestWebCore
        https://bugs.webkit.org/show_bug.cgi?id=208849

        Reviewed by Don Olmstead.

        * wtf/PlatformPlayStation.cmake:
        Add WTF_CopySharedLibs() to install dependencies.

2020-04-26  Yusuke Suzuki  <ysuzuki@apple.com>

        Use `static Lock` instead of `static NeverDestroyed<Lock>`
        https://bugs.webkit.org/show_bug.cgi?id=211036

        Reviewed by Darin Adler.

        Lock can be static-initialized since it has constexpr constructor. No need to use NeverDestroyed<Lock>.

        * wtf/Logger.h:
        (WTF::Logger::observerLock):

2020-04-26  Joonghun Park  <jh718.park@samsung.com>

        [WTF] Workaround gcc bug for unsigned bitfield related usual arithmetic conversions
        https://bugs.webkit.org/show_bug.cgi?id=211044

        Reviewed by Darin Adler.

        * wtf/URL.cpp:
        (WTF::URL::setHost):
        (WTF::URL::setHostAndPort):
        (WTF::URL::setUser):
        (WTF::URL::setPassword):

2020-04-25  Joonghun Park  <jh718.park@samsung.com>

        Unreviewed. Remove the bulid warnings below since r260707.
        warning: comparison of integer expressions of different signedness: ‘unsigned int’ and ‘int’ [-Wsign-compare]

        * wtf/URL.cpp:
        (WTF::URL::setHost):
        (WTF::URL::setHostAndPort):
        (WTF::URL::setUser):
        (WTF::URL::setPassword):

2020-04-25  Darin Adler  <darin@apple.com>

        [Cocoa] Deal with another round of Xcode upgrade checks
        https://bugs.webkit.org/show_bug.cgi?id=211027

        Reviewed by Alexey Proskuryakov.

        * WTF.xcodeproj/project.pbxproj: Bump the upgrade check version.
        Add a harmless base localization; this project contains nothing localized.

2020-04-25  Alex Christensen  <achristensen@webkit.org>

        Prepare to remove automatic URL->String conversion operators
        https://bugs.webkit.org/show_bug.cgi?id=211007

        Reviewed by Darin Adler.

        Too many bugs have been caused by the compiler finding a way to make a String from a URL without being visible in the code.
        This does all the easy things to prepare to remove operator String& and operator NSString*.
        The hard things will be done in the smaller patch that actually removes them.

        * wtf/URL.cpp:
        (WTF::URL::protocolIsJavaScript const):
        * wtf/URL.h:

2020-04-25  Darin Adler  <darin@apple.com>

        Move URL to use StringView when returning substrings of the URL
        https://bugs.webkit.org/show_bug.cgi?id=210431

        Reviewed by Anders Carlsson.

        * wtf/URL.cpp: Remove unused CharBuffer type. Remove UCharBuffer
        type and write the type explicitly in the 3 places it's used.
        Removed the invalidPortNumber constant, since we use Optional
        instead of a special port number now.
        (WTF::copyASCII): Remove unnecessary special case for empty string.
        Tweaked coding style and comment a bit.
        (WTF::URL::URL): Streamlined by getting rid of a local variable.
        (WTF::shouldTrimFromURL): Tweaked coding style.
        (WTF::URL::lastPathComponent const): Return a StringView.
        Also, use the pathStart function for clarity.
        (WTF::URL::port const): Use a StringView to call parseUInt16.
        (WTF::URL::protocolHostAndPort const): Optimized to always allocate
        the string in the right size rather than removing characters from it
        after creating it.
        (WTF::decodeEscapeSequence): Added. Factored out from the function
        below to make it a little more readable.
        (WTF::decodeEscapeSequencesFromParsedURL): Convert a null StringView
        to a null String rather than an empty String, use a stack buffer and
        the helper function above, and added some FIXME comments about
        encoding handling.
        (WTF::URL::user const): Simplified by calling encodedUser.
        (WTF::URL::password const): Simplified by calling encodedPassword.
        (WTF::URL::encodedUser const): Return a StringView.
        (WTF::URL::encodedPassword const): Ditto. Also renamed from encodedPass.
        (WTF::URL::fragmentIdentifier const): Ditto.
        (WTF::URL::hasFragmentIdentifier const): Moved to header so it can
        be inlined.
        (WTF::URL::truncatedForUseAsBase const): Renamed from baseAsString.
        This function is currently only used with local file URLs and it's
        not perfectly clear to me precisely what it is for, hence the name
        is not so great.
        (WTF::URL::fileSystemPath const): Removed unneeded check for validity
        since isLocalFile does that check. Removed unneeded typecast now that
        path returns a StringView.
        (WTF::defaultPortForProtocolMapForTesting): Deleted.
        (WTF::ensureDefaultPortForProtocolMapForTesting): Deleted.
        (WTF::registerDefaultPortForProtocolForTesting): Deleted.
        (WTF::clearDefaultPortForProtocolMapForTesting): Deleted.
        (WTF::defaultPortForProtocol): Deleted.
        (WTF::isDefaultPortForProtocol): Deleted.
        (WTF::protocolIsInternal): Rewrote to take a StringView. Before it
        was written as a template that looked like it supported classes other
        than String, but actually would crash if called on a StringView.
        (WTF::URL::protocolIs const): Removed unneeded explicit cast to StringView.
        (WTF::URL::query const): Return a StringView.
        (WTF::URL::path const): Return a StringView, use the pathStart
        function for clarity.
        (WTF::URL::setProtocol): Use a toStringWithoutCopying to save some
        work when making the protocol canonical. Call parse instead of
        creating a URLParser here.
        (WTF::URL::credentialsEnd const): Added. Helper for various functions
        that manipulate the credentials section.
        (WTF::URL::setHost): Take StringView. Streamlined the code by using
        StringView::contains, by using makeString rather than StringBuilder,
        and by calling parse instead of creating a URLParser here.
        (WTF::URL::removePort): Deleted, since setPort takes an Optional now.
        (WTF::URL::setPort): Take Optional<uint16_t>. Call parse instead of
        creating a URLParser here.
        (WTF::URL::removeHostAndPort): Deleted. Callers can pass a null
        StringView to setHostAndPort instead.
        (WTF::URL::setHostAndPort): Take StringView. Don't remove the old
        host and port in the nomral case where we end up overwriting the entire
        URL at the end of the function anyway. Use parseUInt16 instead of
        toIntStrict to check port number for validity, which makes sure we will
        reject port numbers larger than 65535. Use makeString instead of
        StringBuilder and call parse rather than creating a URLParser here.
        (WTF::parse): Added. Helper function for when we create a new string
        and want to parse it as the new contents of the URL. Used in almost
        every setter function.
        (WTF::URL::remove): Added. Helper function for efficiently removing
        a piece of the URL string and re-parsing. Used in many setter functions.
        (WTF::URL::setUser): Take StringView. Use makeString instead of
        StringBuilder, and parse and remove instead of creating a URLParser here.
        (WTF::URL::setPassword): Renamed from setPass. Take StringView.
        Use makeString instead of StringBuilder, and parse and remove instead of
        creating a URLParser here.
        (WTF::URL::removeCredientials): Added. Efficiently removes both the
        user name and password if either is present.
        (WTF::URL::setFragmentIdentifier): Use parse instead of creating
        a URL parser here.
        (WTF::URL::removeFragmentIdentifier): Removed unnecessary checks for
        things already optimized by String::left. Could later consider merging
        this in with setFragmentIdentifier, using a null vs. empty distinction,
        but not doing that for now.
        (WTF::URL::setQuery): Take StringView.
        (WTF::URL::setPath): Take StringView.
        (WTF::stringWithoutQueryOrFragmentIdentifier): Added.
        (WTF::stringWithoutFragmentIdentifier): Added.
        (WTF::equalIgnoringFragmentIdentifier): Simplified implementation by
        using stringWithoutFragmentIdentifier.
        (WTF::equalIgnoringQueryAndFragment): Deleted.
        (WTF::hostsAreEqual): Deleted.
        (WTF::URL::isMatchingDomain const): Take StringView.
        (WTF::protocolIs): Take StringView.
        (WTF::URL::protocolIs): Moved to inline in the header.
        (WTF::URL::strippedForUseAsReferrer const): Rewrite for efficiency.
        (WTF::protocolIsJavaScript): Moved to inline in the header.
        (WTF::protocolIsInHTTPFamily): Take StringView.
        (WTF::aboutBlankURL): Use ASCIILiteral.
        (WTF::aboutSrcDocURL): Use ASCIILiteral.
        (WTF::portAllowed): Removed 65535 as a blocked port; wasn't needed.
        (WTF::mimeTypeFromDataURL): Take StringView.
        (WTF::URL::stringCenterEllipsizedToLength const): Tweaked style.
        (WTF::URL::fakeURLWithRelativePart): Take StringView.
        (WTF::URL::fileURLWithFileSystemPath): Take StringView..
        (WTF::URL::queryWithLeadingQuestionMark const): Added.
        (WTF::URL::fragmentIdentifierWithLeadingNumberSign const): Added.
        (WTF::URL::hostIsIPAddress): Tweak coding style.

        * wtf/URL.h: Made URLTextEncoding destructor protected. Removed
        unused forward declaration of URLHash structure. Use WTF_EXPORT_PRIVATE
        on functions from URL rather than on the whole class, since the style
        checker told me to do that. Moved some inline function bodies out of
        the class definition for clarity and to keep the style checker happy.
        Updated many arguemnts from String to StringView and return values for
        substrings of the URL to StringView. Removed some unused functions and
        some obsolete comments.

        * wtf/cf/CFURLExtras.cpp:
        (WTF::isCFURLSameOrigin): Use hasCredentials.
        * wtf/text/StringView.cpp:
        (WTF::StringView::endsWith const): Added.
        (WTF::parseUInt16): Added.
        (WTF::equalRespectingNullity): Added.
        (WTF::StringView::contains const): Added overload that takes a
        const char* so the call site doesn't have to convert it to a StringView.

        * wtf/text/StringView.h: Updated for the additions above.
        Also added a default start of 0 to the find function.

        * wtf/text/WTFString.cpp:
        (WTF::charactersToIntStrict): Removed unneeded explicit template argument.
        (WTF::charactersToUIntStrict): Ditto.
        (WTF::charactersToInt64Strict): Ditto.
        (WTF::charactersToUInt64Strict): Ditto.
        (WTF::charactersToIntPtrStrict): Ditto.
        (WTF::charactersToInt): Ditto.
        (WTF::charactersToUInt): Ditto.
        (WTF::charactersToInt64): Ditto.
        (WTF::charactersToUInt64): Ditto.
        (WTF::charactersToIntPtr): Ditto.

2020-04-24  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] allThreads registration is racy with allThreads unregistration
        https://bugs.webkit.org/show_bug.cgi?id=210995
        <rdar://problem/61609690>

        Reviewed by Keith Miller.

        There is a race between registering a thread to allThreads and unregistering a thread from allThreads.

            1. Caller: A new thread is created, but not registering it to allThreads yet.
            2. Thread: The thread is running.
            3. Thread: The thread finishes its execution before the thread is registered into allThreads.
            4. Thread: The thread unregisters itself from allThreads.
            5. Caller: Registers the new thread to allThreads after it already finished its execution.
            6. The thread is never removed from allThreads.

        This patch adds m_didUnregisterFromAllThreads flag to Thread, and add the thread to allThreads only when this flag is false.

        Covered by LayoutTests/inspector/cpu-profiler/threads.html.

        * wtf/Threading.cpp:
        (WTF::Thread::create):
        (WTF::Thread::didExit):
        * wtf/Threading.h:
        (WTF::Thread::Thread):

2020-04-24  Alex Christensen  <achristensen@webkit.org>

        REGRESSION(260485) Payment requests don't do anything
        https://bugs.webkit.org/show_bug.cgi?id=210997
        <rdar://problem/62275343>

        Reviewed by Darin Adler.

        We were giving the PKPaymentRequest an NSArray<NSString *> instead of NSArray<NSURL *>.
        This was a problem with all uses of createNSArray with Vector<URL>.
        Now it's fixed with a test.

        * wtf/URL.h:
        * wtf/cocoa/URLCocoa.mm:
        (WTF::makeNSArrayElement):
        (WTF::makeVectorElement):

2020-04-24  Megan Gardner  <megan_gardner@apple.com>

        Make LEGACY_PDF_SUPPORT feature flag.
        https://bugs.webkit.org/show_bug.cgi?id=210868
        <rdar://problem/62199847>

        Reviewed by Tim Horton.

        * wtf/PlatformHave.h:

2020-04-24  Youenn Fablet  <youenn@apple.com> and Luming Yin <luming_yin@apple.com>

        Call STDynamicActivityAttributionPublisher in the WebProcess
        https://bugs.webkit.org/show_bug.cgi?id=210772
        <rdar://problem/62075201>

        Reviewed by Geoffrey Garen.

        * wtf/PlatformHave.h:

2020-04-23  Don Olmstead  <don.olmstead@sony.com>

        [CMake] CMAKE_BINARY_DIR should always be a PRIVATE include directory
        https://bugs.webkit.org/show_bug.cgi?id=196717

        Reviewed by Michael Catanzaro.

        Remove public includes in WTF.

        * wtf/CMakeLists.txt:

2020-04-22  Darin Adler  <darin@apple.com>

        [Cocoa] Build with UChar as char16_t even in builds that use Apple's internal SDK
        https://bugs.webkit.org/show_bug.cgi?id=210845

        Reviewed by Anders Carlsson.

        * Configurations/Base.xcconfig: Move ICU-configuring macros to Platform.h.

        * wtf/Platform.h: Set macros here. The file says not to put things like this in it,
        but in practice this is the right place to put something that we need set consistently
        for all the WebKit projects.
        - U_HIDE_DEPRECATED_API, to make sure we don't use it by accident.
        - U_SHOW_CPLUSPLUS_API=0, to make sure we don't use it by accident.
        - UCHAR_TYPE=char16_t when compiling C++, which is the default on most platforms,
          but not the default in Apple's internal SDK.
        - U_DISABLE_RENAMING when building on Apple platforms, important so we can link
          to an older version of ICU and still load with a newer version.

        * wtf/URL.cpp:
        (WTF::URL::hostAndPort const): Get rid of an obsolete cast to unsigned to work
        around uint16_t not being treated as a number by makeString.

        * wtf/URLHelpers.cpp: Rework to not use deprecated USCRIPT_CODE_LIMIT.
        (WTF::URLHelpers::whiteListIDNScript): Added overloads.
        (WTF::URLHelpers::initializeDefaultIDNScriptWhiteList): Use an array of
        UScriptCode instead of an array of strings.
        (WTF::URLHelpers::allCharactersInIDNScriptWhiteList): Updated for the above.

        * wtf/cocoa/NSURLExtras.mm:
        (WTF::decodePercentEscapes): Use createCFString instead of converting to NString
        and then typecasting.
        (WTF::URLByTruncatingOneCharacterBeforeComponent): Updated to use a constexpr
        instead of a macro.
        (WTF::dataForURLComponentType): Ditto.
        (WTF::URLByRemovingComponentAndSubsequentCharacter): Ditto.
        (WTF::originalURLData): Ditto.

2020-04-22  Claudio Saavedra  <csaavedra@igalia.com>

        [GTK4] Several fixes to GdkEvent APIs for GTK4
        https://bugs.webkit.org/show_bug.cgi?id=210856

        Reviewed by Carlos Garcia Campos.

        * wtf/glib/GTypedefs.h: In GTK4 GdkEvent is a struct.

2020-04-21  Peng Liu  <peng.liu6@apple.com>

        Fix MACCATALYST build failures
        https://bugs.webkit.org/show_bug.cgi?id=210815

        Reviewed by Tim Horton.

        * wtf/PlatformEnable.h:

2020-04-19  Darin Adler  <darin@apple.com>

        [Cocoa] Use createNSArray in many more places that build NSArray objects from C++ collections
        https://bugs.webkit.org/show_bug.cgi?id=210702

        Reviewed by Alex Christensen.

        * wtf/cocoa/VectorCocoa.h: Improved the createNSArray function template:
        1) Skip nil values. This matches what we do with Optional<> in makeVector and
           was always my intention; apparently forgot to do it.
        2) Instead of taking a const reference argument, take a forwarding reference
           and use forwarding when passing collection elements to makeNSArrayElement
           or the passed-in function. Can transfer ownership of collection elements
           as they are transformed into array elements, which makes sense if the
           Objective-C objects are wrappers that take ownership of what's wrapped.
        3) Take any collection that works with std::size and a range-based for loop,
           no longer requiring a size member function. Includes arrays.
        4) Since this now intended for use on collections other than WTF::Vector,
           added "using WTF::createNSArray" since argument-dependent lookup won't
           find the function template in those cases.

2020-04-21  Fujii Hironori  <Hironori.Fujii@sony.com>

        [Win] Use generic WorkQueue instead of WorkQueueWin.cpp
        https://bugs.webkit.org/show_bug.cgi?id=210785

        Reviewed by Darin Adler.

        WorkQueueWin was using random threads to execute dispatched
        functions. This is not desired for IPC::Connection because it
        needs to call CancelIo API in the same thread started aync
        ReadFile operations.

        Implemented RunLoop::dispatchAfter in RunLoopWin.cpp in order to
        use generic WorkQueue.

        * wtf/PlatformWin.cmake:
        * wtf/RunLoop.h: Added DispatchTimer class for USE(WINDOWS_EVENT_LOOP).
        (WTF::RunLoop::DispatchTimer::DispatchTimer):
        (WTF::RunLoop::DispatchTimer::setFunction):
        * wtf/WorkQueue.h: Removed code for USE(WINDOWS_EVENT_LOOP).
        * wtf/win/RunLoopWin.cpp:
        (WTF::RunLoop::dispatchAfter): Added.
        * wtf/win/WorkQueueWin.cpp: Removed.

2020-04-21  Charlie Turner  <cturner@igalia.com>

        [Clang 10] Fix warning: definition of implicit copy assignment operator for 'PageBlock' is deprecated because it has a user-declared copy constructor
        https://bugs.webkit.org/show_bug.cgi?id=210748

        Reviewed by Adrian Perez de Castro.

        Recent Clang's will issue a warning if you declare an explicit
        copy construction, but leave the compiler to fill in an implicit
        assignment operator. I think this is to catch cases where you do
        something exciting in an assignment operator/copy constructor and
        forget to do the same exciting thing in the other.

        * wtf/PageAllocation.h: Import the base's constructor to avoid
        defining our own identical one.
        * wtf/PageBlock.h: Remove trivial constructor and replace with
        member initializers. Remove copy constructor. This looks identical
        to what the compiler would generate anyway.

2020-04-21  Claudio Saavedra  <csaavedra@igalia.com>

        [GTK4] Adapt to GtkIconTheme API changes
        https://bugs.webkit.org/show_bug.cgi?id=210745

        Reviewed by Adrian Perez de Castro.

        * wtf/glib/GTypedefs.h: Remove unneeded GtkIconInfo definition.

2020-04-20  Timothy Horton  <timothy_horton@apple.com>

        Try to fix the build after r260407

        * wtf/PlatformHave.h:

2020-04-20  Peng Liu  <peng.liu6@apple.com>

        Fix build failures when video fullscreen and picture-in-picture is disabled
        https://bugs.webkit.org/show_bug.cgi?id=210777

        Reviewed by Eric Carlson.

        * wtf/PlatformEnable.h:

2020-04-20  Yusuke Suzuki  <ysuzuki@apple.com>

        Add document about WTF malloc-related macros
        https://bugs.webkit.org/show_bug.cgi?id=208367

        Reviewed by Anders Carlsson, Simon Fraser, and Darin Adler.

        This adds document about WTF malloc-related macros since we have bunch of macros now.

        * wtf/FastMalloc.h:

2020-04-20  Darin Adler  <darin@apple.com>

        REGRESSION (r253987): StringImpl::adopt(Vector&&) copies only half of the characters in the Vector when copying across malloc zones
        https://bugs.webkit.org/show_bug.cgi?id=210736

        Reviewed by Yusuke Suzuki.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::replace): Use copyCharacters instead of memcpy.

        * wtf/text/StringImpl.h: Use std::is_same_v instead of std::is_same.
        (WTF::StringImpl::StringImpl): Use copyCharacters instead of memcpy.
        Also drop C-style cast to cast away const.
        (WTF::StringImpl::adopt): Don't even try to adopt across malloc zones.

2020-04-20  Darin Adler  <darin@apple.com>

        Use #import instead of #include in Objective-C and don't use #pragma once
        https://bugs.webkit.org/show_bug.cgi?id=210724

        Reviewed by David Kilzer.

        * wtf/cocoa/Entitlements.mm:
        * wtf/cocoa/FileSystemCocoa.mm:
        * wtf/cocoa/MainThreadCocoa.mm:
        * wtf/cocoa/SystemTracingCocoa.cpp:
        * wtf/mac/DeprecatedSymbolsUsedBySafari.mm:
        * wtf/mac/SchedulePairMac.mm:
        * wtf/text/cocoa/StringCocoa.mm:
        * wtf/text/cocoa/TextStreamCocoa.mm:
        More #import.

2020-04-19  Brady Eidson  <beidson@apple.com>

        Add WKScriptMessageHandler API that asynchronously responds with a promise.
        rdar://problem/57243492 and https://bugs.webkit.org/show_bug.cgi?id=206398

        Reviewed by Andy Estes.

        * wtf/CompletionHandler.h:
        (WTF::CompletionHandlerWithFinalizer<Out): Add a variant of CompletionHandler that allows for a Finalizer function
          to handle cases where the Completion function hasn't been called at destruction time.

2020-04-19  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Enable BigInt
        https://bugs.webkit.org/show_bug.cgi?id=210726

        Reviewed by Mark Lam.

        * wtf/PlatformUse.h:

2020-04-18  Robin Morisset  <rmorisset@apple.com>

        Support an inlined representation in JSValue of small BigInts ("BigInt32")
        https://bugs.webkit.org/show_bug.cgi?id=206182

        Reviewed by Yusuke Suzuki.

        Add a USE(BIGINT32) flag.

        * wtf/PlatformUse.h:

2020-04-18  Keith Miller  <keith_miller@apple.com>

        Redesign how we do for-of iteration for JSArrays
        https://bugs.webkit.org/show_bug.cgi?id=175454

        Reviewed by Filip Pizlo.

        * wtf/EnumClassOperatorOverloads.h:

2020-04-18  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] Move DataRef.h from WebCore to WTF to utilize it in JSC
        https://bugs.webkit.org/show_bug.cgi?id=210689

        Reviewed by Anders Carlsson.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/DataRef.h: Renamed from Source/WebCore/rendering/style/DataRef.h.

2020-04-17  Saam Barati  <sbarati@apple.com>

        GetTypedArrayByteOffset is broken on arm64e
        https://bugs.webkit.org/show_bug.cgi?id=210631

        Reviewed by Mark Lam.

        * wtf/CagedPtr.h:
        (WTF::CagedPtr::rawBits const):

2020-04-17  Peng Liu  <peng.liu6@apple.com>

        Cleanup the macros for video fullscreen and picture-in-picture
        https://bugs.webkit.org/show_bug.cgi?id=210638

        Reviewed by Eric Carlson.

        Add macro ENABLE_VIDEO_PRESENTATION_MODE.

        * wtf/PlatformEnable.h:

2020-04-17  Claudio Saavedra  <csaavedra@igalia.com>

        [GTK][WPE] Bump dependencies minimum required version in Platform.h
        https://bugs.webkit.org/show_bug.cgi?id=210651

        Reviewed by Adrian Perez de Castro.

        Bring the minimum required version in Platform.h in sync with the actual
        minimal required version. This ensures that deprecated APIs used bring up
        compilation warnings.

        * wtf/Platform.h:

2020-04-17  Per Arne Vollan  <pvollan@apple.com>

        [iOS] Deny iokit open access to graphics related classes
        https://bugs.webkit.org/show_bug.cgi?id=210616

        Reviewed by Darin Adler.

        * wtf/spi/darwin/SandboxSPI.h:

2020-04-17  Youenn Fablet  <youenn@apple.com>

        Make use of WeakHashSet for MediaStreamTrackPrivate and RealtimeMediaSource observers
        https://bugs.webkit.org/show_bug.cgi?id=210492

        Reviewed by Geoffrey Garen.

        * wtf/WeakHashSet.h:

2020-04-16  Daniel Bates  <dabates@apple.com>

        Clean up VectorCocoa createNSArray overloads and add documentation for createNSArray taking a map function
        https://bugs.webkit.org/show_bug.cgi?id=210610

        Reviewed by Darin Adler.

        Remove unnecessary local variable. Rename "map" type in createNSArray function for clarity
        and add documentation for createNSArray function that takes a map function.

        I was tempted, but decided not to write the createNSArray function that does not take a
        map function in terms of the one that did. With the "right" optimization settings the
        compiler should emit the same code, but I didn't verify this. So, I didn't do it.

        While I am here, update  makeVector() to call shrinkToFit() to reduce the memory footprint
        of the returned vector should it end of having less entries, due to filtering, than its
        initial capacity.

        * wtf/cocoa/VectorCocoa.h:
        (WTF::createNSArray): See above description.
        (WTF::makeVector): Shrink to fit before returning the vector. See above for more details.

2020-04-16  Daniel Bates  <dabates@apple.com>

        Move -_requestTextInputContextsInRect to WKContentView to simplify implementation
        https://bugs.webkit.org/show_bug.cgi?id=210398
        <rdar://problem/61656931>

        Reviewed by Darin Adler.

        Add a convenience function to create an NSArray from a WTF::Vector with a transform function.
        The tranform function can either return a RetainPtr or an id.

        * wtf/cocoa/VectorCocoa.h:
        (WTF::createNSArray): Added.

2020-04-16  Eric Carlson  <eric.carlson@apple.com>

        [macOS] Update ScreenTime as playback state changes
        https://bugs.webkit.org/show_bug.cgi?id=210518
        <rdar://problem/61181092>

        Reviewed by Jer Noble.
        
        Define HAVE_MEDIA_USAGE_FRAMEWORK and ENABLE_MEDIA_USAGE

        * wtf/PlatformEnableCocoa.h:
        * wtf/PlatformHave.h:

2020-04-16  Alberto Garcia  <berto@igalia.com>

        Unreviewed, set CeilingOnPageSize for MIPS64

        This fixes a build failure ("Must set CeilingOnPageSize in
        PageBlock.h").

        * wtf/PageBlock.h:

2020-04-15  Chris Dumez  <cdumez@apple.com>

        [IPC Hardening] MachMessage::messageSize() should use checked arithmetic
        https://bugs.webkit.org/show_bug.cgi?id=210567
        <rdar://problem/61734355>

        Reviewed by Geoffrey Garen.

        Add operator / to CheckedArithmetic for convenience.

        * wtf/CheckedArithmetic.h:
        (WTF::safeDivide):
        (WTF::Checked::operator/=):
        (WTF::operator/):

2020-04-15  Robin Morisset  <rmorisset@apple.com>

        Flaky Test: fetch/fetch-worker-crash.html
        https://bugs.webkit.org/show_bug.cgi?id=187257
        <rdar://problem/48527526>

        Reviewed by Yusuke Suzuki.

        Make startMachExceptionHandlerThread visible so that we can make sure it is called whenever initializing JSC.

        * wtf/threads/Signals.cpp:
        (WTF::startMachExceptionHandlerThread):
        * wtf/threads/Signals.h:

2020-04-14  Peng Liu  <peng.liu6@apple.com>

        Adopt interface AVAudioRoutingArbiter for Mac
        https://bugs.webkit.org/show_bug.cgi?id=210167

        Reviewed by Eric Carlson.

        Add macro HAVE_AVAUDIO_ROUTING_ARBITER.

        * wtf/PlatformHave.h:

2020-04-13  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r260052.
        https://bugs.webkit.org/show_bug.cgi?id=210479

        Breaks iOS tests, needs more work (Requested by smfr on
        #webkit).

        Reverted changeset:

        "Add ENABLE_CUSTOM_SCROLLBARS and define it for macOS and for
        non-Cocoa platforms"
        https://bugs.webkit.org/show_bug.cgi?id=210460
        https://trac.webkit.org/changeset/260052

2020-04-13  David Kilzer  <ddkilzer@apple.com>

        Replace use of Checked<size_t, RecordOverflow> with CheckedSize
        <https://webkit.org/b/210461>

        Reviewed by Mark Lam.

        * wtf/FastMalloc.cpp:
        (WTF::tryFastCalloc):
        * wtf/Gigacage.cpp:
        (Gigacage::tryMallocArray):
        * wtf/glib/SocketConnection.cpp:
        (WTF::SocketConnection::sendMessage):

2020-04-13  Simon Fraser  <simon.fraser@apple.com>

        Add ENABLE_CUSTOM_SCROLLBARS and define it for macOS and for non-Cocoa platforms
        https://bugs.webkit.org/show_bug.cgi?id=210460

        Reviewed by Tim Horton.

        Define ENABLE_CUSTOM_SCROLLBARS for PLATFORM(MAC) and other non-Cocoa platforms.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:

2020-04-13  David Kilzer  <ddkilzer@apple.com>

        Fix clang static analyzer warnings about unused instance variables in WebIconDatabase, WKView
        <https://webkit.org/b/210427>

        Reviewed by Alex Christensen.

        * wtf/Compiler.h:
        (WK_UNUSED_INSTANCE_VARIABLE): Add.

2020-04-13  Joonghun Park  <jh718.park@samsung.com>

        Unreviewed. Remove redundant move in return statement.

        Return statement already returns rvalue,
        so we don't need move here.

        This patch removes the build warning below since r259922.
        warning: redundant move in return statement [-Wredundant-move]

        * wtf/persistence/PersistentCoders.cpp:
        (WTF::Persistence::Coder<CString>::decode):
        (WTF::Persistence::decodeStringText):
        (WTF::Persistence::Coder<SHA1::Digest>::decode):
        * wtf/persistence/PersistentCoders.h:

2020-04-12  Mark Lam  <mark.lam@apple.com>

        Enable the ability to build the ASM LLInt for ARMv7k.
        https://bugs.webkit.org/show_bug.cgi?id=210412

        Reviewed by Sam Weinig.

        Remove some old code that forces the ENABLE(C_LOOP) to be true if ENABLE(JIT) is
        false.  These 2 options used to be mutually exclusive, but is no more.  Now, we
        allow platforms to choose to build the ASM LLInt instead even if ENABLE(JIT) is
        false.

        * wtf/PlatformEnable.h:

2020-04-12  Darin Adler  <darin@apple.com>

        [Cocoa] Minor tweaks to code to get locale strings to remove one-time-initialization booleans
        https://bugs.webkit.org/show_bug.cgi?id=210410

        Reviewed by Sam Weinig.

        * wtf/text/cocoa/TextBreakIteratorInternalICUCocoa.cpp:
        (WTF::textBreakLocalePreference): Use auto, and no need to explicitly mark this inline.
        (WTF::topLanguagePreference): Use auto.
        (WTF::localeIDInBuffer): Renamed from getLocale. Changed to return a std::array and to
        handle failure cases afterward rather than by initializing beforehand.
        (WTF::getSearchLocale): Deleted.
        (WTF::currentSearchLocaleID): Using "static const auto", wrote this in a straightforward
        and compact way, using localeIDInBuffer and topLanguagePreference.
        (WTF::textBreakLocale): Renamed from getTextBreakLocale and changed to return a
        RetainPtr<CFStringRef>.
        (WTF::currentTextBreakLocaleID): Using "static const auto", wrote this in a straightforward
        and compact way, using localeIDInBuffer and textBreakLocale.

2020-04-12  David Kilzer  <ddkilzer@apple.com>

        Follow-up: WTF::Persistence::Coder and WTF::Persistence::Decoder should use WARN_UNUSED_RETURN
        <https://webkit.org/b/210238>
        <rdar://problem/61491575>

        Changes based on feedback from Alex Christensen and Darin Adler:
        - Remove WARN_UNUSED_RETURN from methods returning Optional<>.
        - Place WARN_UNUSED_RETURN consistently before the return type.

        * wtf/persistence/PersistentDecoder.h:

2020-04-10  Alex Christensen  <achristensen@webkit.org>

        PersistentCoders should use modern decoding syntax
        https://bugs.webkit.org/show_bug.cgi?id=207497

        Reviewed by Darin Adler.

        This paves the way for more serialized types that do not have a default constructor.

        * wtf/persistence/PersistentCoder.h:
        (WTF::Persistence::Coder::encode):
        (WTF::Persistence::Coder::decode):
        * wtf/persistence/PersistentCoders.cpp:
        (WTF::Persistence::Coder<AtomString>::decode):
        (WTF::Persistence::Coder<CString>::decode):
        (WTF::Persistence::decodeStringText):
        (WTF::Persistence::Coder<String>::decode):
        (WTF::Persistence::Coder<SHA1::Digest>::decode):
        * wtf/persistence/PersistentCoders.h:
        (WTF::Persistence::Coder<Optional<T>>::decode):
        (WTF::Persistence::Coder<Seconds>::decode):
        (WTF::Persistence::Coder<WallTime>::decode):
        * wtf/persistence/PersistentDecoder.cpp:
        (WTF::Persistence::Decoder::decodeNumber):
        (WTF::Persistence::Decoder::operator>>):
        (WTF::Persistence::Decoder::decode): Deleted.
        * wtf/persistence/PersistentDecoder.h:
        (WTF::Persistence::Decoder::operator>>):
        (WTF::Persistence::Decoder::decode): Deleted.
        (WTF::Persistence::Decoder::decodeEnum): Deleted.
        * wtf/persistence/PersistentEncoder.h:
        (WTF::Persistence::Encoder::operator<<):
        (WTF::Persistence::Encoder::encode): Deleted.
        (WTF::Persistence::Encoder::encodeEnum): Deleted.

2020-04-10  David Kilzer  <ddkilzer@apple.com>

        Follow-up: Add WARN_UNUSED_RETURN to decode methods in Source/WTF
        <https://webkit.org/b/210323>
        <rdar://problem/61565764>

        Changes based on feedback from Alex Christensen and Darin Adler:
        - Remove WARN_UNUSED_RETURN from methods returning Optional<>.
        - Place WARN_UNUSED_RETURN consistently before the return type.

        * wtf/MediaTime.h:
        * wtf/MonotonicTime.h:
        * wtf/ObjectIdentifier.h:
        (WTF::ObjectIdentifier::decode):
        * wtf/Seconds.h:
        * wtf/URL.h:

2020-04-10  Alicia Boya García  <aboya@igalia.com>

        [WTF] DataMutex: Add runUnlocked()
        https://bugs.webkit.org/show_bug.cgi?id=209811

        Reviewed by Xabier Rodriguez-Calvar.

        This patch introduces a runUnlocked() method in WTF::DataMutex::LockedWrapper
        to run a lambda function without the lock. This is intended to be used for
        small sections of the code that need to be unlocked, in cases where using
        scoping would prove non-ergonomic or where running the unlocked section is only
        necessary or desired when a certain condition is met -- something that cannot
        be done with C++ scoping.

        Safety mechanisms are provided. First, because this is used with a lambda, all
        variables to be used in the unlocked section have to be specified in the
        capture (global capture is possible but not recommended to simplify analysis).
        Second, additional checks have been added to DataMutex to detect unlocked
        accesses among other conditions. This will detect among other things naive
        access to protected members by means of capturing the LockedWrapper by
        reference.

        * wtf/DataMutex.h:
        (WTF::OwnerAwareLockAdapter::lock):
        (WTF::OwnerAwareLockAdapter::unlock):
        (WTF::OwnerAwareLockAdapter::tryLock):
        (WTF::OwnerAwareLockAdapter::isLocked const):
        (WTF::DataMutex::LockedWrapper::operator->):
        (WTF::DataMutex::LockedWrapper::operator*):
        (WTF::DataMutex::LockedWrapper::mutex):
        (WTF::DataMutex::LockedWrapper::lockHolder):
        (WTF::DataMutex::LockedWrapper::runUnlocked):

2020-04-10  David Kilzer  <ddkilzer@apple.com>

        Add WARN_UNUSED_RETURN to decode methods in Source/WTF
        <https://webkit.org/b/210323>
        <rdar://problem/61565764>

        Reviewed by Darin Adler.

        * wtf/MediaTime.h:
        * wtf/MonotonicTime.h:
        * wtf/ObjectIdentifier.h:
        (WTF::ObjectIdentifier::decode):
        * wtf/Seconds.h:
        * wtf/URL.h:
        * wtf/persistence/PersistentCoder.h:
        (WTF::Persistence::Coder::decode):

2020-04-08  Darin Adler  <darin@apple.com>

        [Cocoa] Simplify NSArray, NSDictionary, and NSNumber idioms throughout WebKit
        https://bugs.webkit.org/show_bug.cgi?id=210138

        Reviewed by Alex Christensen.

        * WTF.xcodeproj/project.pbxproj: Added VectorCocoa.h.
        * wtf/PlatformMac.cmake: Ditto.

        * wtf/cocoa/NSURLExtras.mm: Removed unneeded include.
        * wtf/cocoa/URLCocoa.mm: Ditto.

        * wtf/cocoa/VectorCocoa.h: Added. Contains createNSArray and makeVector
        function templates for converting NSArray to and from Vector.

        * wtf/text/WTFString.h: Added makeNSArrayElement and makeVectorElement
        functions, making createNSArray and makeVector compatible with String.
        * wtf/text/cocoa/StringCocoa.mm:
        (WTF::makeNSArrayElement): Added.
        (WTF::makeVectorElement): Added.

2020-04-09  David Kilzer  <ddkilzer@apple.com>

        Add using WTF::isInBounds to CheckedArithmetic.h
        <https://webkit.org/b/210299>

        Reviewed by Darin Adler.

        * wtf/CheckedArithmetic.h:
        - Add `using WTF::isInBounds` statement so this function may be
          used unprefixed outside the WTF project.

2020-04-09  David Kilzer  <ddkilzer@apple.com>

        WTF::Persistence::Coder and WTF::Persistence::Decoder should use WARN_UNUSED_RETURN
        <https://webkit.org/b/210238>
        <rdar://problem/61491575>

        Reviewed by Darin Adler.

        * wtf/persistence/PersistentCoders.cpp:
        (WTF::Persistence::decodeStringText):
        - Add WARN_UNUSED_RETURN.

        * wtf/persistence/PersistentCoders.h:
        (WTF::Persistence::Coder<Optional<T>>::decode):
        (WTF::Persistence::Coder<Seconds>::decode):
        (WTF::Persistence::Coder<WallTime>::decode):
        - Add WARN_UNUSED_RETURN.
        - Add missing return value check for
          decode.decodeFixedLengthData().

        * wtf/persistence/PersistentDecoder.h:
        (WTF::Persistence::Decoder::decode):
        (WTF::Persistence::Decoder::decodeEnum):
        (WTF::Persistence::Decoder::bufferIsLargeEnoughToContain const):
        - Add WARN_UNUSED_RETURN.

2020-04-09  David Kilzer  <ddkilzer@apple.com>

        Follow-up: WTF::Persistence::VectorCoder and IPC::VectorArgumentCoder should do bounds checking without crashing
        <https://webkit.org/b/210227>
        <rdar://problem/60832243>

        Reviewed by Alex Christensen.

        * wtf/persistence/PersistentCoders.h:
        (WTF::Persistence::VectorCoder::decode):
        - Replace safeCast<size_t> with isInBounds<size_t> so that we
          don't crash if `decodedSize` is too big.  Instead we fail
          decoding by returning early.
        - Revert checked arithemtic for multiplication since
          bufferIsLargeEnoughToContain<T(size) already did this check
          for us.

2020-04-09  Mark Lam  <mark.lam@apple.com>

        Implement a more efficient tagCFunction() tool.
        https://bugs.webkit.org/show_bug.cgi?id=210254

        Reviewed by Keith Miller.

        The current tagCFunctionPtr() tool does some extra work that is not needed if
        we are tagging a known function and not a potentially arbitrary pointer.  For
        example,
        1. it doesn't need to do a null check.
        2. it doesn't need to authenticate the function address.  
        3. The RELEASE_ASSERT used to enforce that authentication can also go away.

        We should only use tagCFunction() (instead of tagCFunctionPtr()) if we know for
        certain that we're operating on a C/C++ function, and not some arbitrary pointer.

        * wtf/PtrTag.h:
        (WTF::tagCFunction):

2020-04-08  David Kilzer  <ddkilzer@apple.com>

        WTF::Persistence::VectorCoder and IPC::VectorArgumentCoder should use checked arithmetic
        <https://webkit.org/b/210227>
        <rdar://problem/60832243>

        Reviewed by Alex Christensen.

        * wtf/persistence/PersistentCoders.h:
        (WTF::Persistence::VectorCoder::decode):
        - Use checked arithemtic for multiplication.

2020-04-08  Chris Dumez  <cdumez@apple.com>

        querySelector("#\u0000") should match an element with ID U+FFFD
        https://bugs.webkit.org/show_bug.cgi?id=210119

        Reviewed by Darin Adler.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::replace):
        Slightly optimize the 16-bit code path of StringImpl::replace(). Since we know
        there is no character match from indexes 0 to i, we can simply use memcpy for
        this range.

2020-04-08  Ross Kirsling  <ross.kirsling@sony.com>

        Remove ENABLE_INTL define
        https://bugs.webkit.org/show_bug.cgi?id=210164

        Reviewed by Darin Adler.

        AppleWin (and, following suit, FTW) was the only upstream platform turning ENABLE_INTL off;
        now that their headers have been upgraded to ICU 62, this define can be removed entirely.

        Going forward, we thus assume JSC has an Intl object and can simply runtime-guard any new features added to it.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:

2020-04-08  Adrian Perez de Castro  <aperez@igalia.com>

        [GTK4] Make PAL::systemBeep() work
        https://bugs.webkit.org/show_bug.cgi?id=210158

        Reviewed by Carlos Garcia Campos.

        * wtf/Platform.h: Define a value for GDK_VERSION_MIN_REQUIRED suitable for GTK4.

2020-04-08  Tim Horton  <timothy_horton@apple.com>

        Rearrange and simplify some JSC feature flags
        https://bugs.webkit.org/show_bug.cgi?id=210152

        Reviewed by Saam Barati.

        * wtf/PlatformEnableCocoa.h:
        * wtf/PlatformHave.h:
        * wtf/PlatformUse.h:

2020-04-08  Philippe Normand  <pnormand@igalia.com>

        [GTK][WPE] Release logs are unconditionally filling the journal
        https://bugs.webkit.org/show_bug.cgi?id=209421

        Reviewed by Carlos Alberto Lopez Perez.

        * wtf/Assertions.h: Don't send logs to systemd for disabled log channels.
        * wtf/Logger.h:
        (WTF::Logger::willLog const): Ditto.

2020-04-07  Chris Dumez  <cdumez@apple.com>

        Merge DependencyAssertion into ProcessAssertion
        https://bugs.webkit.org/show_bug.cgi?id=210076

        Reviewed by Alex Christensen.

        * wtf/PlatformHave.h:

2020-04-07  Saam Barati  <sbarati@apple.com>

        RAMification should have a way of gathering vmmaps for each test at the end of each run
        https://bugs.webkit.org/show_bug.cgi?id=210060

        Reviewed by Yusuke Suzuki.

        * wtf/FastMalloc.cpp:
        (WTF::fastDisableScavenger):
        * wtf/FastMalloc.h:

2020-04-06  Ross Kirsling  <ross.kirsling@sony.com>

        Update minimum ICU version to 60.2
        https://bugs.webkit.org/show_bug.cgi?id=209694

        Reviewed by Darin Adler.

        This patch has two immediate motivations:
          1. To properly introduce a minimum ICU version for WebKit as a whole
             (responding to a pain point identified in bug 209579)
          2. To support the development of ECMA-402 Intl API features, which JSC is quite behind on
             (and which often boil down to exposing ICU functionality to JavaScript)

        * icu/LICENSE:
        * icu/README:
        * icu/unicode/:
        Update ICU headers to major version 62, the version included in macOS Mojave.

        * wtf/text/AtomString.h:
        * wtf/text/WTFString.h:
        Remove obsoleted compile-time version checks.

        * wtf/text/cocoa/StringCocoa.mm:
        (WTF::String::String):
        * wtf/text/cocoa/StringViewCocoa.mm:
        (WTF::StringView::createNSString const):
        (WTF::StringView::createNSStringWithoutCopying const):
        Manually convert between UChar and UniChar/unichar where needed.

2020-04-06  Saam Barati  <sbarati@apple.com>

        Implement 1GB of executable memory on arm64
        https://bugs.webkit.org/show_bug.cgi?id=208490
        <rdar://problem/60797127>

        Reviewed by Keith Miller.

        * wtf/MetaAllocator.cpp:
        (WTF::MetaAllocatorTracker::notify):
        (WTF::MetaAllocatorTracker::release):
        (WTF::MetaAllocator::release):
        (WTF::MetaAllocatorHandle::MetaAllocatorHandle):
        (WTF::MetaAllocatorHandle::~MetaAllocatorHandle):
        (WTF::MetaAllocatorHandle::shrink):
        (WTF::MetaAllocator::MetaAllocator):
        (WTF::MetaAllocator::allocate):
        (WTF::MetaAllocator::currentStatistics):
        * wtf/MetaAllocator.h:
        (WTF::MetaAllocatorTracker::find):
        (WTF::MetaAllocator::allocate):
        (WTF::MetaAllocator::currentStatistics):
        (WTF::MetaAllocator::getLock): Deleted.
        * wtf/MetaAllocatorHandle.h:
        (WTF::MetaAllocatorHandle::allocator):
        (WTF::MetaAllocatorHandle::isManaged): Deleted.
        (WTF::MetaAllocatorHandle::ownerUID): Deleted.
        * wtf/PlatformEnable.h:
        * wtf/RedBlackTree.h:
        * wtf/StdLibExtras.h:
        (WTF::constructFixedSizeArrayWithArgumentsImpl):
        (WTF::constructFixedSizeArrayWithArguments):

2020-04-04  Darin Adler  <darin@apple.com>

        Stop using live ranges in DocumentMarkerController
        https://bugs.webkit.org/show_bug.cgi?id=209985

        Reviewed by Antti Koivisto.

        * wtf/RetainPtr.h: Define "id" here when compiling non-ObjC so it's easier to use
        RetainPtr<id> in any header file. Lets us stop doing this many other places.
        Harmless when not needed.

2020-04-04  Fujii Hironori  <Hironori.Fujii@sony.com>

        [Clang 10] Fix -Wimplicit-int-float-conversion compilation warnings in WTF
        https://bugs.webkit.org/show_bug.cgi?id=209955

        Reviewed by Darin Adler.

        Clang 10 reports a compilation warning for int to float
        conversions losing the precision. The warning is often reported
        for code converting a floating point value to an integer value.
        For example:

        > Optional<int> positive_float_to_int(float f) {
        >     if (f > INT_MAX)
        >         return nullopt;
        >     return static_cast<int>(f);
        > }

        INT_MAX is implicitly converted float, but float can't keep the
        precision of such large value. And, C++ spec doesn't specify
        whether it would be rounded up or down. Above code should be
        rewritten to:

        > Optional<int> positive_float_to_int(float f) {
        >     if (f >= pow(2, 31))
        >         return nullopt;
        >     return static_cast<int>(f);
        > }

        Instead of using pow, this change added a template variable
        maxPlusOne<T>.

        * wtf/MathExtras.h:
        (powerOfTwo): Added.
        (doubleToInteger): Added.
        (maxPlusOne): Added.
        * wtf/MediaTime.cpp:
        (WTF::MediaTime::createWithFloat):
        (WTF::MediaTime::createWithDouble):

2020-04-03  David Kilzer  <ddkilzer@apple.com>

        [Xcode] Replace ASAN_OTHER_CFLAGS and ASAN_OTHER_CPLUSPLUSFLAGS with $(inherited)
        <https://webkit.org/b/209963>
        <rdar://problem/61257504>

        Reviewed by Alexey Proskuryakov.

        * Configurations/Base.xcconfig:
        - Remove ASAN_OTHER_CFLAGS, ASAN_OTHER_CPLUSPLUSFLAGS and
          ASAN_OTHER_LDFLAGS.

2020-04-02  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r259390.
        https://bugs.webkit.org/show_bug.cgi?id=209944

        It broke WinCairo builds (Requested by fujihiro on #webkit).

        Reverted changeset:

        "Enable offlineasm debug annotations for GCC"
        https://bugs.webkit.org/show_bug.cgi?id=207119
        https://trac.webkit.org/changeset/259390

2020-04-02  Chris Dumez  <cdumez@apple.com>

        [iOS] Replace UIKit background task with a RunningBoard FinishTaskInterruptable assertion
        https://bugs.webkit.org/show_bug.cgi?id=209825
        <rdar://problem/61118503>

        Reviewed by Geoffrey Garen.

        Add build-time flag for WebKit-specific assertion in RunningBoard.

        * wtf/PlatformHave.h:

2020-04-02  Keith Rollin  <krollin@apple.com>

        Address static analysis warning in DataLog.cpp: Value stored to 'pathCharactersAvailable' is never read
        https://bugs.webkit.org/show_bug.cgi?id=202153
        <rdar://problem/55671845>

        Reviewed by David Kilzer.

        Bug 168914 introduced some code that will initialize a variable to
        zero, but then never use that variable afterwards. Address this by
        removing the assignment.

        * wtf/DataLog.cpp:
        (WTF::setDataFile):

2020-03-31  Michael Catanzaro  <mcatanzaro@gnome.org>

        Update check for aarch64
        https://bugs.webkit.org/show_bug.cgi?id=209322

        Reviewed by Mark Lam.

        CPU(ARM64) is used on Linux, so checking to avoid Apple platforms doesn't make much sense.
        The comment implying that this is an Apple architecture also no longer makes sense.

        * wtf/PlatformCPU.h:

2020-03-31  Sihui Liu  <sihui_liu@apple.com>

        IndexedDB: destroy WebIDBServer when session is removed in network process
        https://bugs.webkit.org/show_bug.cgi?id=209606
        <rdar://problem/59310081>

        Reviewed by Geoffrey Garen.

        Add function to kill CrossThreadTaskHandler and make thread finish. Also add a callback to be called before 
        thread finishes.

        * wtf/CrossThreadTaskHandler.cpp:
        (WTF::CrossThreadTaskHandler::CrossThreadTaskHandler):
        (WTF::CrossThreadTaskHandler::setCompletionCallback):
        (WTF::CrossThreadTaskHandler::kill):
        * wtf/CrossThreadTaskHandler.h:

2020-03-30  David Kilzer  <ddkilzer@apple.com>

        Fix "Dead nested assignment" static analyzer warning in monthFromDayInYear()
        <https://webkit.org/b/209718>

        Reviewed by Alex Christensen.

        * wtf/DateMath.h:
        (WTF::monthFromDayInYear): Change the last check so it doesn't
        assign a value to `step`, thus avoiding the warning.

2020-03-28  Simon Fraser  <simon.fraser@apple.com>

        Add a ScrollLatching log channel and improve some logging functionality
        https://bugs.webkit.org/show_bug.cgi?id=209706

        Reviewed by Darin Adler, David Kilzer.

        * wtf/text/TextStream.h:
        (WTF::ValueOrNull::ValueOrNull):
        (WTF::operator<<):

2020-03-27  Simon Fraser  <simon.fraser@apple.com>

        Define ENABLE_WHEEL_EVENT_LATCHING and use it to wrap wheel event latching code
        https://bugs.webkit.org/show_bug.cgi?id=209693

        Reviewed by Zalan Bujtas.

        Define ENABLE_WHEEL_EVENT_LATCHING for macOS.

        * wtf/PlatformEnable.h:

2020-03-27  Michael Catanzaro  <mcatanzaro@gnome.org>

        REGRESSION(r258857): Broke aarch64 JSCOnly CI
        https://bugs.webkit.org/show_bug.cgi?id=209670

        Reviewed by Carlos Alberto Lopez Perez.

        Change aarch64 to use 4 KB rather than 64 KB as the ceiling on page size.

        This change is definitely incorrect, because it will break our internal aarch64 CI that uses
        64 KB pages. But maybe it will fix the public aarch64 CI bot that is using 4 KB pages?
        Further investigation is required, because 64 KB should have been a safe value for all
        platforms, but first step is to commit this and see what happens.

        * wtf/PageBlock.h:

2020-03-26  Michael Catanzaro  <mcatanzaro@gnome.org>

        Fix various compiler warnings
        https://bugs.webkit.org/show_bug.cgi?id=209438

        Reviewed by Darin Adler.

        Suppress -Wclass-memaccess warning. ConcurrentBuffer is documented to support types that are
        bit-copyable but not copy-constructable. This is strange, but who am I to question it?

        * wtf/ConcurrentBuffer.h:

2020-03-25  Christopher Reid  <chris.reid@sony.com>

        [PlayStation] Specify a 16 KB minimum page size
        https://bugs.webkit.org/show_bug.cgi?id=209566

        Reviewed by Ross Kirsling.

        * wtf/PageBlock.h:

2020-03-25  Sihui Liu  <sihui_liu@apple.com>

        Remove unused suspend functions in CrossThreadTaskHandler
        https://bugs.webkit.org/show_bug.cgi?id=209553

        Reviewed by Geoffrey Garen.

        * wtf/CrossThreadTaskHandler.cpp:
        (WTF::CrossThreadTaskHandler::taskRunLoop):
        (WTF::CrossThreadTaskHandler::suspendAndWait): Deleted.
        (WTF::CrossThreadTaskHandler::resume): Deleted.
        * wtf/CrossThreadTaskHandler.h:

2020-03-24  Per Arne Vollan  <pvollan@apple.com>

        [Cocoa] Fix launch time regression with CF prefs direct mode enabled
        https://bugs.webkit.org/show_bug.cgi?id=209244

        Reviewed by Darin Adler.

        Re-enable CF prefs direct mode.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:

2020-03-24  Per Arne Vollan  <pvollan@apple.com>

        [Cocoa] Deny access to database mapping service
        https://bugs.webkit.org/show_bug.cgi?id=209339
        <rdar://problem/56966010>

        Reviewed by Brent Fulgham.

        Disable the use of UTTypeRecord swizzling, since this is not needed with the new approach
        of denying the database mapping service in this patch.

        * wtf/PlatformUse.h:

2020-03-23  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, reverting r258891.
        https://bugs.webkit.org/show_bug.cgi?id=209459

        Introduced layout test failures (Requested by perarne on
        #webkit).

        Reverted changeset:

        "[Cocoa] Deny access to database mapping service"
        https://bugs.webkit.org/show_bug.cgi?id=209339
        https://trac.webkit.org/changeset/258891

2020-03-23  Per Arne Vollan  <pvollan@apple.com>

        [Cocoa] Deny access to database mapping service
        https://bugs.webkit.org/show_bug.cgi?id=209339
        <rdar://problem/56966010>

        Reviewed by Brent Fulgham.

        Disable the use of UTTypeRecord swizzling, since this is not needed with the new approach
        of denying the database mapping service in this patch.

        * wtf/PlatformUse.h:

2020-03-23  John Wilander  <wilander@apple.com>

        Add the capability to change all of a website's cookies to SameSite=Strict
        https://bugs.webkit.org/show_bug.cgi?id=209369
        <rdar://problem/60710690>

        Reviewed by Alex Christensen and David Kilzer.

        * wtf/PlatformHave.h:
            Adds HAVE_CFNETWORK_SAMESITE_COOKIE_API for macOS Catalina and up,
            iOS 13 and up, Catalyst, watchOS, and Apple TV.

2020-03-23  youenn fablet  <youenn@apple.com>

        Rename blankURL to aboutBlankURL
        https://bugs.webkit.org/show_bug.cgi?id=209344

        Reviewed by Darin Adler.

        Rename blankURL to aboutBlankURL and allow using it without WTF:: prefix.

        * wtf/URL.cpp:
        (WTF::aboutBlankURL):
        (WTF::blankURL): Deleted.
        * wtf/URL.h:

2020-03-23  Rob Buis  <rbuis@igalia.com>

        XMLHttpRequest: getAllResponseHeaders() sorting
        https://bugs.webkit.org/show_bug.cgi?id=200565

        Reviewed by Darin Adler.

        Add a new manipulator that can efficiently convert
        Strings to lower or upper ASCII.

        * wtf/text/StringConcatenate.h:
        (WTF::lowercase):
        (WTF::uppercase):
        * wtf/text/StringView.cpp:
        (WTF::getCharactersWithASCIICaseInternal):
        (WTF::StringView::getCharactersWithASCIICase const):
        * wtf/text/StringView.h:

2020-03-23  Antoine Quint  <graouts@apple.com>

        DocumentTimeline / CSSTransition objects are leaking on CNN.com
        https://bugs.webkit.org/show_bug.cgi?id=208069
        <rdar://problem/59680143>

        Reviewed by Darin Adler.

        Integrating post-commit review feedback from Darin. 

        * wtf/ListHashSet.h:
        (WTF::=):

2020-03-23  Michael Catanzaro  <mcatanzaro@gnome.org>

        REGRESSION(r249808): [GTK] Crash in JSC Config::permanentlyFreeze() on architecture ppc64el
        https://bugs.webkit.org/show_bug.cgi?id=209236

        Reviewed by Mark Lam.

        Add new CeilingOnPageSize constants, for use in JSC, in order to centralize our compile-time
        page size guessing into one place. Improve the implementation of pageSize() to
        RELEASE_ASSERT() when CeilingOnPageSize is wrong, so we can detect and fix it if so. (It
        will be even easier to detect if we change RELEASE_ASSERT_WITH_MESSAGE() to actually print
        its message in release builds.) Change pageSize() to use sysconf(_SC_PAGESIZE), which is
        specified by POSIX, instead of getpagesize(), which is nonstandard.

        * wtf/PageBlock.cpp:
        (WTF::systemPageSize):
        (WTF::pageSize):
        * wtf/PageBlock.h:

2020-03-23  Jacob Uphoff  <jacob_uphoff@apple.com>

        Unreviewed, reverting r258803.

        This revision caused many layout tests and 10 API tests to
        start failing/crashing

        Reverted changeset:

        "[Cocoa] Deny access to database mapping service"
        https://bugs.webkit.org/show_bug.cgi?id=209339
        https://trac.webkit.org/changeset/258803

2020-03-23  youenn fablet  <youenn@apple.com>

        StringView::startsWith and String::startsWith do not treat null strings the same
        https://bugs.webkit.org/show_bug.cgi?id=209273

        Reviewed by Darin Adler.

        Align StringImpl with StringView and make startsWith return true if prefix is null.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::startsWith const):

2020-03-22  Antoine Quint  <graouts@apple.com>

        DocumentTimeline / CSSTransition objects are leaking on CNN.com
        https://bugs.webkit.org/show_bug.cgi?id=208069
        <rdar://problem/59680143>

        Reviewed by Simon Fraser, Geoffrey Garen and Darin Adler.

        If a CSSAnimation is set on an element using the `animation-name` CSS property, and later removed, it will leak due to the ListHashSet<RefPtr<CSSAnimation>>
        (aka CSSAnimationCollection) member on ElementAnimationRareData being replaced to the new list, but the old list not being cleared from its members.

        We fix the ListHashSet assignment operator to use swap ensuring previously held items are cleared.

        * wtf/ListHashSet.h:
        (WTF::=):

2020-03-20  Per Arne Vollan  <pvollan@apple.com>

        [Cocoa] Deny access to database mapping service
        https://bugs.webkit.org/show_bug.cgi?id=209339
        <rdar://problem/56966010>

        Reviewed by Brent Fulgham.

        Disable the use of UTTypeRecord swizzling, since this is not needed with the new approach
        of denying the database mapping service in this patch.

        * wtf/PlatformUse.h:

2020-03-20  Oliver Hunt  <oliver@nerget,com>

        Add correct annotations to block isa pointer
        https://bugs.webkit.org/show_bug.cgi?id=209355
        <rdar://problem/60431606>

        Reviewed by Keith Miller.

        Trivial definition update. 

        * wtf/BlockPtr.h:
        (WTF::BlockPtr<R):

2020-03-20  Tim Horton  <timothy_horton@apple.com>

        Upstream a variety of Cocoa-platform HAVE and ENABLE macros
        https://bugs.webkit.org/show_bug.cgi?id=209307

        Reviewed by Andy Estes.

        * wtf/PlatformEnableCocoa.h:
        * wtf/PlatformHave.h:

2020-03-20  youenn fablet  <youenn@apple.com>

        Add routines to check about:blank and about:srcdoc URLs
        https://bugs.webkit.org/show_bug.cgi?id=209174

        Reviewed by Alex Christensen.

        * wtf/URL.cpp:
        (WTF::aboutSrcDocURL):
        (WTF::URL::isAboutBlank const):
        (WTF::URL::isAboutSrcDoc const):
        * wtf/URL.h:

2020-03-20  Jacob Uphoff  <jacob_uphoff@apple.com>

        Unreviewed, reverting r258748.

        This commit broke the Catalina build

        Reverted changeset:

        "Upstream a variety of Cocoa-platform HAVE and ENABLE macros"
        https://bugs.webkit.org/show_bug.cgi?id=209307
        https://trac.webkit.org/changeset/258748

2020-03-19  Tim Horton  <timothy_horton@apple.com>

        Upstream a variety of Cocoa-platform HAVE and ENABLE macros
        https://bugs.webkit.org/show_bug.cgi?id=209307

        Reviewed by Andy Estes.

        * wtf/PlatformEnableCocoa.h:
        * wtf/PlatformHave.h:

2020-03-19  Tim Horton  <timothy_horton@apple.com>

        Upstream the definition of HAVE_READ_ONLY_SYSTEM_VOLUME
        https://bugs.webkit.org/show_bug.cgi?id=209305

        Reviewed by Andy Estes.

        * wtf/PlatformHave.h:

2020-03-19  Tim Horton  <timothy_horton@apple.com>

        Implement support for cursor interactions on iPad
        https://bugs.webkit.org/show_bug.cgi?id=209268

        Reviewed by Darin Adler.

        * wtf/PlatformEnableCocoa.h:
        Don't disable the contextmenu event on iOS anymore.

        * wtf/PlatformHave.h:
        Rename HAVE_HOVER_GESTURE_RECOGNIZER to HAVE_UIKIT_WITH_MOUSE_SUPPORT.
        Add HAVE_UI_CURSOR_INTERACTION.
        Enable HAVE_UI_PARALLAX_TRANSITION_GESTURE_RECOGNIZER on iOS.

2020-03-19  Charlie Turner  <cturner@igalia.com>

        Fix many warnings with Clang 7.0 on GTK x86-64 in Debug.
        https://bugs.webkit.org/show_bug.cgi?id=209146

        Reviewed by Darin Adler.

        * wtf/LoggerHelper.h: When the RELEASE_LOG is disabled, avoid warning
        spam about unused channel names. Call sites often create locals for
        the channel name outside of RELEASE_LOG ifdef's, which cause many
        unused variable warnings.

2020-03-19  Philippe Normand  <pnormand@igalia.com>

        [GTK][WPE] Unreviewed, build fixes after r258547 when disabling release logging support

        * wtf/Logger.h:
        (WTF::Logger::logAlwaysVerbose const):

2020-03-19  youenn fablet  <youenn@apple.com>

        Make URL::path() return a StringView
        https://bugs.webkit.org/show_bug.cgi?id=209173

        Reviewed by Alex Christensen.

        * wtf/URL.cpp:
        (WTF::URL::path const):
        * wtf/URL.h:
        * wtf/text/StringView.h:
        (WTF::startsWithLettersIgnoringASCIICase):
        Add an overload for StringView.

2020-03-18  Peng Liu  <peng.liu6@apple.com>

        The value of [AVPlayerViewController isPictureInPicturePossible] is NO in the first attempt to enter PiP
        https://bugs.webkit.org/show_bug.cgi?id=204979

        Reviewed by Jer Noble.

        A follow-up patch to fix build failures.

        * wtf/PlatformHave.h:

2020-03-18  Myles C. Maxfield  <mmaxfield@apple.com>

        REGRESSION(r254389): Cordova throws an exception because it expects a hyphen inside navigator.locale
        https://bugs.webkit.org/show_bug.cgi?id=208969
        <rdar://problem/59845517>

        Reviewed by Darin Adler.

        We want to thwart fingerprinting by minimizing the list of locales, but we also don't want to break existing apps.
        We can achieve both by a linked-on-or-after check.

        * wtf/cocoa/LanguageCocoa.mm:
        (WTF::canMinimizeLanguages):

2020-03-17  Alex Christensen  <achristensen@webkit.org>

        REGRESSION(r254856) Add exception for window.openDatabase to not masquerade as undefined in currently shipping Jesus Calling Devotional app
        https://bugs.webkit.org/show_bug.cgi?id=209160
        <rdar://problem/60297073>

        Reviewed by Geoff Garen.

        * wtf/spi/darwin/dyldSPI.h:

2020-03-17  Per Arne Vollan  <pvollan@apple.com>

        [Cocoa] Disable CF prefs direct mode
        https://bugs.webkit.org/show_bug.cgi?id=209166
        <rdar://problem/60517387>

        Reviewed by Brent Fulgham.

        Revert <https://trac.webkit.org/changeset/258064> by disabling the CF prefs direct mode feature,
        since it caused performance regressions.

        * wtf/PlatformEnable.h:

2020-03-17  Philippe Normand  <pnormand@igalia.com>

        RELEASE_LOG should not be Cocoa specific
        https://bugs.webkit.org/show_bug.cgi?id=195182

        Reviewed by Konstantin Tokarev.

        Add sd-journal logging support and wrap the os_log calls with the USE(OS_LOG) guard.

        * wtf/Assertions.cpp:
        * wtf/Assertions.h:
        * wtf/Logger.h:
        (WTF::Logger::log):
        * wtf/MemoryPressureHandler.cpp:
        (WTF::toString):
        * wtf/PlatformGTK.cmake:
        * wtf/PlatformWPE.cmake:
        * wtf/RefCountedLeakCounter.cpp:

2020-03-16  Keith Miller  <keith_miller@apple.com>

        JavaScript identifier grammar supports unescaped astral symbols, but JSC doesn’t
        https://bugs.webkit.org/show_bug.cgi?id=208998

        Reviewed by Michael Saboff.

        * wtf/text/WTFString.cpp:
        (WTF::String::fromCodePoint):
        * wtf/text/WTFString.h:

2020-03-15  Yusuke Suzuki  <ysuzuki@apple.com>

        Should not use variable-length-array (VLA)
        https://bugs.webkit.org/show_bug.cgi?id=209043

        Reviewed by Mark Lam.

        * Configurations/Base.xcconfig:
        * wtf/UUID.cpp:
        (WTF::bootSessionUUIDString):

2020-03-13  Myles C. Maxfield  <mmaxfield@apple.com>

        [Cocoa] Push applicationSDKVersion() down from WebCore into WTF
        https://bugs.webkit.org/show_bug.cgi?id=209030

        Reviewed by Simon Fraser.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/PlatformMac.cmake:
        * wtf/cocoa/RuntimeApplicationChecksCocoa.cpp: Added.
        * wtf/cocoa/RuntimeApplicationChecksCocoa.h: Added.
        (WTF::applicationSDKVersionOverride):
        (WTF::setApplicationSDKVersion):
        (WTF::applicationSDKVersion):

2020-03-11  Jer Noble  <jer.noble@apple.com>

        Adopt AVSampleBufferVideoOutput
        https://bugs.webkit.org/show_bug.cgi?id=208951

        Reviewed by Eric Carlson.

        * wtf/PlatformHave.h:

2020-03-11  Jer Noble  <jer.noble@apple.com>

        [EME] Issue an "encrypted" event when a new encrypted initialization segment is encountered
        https://bugs.webkit.org/show_bug.cgi?id=208923

        Reviewed by Eric Carlson.

        * wtf/LoggerHelper.h:
        (WTF::LoggerHelper::childLogIdentifier): Made static.

2020-03-11  Per Arne Vollan  <pvollan@apple.com>

        [macOS] Crash under WebKit::WebProcessPool::platformInitialize()
        https://bugs.webkit.org/show_bug.cgi?id=208945

        Reviewed by Brent Fulgham.

        Add macro to optionally soft link library.

        * wtf/cocoa/SoftLinking.h:

2020-03-11  Alex Christensen  <achristensen@webkit.org>

        Enable safe browsing warnings in Mac Catalyst WebKit
        https://bugs.webkit.org/show_bug.cgi?id=208944
        <rdar://problem/58854302>

        Reviewed by Tim Horton.

        * wtf/PlatformHave.h:

2020-03-09  Megan Gardner  <megan_gardner@apple.com>

        Build Fix
        https://bugs.webkit.org/show_bug.cgi?id=208838

        Reviewed by Tim Horton.

        * wtf/PlatformHave.h:

2020-03-09  Don Olmstead  <don.olmstead@sony.com>

        Remove obsolete feature flags
        https://bugs.webkit.org/show_bug.cgi?id=208830

        Reviewed by Alex Christensen.

        Remove ENABLE_CUSTOM_SCHEME_HANDLER as it is unused in source.

        * wtf/PlatformEnable.h:

2020-03-08  Brady Eidson  <beidson@apple.com>

        Remember completed subranges during incremental PDF loading.
        https://bugs.webkit.org/show_bug.cgi?id=208785

        Reviewed by Tim Horton.

        * wtf/Range.h: Don't include the typical 'using WTF::Range' as that makes it almost impossible
          to use in the stack at WebCore or higher (Because of WebCore::Range)

2020-03-08  Per Arne Vollan  <pvollan@apple.com>

        Unreviewed build fix.

        * wtf/PlatformUse.h:

2020-03-08  Per Arne Vollan  <pvollan@apple.com>

        [iOS] Mapping to UTI from tag and tag class should be performed in the UI process
        https://bugs.webkit.org/show_bug.cgi?id=208783

        Reviewed by Brent Fulgham.

        * wtf/PlatformUse.h:

2020-03-08  Wenson Hsieh  <wenson_hsieh@apple.com>

        Lazily generate CGPaths for some simple types of paths, such as arcs and lines
        https://bugs.webkit.org/show_bug.cgi?id=208464
        <rdar://problem/59963226>

        Reviewed by Daniel Bates, Darin Adler and Tim Horton.

        Add a feature flag for INLINE_PATH_DATA. This feature flag exists to ensure that we can avoid having
        m_inlineData on Path in ports that don't implement the necessary facilities for inline path data yet, since it
        would just end up being wasted memory.

        * wtf/PlatformEnable.h:

2020-03-07  Daniel Bates  <dabates@apple.com>

        [iOS] Implement support for dictation alternatives
        https://bugs.webkit.org/show_bug.cgi?id=208720
        <rdar://problem/58540114>

        Reviewed by Wenson Hsieh.

        Part 5

        Enable USE_DICTATION_ALTERNATIVES on iOS.

        * wtf/PlatformUse.h:

2020-03-05  Sam Weinig  <weinig@apple.com>

        Move JavaScriptCore related feature defines from FeatureDefines.xcconfig to PlatformEnableCocoa.h
        https://bugs.webkit.org/show_bug.cgi?id=207436
        <rdar://problem/59296762>

        Reviewed by Darin Adler.

        * wtf/PlatformEnable.h:
        Add default values for ENABLE_FAST_JIT_PERMISSIONS and ENABLE_SEPARATED_WX_HEAP.

        * wtf/PlatformEnableCocoa.h:
        Added ENABLE_FAST_JIT_PERMISSIONS and ENABLE_INTL (from FeatureDefines.xcconfig), ENABLE_SEPARATED_WX_HEAP
        (from PlatformEnable.h) and ENABLE_FTL_JIT (from both FeatureDefines.xcconfig and PlatformEnable.h).

2020-03-06  Per Arne Vollan  <pvollan@apple.com>

        [Cocoa] Re-enable CFPrefs direct mode
        https://bugs.webkit.org/show_bug.cgi?id=208690

        Reviewed by Brent Fulgham.

        * wtf/PlatformEnable.h:

2020-03-06  Peng Liu  <peng.liu6@apple.com>

        Use the feature flags mechanism to give default feature preference values
        https://bugs.webkit.org/show_bug.cgi?id=208607

        Reviewed by Youenn Fablet.

        ENABLE_GPU_PROCESS_FOR_WEBRTC is removed because we will use the feature flags
        mechanism to give the default preference regarding the WebRTC in GPU process feature.
        This patch also adds macro HAVE_SYSTEM_FEATURE_FLAGS.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:
        * wtf/PlatformHave.h:

2020-03-05  Darin Adler  <darin@apple.com>

        Improve some media code
        https://bugs.webkit.org/show_bug.cgi?id=208322

        Reviewed by Anders Carlsson.

        * wtf/WeakPtr.h:
        (WTF::WeakPtr::operator! const): Added.

2020-03-05  Jer Noble  <jer.noble@apple.com>

        [GPUP] Implement RemoteAudioSession
        https://bugs.webkit.org/show_bug.cgi?id=208583

        Reviewed by Alex Christensen.

        Add UniqueRef to the list of forward-declared template types.

        * wtf/Forward.h:

2020-03-04  Mark Lam  <mark.lam@apple.com>

        Handle an out of memory error while constructing the BytecodeGenerator.
        https://bugs.webkit.org/show_bug.cgi?id=208622
        <rdar://problem/59341136>

        Reviewed by Saam Barati.

        * wtf/CagedUniquePtr.h:
        (WTF::CagedUniquePtr::tryCreate):

2020-03-04  Brady Eidson  <beidson@apple.com>

        Lay initial groundwork for new PDF loading model
        https://bugs.webkit.org/show_bug.cgi?id=208599

        Reviewed by Alex Christensen.

        * wtf/PlatformHave.h:

2020-03-04  Wenson Hsieh  <wenson_hsieh@apple.com>

        Add system trace points around display list replay
        https://bugs.webkit.org/show_bug.cgi?id=208616

        Reviewed by Simon Fraser.

        Add DisplayListReplayStart and DisplayListReplayEnd.

        * wtf/SystemTracing.h:

2020-03-04  Per Arne Vollan  <pvollan@apple.com>

        [Cocoa] Add enable flag to disable direct mode for preferences
        https://bugs.webkit.org/show_bug.cgi?id=208588

        Reviewed by Brent Fulgham.

        * wtf/PlatformEnable.h:

2020-03-03  Megan Gardner  <megan_gardner@apple.com>

        Build Fix
        https://bugs.webkit.org/show_bug.cgi?id=208530

        Reviewed by Wenson Hsieh.

        * wtf/PlatformHave.h:

2020-03-03  Jiten Mehta  <jmehta@apple.com>

        Adopt HTTP Alternative Services Storage
        https://bugs.webkit.org/show_bug.cgi?id=208387

        Reviewed by Alex Christensen.

        * wtf/PlatformHave.h:

2020-03-03  youenn fablet  <youenn@apple.com>

        Rename USE(GPU_PROCESS) to ENABLE(GPU_PROCESS_FOR_WEBRTC)
        https://bugs.webkit.org/show_bug.cgi?id=208505

        Reviewed by Eric Carlson.

        Rename macro since the name is misleading.
        Disable GPU_PROCESS_FOR_WEBRTC for iOS except simulator for now.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:
        * wtf/PlatformUse.h:

2020-03-02  Ben Nham  <nham@apple.com>

        Add performance probes for HTML parsing
        https://bugs.webkit.org/show_bug.cgi?id=208271

        Reviewed by Daniel Bates.

        This adds probes that show which lines of HTML are have been parsed.

        * wtf/SystemTracing.h:

2020-03-02  Ben Nham  <nham@apple.com>

        [WTF] Add signpost API
        https://bugs.webkit.org/show_bug.cgi?id=208395

        Reviewed by Alex Christensen.

        We want to start using os_signpost instead of kdebug_trace when emitting performance events,
        because it is usually cheaper (doesn't require a system call unless the log buffer is full)
        and allows for richer tracepoints (allows for logging strings as well as integers).

        To facilitate this, this moves the os_signpost wrappers in NetworkDataTaskCocoa to
        WTF. Since signposts can contain sensitive strings (like URLs), currently we only enable
        them on Apple-internal devices when an environment variable is set.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/PlatformMac.cmake:
        * wtf/SystemTracing.h:
        * wtf/cocoa/SystemTracingCocoa.cpp: Added.
        (WTFSignpostsEnabled):
        (WTFSignpostLogHandle):
        * wtf/spi/darwin/OSVariantSPI.h: Renamed from Source/WebCore/PAL/pal/spi/cocoa/OSVariantSPI.h.

2020-03-02  Alan Coon  <alancoon@apple.com>

        Add new Mac target numbers
        https://bugs.webkit.org/show_bug.cgi?id=208398

        Reviewed by Alexey Proskuryakov.

        * Configurations/Base.xcconfig:
        * Configurations/DebugRelease.xcconfig:

2020-03-02  Megan Gardner  <megan_gardner@apple.com>

        Add date/time style to macCatalyst
        https://bugs.webkit.org/show_bug.cgi?id=208456

        Reviewed by Wenson Hsieh.

        * wtf/PlatformHave.h:

2020-03-02  Paulo Matos  <pmatos@igalia.com>

        Fix JSC 32bit alignment increase gcc warning
        https://bugs.webkit.org/show_bug.cgi?id=208445

        Reviewed by Yusuke Suzuki.

        Use reinterpret_cast_ptr<>() instead of reinterpret_cast<>() to
        avoid GCC warning about increase in alignment requirement for cast
        target type.

        * wtf/HashTable.h:
        (WTF::HashTable::tableSize const):
        (WTF::HashTable::setTableSize const):
        (WTF::HashTable::tableSizeMask const):
        (WTF::HashTable::setTableSizeMask):
        (WTF::HashTable::keyCount const):
        (WTF::HashTable::setKeyCount const):
        (WTF::HashTable::deletedCount const):
        (WTF::HashTable::setDeletedCount const):
        (WTF::KeyTraits>::allocateTable):
        (WTF::KeyTraits>::deallocateTable):

2020-03-02  youenn fablet  <youenn@apple.com>

        Enable capture in GPUProcess by default for recent platforms only
        https://bugs.webkit.org/show_bug.cgi?id=208437

        Reviewed by Eric Carlson.

        * wtf/PlatformUse.h:
        Introduce USE(GPU_PROCESS)

2020-02-29  Yusuke Suzuki  <ysuzuki@apple.com>

        Remove std::lock_guard
        https://bugs.webkit.org/show_bug.cgi?id=206451

        Reviewed by Anders Carlsson.

        Remove use of std::lock_guard. This is deprecated in C++17.

        1. For particularly low-level usage (like, bmalloc, std::mutex), use std::scoped_lock.
        2. For the other purpose, use holdLock.

        * benchmarks/ConditionSpeedTest.cpp:
        * wtf/CryptographicallyRandomNumber.cpp:
        * wtf/HashTable.cpp:
        (WTF::HashTableStats::recordCollisionAtCount):
        (WTF::HashTableStats::dumpStats):
        * wtf/HashTable.h:
        (WTF::KeyTraits>::invalidateIterators):
        (WTF::addIterator):
        (WTF::removeIterator):
        * wtf/Language.cpp:
        (WTF::userPreferredLanguages):
        * wtf/MainThread.cpp:
        (WTF::dispatchFunctionsFromMainThread):
        (WTF::callOnMainThread):
        (WTF::callOnMainAndWait):
        * wtf/StackStats.cpp:
        (WTF::StackStats::CheckPoint::CheckPoint):
        (WTF::StackStats::CheckPoint::~CheckPoint):
        (WTF::StackStats::probe):
        (WTF::StackStats::LayoutCheckPoint::LayoutCheckPoint):
        (WTF::StackStats::LayoutCheckPoint::~LayoutCheckPoint):
        * wtf/WordLock.cpp:
        (WTF::WordLock::unlockSlow):
        * wtf/cf/LanguageCF.cpp:
        (WTF::languagePreferencesDidChange):
        (WTF::platformUserPreferredLanguages):
        * wtf/text/StringView.cpp:
        (WTF::StringView::invalidate):
        (WTF::StringView::adoptUnderlyingString):
        (WTF::StringView::setUnderlyingString):
        * wtf/unicode/icu/CollatorICU.cpp:
        (WTF::Collator::Collator):
        (WTF::Collator::~Collator):
        * wtf/win/LanguageWin.cpp:
        (WTF::platformLanguage):

2020-02-28  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] BuiltinNames' HashMap should be small
        https://bugs.webkit.org/show_bug.cgi?id=208404

        Reviewed by Mark Lam.

        * wtf/text/AtomStringImpl.cpp:
        (WTF::HashTranslatorCharBuffer::HashTranslatorCharBuffer): Deleted.
        * wtf/text/StringImpl.h:
        (WTF::HashTranslatorCharBuffer::HashTranslatorCharBuffer):

2020-02-27  Basuke Suzuki  <basuke.suzuki@sony.com>

        [WinCairo] Fix RemoteInspector reconnect issue
        https://bugs.webkit.org/show_bug.cgi?id=208256

        Reviewed by Devin Rousso.

        Added wakeupCallback to RunLoop. In case of RunLook::iterate, we need to wake up worker thread
        when RunLoop is waking up.

        * wtf/RunLoop.h:
        * wtf/generic/RunLoopGeneric.cpp:
        (WTF::RunLoop::setWakeUpCallback):
        (WTF::RunLoop::wakeUp):
        * wtf/win/RunLoopWin.cpp:
        (WTF::RunLoop::setWakeUpCallback):
        (WTF::RunLoop::wakeUp):

2020-02-27  Simon Fraser  <simon.fraser@apple.com>

        Add ENABLE(SCROLLING_THREAD) and use it to turn off some code we don't need for iOS
        https://bugs.webkit.org/show_bug.cgi?id=208282

        Reviewed by Tim Horton.
        
        Define ENABLE_SCROLLING_THREAD PLATFORM(MAC) and USE(NICOSIA).

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:

2020-02-26  Don Olmstead  <don.olmstead@sony.com>

        Allow setting of stack sizes for threads
        https://bugs.webkit.org/show_bug.cgi?id=208223

        Reviewed by Yusuke Suzuki.

        Introduce ThreadType which is used internally to specify a stack size for a particular
        type of thread. Platforms can make their own decisions on what the stack size should be
        based on their own observations. Additionally a default stack size can be specified
        by defining DEFAULT_THREAD_STACK_SIZE_IN_KB if the default stack for a platform is
        insufficient in all cases, or when investigating the stack size for tuning.

        Both the pthread and Windows thread implementations are modified to set the stack size
        if provided.

        * wtf/Threading.cpp:
        (WTF::stackSize):
        (WTF::Thread::create):
        * wtf/Threading.h:
        * wtf/posix/ThreadingPOSIX.cpp:
        (WTF::Thread::establishHandle):
        * wtf/win/ThreadingWin.cpp:
        (WTF::Thread::establishHandle):

2020-02-26  Christopher Reid  <chris.reid@sony.com>

        [Win] Implement NetworkCache::Data by using FileSystem::MappedFileData
        https://bugs.webkit.org/show_bug.cgi?id=197684
        <rdar://problem/59467397>

        Reviewed by Yusuke Suzuki.

        * wtf/FileSystem.cpp:
        * wtf/FileSystem.h:
        Added FileAccessPermission flag when opening files.
        Remove default argument for the listDirectory filter since the defaut
        String() filter doesn't match all files on Mac and Windows.

        Added FileOpenMode::ReadWrite to be used with ReadWrite MappedFileData.
        Added failIfFileExists flag to openFile.

        * wtf/glib/FileSystemGlib.cpp:
        * wtf/posix/FileSystemPOSIX.cpp:
        Added (S_IRUSR | S_IWUSR) file open modes.

        * wtf/win/FileSystemWin.cpp:
        Implement getVolumeFreeSpace since some of the tests use it when toggling cache.
        
        * wtf/win/PathWalker.cpp:

2020-02-25  Devin Rousso  <drousso@apple.com>

        Web Inspector: safari app extension isolated worlds and injected files use the extension's identifier instead of its name
        https://bugs.webkit.org/show_bug.cgi?id=206911
        <rdar://problem/58026635>

        Reviewed by Brian Burg.

        * wtf/HashSet.h:
        (WTF::HashSet::reserveInitialCapacity): Added.

2020-02-25  Justin Michaud  <justin_michaud@apple.com>

        Inline Cache delete by id/val
        https://bugs.webkit.org/show_bug.cgi?id=207522

        Reviewed by Keith Miller and Filip Pizlo.

        * wtf/Spectrum.h:
        (WTF::Spectrum::add):
        (WTF::Spectrum::get const):
        (WTF::Spectrum::buildList const):
        (WTF::Spectrum::clear):
        (WTF::Spectrum::removeIf):
        (WTF::Spectrum::begin): Deleted.
        (WTF::Spectrum::end): Deleted.

2020-02-25  Philippe Normand  <pnormand@igalia.com>

        [WPE] Enable BACKTRACE_SYMBOLS
        https://bugs.webkit.org/show_bug.cgi?id=208187

        Reviewed by Žan Doberšek.

        * wtf/PlatformHave.h: Enable backtrace_symbols, to be combined
        with dladdr() the stacktrace dumps will be improved.

2020-02-25  Saam Barati  <sbarati@apple.com>

        Update stale comment about PackedAlignedPtr
        https://bugs.webkit.org/show_bug.cgi?id=208176

        Reviewed by Yusuke Suzuki.

        The comment was stale since cells aren't guaranteed anymore to be
        aligned on 16 byte boundaries because of the GCs precise allocations.

        * wtf/Packed.h:

2020-02-25  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Stop using gtk foreign drawing API to style form controls
        https://bugs.webkit.org/show_bug.cgi?id=208129

        Reviewed by Adrian Perez de Castro.

        Enable USE_NEW_THEME for the GTK port.

        * wtf/PlatformUse.h:

2020-02-25  Philippe Normand  <pnormand@igalia.com>

        [Linux] StackTrace symbols are not demangled
        https://bugs.webkit.org/show_bug.cgi?id=207933

        Reviewed by Yusuke Suzuki.

        Demangle symbols provided by backtrace_symbols.

        * wtf/StackTrace.cpp:
        (WTF::StackTrace::dump const):

2020-02-24  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] Add tests for CompactRefPtrTuple
        https://bugs.webkit.org/show_bug.cgi?id=208172

        Reviewed by Darin Adler.

        Include Noncopyable.h.

        * wtf/CompactRefPtrTuple.h:

2020-02-24  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] Attach WARN_UNUSED_RETURN to makeScopeExit and fix existing wrong usage
        https://bugs.webkit.org/show_bug.cgi?id=208162

        Reviewed by Robin Morisset.

        We should hold ScopeExit to call destructor when we exit from the scope actually.
        Putting WARN_UNUSED_RETURN to fix existing misuse.

        * wtf/Scope.h:

2020-02-23  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Shrink Structure
        https://bugs.webkit.org/show_bug.cgi?id=207827

        Reviewed by Saam Barati.

        Make CompactPointerTuple usable for storing 16 bits data.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/CompactPointerTuple.h:
        * wtf/CompactRefPtrTuple.h: Added.
        * wtf/text/StringImpl.h:
        * wtf/text/SymbolImpl.h:
        (WTF::SymbolImpl::hashForSymbol const):
        (WTF::SymbolImpl::SymbolImpl):

2020-02-21  Antti Koivisto  <antti@apple.com>

        REGRESSION(r257072): MotionMark | Mac | -10%
        https://bugs.webkit.org/show_bug.cgi?id=208054
        <rdar://problem/59664582>

        Reviewed by Geoffrey Garen.

        With rAF and slow scripts, suspended functions may pile up in RunLoop because every cycle does a rendering update.

        * wtf/RunLoop.cpp:
        (WTF::RunLoop::performWork):
        (WTF::RunLoop::suspendFunctionDispatchForCurrentCycle):

        Don't suspend if there are already pending suspended functions.

        * wtf/RunLoop.h:

2020-02-20  Jiewen Tan  <jiewen_tan@apple.com>

        [WebAuthn] Replace DeviceIdentity.framework
        https://bugs.webkit.org/show_bug.cgi?id=207985
        <rdar://problem/59369223>

        Reviewed by Brent Fulgham.

        * wtf/PlatformHave.h:

2020-02-20  Eric Liang  <ericliang@apple.com>

        AX: Adopt _AXSCopyPathForAccessibilityBundle for WebKit
        https://bugs.webkit.org/show_bug.cgi?id=207828

        Use the _AXSCopyPathForAccessibilityBundle new API. Updated the required SDK version.

        Reviewed by Darin Adler.

        * wtf/PlatformHave.h:

2020-02-20  Antti Koivisto  <antti@apple.com>

        Unreviewed comment fix.

        * wtf/RunLoop.cpp:
        (WTF::RunLoop::suspendFunctionDispatchForCurrentCycle):

        Words by Simon.

2020-02-20  Antti Koivisto  <antti@apple.com>

        [macOS] Disable RunLoop function dispatch when there is a pending rendering update
        https://bugs.webkit.org/show_bug.cgi?id=207931

        Reviewed by Geoffrey Garen.

        * wtf/RunLoop.cpp:
        (WTF::RunLoop::performWork):

        Simplify the code by factoring it into a single loop.
        Bail out if the runloop is initially suspended or if it becomes suspended by function execution.
        Clear the suspended state so it last a single cycle only.

        (WTF::RunLoop::suspendFunctionDispatchForCurrentCycle):

        Set the suspended state and wake up the runloop to guarantee the state is cleared.

        * wtf/RunLoop.h:

2020-02-18  Keith Miller  <keith_miller@apple.com>

        Add an os_log PrintStream
        https://bugs.webkit.org/show_bug.cgi?id=207898

        Reviewed by Mark Lam.

        When debugging on iOS writing to a file can be hard (thanks
        Sandboxing!)  so logging our dataLogs to os_log would make things
        easier. This patch adds a new subclass of PrintStream,
        OSLogPrintStream, that converts our file writes to
        os_log. Unfortunately, os_log doesn't buffer writes so
        OSLogPrintStream needs to do its own buffering. e.g. if you call
        `dataLogLn("some text with a ", number, " and a ", string);`
        os_log will log that as 5 separate logs.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/DataLog.cpp:
        (WTF::setDataFile):
        * wtf/DataLog.h:
        * wtf/OSLogPrintStream.cpp: Added.
        (WTF::OSLogPrintStream::OSLogPrintStream):
        (WTF::OSLogPrintStream::~OSLogPrintStream):
        (WTF::OSLogPrintStream::open):
        (WTF::OSLogPrintStream::vprintf):
        * wtf/OSLogPrintStream.h: Copied from Source/WTF/wtf/DataLog.h.
        * wtf/PrintStream.cpp:
        (WTF::printExpectedCStringHelper):
        (WTF::printInternal):
        * wtf/text/CString.cpp:
        (WTF::CString::grow):
        * wtf/text/CString.h:

2020-02-18  Simon Fraser  <simon.fraser@apple.com>

        Move from "layer flush" terminology to "rendering update"
        https://bugs.webkit.org/show_bug.cgi?id=207870

        Reviewed by Tim Horton.

        * wtf/SystemTracing.h:

2020-02-17  Chris Dumez  <cdumez@apple.com>

        [WK2][Cocoa] Implement in-WebProcess cookie cache to avoid sync IPC for document.cookie in most cases
        https://bugs.webkit.org/show_bug.cgi?id=207593
        <rdar://problem/56027027>

        Reviewed by Antti Koivisto.

        Add build time flags for new feature.

        * wtf/PlatformEnable.h:
        * wtf/PlatformHave.h:

2020-02-17  Tim Horton  <timothy_horton@apple.com>

        Add and adopt HAVE(LOOKUP_GESTURE_RECOGNIZER)
        https://bugs.webkit.org/show_bug.cgi?id=207876

        Reviewed by Wenson Hsieh.

        * wtf/PlatformHave.h:
        For symmetry's sake, introduce a HAVE for this gesture.

2020-02-17  Mark Lam  <mark.lam@apple.com>

        getVTablePointer() should return a const void*.
        https://bugs.webkit.org/show_bug.cgi?id=207871
        <rdar://problem/59525721>

        Reviewed by Yusuke Suzuki.

        * wtf/PointerPreparations.h:
        (WTF::getVTablePointer):

2020-02-17  Dean Jackson  <dino@apple.com>

        [WebGL] Enable ANGLE by default for Cocoa platforms
        https://bugs.webkit.org/show_bug.cgi?id=205483
        rdar://56925821

        Reviewed by Simon Fraser.

        * wtf/Platform.h:

2020-02-17  Peng Liu  <peng.liu6@apple.com>

        Fix check-webkit-style errors related to AVFoundationSPI.h
        https://bugs.webkit.org/show_bug.cgi?id=207834

        Reviewed by Eric Carlson.

        Add HAVE_VIDEO_PERFORMANCE_METRICS and USE_AV_SAMPLE_BUFFER_DISPLAY_LAYER to fix check-webkit-style errors.

        * wtf/PlatformHave.h:
        * wtf/PlatformUse.h:

2020-02-17  Víctor Manuel Jáquez Leal  <vjaquez@igalia.com>

        a lot gcc warnings because of %{public}s format specifier
        https://bugs.webkit.org/show_bug.cgi?id=207478

        Reviewed by Darin Adler.

        Add PUBLIC_LOG_STRING macro which is defined depending on if
        os_log()[1] is used or rather old printf().

        OS Logging processes format specifiers for privacy matters, for
        example dynamic strings, which demands %{public}s. But these
        specifiers are not valid for printf().

        Calls to logging with this specifier, if they are not Mac/Darwing
        exclusive, use this new macro to avoid gcc warnings.

        1. https://developer.apple.com/documentation/os/logging?language=objc

        * wtf/Assertions.h:
        * wtf/MemoryPressureHandler.cpp:
        (WTF::MemoryPressureHandler::ReliefLogger::logMemoryUsageChange):

2020-02-17  Antti Koivisto  <antti@apple.com>

        [macOS] Add trace points for layer flush runloop observer
        https://bugs.webkit.org/show_bug.cgi?id=207837

        Reviewed by Sam Weinig.

        * wtf/SystemTracing.h:

2020-02-17  Don Olmstead  <don.olmstead@sony.com>

        [CMake] Use builtin targets
        https://bugs.webkit.org/show_bug.cgi?id=205166

        Reviewed by Darin Adler.

        * wtf/PlatformGTK.cmake:
        * wtf/PlatformJSCOnly.cmake:
        * wtf/PlatformPlayStation.cmake:
        * wtf/PlatformWPE.cmake:

2020-02-16  Fujii Hironori  <Hironori.Fujii@sony.com>

        Remove remaining WTF_EXPORT and WTF_IMPORT by replacing them with WTF_EXPORT_DECLARATION and WTF_IMPORT_DECLARATION
        https://bugs.webkit.org/show_bug.cgi?id=207746

        Reviewed by Don Olmstead.

        I removed WTF_EXPORT from function declarations in r256420 (Bug 207453).
        WTF_EXPORT is still used mostly in *ExportMacros.h. However, there is no
        difference between WTF_EXPORT and WTF_EXPORT_DECLARATION.

        Removed WTF_EXPORT and WTF_IMPORT by replacing them with
        WTF_EXPORT_DECLARATION and WTF_IMPORT_DECLARATION

        Removed unused WTF_HIDDEN.

        Defined WTF_EXPORT_DECLARATION, WTF_IMPORT_DECLARATION and WTF_HIDDEN_DECLARATION empty
        in case of !USE(EXPORT_MACROS) to simplify *ExportMacros.h.

        * wtf/ExportMacros.h:

2020-02-14  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r256633.
        https://bugs.webkit.org/show_bug.cgi?id=207807

        4% memory regression in new Membuster, possibly some leaking
        in WebKit Malloc? (Requested by yusukesuzuki on #webkit).

        Reverted changeset:

        "[Win] Implement NetworkCache::Data by using
        FileSystem::MappedFileData"
        https://bugs.webkit.org/show_bug.cgi?id=197684
        https://trac.webkit.org/changeset/256633

2020-02-14  Christopher Reid  <chris.reid@sony.com>

        [Win] Implement NetworkCache::Data by using FileSystem::MappedFileData
        https://bugs.webkit.org/show_bug.cgi?id=197684

        Reviewed by Fujii Hironori.

        * wtf/FileSystem.cpp:
        * wtf/FileSystem.h:
        Added FileAccessPermission flag when opening files.
        Remove default argument for the listDirectory filter since the defaut
        String() filter doesn't match all files on Mac and Windows.

        * wtf/glib/FileSystemGlib.cpp:
        * wtf/posix/FileSystemPOSIX.cpp:
        Added (S_IRUSR | S_IWUSR) file open modes.

        * wtf/win/FileSystemWin.cpp:
        Implement getVolumeFreeSpace since some of the tests use it when toggling cache.
        
        * wtf/win/PathWalker.cpp:

2020-02-14  Alex Christensen  <achristensen@webkit.org>

        Allow UIDNAInfo.errors from uidna_nameToUnicode that would not cause URL parsing failures
        https://bugs.webkit.org/show_bug.cgi?id=207360
        <rdar://problem/57825317>

        Reviewed by Ryosuke Niwa.

        * wtf/URLHelpers.cpp:
        (WTF::URLHelpers::mapHostName):

2020-02-12  Said Abou-Hallawa  <sabouhallawa@apple.com>

        WebP image format is not supported
        https://bugs.webkit.org/show_bug.cgi?id=192672

        Reviewed by Youenn Fablet.

        Introduce HAVE(WEBP) for macOS and iOS.

        * wtf/PlatformHave.h:

2020-02-12  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Compact JITCodeMap by storing BytecodeIndex and CodeLocation separately
        https://bugs.webkit.org/show_bug.cgi?id=207673

        Reviewed by Mark Lam.

        * wtf/MallocPtr.h:

2020-02-12  Ryan Haddad  <ryanhaddad@apple.com>

        Unreviewed, rolling out r256010.

        Introduced ASan crashes

        Reverted changeset:

        "[Cocoa] Use AVAssetWriterDelegate to implement MediaRecorder"
        https://bugs.webkit.org/show_bug.cgi?id=206582
        https://trac.webkit.org/changeset/r256010

2020-02-12  Yusuke Suzuki  <ysuzuki@apple.com>

        Shrink CachedResource
        https://bugs.webkit.org/show_bug.cgi?id=207618

        Reviewed by Mark Lam.

        * wtf/Markable.h:
        (WTF::Markable::asOptional const): Add helper method to get Optional easily from Markable.
        * wtf/ObjectIdentifier.h:
        (WTF::ObjectIdentifier::MarkableTraits::isEmptyValue):
        (WTF::ObjectIdentifier::MarkableTraits::emptyValue):
        (WTF::ObjectIdentifier::ObjectIdentifier): Add MarkableTraits for ObjectIdentifier.

2020-02-12  Simon Fraser  <simon.fraser@apple.com>

        Remove CSS_DEVICE_ADAPTATION
        https://bugs.webkit.org/show_bug.cgi?id=203479

        Reviewed by Tim Horton.

        CSS Working Group resolved to remove @viewport <https://github.com/w3c/csswg-drafts/issues/4766>,
        so remove the code.

        * wtf/PlatformEnable.h:

2020-02-11  Fujii Hironori  <Hironori.Fujii@sony.com>

        Fix declarations marked by wrong export macros (WEBCORE_EXPORT and WTF_EXPORT)
        https://bugs.webkit.org/show_bug.cgi?id=207453

        Reviewed by Ross Kirsling.

        Export macros are prone to be misused because thier definitions
        are identical for POSIX ports. They can be used interchangeably on
        such ports.

        WTF should use WTF_EXPORT_PRIVATE instead of WTF_EXPORT.

        * wtf/HexNumber.h:
        * wtf/Language.h:
        * wtf/Logger.h:
        * wtf/ProcessPrivilege.h:
        * wtf/cocoa/CrashReporter.h:
        * wtf/cocoa/Entitlements.h:
        * wtf/text/LineEnding.h:
        * wtf/text/TextBreakIterator.h:
        * wtf/text/icu/UTextProviderLatin1.h:
        Replaced WTF_EXPORT with WTF_EXPORT_PRIVATE.

2020-02-11  Eric Carlson  <eric.carlson@apple.com>

        Support in-band VTT captions when loading media in the GPU Process
        https://bugs.webkit.org/show_bug.cgi?id=207467
        <rdar://problem/59312749>

        Reviewed by Jer Noble.

        * wtf/LoggerHelper.h:
        (WTF::LoggerHelper::childLogIdentifier const):

2020-02-10  Yusuke Suzuki  <ysuzuki@apple.com>

        Unreviewed, speculative build fix on watchOS simulator
        https://bugs.webkit.org/show_bug.cgi?id=207183

        * wtf/HashTable.h:
        (WTF::HashTableCapacityForSize::capacityForSize):

2020-02-10  Yusuke Suzuki  <ysuzuki@apple.com>

        Unreviewed, fix build failure on watchOS simulator
        https://bugs.webkit.org/show_bug.cgi?id=207183

        * wtf/HashTable.h:
        (WTF::HashTableCapacityForSize::capacityForSize):

2020-02-10  Daniel Bates  <dabates@apple.com>

        Disallow setting base URL to a data or JavaScript URL
        https://bugs.webkit.org/show_bug.cgi?id=207136

        Reviewed by Brent Fulgham.

        Add some more macro definitions.

        * wtf/spi/darwin/dyldSPI.h:

2020-02-10  Truitt Savell  <tsavell@apple.com>

        Unreviewed, rolling out r256091.

        Broke internal builds

        Reverted changeset:

        "Move trivial definitions from FeatureDefines.xcconfig to
        PlatformEnableCocoa.h"
        https://bugs.webkit.org/show_bug.cgi?id=207155
        https://trac.webkit.org/changeset/256091

2020-02-10  Truitt Savell  <tsavell@apple.com>

        Unreviewed, rolling out r256103.

        This patch is blocking the rollout of r256091

        Reverted changeset:

        "Move JavaScriptCore related feature defines from
        FeatureDefines.xcconfig to PlatformEnableCocoa.h"
        https://bugs.webkit.org/show_bug.cgi?id=207436
        https://trac.webkit.org/changeset/256103

2020-02-09  Keith Rollin  <krollin@apple.com>

        Re-enable LTO for ARM builds
        https://bugs.webkit.org/show_bug.cgi?id=207402
        <rdar://problem/49190767>

        Reviewed by Sam Weinig.

        Bug 190758 re-enabled LTO for Production builds for x86-family CPUs.
        Enabling it for ARM was left out due to a compiler issue. That issue
        has been fixed, and so now we can re-enable LTO for ARM.

        * Configurations/Base.xcconfig:

2020-02-08  Sam Weinig  <weinig@apple.com>

        Move JavaScriptCore related feature defines from FeatureDefines.xcconfig to PlatformEnableCocoa.h
        https://bugs.webkit.org/show_bug.cgi?id=207436

        Reviewed by Tim Horton.

        * wtf/PlatformEnable.h:
        Add default values for ENABLE_FAST_JIT_PERMISSIONS and ENABLE_SEPARATED_WX_HEAP.

        * wtf/PlatformEnableCocoa.h:
        Added ENABLE_FAST_JIT_PERMISSIONS (from FeatureDefines.xcconfig), ENABLE_SEPARATED_WX_HEAP
        (from PlatformEnable.h) and ENABLE_FTL_JIT (from both FeatureDefines.xcconfig and PlatformEnable.h).

2020-02-08  Sam Weinig  <weinig@apple.com>

        Migrate definition of USE_PLATFORM_REGISTERS_WITH_PROFILE to PlatformUse.h
        https://bugs.webkit.org/show_bug.cgi?id=207428

        Reviewed by Tim Horton.

        * wtf/PlatformUse.h:
        Move definition of USE_PLATFORM_REGISTERS_WITH_PROFILE from AdditionalFeatureDefines.h, where 
        it did not belong.

2020-02-08  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] Try using 75% load factor for HashTable
        https://bugs.webkit.org/show_bug.cgi?id=207183

        Reviewed by Mark Lam.

        We know that hash-table is one of the most memory consuming part in WebKit.
        By analyzing many production hash-table implementations[1], I found that many
        of them are using 75% load-factor while our one is 50%.

        This patch changes the load-factor from 50% to 75%. But we pick 75% only for
        small tables which capacity is <= 1024 based on collected data by micro-benchmarking.
        The collected data is telling that longer probe-length affects on performance if table
        size gets larger.

        [1]: LLVM DenseMap, Abseil's, rust's, and so on.

        * wtf/HashTable.h:
        (WTF::HashTableCapacityForSize::shouldExpand):
        (WTF::HashTableCapacityForSize::capacityForSize):
        (WTF::HashTable::shouldExpand const):
        (WTF::KeyTraits>::computeBestTableSize):

2020-02-08  Sam Weinig  <weinig@apple.com>

        Move trivial definitions from FeatureDefines.xcconfig to PlatformEnableCocoa.h
        https://bugs.webkit.org/show_bug.cgi?id=207155

        Reviewed by Tim Horton.

        Move all trivial definitions (just ENABLE_FOO = ENABLE_FOO; or ENABLE_BAR = ;)
        from the FeatureDefines.xcconfigs to PlatformEnableCocoa.h, ensuring each one
        also has a default value in PlatformEnable.h
        
        ENABLE_INSPECTOR_TELEMETRY, ENABLE_TEXT_AUTOSIZING, ENABLE_WEBGL, ENABLE_METER_ELEMENT,
        ENABLE_VIDEO_TRACK, ENABLE_WEB_AUDIO and ENABLE_CURSOR_VISIBILITY are all now always
        set to 1 for Cocoa (if not defined already), as this was already the case via the xcconfig.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:

2020-02-07  Alex Christensen  <achristensen@webkit.org>

        Harden HashTable IPC decoders
        https://bugs.webkit.org/show_bug.cgi?id=207415

        Reviewed by Chris Dumez.

        * wtf/HashCountedSet.h:

2020-02-07  Ryan Haddad  <ryanhaddad@apple.com>

        Unreviewed, rolling out r256051.

        Broke internal builds.

        Reverted changeset:

        "Move trivial definitions from FeatureDefines.xcconfig to
        PlatformEnableCocoa.h"
        https://bugs.webkit.org/show_bug.cgi?id=207155
        https://trac.webkit.org/changeset/256051

2020-02-07  Stephan Szabo  <stephan.szabo@sony.com>

        [Win] Two FileSystem API tests fail
        https://bugs.webkit.org/show_bug.cgi?id=207388

        Reviewed by Don Olmstead.

        * wtf/win/FileSystemWin.cpp:
        Make getFinalPathName return dos path rather than nt volume path.
        Change createSymbolicLink return to match CreateSymbolicLinkW
        Have directoryName strip trailing slashes.

2020-02-03  Sam Weinig  <weinig@apple.com>

        Move trivial definitions from FeatureDefines.xcconfig to PlatformEnableCocoa.h
        https://bugs.webkit.org/show_bug.cgi?id=207155

        Reviewed by Tim Horton.

        Move all trivial definitions (just ENABLE_FOO = ENABLE_FOO; or ENABLE_BAR = ;)
        from the FeatureDefines.xcconfigs to PlatformEnableCocoa.h, ensuring each one
        also has a default value in PlatformEnable.h
        
        ENABLE_INSPECTOR_TELEMETRY, ENABLE_TEXT_AUTOSIZING, ENABLE_WEBGL, ENABLE_METER_ELEMENT,
        ENABLE_VIDEO_TRACK, ENABLE_WEB_AUDIO and ENABLE_CURSOR_VISIBILITY are all now always
        set to 1 for Cocoa (if not defined already), as this was already the case via the xcconfig.

        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h:

2020-02-07  youenn fablet  <youenn@apple.com>

        Mandate UUID version 4 for mDNS ICE candidates
        https://bugs.webkit.org/show_bug.cgi?id=207329
        <rdar://problem/59221606>

        Address post-commit comments from Darin by using isASCIIHexDigit.

        Unreviewed.

        * wtf/UUID.cpp:
        (WTF::isVersion4UUID):
        (WTF::isHexadecimalCharacter): Deleted.

2020-02-07  youenn fablet  <youenn@apple.com>

        Mandate UUID version 4 for mDNS ICE candidates
        https://bugs.webkit.org/show_bug.cgi?id=207329

        Reviewed by Alex Christensen.

        Add a routine to validate version 4 UUID.

        * wtf/UUID.cpp:
        (WTF::isHexadecimalCharacter):
        (WTF::isVersion4UUID):
        * wtf/UUID.h:

2020-02-07  Yusuke Suzuki  <ysuzuki@apple.com>

        Unreviewed, revert 75% load-factor because of JetStream2/string-unpack-code-SP regression
        https://bugs.webkit.org/show_bug.cgi?id=207183

        * wtf/HashTable.h:
        (WTF::HashTable::shouldExpand const):
        (WTF::KeyTraits>::computeBestTableSize):
        (WTF::HashTable::shouldExpand): Deleted.
        (WTF::HashTableCapacityForSize::capacityForSize): Deleted.

2020-02-07  youenn fablet  <youenn@apple.com>

        [Cocoa] Use AVAssetWriterDelegate to implement MediaRecorder
        https://bugs.webkit.org/show_bug.cgi?id=206582

        Reviewed by Eric Carlson.

        * wtf/PlatformHave.h:

2020-02-06  Mark Lam  <mark.lam@apple.com>

        Add a comment in StringView::setUnderlyingString(const StringView&) for clarification.
        https://bugs.webkit.org/show_bug.cgi?id=207368
        <rdar://problem/59211075>

        Reviewed by Keith Miller.

        Every time I read this code, I have to re-deduce why this code is thread safe.
        So, I'm just going to add a comment to document it.

        * wtf/text/StringView.cpp:
        (WTF::StringView::setUnderlyingString):

2020-02-06  Myles C. Maxfield  <mmaxfield@apple.com>

        REGRESSION(r254534): 1-3% regression on PLT
        https://bugs.webkit.org/show_bug.cgi?id=207244
        <rdar://problem/58821709>

        Reviewed by Simon Fraser.

        CTFontTransformGlyphsWithLanguage() is only acceptable on certain OSes.

        * wtf/PlatformHave.h:

2020-02-06  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r255910, r255970, and r255972.
        https://bugs.webkit.org/show_bug.cgi?id=207345

        Broke internal builds (Requested by ryanhaddad on #webkit).

        Reverted changesets:

        "[Cocoa] Use AVAssetWriterDelegate to implement MediaRecorder"
        https://bugs.webkit.org/show_bug.cgi?id=206582
        https://trac.webkit.org/changeset/255910

        "[Cocoa] Use AVAssetWriterDelegate to implement MediaRecorder"
        https://bugs.webkit.org/show_bug.cgi?id=206582
        https://trac.webkit.org/changeset/255970

        "[Cocoa] Use AVAssetWriterDelegate to implement MediaRecorder"
        https://bugs.webkit.org/show_bug.cgi?id=206582
        https://trac.webkit.org/changeset/255972

2020-02-06  Ryan Haddad  <ryanhaddad@apple.com>

        [Cocoa] Use AVAssetWriterDelegate to implement MediaRecorder
        https://bugs.webkit.org/show_bug.cgi?id=206582

        Unreviewed internal build fix attempt.

        * wtf/PlatformHave.h: Fix copy / paste error.

2020-02-06  Ryan Haddad  <ryanhaddad@apple.com>

        [Cocoa] Use AVAssetWriterDelegate to implement MediaRecorder
        https://bugs.webkit.org/show_bug.cgi?id=206582

        Unreviewed internal build fix attempt.

        * wtf/PlatformHave.h:

2020-02-06  youenn fablet  <youenn@apple.com>

        [Cocoa] Use AVAssetWriterDelegate to implement MediaRecorder
        https://bugs.webkit.org/show_bug.cgi?id=206582

        Reviewed by Eric Carlson.

        * wtf/PlatformHave.h:

2020-02-05  Don Olmstead  <don.olmstead@sony.com>

        [PlayStation] Build a shared JavaScriptCore
        https://bugs.webkit.org/show_bug.cgi?id=198446

        Reviewed by Fujii Hironori.

        Add bmalloc definition when compiling WTF. Remove LanguageUnix.cpp since
        LanguagePlayStation.cpp is present which results in duplicate symbol definitions.

        * wtf/PlatformPlayStation.cmake:

2020-02-05  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] Try using 75% load factor for HashTable
        https://bugs.webkit.org/show_bug.cgi?id=207183

        Reviewed by Mark Lam.

        We know that hash-table is one of the most memory consuming part in WebKit.
        By analyzing many production hash-table implementations[1], I found that many
        of them are using 75% load-factor while our one is 50%.

        A/B test shows that 75% load-factor is performance-neutral in Speedometer2 and
        JetStream2, while it offers 2~% improvement in Membuster. This means that we are
        wasting too much memory for no-performance-improvement.

        This patch changes the load-factor from 50% to 75%.

        [1]: LLVM DenseMap, Abseil's, rust's, and so on.

        * wtf/HashTable.h:
        (WTF::HashTable::shouldExpand):
        (WTF::HashTable::shouldExpand const):
        (WTF::HashTableCapacityForSize::capacityForSize):
        (WTF::KeyTraits>::computeBestTableSize):

2020-02-05  Per Arne Vollan  <pvollan@apple.com>

        [iOS] Do not create sandbox reports when the UI process cannot issue extensions to diagnostics service
        https://bugs.webkit.org/show_bug.cgi?id=207279
        <rdar://problem/59030957>

        Reviewed by Brent Fulgham.

        Add flag which avoids generating sandbox reports.

        * wtf/spi/darwin/SandboxSPI.h:

2020-02-05  Alex Christensen  <achristensen@webkit.org>

        Make WKWebView._negotiatedLegacyTLS accurate when loading main resouorce from network or cache
        https://bugs.webkit.org/show_bug.cgi?id=207207

        Reviewed by Chris Dumez.

        * wtf/persistence/PersistentDecoder.cpp:
        (WTF::Persistence::Decoder::decode):
        * wtf/persistence/PersistentDecoder.h:
        * wtf/persistence/PersistentEncoder.cpp:
        (WTF::Persistence::Encoder::encode):
        * wtf/persistence/PersistentEncoder.h:

2020-02-05  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r255818.
        https://bugs.webkit.org/show_bug.cgi?id=207270

        It is breaking some Mac builds (Requested by youenn on
        #webkit).

        Reverted changeset:

        "[Cocoa] Use AVAssetWriterDelegate to implement MediaRecorder"
        https://bugs.webkit.org/show_bug.cgi?id=206582
        https://trac.webkit.org/changeset/255818

2020-02-05  youenn fablet  <youenn@apple.com>

        [Cocoa] Use AVAssetWriterDelegate to implement MediaRecorder
        https://bugs.webkit.org/show_bug.cgi?id=206582

        Reviewed by Eric Carlson.

        * wtf/PlatformHave.h:

2020-02-04  Adrian Perez de Castro  <aperez@igalia.com>

        Non-unified build fixes early February 2020 edition
        https://bugs.webkit.org/show_bug.cgi?id=207227

        Reviewed by Don Olmstead.

        * wtf/SingleRootGraph.h: Add missing inclusion of wtf/StringPrintStream.h

2020-02-04  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Introduce UnlinkedCodeBlockGenerator and reduce sizeof(UnlinkedCodeBlock)
        https://bugs.webkit.org/show_bug.cgi?id=207087

        Reviewed by Tadeu Zagallo.

        Add more useful methods for RefCountedArray.

        * wtf/RefCountedArray.h:
        (WTF::RefCountedArray::operator=):
        (WTF::RefCountedArray::isEmpty const):
        (WTF::RefCountedArray::front):
        (WTF::RefCountedArray::front const):
        (WTF::RefCountedArray::last):
        (WTF::RefCountedArray::last const):

2020-02-03  Alex Christensen  <achristensen@webkit.org>

        Reduce size of HashMap and HashSet
        https://bugs.webkit.org/show_bug.cgi?id=207138

        Reviewed by Yusuke Suzuki.

        This reduces sizeof(HashMap) and sizeof(HashSet) from 24 to 8 on 64-bit systems.
        I measured that the overwhelming majority of HashMaps and HashSets never see more than 0 elements,
        so I moved the table metadata (tableSize, tableSizeMask, keyCount, deletedCount) to inside the
        dynamically allocated memory.  This makes another branch in size() for non-empty tables
        and an additional read and write when rehashing in exchange for fewer writes in the constructor
        and increased cache locality of everything that uses HashMap and HashSet, which is basically everything.

        * wtf/HashTable.h:
        (WTF::HashTable::~HashTable):
        (WTF::HashTable::end):
        (WTF::HashTable::end const):
        (WTF::HashTable::random):
        (WTF::HashTable::size const):
        (WTF::HashTable::capacity const):
        (WTF::HashTable::isEmpty const):
        (WTF::HashTable::reserveInitialCapacity):
        (WTF::HashTable::shouldExpand const):
        (WTF::HashTable::mustRehashInPlace const):
        (WTF::HashTable::shouldShrink const):
        (WTF::HashTable::shrink):
        (WTF::HashTable::makeIterator):
        (WTF::HashTable::makeConstIterator const):
        (WTF::HashTable::makeKnownGoodIterator):
        (WTF::HashTable::makeKnownGoodConstIterator const):
        (WTF::HashTable::tableSize const):
        (WTF::HashTable::setTableSize const):
        (WTF::HashTable::tableSizeMask const):
        (WTF::HashTable::setTableSizeMask):
        (WTF::HashTable::keyCount const):
        (WTF::HashTable::setKeyCount const):
        (WTF::HashTable::deletedCount const):
        (WTF::HashTable::setDeletedCount const):
        (WTF::KeyTraits>::HashTable):
        (WTF::KeyTraits>::inlineLookup):
        (WTF::KeyTraits>::lookupForWriting):
        (WTF::KeyTraits>::fullLookupForWriting):
        (WTF::KeyTraits>::addUniqueForInitialization):
        (WTF::KeyTraits>::add):
        (WTF::KeyTraits>::addPassingHashCode):
        (WTF::KeyTraits>::remove):
        (WTF::KeyTraits>::removeIf):
        (WTF::KeyTraits>::allocateTable):
        (WTF::KeyTraits>::deallocateTable):
        (WTF::KeyTraits>::expand):
        (WTF::KeyTraits>::shrinkToBestSize):
        (WTF::KeyTraits>::deleteReleasedWeakBuckets):
        (WTF::KeyTraits>::rehash):
        (WTF::KeyTraits>::clear):
        (WTF::KeyTraits>::swap):
        (WTF::KeyTraits>::checkTableConsistencyExceptSize const):

2020-02-03  Sam Weinig  <weinig@apple.com>

        Start splitting platform specific overrides of default enable behavior into their own files
        https://bugs.webkit.org/show_bug.cgi?id=207105

        Reviewed by Dean Jackson.

        Splits out platform specific overrides of default enable behavior into separate files, 
        starting with one for all of the Cocoa related ports, one for Apple's Windows port, and
        one for the WinCario port.
        
        The rule is now that all ENABLE_* macros should have a default defined in PlatformEnable.h,
        but platforms are allowed to override it via their PlatformEnable*.h file. For now, I manually
        ensured that all the defines in PlatformEnableCocoa.h, PlatformEnableWinApple.h and PlatformEnableWinCairo.h
        also had defaults in PlatformEnable.h, but going forward this needs be validated either through
        some sort of macro-based validation, through the style checker or something else.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/PlatformEnable.h:
        * wtf/PlatformEnableCocoa.h: Copied from Source/WTF/wtf/PlatformEnable.h.
        * wtf/PlatformEnableWinApple.h: Copied from Source/WTF/wtf/PlatformEnable.h.
        * wtf/PlatformEnableWinCairo.h: Copied from Source/WTF/wtf/PlatformEnable.h.

2020-01-31  Don Olmstead  <don.olmstead@sony.com>

        [CMake] Add _PRIVATE_LIBRARIES to framework
        https://bugs.webkit.org/show_bug.cgi?id=207004

        Reviewed by Konstantin Tokarev.

        Move uses of PRIVATE within _LIBRARIES to _PRIVATE_LIBRARIES. Any _LIBRARIES appended
        afterwards will have that visibility set erroneously.

        * wtf/PlatformFTW.cmake:

2020-01-30  Conrad Shultz  <conrad_shultz@apple.com>

        `FALLTHROUGH` macro isn't properly defined when building Objective-C files using Clang
        https://bugs.webkit.org/show_bug.cgi?id=206637

        Reviewed by Darin Adler.

        Allow the `FALLTHROUGH` macro to be defined properly when building with either GCC
        or Clang.

        * wtf/Compiler.h:

2020-01-30  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] Remove PackedIntVector
        https://bugs.webkit.org/show_bug.cgi?id=207018

        Reviewed by Mark Lam.

        Simply removing PackedIntVector since (1) nobody uses it, (2) it is somewhat broken (like, size()), and (3) its implementation is not so efficient.
        If we want to have this feature, we can recreate it.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/PackedIntVector.h: Removed.

2020-01-30  Jonathan Bedard  <jbedard@apple.com>

        PAL: Remove old iOS version macros
        https://bugs.webkit.org/show_bug.cgi?id=206905

        Reviewed by Darin Adler.

        * wtf/PlatformHave.h: Add HAVE(NSPROGRESS_PUBLISHING_SPI).

2020-01-28  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Should use light theme unless website declares support for dark themes in color-schemes property
        https://bugs.webkit.org/show_bug.cgi?id=197947

        Reviewed by Michael Catanzaro.

        Do not define HAVE_OS_DARK_MODE_SUPPORT for the GTK port.

        * wtf/PlatformHave.h:

2020-01-28  Jonathan Bedard  <jbedard@apple.com>

        WebCore: Guard uneven corners in rounded rectangles
        https://bugs.webkit.org/show_bug.cgi?id=206838

        Reviewed by Darin Adler.

        * wtf/PlatformHave.h: Add HAVE(CG_PATH_UNEVEN_CORNERS_ROUNDEDRECT).

2020-01-27  Jonathan Bedard  <jbedard@apple.com>

        WebCore: Remove iOS 11 macros from RenderThemeIOS.mm
        https://bugs.webkit.org/show_bug.cgi?id=206787

        Reviewed by Darin Adler.

        * wtf/PlatformHave.h: Add HAVE(SYSTEM_FONT_STYLE_TITLE_0) and HAVE(SYSTEM_FONT_STYLE_TITLE_4).

2020-01-27  Jonathan Bedard  <jbedard@apple.com>

        Fix OpenSource iphoneos arm64e build
        https://bugs.webkit.org/show_bug.cgi?id=206703

        Reviewed by Yusuke Suzuki.

        * wtf/PlatformUse.h: Add USE(DARWIN_REGISTER_MACROS) check.

2020-01-27  Ryan Haddad  <ryanhaddad@apple.com>

        Unreviewed, rolling out r255159.

        Broke the watchOS build.

        Reverted changeset:

        "Fix OpenSource iphoneos arm64e build"
        https://bugs.webkit.org/show_bug.cgi?id=206703
        https://trac.webkit.org/changeset/255159

2020-01-27  Jonathan Bedard  <jbedard@apple.com>

        Fix OpenSource iphoneos arm64e build
        https://bugs.webkit.org/show_bug.cgi?id=206703

        Reviewed by Yusuke Suzuki.

        * wtf/PlatformUse.h: Add USE(DARWIN_REGISTER_MACROS) check.

2020-01-27  Mark Lam  <mark.lam@apple.com>

        Make getVTablePointer() an inline function to be compliant with WebKit style guidelines.
        https://bugs.webkit.org/show_bug.cgi?id=206816

        Reviewed by Darin Adler.

        Convert getVTablePointer() from a macro into an inline template function.  This
        makes the naming compliant with WebKit style guidelines.

        * wtf/PointerPreparations.h:
        (WTF::getVTablePointer):

2020-01-25  Brady Eidson  <beidson@apple.com>

        Make ContentWorlds be identified by an ObjectIdentifier instead of a uint64_t
        https://bugs.webkit.org/show_bug.cgi?id=206784

        Reviewed by Alex Christensen.

        * wtf/ObjectIdentifier.h:
        (WTF::ObjectIdentifier::generate):
        (WTF::ObjectIdentifier::generateThreadSafe):
        (WTF::ObjectIdentifier::enableGenerationProtection): To allow restricting generating an identifier to the UIProcess.

2020-01-25  Mark Lam  <mark.lam@apple.com>

        Introduce a getVTablePointer() utility function.
        https://bugs.webkit.org/show_bug.cgi?id=206804
        <rdar://problem/58872290>

        Reviewed by Yusuke Suzuki and Oliver Hunt.

        With getVTablePointer(), we can abstract away how we get a vtable function pointer
        without assuming the way it is signed for ARM64E.  With this, we can remove the
        WTF_PREPARE_VTBL_POINTER_FOR_INSPECTION macro which assumes how a vtable function
        pointer is signed.

        * wtf/PointerPreparations.h:

2020-01-25  Mark Lam  <mark.lam@apple.com>

        Add some tests for dynamically allocated StaticStringImpls.
        https://bugs.webkit.org/show_bug.cgi?id=206802

        Reviewed by Darin Adler.

        Removed some unnecessary explicit specialization of the charactersAreAllASCII()
        template function.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::createFromLiteral):
        (WTF::StringImpl::createStaticStringImpl):

2020-01-24  Mark Lam  <mark.lam@apple.com>

        Move singleton Intl string locales out of JSGlobalObject.
        https://bugs.webkit.org/show_bug.cgi?id=206791
        <rdar://problem/58889037>

        Reviewed by Yusuke Suzuki.

        Fix a bug in StringImpl::createStaticStringImpl(): I forgot to set its hash value
        when I introduced it.  StaticStringImpls require that its hash code be set ahead
        of time, and cannot be mutated at runtime.  See the comment in the definition of
        StaticStringImpl in StringImpl.h.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::createStaticStringImpl):

2020-01-24  Mark Lam  <mark.lam@apple.com>

        IntlObject's cached strings should be immortal and safe for concurrent access.
        https://bugs.webkit.org/show_bug.cgi?id=206779
        <rdar://problem/58831763>

        Reviewed by Yusuke Suzuki.

        Add a factory for creating a dynamically allocated StaticStringImpl.

        Note: StaticStringImpl is guaranteed to have the same shape as StringImpl.
        The only difference is that s_refCountFlagIsStaticString is set on the refCount
        for StaticStringImpl.  Since the client will use the StaticStringImpl as a
        StringImpl, we implement the factory by using StringImpl::createInternal() for
        simplicity, and set the s_refCountFlagIsStaticString flag thereafter.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::createStaticStringImpl):
        * wtf/text/StringImpl.h:

2020-01-24  Keith Rollin  <krollin@apple.com>

        Fix internal Apple builds after r254411
        https://bugs.webkit.org/show_bug.cgi?id=206723
        <rdar://problem/58844735>

        Reviewed by Maciej Stachowiak.

        The default Xcode build configuration has changed between macOS 10.13
        and macOS 10.15, such that references to some frameworks when bulding
        for the latter don't work when building for the former. Fix this by
        explicitly adding support for the desired build location rather than
        assuming such support will be provided for us.

        * Configurations/WTF.xcconfig:

2020-01-24  Jonathan Bedard  <jbedard@apple.com>

        WTF: Remove old iOS version macros
        https://bugs.webkit.org/show_bug.cgi?id=206634
        <rdar://problem/58818561>

        Reviewed by Darin Adler.

        * wtf/PlatformEnable.h: Remove iOS 12 version macro.
        * wtf/PlatformHave.h: Ditto.
        * wtf/PlatformUse.h: Ditto.

2020-01-22  Darin Adler  <darin@apple.com>

        Remove some unneeded definitions from Platform.h family headers
        https://bugs.webkit.org/show_bug.cgi?id=206642

        Reviewed by Eric Carlson.

        * wtf/PlatformEnable.h:
        Removed ENABLE_RESPECT_EXIF_ORIENTATION because it was unused.

        * wtf/PlatformHave.h:
        Removed HAVE_PASSKIT_API_TYPE because it is now unused.
        Removed HAVE_MERGESORT because it was unused.
        Removed HAVE_AVFOUNDATION_VIDEO_OUTPUT because it is now unused.
        Removed HAVE_AVFOUNDATION_MEDIA_SELECTION_GROUP because it is now unused.
        Removed HAVE_CFNETWORK_WITH_CONTENT_ENCODING_SNIFFING_OVERRIDE because it was unused.

        * wtf/PlatformUse.h:
        Removed USE_ARENA_ALLOC_ALIGNMENT_INTEGER because it was unused.
        Removed USE_NETWORK_CFDATA_ARRAY_CALLBACK because it is now unused.

2020-01-22  Eric Carlson  <eric.carlson@apple.com>

        uniqueLogIdentifier() should generate a unique identifiers
        https://bugs.webkit.org/show_bug.cgi?id=206612

        Reviewed by Brent Fulgham.

        * wtf/LoggerHelper.h:
        (WTF::LoggerHelper::uniqueLogIdentifier):

2020-01-22  Sam Weinig  <weinig@apple.com>

        Remove unused enable macro ENABLE_JIT_CONSTANT_BLINDING
        https://bugs.webkit.org/show_bug.cgi?id=206415

        Reviewed by Anders Carlsson.

        * wtf/PlatformEnable.h:
        ENABLE_JIT_CONSTANT_BLINDING is not used anywhere in WebKit so can be removed.

2020-01-22  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] DateMath should accept more ISO-8601 timezone designators even if they are not included in ECMA262 to produce expected results in the wild code
        https://bugs.webkit.org/show_bug.cgi?id=160287

        Reviewed by Ross Kirsling.

        While ECMA262[1] always requires ":" in a timezone designator between hours and minutes (like, "hh:mm"),
        ISO-8601 can accept additional forms, "+hh" and "+hhmm". This patch relaxes our Date parsing to accept this
        type of timezone designators so that we can accept wider forms of date time formats. This addition does not
        break the existing parsing rules since '+-' prefix can clarify that following sequences are timezones.

        [1]: https://tc39.es/ecma262/#sec-date-time-string-format
        [2]: https://en.wikipedia.org/wiki/ISO_8601#Time_zone_designators

        * wtf/DateMath.cpp:
        (WTF::parseES5TimePortion):
        (WTF::parseES5DateFromNullTerminatedCharacters):

2020-01-21  Ross Kirsling  <ross.kirsling@sony.com>

        [JSC] Date parse logic should be less redundant
        https://bugs.webkit.org/show_bug.cgi?id=206560

        Reviewed by Darin Adler.

        * wtf/DateMath.cpp:
        (WTF::parseDateFromNullTerminatedCharacters):
        * wtf/DateMath.h:
        Align function signature with parseES5DateFromNullTerminatedCharacters.
        Namely, drop the integer out param and flip the boolean one.

2020-01-21  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] AtomStringTable should be small
        https://bugs.webkit.org/show_bug.cgi?id=206400

        Reviewed by Sam Weinig.

        AtomStringTable is the largest hashtable typically. It takes more
        than 256KB per WebProcess (sometimes, it took 1MB or more).
        This patch leverages PackedPtr to compact it from 8 bytes per entry
        to 6 bytes per entry.

        While this is still large, we should investigate how to compact C++
        pointers in 4 bytes[1] to shrink memory footprint, since WebKit
        memory is used by Vector and HashTable fulfilled with pointers.

        [1]: https://bugs.webkit.org/show_bug.cgi?id=206469

        * wtf/DumbPtrTraits.h:
        (WTF::DumbPtrTraits::hashTableDeletedValue):
        (WTF::DumbPtrTraits::isHashTableDeletedValue):
        * wtf/Forward.h:
        * wtf/HashTraits.h:
        * wtf/Packed.h:
        (WTF::Packed<T::Packed):
        (WTF::Packed<T::isHashTableDeletedValue const):
        (WTF::GetPtrHelper<PackedPtr<T>>::getPtr):
        (WTF::PackedPtrTraits::hashTableDeletedValue):
        (WTF::PackedPtrTraits::isHashTableDeletedValue):
        (WTF::alignof): Deleted.
        * wtf/Ref.h:
        (WTF::Ref::Ref):
        (WTF::Ref::isHashTableDeletedValue const):
        (WTF::Ref::hashTableDeletedValue): Deleted.
        * wtf/RefPtr.h:
        (WTF::RefPtr::RefPtr):
        (WTF::RefPtr::isHashTableDeletedValue const):
        (WTF::RefPtr::hashTableDeletedValue): Deleted.
        * wtf/text/AtomStringImpl.cpp:
        (WTF::addToStringTable):
        (WTF::CStringTranslator::equal):
        (WTF::CStringTranslator::translate):
        (WTF::UCharBufferTranslator::equal):
        (WTF::UCharBufferTranslator::translate):
        (WTF::HashAndUTF8CharactersTranslator::equal):
        (WTF::HashAndUTF8CharactersTranslator::translate):
        (WTF::SubstringTranslator::translate):
        (WTF::SubstringTranslator8::equal):
        (WTF::SubstringTranslator16::equal):
        (WTF::LCharBufferTranslator::equal):
        (WTF::LCharBufferTranslator::translate):
        (WTF::BufferFromStaticDataTranslator::equal):
        (WTF::BufferFromStaticDataTranslator::translate):
        (WTF::AtomStringImpl::addSlowCase):
        (WTF::AtomStringImpl::remove):
        (WTF::AtomStringImpl::lookUpSlowCase):
        (WTF::AtomStringImpl::lookUp):
        * wtf/text/AtomStringTable.cpp:
        (WTF::AtomStringTable::~AtomStringTable):
        * wtf/text/AtomStringTable.h:
        (WTF::AtomStringTable::table):
        (): Deleted.
        * wtf/text/StringHash.h:
        (WTF::StringHash::hash):
        (WTF::StringHash::equal):
        (WTF::ASCIICaseInsensitiveHash::hash):
        (WTF::ASCIICaseInsensitiveHash::equal):
        * wtf/text/StringImpl.h:

2020-01-17  Sam Weinig  <weinig@apple.com>

        Platform.h is out of control Part 8: Macros are used inconsistently
        https://bugs.webkit.org/show_bug.cgi?id=206425

        Reviewed by Darin Adler.

        Start addressing FIXMEs added to Platform.h (and helper files) during previous
        cleanup work.
        
        - Renames WTF_CPU_EFFECTIVE_ADDRESS_WIDTH to WTF_OS_CONSTANT_EFFECTIVE_ADDRESS_WIDTH,
          making it available via new macro OS_CONSTANT(...), and syncs bmalloc redefinition.
        - Renames:
             USE_LLINT_EMBEDDED_OPCODE_ID to ENABLE_LLINT_EMBEDDED_OPCODE_ID
             USE_UDIS86 to ENABLE_UDIS86 
             USE_ARM64_DISASSEMBLER to ENABLE_ARM64_DISASSEMBLER
          Enable is more appropriate here as these enable functionality within webkit.
        - Removes undefs that are no longer needed due to only defining the macro once now.
        - Removes dead defined(__LP64__) check after PLATFORM(MAC) macOS is always 64-bit these
          days.

        * wtf/Packed.h:
        (WTF::alignof):
        * wtf/Platform.h:
        * wtf/PlatformEnable.h:
        * wtf/PlatformOS.h:
        * wtf/WTFAssertions.cpp:
        * wtf/text/StringCommon.h:

2020-01-20  David Kilzer  <ddkilzer@apple.com>

        Fix missing header guards and clean up empty files in bmalloc, WTF, JavaScriptCore
        <https://webkit.org/b/206481>

        Reviewed by Darin Adler.

        * wtf/cocoa/Entitlements.h:
        * wtf/win/PathWalker.h:
        - Add #pragma once.

2020-01-19  Claudio Saavedra  <csaavedra@igalia.com>

        [GTK] Remove usage of deprecated GTimeVal
        https://bugs.webkit.org/show_bug.cgi?id=206358

        Reviewed by Žan Doberšek.

        Use g_get_real_time() directly instead of deprecated and unsafe API.

        * wtf/CurrentTime.cpp:
        (WTF::currentTime):

2020-01-16  Keith Miller  <keith_miller@apple.com>

        Reland bytecode checkpoints since bugs have been fixed
        https://bugs.webkit.org/show_bug.cgi?id=206361

        Unreviewed, reland.

        The watch bugs have been fixed by https://trac.webkit.org/changeset/254674

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Bitmap.h:
        (WTF::WordType>::invert):
        (WTF::WordType>::operator):
        (WTF::WordType>::operator const const):
        * wtf/CMakeLists.txt:
        * wtf/EnumClassOperatorOverloads.h: Added.
        * wtf/FastBitVector.h:
        (WTF::FastBitReference::operator bool const):
        (WTF::FastBitReference::operator|=):
        (WTF::FastBitReference::operator&=):
        (WTF::FastBitVector::fill):
        (WTF::FastBitVector::grow):
        * wtf/UnalignedAccess.h:
        (WTF::unalignedLoad):
        (WTF::unalignedStore):

2020-01-16  Tim Horton  <timothy_horton@apple.com>

        Fix the build after r254701
        <rdar://problem/58667355>

        * wtf/Platform.h:
        * wtf/PlatformEnable.h:
        AdditionalFeatureDefines has to come first.

2020-01-16  Sam Weinig  <weinig@apple.com>

        Platform.h is out of control Part 7: Split calling convention macro definitions out of Platform.h and into a new PlatformCallingConventions.h
        https://bugs.webkit.org/show_bug.cgi?id=206377

        Reviewed by Anders Carlsson.

        As a another step towards cleaning up Platform.h, split out all the calling convention
        macros into their own file.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        Add new header.

        * wtf/Platform.h:
        * wtf/PlatformCPU.h:
        * wtf/PlatformEnable.h:
        * wtf/PlatformHave.h:
        * wtf/PlatformLegacy.h:
        * wtf/PlatformOS.h:
        * wtf/PlatformUse.h:
        Unify indirect inclusion guard.

        * wtf/PlatformCallingConventions.h: Copied from Source/WTF/wtf/Platform.h.

2020-01-16  Robin Morisset  <rmorisset@apple.com>

        Use dataLogIf more regularly
        https://bugs.webkit.org/show_bug.cgi?id=206332

        Reviewed by Keith Miller.

        * wtf/DataLog.h:
        (WTF::dataLog): Marked NEVER_INLINE, since it should never be perf-sensitive


2020-01-16  Sam Weinig  <weinig@apple.com>

        Platform.h is out of control Part 6: Split USE_* macro definitions out of Platform.h and into a new PlatformUse.h
        https://bugs.webkit.org/show_bug.cgi?id=206354

        Reviewed by Dan Bernstein.

        As a another step towards cleaning up Platform.h, split out all the legacy platform
        macros into their own file.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        Add new file.

        * wtf/Platform.h: In addition to removing all the USE_* macros, consolidate
        all the sub-includes at the top.

        * wtf/PlatformEnable.h: Moved ASSERT_ENABLED here from Platform.h, 
        as it makes more sense here. Eventually should be renamed ro ENABLE_ASSERT 
        for consistency.

        * wtf/PlatformUse.h: Copied from Source/WTF/wtf/Platform.h.

2020-01-16  Per Arne Vollan  <pvollan@apple.com>

        [Win] Fix AppleWin build
        https://bugs.webkit.org/show_bug.cgi?id=206299

        Reviewed by Brent Fulgham.

        Build internal builds with VS2019.

        * WTF.vcxproj/WTF.proj:

2020-01-15  Sam Weinig  <weinig@apple.com>

        Platform.h is out of control Part 5: Split HAVE_* macro definitions out of Platform.h and into a new PlatformHave.h
        https://bugs.webkit.org/show_bug.cgi?id=206307

        Reviewed by Anders Carlsson.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Platform.h:
        * wtf/PlatformHave.h: Copied from Source/WTF/wtf/Platform.h.

2020-01-15  Keith Miller  <keith_miller@apple.com>

        Revert bytecode checkpoints since it breaks watch
        https://bugs.webkit.org/show_bug.cgi?id=206301

        Unreviewed, revert.

2020-01-14  Sam Weinig  <weinig@apple.com>

        Platform.h is out of control Part 4: Split PLATFORM_* macro definitions out of Platform.h and into a new PlatformLegacy.h
        https://bugs.webkit.org/show_bug.cgi?id=206272

        Reviewed by Anders Carlsson.

        As a another step towards cleaning up Platform.h, split out all the legacy platform
        macros into their own file.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Platform.h:
        * wtf/PlatformLegacy.h: Copied from Source/WTF/wtf/Platform.h.

2020-01-14  Sam Weinig  <weinig@apple.com>

        Plaform.h helper files should have a consistent naming scheme
        https://bugs.webkit.org/show_bug.cgi?id=206240

        Reviewed by Dean Jackson.

        Rename Plaform.h helper files to use the prefix "Platform" consistently.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/CPU.h: Removed.
        * wtf/FeatureDefines.h: Removed.
        * wtf/OS.h: Removed.
        * wtf/Platform.h:
        * wtf/PlatformCPU.h: Copied from Source/WTF/wtf/CPU.h.
        * wtf/PlatformEnable.h: Copied from Source/WTF/wtf/FeatureDefines.h.
        * wtf/PlatformOS.h: Copied from Source/WTF/wtf/OS.h.

2020-01-14  Myles C. Maxfield  <mmaxfield@apple.com>

        [Cocoa] Glyph lookup should be language-sensitive (specifically between Yiddish and Hebrew)
        https://bugs.webkit.org/show_bug.cgi?id=77568
        <rdar://problem/14649193>

        Reviewed by Simon Fraser.

        * wtf/Platform.h:

2020-01-13  Darin Adler  <darin@apple.com>

        Use even more "shortest form" formatting, and less "fixed precision" and "fixed width"
        https://bugs.webkit.org/show_bug.cgi?id=198918

        Reviewed by Sam Weinig.

        * wtf/Logger.h:
        (WTF::LogArgument::toString): Log floating point numbers as shortest form instead of fixed precision.

        * wtf/MediaTime.cpp:
        (WTF::MediaTime::toString const): Convert time to string as shortest form instead of fixed precision.
        Also use multiple-argument append for great simplicity and clarity.

2020-01-14  Alicia Boya García  <aboya@igalia.com>

        [WTF] Make MediaTime constructor constexpr
        https://bugs.webkit.org/show_bug.cgi?id=206036

        Reviewed by Adrian Perez de Castro.

        https://bugs.webkit.org/show_bug.cgi?id=205723 allowed to declare
        MediaTime variables as static inside functions without needing a
        global destructor.

        It did not eliminate the call to the MediaTime constructor on runtime
        though. This wasn't a problem for static variables inside functions,
        as the compiler adds a guard variable to call the constructor the
        first time the function is called.

        On the other hand, for variables defined outside of the scope of the
        function, for them to be initialized the MediaTime constructor would
        have to be called at runtime from a global constructor, something
        we're trying to avoid and which generates an error in clang.

        But again, MediaTime is a simple class with only integral values, we
        shouldn't need a runtime function call to initialize it!

        This patch makes the MediaTime constructor constexpr so that we don't
        need runtime initialization for static MediaTime variables. This
        allows us to declare them outside functions and enables the compiler
        to generate code without guard variables when static MediaTime
        variables are declared inside functions.

        A test has been added accessing a global const static MediaTime. The
        build should not produce any error stating the need for a global
        constructor.

        * wtf/MediaTime.cpp:
        * wtf/MediaTime.h:
        (WTF::MediaTime::MediaTime):

2020-01-14  David Kilzer  <ddkilzer@apple.com>

        Enable -Wconditional-uninitialized in bmalloc, WTF, JavaScriptCore
        <https://webkit.org/b/206190>
        <rdar://problem/58540387>

        Reviewed by Mark Lam.

        * Configurations/Base.xcconfig:
        (WARNING_CFLAGS): Add -Wconditional-uninitialized.

2020-01-13  Sam Weinig  <weinig@apple.com>

        Platform.h is out of control Part 3: Move all ENABLE_* macros definitions in FeatureDefines.h
        https://bugs.webkit.org/show_bug.cgi?id=206139

        Reviewed by Anders Carlsson.

        - Moves all remaining ENABLE_* defines out of Platform.h and into FeatureDefines.h
        - Moves most, USE_UDIS86 and USE_ARM64_DISASSEMBLER are tangled up in the JIT definitions
          still, HAVE_* and USE_* defines out of FeatureDefines.h and into Platform.h
        - Where straigthforward, convert macro definitions into a canonical 3 line entry of the 
          form:
          
              #if !defined(MACRO_NAME) && (<CONDITIONS HERE>)
              #define MACRO_NAME 1
              #endif

          There is rarely (if ever) a resone to undefine or define one of these platform related
          macros to 0 as the usage macros (e.g. HAVE(...), ENABLE(...), etc.) handle undefined as 0.
        - Added a guard so that FeatureDefines.h can't be included directly, and must be included via
          Platform.h. This is necessary as it depends heavily on macros defined in Platform.h
        - Added numerous FIXMEs detailing follow up cleaning.

        * wtf/FeatureDefines.h:
        * wtf/Platform.h:

2020-01-12  Sam Weinig  <weinig@apple.com>

        Platform.h is out of control Part 2: Split WTF_OS_* macro definitions out of Platform.h and into a new OS.h
        https://bugs.webkit.org/show_bug.cgi?id=206138

        Reviewed by Anders Carlsson.

        As a another step towards cleaning up Platform.h, split out OS related
        macros into their own file.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/OS.h: Copied from Source/WTF/wtf/Platform.h.
        * wtf/Platform.h:

2020-01-11  Myles C. Maxfield  <mmaxfield@apple.com>

        REGRESSION(r185816): In the Hong Kong locale, navigator.language reports it's in the Taiwan locale
        https://bugs.webkit.org/show_bug.cgi?id=200043

        Unreviewed.

        Fix build.

        * wtf/cocoa/LanguageCocoa.mm:
        (WTF::canMinimizeLanguages):

2020-01-11  Myles C. Maxfield  <mmaxfield@apple.com>

        REGRESSION(r185816): In the Hong Kong locale, navigator.language reports it's in the Taiwan locale
        https://bugs.webkit.org/show_bug.cgi?id=200043

        Unreviewed.

        Addressing additional review comments.

        * wtf/cocoa/LanguageCocoa.mm:
        (WTF::canMinimizeLanguages):

2020-01-11  Myles C. Maxfield  <mmaxfield@apple.com>

        Fix internal Apple builds after r254389
        https://bugs.webkit.org/show_bug.cgi?id=206135

        Rubber stamped by Zalan Bujtas.

        * wtf/spi/cocoa/NSLocaleSPI.h:

2020-01-11  Sam Weinig  <weinig@apple.com>

        Platform.h is out of control Part 1: Split WTF_CPU_* macro definitions out of Platform.h and into a new CPU.h
        https://bugs.webkit.org/show_bug.cgi?id=206124

        Reviewed by Anders Carlsson.

        As a step towards cleaning up Platform.h, split out CPU related
        macros into their own file.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/CPU.h: Copied from Source/WTF/wtf/Platform.h.
        * wtf/Platform.h:

2020-01-10  Dean Jackson  <dino@apple.com>

        [WebGL] Clarify USE_OPENGL_ES_3
        https://bugs.webkit.org/show_bug.cgi?id=206081
        <rdar://problem/58486798>

        Reviewed by Simon Fraser.

        Make it clear that USE_ANGLE | USE_OPENGL | USE_OPENGL_ES are exclusive,
        and that the availability of OpenGL ES 3 is a separate query.

        * wtf/Platform.h:

2020-01-11  Yusuke Suzuki  <ysuzuki@apple.com>

        Unreviewed, fix RunLoopGeneric's RunLoop::cycle

        * wtf/generic/RunLoopGeneric.cpp:
        (WTF::RunLoop::cycle):

2020-01-10  Myles C. Maxfield  <mmaxfield@apple.com>

        REGRESSION(r185816): In the Hong Kong locale, navigator.language reports it's in the Taiwan locale
        https://bugs.webkit.org/show_bug.cgi?id=200043
        <rdar://problem/44119496>

        Reviewed by Dean Jackson.

        We ask the system for the current locale using CFLocaleCopyPreferredLanguages(), and then round-trip
        it through CFBundleGetLocalizationInfoForLocalization() / CFBundleCopyLocalizationForLocalizationInfo().
        This was to work around the fact that CFLocaleCopyPreferredLanguages() previously didn't report BCP47
        language codes. However, that round-tripping was introducing errors, such as "zh-Hant-HK" was getting
        turned into "zh-Hant-TW" which is clearly wrong. The CFBundle functions were never supposed to be used
        in this way.

        Instead, we can use CFLocaleCreateCanonicalLanguageIdentifierFromString() which is intended to
        canonicalize locale identifiers, and does return BCP47 language codes. However, this function preserves
        more fingerprinting entropy than the old code path, so we pass the input through new NSLocale SPI to
        minimize the entropy revealed.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Language.h:
        * wtf/Platform.h:
        * wtf/PlatformMac.cmake:
        * wtf/cf/LanguageCF.cpp:
        (WTF::httpStyleLanguageCode):
        (WTF::platformUserPreferredLanguages):
        * wtf/cocoa/LanguageCocoa.mm: Added.
        (WTF::minimizedLanguagesFromLanguages):
        * wtf/spi/cocoa/NSLocaleSPI.h: Added.

2020-01-10  Simon Fraser  <simon.fraser@apple.com>

        Introduce ENABLE_META_VIEWPORT and use it in some WK2 code
        https://bugs.webkit.org/show_bug.cgi?id=206091

        Reviewed by Tim Horton.

        Define ENABLE_META_VIEWPORT for iOS.

        * wtf/FeatureDefines.h:

2020-01-09  Tim Horton  <timothy_horton@apple.com>

        Adopt TARGET_OS_MACCATALYST in more places
        https://bugs.webkit.org/show_bug.cgi?id=206040
        <rdar://problem/57127108>

        Reviewed by Simon Fraser.

        * wtf/Platform.h:

2020-01-09  Simon Fraser  <simon.fraser@apple.com>

        Add ENABLE_UI_SIDE_COMPOSITING and use it in a few places
        https://bugs.webkit.org/show_bug.cgi?id=205982

        Reviewed by Jon Lee.
        
        Add a #define ENABLE_UI_SIDE_COMPOSITING for Cocoa platforms. Minor comment cleanup, and
        move the duplicate ENABLE_ASYNC_SCROLLING from iOS and macOS sections into the Cocoa section.

        * wtf/FeatureDefines.h:

2020-01-08  Yusuke Suzuki  <ysuzuki@apple.com>

        Reduce binary size by purging C++ type information in Objective-C fields and parameters
        https://bugs.webkit.org/show_bug.cgi?id=205905

        Reviewed by Saam Barati.

        Objective-C has reflection mechanisms. This means that fields, methods, and their types
        need to hold its string representations in binary even if we are using release build.
        While typical Objective-C class does not have large size of type names, C++ struct / class
        has very large one, and putting them in Objective-C method names, parameter types, or fields
        makes binary size very large.

        Interesting thing is that type information is gathered when parameter is a C++ pointer, reference,
        or value. And it gathers one-level deep information from this pointer etc. This means that, if
        we use RefPtr<T>, collected type information is the one of RefPtr, not one of T. So it becomes significantly
        smaller.

        This patch introduces NakedRef<T>. This is similar to Ref while it does not have any ownership. So it
        is just a wrapper around T&. We already have NakedPtr<T>. And use NakedRef<T> / NakedPtr<T> instead
        of T& and T* if,

            1. T is C++ class.
            2. T* / T& is in Objective-C fields or parameter types (including a return type).

        Then, these type information is one of NakedRef<T> / NakedPtr<T> instead of T, and we can reduce binary size.

        This patch saves 600~KB in binary size.

        Note the following things.

        1. If we use `__attribute__((objc_direct))`, `__attribute__((objc_direct_members))`, possibly, we can completely remove these
           metadata without using NakedRef / NakedPtr[1]. However, this is not available for our supporting platforms now (including
           pre-Catalina OSes). This NakedRef / NakedPtr technique can reduce binary without waiting for it.
        2. Reverting NakedRef / NakedPtr to usual reference / pointer is fairly easy since it is well typed. Once `__attribute__((objc_direct))`
           becomes available in our platforms, we can consider it. But using NakedRef / NakedPtr is harmless.

        [1]: https://github.com/llvm/llvm-project/commit/d4e1ba3fa9dfec2613bdcc7db0b58dea490c56b1

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/NakedRef.h: Added.
        (WTF::NakedRef::NakedRef):
        (WTF::NakedRef::operator-> const):
        (WTF::NakedRef::get const):
        (WTF::NakedRef::operator T& const):
        (WTF::NakedRef::operator! const):
        (WTF::=):
        (WTF::NakedRef<T>::swap):
        (WTF::swap):

2020-01-08  Alicia Boya García  <aboya@igalia.com>

        [WTF] Allow MediaTime static constants
        https://bugs.webkit.org/show_bug.cgi?id=205723

        Reviewed by Darin Adler.

        Despite all its convenience methods, at its core MediaTime is a rather
        trivial class with only integral members. Despite this, since it had a
        destructor declared, this made the class non-trivially destructible
        even if the implementation was empty, and therefore clang did not
        allow to use it for static variables unless done in form of a pointer.

        By removing the destructor this restriction is lifted and we don't
        need heap allocations for static MediaTime objects.

        Previous usages of heap allocation for static MediaTime objects have
        been rewritten to take advantage of this. Test coverage is provided by
        successful compilation without [-Werror,-Wexit-time-destructors]
        errors and existing tests.

        * wtf/MediaTime.cpp:
        (WTF::MediaTime::zeroTime):
        (WTF::MediaTime::invalidTime):
        (WTF::MediaTime::positiveInfiniteTime):
        (WTF::MediaTime::negativeInfiniteTime):
        (WTF::MediaTime::indefiniteTime):
        (WTF::MediaTime::~MediaTime): Deleted.
        * wtf/MediaTime.h:

2020-01-07  Said Abou-Hallawa  <sabouhallawa@apple.com>

        Implement css3-images image-orientation
        https://bugs.webkit.org/show_bug.cgi?id=89052

        Reviewed by Simon Fraser.

        Remove the ENABLE_CSS_IMAGE_ORIENTATION feature flag.

        * wtf/FeatureDefines.h:

2020-01-07  Simon Fraser  <simon.fraser@apple.com>

        Add some more Animations logging
        https://bugs.webkit.org/show_bug.cgi?id=205890

        Reviewed by Dean Jackson.

        Make Seconds TextStream-loggable, and make Markable<> loggable.

        * wtf/Seconds.cpp:
        (WTF::operator<<):
        * wtf/Seconds.h:
        * wtf/text/TextStream.h:
        (WTF::operator<<):

2020-01-07  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK][WPE] Add API to set purpose and hints of active editable element to input methods
        https://bugs.webkit.org/show_bug.cgi?id=205605

        Reviewed by Žan Doberšek.

        Split ENABLE_IOS_AUTOCORRECT_AND_AUTOCAPITALIZE and remove the IOS prefix.

        * wtf/FeatureDefines.h:

2020-01-06  Don Olmstead  <don.olmstead@sony.com>

        Rename GraphicsContext3D to GraphicsContextGL
        https://bugs.webkit.org/show_bug.cgi?id=205778
        <rdar://problem/58327597>

        Reviewed by Ross Kirsling.

        Define USE_OPENGL_3 for Mac and USE_OPENGL_ES_3 for iOS. Use CMake config for
        Windows and WebGL.

        * wtf/Platform.h:

2020-01-06  Mark Lam  <mark.lam@apple.com>

        Convert ASSERT_DISABLED to ASSERT_ENABLED, and fix some tests of NDEBUG that should actually test for ASSERT_ENABLED.
        https://bugs.webkit.org/show_bug.cgi?id=205776

        Reviewed by Saam Barati.

        This patch did the following changes:

        1. Replaced ASSERT_DISABLED with ASSERT_ENABLED.  This change does away
           with the need for the double negative !ASSERT_DISABLED test that is commonly
           used all over the code, thereby improving code readability.

           In Assertions.h, there is also BACKTRACE_DISABLED, ASSERT_MSG_DISABLED,
           ASSERT_ARG_DISABLED, FATAL_DISABLED, ERROR_DISABLED, LOG_DISABLED, and
           RELEASE_LOG_DISABLED.  We should replace those with ..._ENABLED equivalents
           as well.  We'll do that in another patch.  For now, they are left as is to
           minimize the size of this patch.
           See https://bugs.webkit.org/show_bug.cgi?id=205780.

        2. Fixed some code was guarded with "#ifndef NDEBUG" that should actually be
           guarded by "#if ASSERT_ENABLED" instead.

        3. In cases where the change is minimal, we move some code around so that we can
           test for "#if ASSERT_ENABLED" instead of "#if !ASSERT_ENABLED".

        * wtf/Assertions.h:
        * wtf/AutomaticThread.cpp:
        (WTF::AutomaticThread::start):
        * wtf/BitVector.h:
        * wtf/BlockObjCExceptions.mm:
        (ReportBlockedObjCException):
        * wtf/BloomFilter.h:
        * wtf/CallbackAggregator.h:
        (WTF::CallbackAggregator::CallbackAggregator):
        * wtf/CheckedArithmetic.h:
        (WTF::observesOverflow<AssertNoOverflow>):
        * wtf/CheckedBoolean.h:
        (CheckedBoolean::CheckedBoolean):
        (CheckedBoolean::operator bool):
        * wtf/CompletionHandler.h:
        (WTF::CompletionHandler<Out):
        * wtf/DateMath.cpp:
        (WTF::initializeDates):
        * wtf/Gigacage.cpp:
        (Gigacage::tryAllocateZeroedVirtualPages):
        * wtf/HashTable.h:
        (WTF::KeyTraits>::checkKey):
        (WTF::KeyTraits>::checkTableConsistencyExceptSize const):
        * wtf/LoggerHelper.h:
        * wtf/NaturalLoops.h:
        (WTF::NaturalLoops::headerOf const):
        * wtf/NeverDestroyed.h:
        (WTF::LazyNeverDestroyed::construct):
        * wtf/OptionSet.h:
        (WTF::OptionSet::OptionSet):
        * wtf/Platform.h:
        * wtf/PtrTag.h:
        * wtf/RefCounted.h:
        (WTF::RefCountedBase::disableThreadingChecks):
        (WTF::RefCountedBase::enableThreadingChecksGlobally):
        (WTF::RefCountedBase::RefCountedBase):
        (WTF::RefCountedBase::applyRefDerefThreadingCheck const):
        * wtf/SingleRootGraph.h:
        (WTF::SingleRootGraph::assertIsConsistent const):
        * wtf/SizeLimits.cpp:
        * wtf/StackBounds.h:
        (WTF::StackBounds::checkConsistency const):
        * wtf/URLParser.cpp:
        (WTF::URLParser::URLParser):
        (WTF::URLParser::domainToASCII):
        * wtf/ValueCheck.h:
        * wtf/Vector.h:
        (WTF::Malloc>::checkConsistency):
        * wtf/WeakHashSet.h:
        * wtf/WeakPtr.h:
        (WTF::WeakPtrImpl::WeakPtrImpl):
        (WTF::WeakPtrFactory::WeakPtrFactory):
        * wtf/text/AtomStringImpl.cpp:
        * wtf/text/AtomStringImpl.h:
        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::reifyString const):
        * wtf/text/StringBuilder.h:
        * wtf/text/StringCommon.h:
        (WTF::hasPrefixWithLettersIgnoringASCIICaseCommon):
        * wtf/text/StringHasher.h:
        (WTF::StringHasher::addCharacters):
        * wtf/text/StringImpl.h:
        * wtf/text/SymbolImpl.h:
        * wtf/text/UniquedStringImpl.h:

2020-01-05  Dean Jackson  <dino@apple.com>

        Rename GraphicsContext3D to GraphicsContextGL
        https://bugs.webkit.org/show_bug.cgi?id=205778
        <rdar://problem/58327597>

        Reviewed by Sam Weinig.

        Rename all the GraphicsContext3D things to GraphicsContextGL
        (includes Extensions3D and GRAPHICS_CONTEXT_3D).

        GraphicsContext3DBase now becomes GraphicsContextGL.
        GraphicsContext3D is now GraphicsContextGLOpenGL (since it represents
        the OpenGL implementation of the API).

        * wtf/FeatureDefines.h:
        * wtf/Platform.h:

2020-01-05  Sam Weinig  <weinig@apple.com>

        Further simplify StringBuilder usage by standardizing hex formating to a single hex() function
        https://bugs.webkit.org/show_bug.cgi?id=205759

        Reviewed by Dean Jackson.

        Removes appendByteAsHex, appendUnsignedAsHex and appendUnsignedAsHexFixedSize with the
        following mappings:

            appendByteAsHex(value, builder, case) 
              -> builder.append(hex(static_cast<unsigned char>(value), 2, case))
            appendUnsignedAsHex(value, builder, case) 
              -> builder.append(hex(value, case))
            appendUnsignedAsHexFixedSize(value, builder, size, case)
              -> builder.append(hex(value, size, case))
        
        Adds new API test for HexNumber.cpp

        * wtf/HexNumber.h:
        (WTF::appendByteAsHex): Deleted.
        (WTF::appendUnsignedAsHex): Deleted.
        (WTF::appendUnsignedAsHexFixedSize): Deleted.
        Remove now unused helper functions.
        
        * wtf/FileSystem.cpp:
        (WTF::FileSystemImpl::encodeForFileName):
        Replace appendByteAsHex with direct use of hex(x, 2). The static_cast is needed
        since there was an implicit down cast when appendByteAsHex was used.
 
        * wtf/Logger.cpp:
        (WTF::Logger::LogSiteIdentifier::toString const):
        (WTF::>::toString):
        * wtf/UUID.cpp:
        (WTF::createCanonicalUUIDString):
        Replace appendUnsignedAsHex/appendUnsignedAsHexFixedSize with hex(). Use makeString() 
        rather StringBuilder to simplify things further.

        * wtf/text/WTFString.cpp:
        (asciiDebug):
        Replace appendUnsignedAsHexFixedSize with append(hex()).

2020-01-05  Ross Kirsling  <ross.kirsling@sony.com>

        JavaScript: Invalid date parse for ISO 8601 strings when no timezone given
        https://bugs.webkit.org/show_bug.cgi?id=89071

        Reviewed by Darin Adler.

        * wtf/DateMath.cpp:
        (WTF::parseES5TimePortion):
        (WTF::parseES5DateFromNullTerminatedCharacters):
        * wtf/DateMath.h:
        Add an out param to tell JSC whether we still need to do a local time adjustment.

2020-01-03  Dean Jackson  <dino@apple.com>

        [WebGL] Enable ANGLE by default for Cocoa platforms (except simulator)
        https://bugs.webkit.org/show_bug.cgi?id=205483
        <rdar://problem/58097701>

        Reverting this from trunk (was r253926) due to the number of
        flakey tests and failures.

        * wtf/Platform.h:

2020-01-03  Simon Fraser  <simon.fraser@apple.com>

        Add some shared schemes to the WebKit.xcworkspace
        https://bugs.webkit.org/show_bug.cgi?id=205698

        Reviewed by Tim Horton.

        Make WebKit.xcworkspace show the following schemes by default:
            All Source
            All Tools
            WTF
            JavaScriptCore
            WebCore
            WebKit
            WebKitLegacy
            DumpRenderTree
            WebKitTestRunner
            TestWebKitAPI
            MiniBrowser
            MobileMiniBrowser.
            
        Also remove the MobileMiniBrowserUITests scheme.

        * WTF.xcodeproj/xcshareddata/xcschemes/WTF.xcscheme: Copied from Tools/MobileMiniBrowser/MobileMiniBrowser.xcodeproj/xcshareddata/xcschemes/MobileMiniBrowserUITests.xcscheme.

2020-01-02  Yusuke Suzuki  <ysuzuki@apple.com> and Simon Fraser  <simon.fraser@apple.com>

        Experiment: create lots of different malloc zones for easier accounting of memory use
        https://bugs.webkit.org/show_bug.cgi?id=186422

        Reviewed by Saam Barati.

        This patch introduces ENABLE(MALLOC_HEAP_BREAKDOWN). If this is enabled, we allocate malloc_zone per malloc kind.
        This offers the way to investigate the usage of memory per kind by using vmmap, like the following.

            VIRTUAL   RESIDENT      DIRTY    SWAPPED ALLOCATION      BYTES DIRTY+SWAP          REGION
            MALLOC ZONE                                                      SIZE       SIZE       SIZE       SIZE      COUNT  ALLOCATED  FRAG SIZE  % FRAG   COUNT
            ===========                                                   =======  =========  =========  =========  =========  =========  =========  ======  ======
            StringImpl_0x116efd000                                         188.0M      69.3M      30.9M         0K     139456      18.0M      12.9M     42%      34
            DefaultMallocZone_0x10f487000                                  176.0M      53.9M      14.1M         0K     115956      9955K      4497K     32%      22
            Vector_0x116eff000                                             162.0M      56.3M      55.3M         0K     140715      17.3M      37.9M     69%      36
            MetadataTable_0x11843b000                                      152.0M      17.5M      17.5M         0K      14200      2353K      15.2M     87%      26
            WebKit Using System Malloc_0x114cbe000                         150.0M      31.6M      21.8M         0K      87422      16.7M      5278K     24%      23
            InstructionStream_0x118469000                                  150.0M      5764K      5764K         0K      14470      4688K      1076K     19%      24
            AssemblerData_0x117ee6000                                      150.0M      1928K      1928K         0K          1         16      1928K    100%      24

        To achieve this goal without making very large change, we put a template type in various containers.
        For example, Vector will take Malloc parameter (the default one is FastMalloc allocator). If ENABLE(MALLOC_HEAP_BREAKDOWN) is enabled, we change this to
        specific VectorMalloc allocator, and vmmap can show memory usage of this allocator. This patch also supports malloc_zone per IsoHeap. So we can see memory
        allocation per IsoHeap in vmmap.

        To use this feature, we need to flip two compile time flags, ENABLE(MALLOC_HEAP_BREAKDOWN) in WTF and BENABLE_MALLOC_HEAP_BREAKDOWN in bmalloc.
        And use `vmmap $PID` to dump malloc zones. To allocate objects of a class with a specific malloc-zone, use WTF_MAKE_FAST_ALLOCATED_WITH_HEAP_IDENTIFIER(HeapIdentifier) for the class,
        and define allocator by DECLARE_ALLOCATOR_WITH_HEAP_IDENTIFIER(HeapIdentifier) in a header and DEFINE_ALLOCATOR_WITH_HEAP_IDENTIFIER(HeapIdentifier) in a cpp file.

        This patch also introduce callstack collector for malloc. Vector, HashMap etc. are used to allocate various things, but the above malloc_zone feature only tells thing like "Vector
        takes XXX MB memory". But what we want to know in this case is what Vector is consuming memory. We collect StackShot for each malloc call, and combine these information to tell
        which callsite is consuming much memory, which tell us that what Vector is consuming memory.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Bag.cpp: Copied from Source/JavaScriptCore/parser/SourceProviderCache.cpp.
        * wtf/Bag.h:
        (WTF::Private::BagNode::BagNode): Deleted.
        * wtf/BitVector.cpp:
        (WTF::BitVector::OutOfLineBits::create):
        (WTF::BitVector::OutOfLineBits::destroy):
        * wtf/CMakeLists.txt:
        * wtf/ConcurrentBuffer.cpp: Copied from Source/JavaScriptCore/parser/SourceProviderCache.cpp.
        * wtf/ConcurrentBuffer.h:
        * wtf/DebugHeap.cpp: Copied from Source/JavaScriptCore/runtime/CachePayload.cpp.
        (WTF::DebugHeap::DebugHeap):
        (WTF::DebugHeap::malloc):
        (WTF::DebugHeap::calloc):
        (WTF::DebugHeap::memalign):
        (WTF::DebugHeap::realloc):
        (WTF::DebugHeap::free):
        * wtf/DebugHeap.h: Added.
        * wtf/FastBitVector.cpp:
        (WTF::FastBitVectorWordOwner::setEqualsSlow):
        (WTF::FastBitVectorWordOwner::resizeSlow):
        * wtf/FastBitVector.h:
        (WTF::FastBitVectorWordOwner::~FastBitVectorWordOwner):
        * wtf/FastMalloc.cpp:
        (WTF::fastMallocDumpMallocStats):
        (WTF::AvoidRecordingScope::AvoidRecordingScope):
        (WTF::AvoidRecordingScope::~AvoidRecordingScope):
        (WTF::MallocCallTracker::MallocSiteData::MallocSiteData):
        (WTF::MallocCallTracker::singleton):
        (WTF::MallocCallTracker::MallocCallTracker):
        (WTF::MallocCallTracker::recordMalloc):
        (WTF::MallocCallTracker::recordRealloc):
        (WTF::MallocCallTracker::recordFree):
        (WTF::MallocCallTracker::dumpStats):
        (WTF::fastMalloc):
        (WTF::fastRealloc):
        (WTF::fastFree):
        (WTF::fastAlignedMalloc):
        (WTF::tryFastAlignedMalloc):
        (WTF::fastAlignedFree):
        * wtf/FastMalloc.h:
        (WTF::FastMalloc::zeroedMalloc):
        (WTF::FastMalloc::tryZeroedMalloc):
        * wtf/Forward.h:
        * wtf/HashTable.cpp:
        * wtf/HashTable.h:
        (WTF::KeyTraits>::allocateTable):
        (WTF::KeyTraits>::deallocateTable):
        (WTF::KeyTraits>::rehash):
        * wtf/MallocPtr.h:
        (WTF::MallocPtr::MallocPtr):
        (WTF::MallocPtr::malloc):
        (WTF::MallocPtr::zeroedMalloc):
        (WTF::MallocPtr::tryMalloc):
        (WTF::MallocPtr::tryZeroedMalloc):
        (WTF::adoptMallocPtr):
        * wtf/MetaAllocator.cpp:
        (WTF::MetaAllocator::allocFreeSpaceNode):
        (WTF::MetaAllocator::freeFreeSpaceNode):
        * wtf/MetaAllocatorHandle.h:
        * wtf/Platform.h:
        * wtf/RefCountedArray.cpp: Copied from Source/JavaScriptCore/bytecode/InstructionStream.cpp.
        * wtf/RefCountedArray.h:
        (WTF::RefCountedArray::RefCountedArray):
        (WTF::RefCountedArray::~RefCountedArray):
        (WTF::RefCountedArray::assign):
        * wtf/SegmentedVector.cpp: Copied from Source/JavaScriptCore/bytecode/InstructionStream.cpp.
        * wtf/SegmentedVector.h:
        * wtf/SmallPtrSet.cpp: Copied from Source/JavaScriptCore/bytecode/InstructionStream.cpp.
        * wtf/SmallPtrSet.h:
        (WTF::SmallPtrSet::~SmallPtrSet):
        (WTF::SmallPtrSet::grow):
        * wtf/UniqueArray.cpp: Copied from Source/JavaScriptCore/bytecode/InstructionStream.cpp.
        * wtf/UniqueArray.h:
        (WTF::UniqueArrayFree::operator() const):
        (WTF::UniqueArrayFree<T::operator() const):
        * wtf/Vector.cpp: Copied from Source/JavaScriptCore/bytecode/InstructionStream.cpp.
        * wtf/Vector.h:
        (WTF::VectorBufferBase::allocateBuffer):
        (WTF::VectorBufferBase::tryAllocateBuffer):
        (WTF::VectorBufferBase::reallocateBuffer):
        (WTF::VectorBufferBase::deallocateBuffer):
        (WTF::VectorBufferBase::releaseBuffer):
        (WTF::VectorBuffer::releaseBuffer):
        (WTF::Vector::swap):
        (WTF::Malloc>::Vector):
        (WTF::=):
        (WTF::Malloc>::contains const):
        (WTF::Malloc>::findMatching const):
        (WTF::Malloc>::find const):
        (WTF::Malloc>::reverseFind const):
        (WTF::Malloc>::appendIfNotContains):
        (WTF::Malloc>::fill):
        (WTF::Malloc>::appendRange):
        (WTF::Malloc>::expandCapacity):
        (WTF::Malloc>::tryExpandCapacity):
        (WTF::Malloc>::resize):
        (WTF::Malloc>::resizeToFit):
        (WTF::Malloc>::shrink):
        (WTF::Malloc>::grow):
        (WTF::Malloc>::asanSetInitialBufferSizeTo):
        (WTF::Malloc>::asanSetBufferSizeToFullCapacity):
        (WTF::Malloc>::asanBufferSizeWillChangeTo):
        (WTF::Malloc>::reserveCapacity):
        (WTF::Malloc>::tryReserveCapacity):
        (WTF::Malloc>::reserveInitialCapacity):
        (WTF::Malloc>::shrinkCapacity):
        (WTF::Malloc>::append):
        (WTF::Malloc>::tryAppend):
        (WTF::Malloc>::constructAndAppend):
        (WTF::Malloc>::tryConstructAndAppend):
        (WTF::Malloc>::appendSlowCase):
        (WTF::Malloc>::constructAndAppendSlowCase):
        (WTF::Malloc>::tryConstructAndAppendSlowCase):
        (WTF::Malloc>::uncheckedAppend):
        (WTF::Malloc>::uncheckedConstructAndAppend):
        (WTF::Malloc>::appendVector):
        (WTF::Malloc>::insert):
        (WTF::Malloc>::insertVector):
        (WTF::Malloc>::remove):
        (WTF::Malloc>::removeFirst):
        (WTF::Malloc>::removeFirstMatching):
        (WTF::Malloc>::removeAll):
        (WTF::Malloc>::removeAllMatching):
        (WTF::Malloc>::reverse):
        (WTF::Malloc>::map const):
        (WTF::Malloc>::releaseBuffer):
        (WTF::Malloc>::checkConsistency):
        (WTF::swap):
        (WTF::operator==):
        (WTF::operator!=):
        (WTF::Malloc>::isolatedCopy const):
        (WTF::removeRepeatedElements):
        (WTF::minCapacity>::Vector): Deleted.
        (WTF::minCapacity>::contains const): Deleted.
        (WTF::minCapacity>::findMatching const): Deleted.
        (WTF::minCapacity>::find const): Deleted.
        (WTF::minCapacity>::reverseFind const): Deleted.
        (WTF::minCapacity>::appendIfNotContains): Deleted.
        (WTF::minCapacity>::fill): Deleted.
        (WTF::minCapacity>::appendRange): Deleted.
        (WTF::minCapacity>::expandCapacity): Deleted.
        (WTF::minCapacity>::tryExpandCapacity): Deleted.
        (WTF::minCapacity>::resize): Deleted.
        (WTF::minCapacity>::resizeToFit): Deleted.
        (WTF::minCapacity>::shrink): Deleted.
        (WTF::minCapacity>::grow): Deleted.
        (WTF::minCapacity>::asanSetInitialBufferSizeTo): Deleted.
        (WTF::minCapacity>::asanSetBufferSizeToFullCapacity): Deleted.
        (WTF::minCapacity>::asanBufferSizeWillChangeTo): Deleted.
        (WTF::minCapacity>::reserveCapacity): Deleted.
        (WTF::minCapacity>::tryReserveCapacity): Deleted.
        (WTF::minCapacity>::reserveInitialCapacity): Deleted.
        (WTF::minCapacity>::shrinkCapacity): Deleted.
        (WTF::minCapacity>::append): Deleted.
        (WTF::minCapacity>::tryAppend): Deleted.
        (WTF::minCapacity>::constructAndAppend): Deleted.
        (WTF::minCapacity>::tryConstructAndAppend): Deleted.
        (WTF::minCapacity>::appendSlowCase): Deleted.
        (WTF::minCapacity>::constructAndAppendSlowCase): Deleted.
        (WTF::minCapacity>::tryConstructAndAppendSlowCase): Deleted.
        (WTF::minCapacity>::uncheckedAppend): Deleted.
        (WTF::minCapacity>::uncheckedConstructAndAppend): Deleted.
        (WTF::minCapacity>::appendVector): Deleted.
        (WTF::minCapacity>::insert): Deleted.
        (WTF::minCapacity>::insertVector): Deleted.
        (WTF::minCapacity>::remove): Deleted.
        (WTF::minCapacity>::removeFirst): Deleted.
        (WTF::minCapacity>::removeFirstMatching): Deleted.
        (WTF::minCapacity>::removeAll): Deleted.
        (WTF::minCapacity>::removeAllMatching): Deleted.
        (WTF::minCapacity>::reverse): Deleted.
        (WTF::minCapacity>::map const): Deleted.
        (WTF::minCapacity>::releaseBuffer): Deleted.
        (WTF::minCapacity>::checkConsistency): Deleted.
        (WTF::minCapacity>::isolatedCopy const): Deleted.
        * wtf/text/CString.cpp:
        (WTF::CStringBuffer::createUninitialized):
        * wtf/text/CString.h:
        * wtf/text/StringBuffer.cpp: Copied from Source/JavaScriptCore/bytecode/InstructionStream.cpp.
        * wtf/text/StringBuffer.h:
        (WTF::StringBuffer::StringBuffer):
        (WTF::StringBuffer::~StringBuffer):
        (WTF::StringBuffer::resize):
        (WTF::StringBuffer::release):
        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::~StringImpl):
        (WTF::StringImpl::destroy):
        (WTF::StringImpl::createUninitializedInternalNonEmpty):
        (WTF::StringImpl::reallocateInternal):
        * wtf/text/StringImpl.h:
        (WTF::StringImpl::StringImpl):
        (WTF::StringImpl::createSubstringSharingImpl):
        (WTF::StringImpl::tryCreateUninitialized):
        (WTF::StringImpl::adopt):
        * wtf/text/cf/StringImplCF.cpp:
        (WTF::StringWrapperCFAllocator::allocate):
        (WTF::StringWrapperCFAllocator::reallocate):
        (WTF::StringWrapperCFAllocator::deallocate):

2020-01-02  Dean Jackson  <dino@apple.com>

        REGRESSION(r253926): Crash at libANGLE-shared.dylib: gl::LogMessage::~LogMessage
        https://bugs.webkit.org/show_bug.cgi?id=205690
        rdar://58279401

        Reviewed by Eric Carlson.

        Only enable ANGLE for iOS hardware while we investigate this fatal error.

        * wtf/Platform.h:

2020-01-02  Sam Weinig  <weinig@apple.com>

        Simplify StringBuilder API/align with makeString by removing appendFixed* functions and using FormatNumber struct instead
        https://bugs.webkit.org/show_bug.cgi?id=205671

        Reviewed by Alex Christensen.

        In an ongoing attempt to simplify the StringBuilder interface and unify it's functionality with makeString,
        this change removes appendFixedPrecisionNumber() and appendFixedWidthNumber(), replacing their uses
        with direct calls to append(), using a FormattedNumber object to direct it to the appropriate StringTypeAdapter.

        * wtf/text/StringBuilder.h:
        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::appendFixedPrecisionNumber): Deleted.
        (WTF::StringBuilder::appendFixedWidthNumber): Deleted.
        Remove StringBuilder::appendFixedPrecisionNumber() and StringBuilder::appendFixedWidthNumber(). The same functionality
        is available and more flexible by passing FormattedNumbers to the variadic append() function.
        
        * wtf/text/TextStream.cpp:
        (WTF::TextStream::operator<<):
        * wtf/MediaTime.cpp:
        (WTF::MediaTime::toString const):
        Replace all uses of builder.appendFixedPrecisionNumber(...) with builder.append(FormattedNumber::fixedPrecision(...))
        and builder.appendFixedWidthNumber(...) with with builder.append(FormattedNumber::fixedWidth(...))

2019-12-20  Darin Adler  <darin@apple.com>

        Tidy a bit of StringBuilder usage
        https://bugs.webkit.org/show_bug.cgi?id=205509

        Reviewed by Sam Weinig.

        * wtf/FileSystem.cpp:
        (WTF::FileSystemImpl::decodeFromFilename): Fix misleading variable name "hexDigit"
        for result of decoding "%+XXXX"; what's decoded is a character, not a hex digit.

        * wtf/HexNumber.h: Remove unused appendUnsignedAsHexFixedSize function for
        destinations other than StringBuilder. Don't need it at this time, could add
        it later if we ever decide we do.

        * wtf/text/StringBuilder.h:
        (WTF::StringBuilder::appendSubstring): Improved logic in appendSubstring so it
        will handle even absurd values for offset and length correctly, and added a
        default length of "infinity" just like in String::substring.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::convertToLowercaseWithoutLocale): Use isASCII.
        (WTF::StringImpl::convertToLowercaseWithoutLocaleStartingAtFailingIndex8Bit): Ditto.

        * wtf/text/WTFString.cpp:
        (asciiDebug): Use StringBuilder to build the string; this was the one place that
        used appendUnsignedAsHexFixedSize on something else, and there is no need.

2019-12-30  youenn fablet  <youenn@apple.com>

        Ignore URL host for schemes that are not using host information
        https://bugs.webkit.org/show_bug.cgi?id=205157
        <rdar://problem/57825963>

        Reviewed by Darin Adler.

        * wtf/URL.cpp:
        (WTF::URL::removeHostAndPort):
        * wtf/URL.h:

2019-12-25  Dean Jackson  <dino@apple.com>

        [WebGL] Enable ANGLE by default for Cocoa platforms (except simulator)
        https://bugs.webkit.org/show_bug.cgi?id=205483
        rdar://56925821

        Reviewed by Simon Fraser.

        Turn USE_ANGLE on for Cocoa, with the exception of the simulator.

        * wtf/Platform.h:

2019-12-24  Eric Carlson  <eric.carlson@apple.com>

        [Media in GPU process] Enable media player proxy logging
        https://bugs.webkit.org/show_bug.cgi?id=205557
        <rdar://problem/58160932>

        Reviewed by Youenn Fablet.

        * wtf/Logger.h:
        (WTF::Logger::willLog const): Minor optimization: don't check m_enabled unnecessarily.

2019-12-23  Keith Miller  <keith_miller@apple.com>

        DFG/FTL should be able to exit to the middle of a bytecode
        https://bugs.webkit.org/show_bug.cgi?id=205232

        Reviewed by Saam Barati.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Bitmap.h:
        (WTF::WordType>::invert):
        (WTF::WordType>::operator):
        (WTF::WordType>::operator const const):
        * wtf/CMakeLists.txt:
        * wtf/EnumClassOperatorOverloads.h: Added.
        * wtf/FastBitVector.h:
        (WTF::FastBitReference::operator bool const):
        (WTF::FastBitReference::operator|=):
        (WTF::FastBitReference::operator&=):
        (WTF::FastBitVector::fill):
        (WTF::FastBitVector::grow):
        * wtf/UnalignedAccess.h:
        (WTF::unalignedLoad):
        (WTF::unalignedStore):

2019-12-21  Antti Koivisto  <antti@apple.com>

        Move Vector HashTraits to HashTraits.h to fix GCC build
        https://bugs.webkit.org/show_bug.cgi?id=205540

        Reviewed by Zalan Bujtas.

        GCC is stricter than LLVM with partial specializations

        Error: partial specialization of struct WTF::HashTraits<WTF::Vector<U, otherCapacity, WTF::CrashOnOverflow, 16> >
        after instantiation of struct WTF::HashTraits<WTF::Vector<WTF::String> >

        * wtf/HashTraits.h:
        * wtf/VectorHash.h:

2019-12-20  Truitt Savell  <tsavell@apple.com>

        Unreviewed, rolling out r253820.

        Broke Mac testing

        Reverted changeset:

        "Invalidate only affected elements after media query
        evaluation changes"
        https://bugs.webkit.org/show_bug.cgi?id=205392
        https://trac.webkit.org/changeset/253820

2019-12-20  Antti Koivisto  <antti@apple.com>

        Invalidate only affected elements after media query evaluation changes
        https://bugs.webkit.org/show_bug.cgi?id=205392

        Reviewed by Zalan Bujtas.

        Fix GCC build error

        Error: partial specialization of ‘struct WTF::HashTraits<WTF::Vector<U, otherCapacity, WTF::CrashOnOverflow, 16> >’
               after instantiation of ‘struct WTF::HashTraits<WTF::Vector<WTF::String> >’

        * wtf/HashTraits.h:
        * wtf/VectorHash.h:

        Move to HashTraits to HashTraits.h so it gets specialized before any instantiation.

2019-12-19  Antti Koivisto  <antti@apple.com>

        Allow Vectors as hash keys
        https://bugs.webkit.org/show_bug.cgi?id=205449

        Reviewed by Geoff Garen.

        Add traits to allow Vectors of hashable types to act as hash keys.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Vector.h:
        (WTF::Vector::Vector):
        (WTF::Vector::~Vector):
        (WTF::Vector::isHashTableDeletedValue const):

        Use m_size = numeric_limits::max() as the deleted value.

        * wtf/VectorHash.h: Added.
        (WTF::VectorHash::hash):
        (WTF::VectorHash::equal):

        Add traits. Empty Vector is the empty value.

2019-12-19  Jer Noble  <jer.noble@apple.com>

        Safely iterate observers in languageDidChange()
        https://bugs.webkit.org/show_bug.cgi?id=205452
        <rdar://problem/57937765>

        Reviewed by Eric Carlson.

        Use the "copyToVector() then verify each item is still in the original
        map" pattern to safely iterate over the observerMap().

        * wtf/Language.cpp:
        (WTF::languageDidChange):

2019-12-18  Yusuke Suzuki  <ysuzuki@apple.com>

        Unreviewed, build fix after r253730
        https://bugs.webkit.org/show_bug.cgi?id=204398

        Thread::destructTLS is always required in POSIX environments

        * wtf/Threading.h:

2019-12-18  Fujii Hironori  <Hironori.Fujii@sony.com>

        [Win] Use thread_local to hold Ref<WTF::Thread> in the thread rather than using FLS
        https://bugs.webkit.org/show_bug.cgi?id=204398

        Reviewed by Yusuke Suzuki.

        Use thread_local which is faster than FLS.

        * wtf/Threading.cpp:
        (WTF::initializeThreading):
        * wtf/Threading.h:
        (WTF::Thread::current):
        * wtf/ThreadingPrimitives.h: Deleted threadSpecificKeyCreate and
        related functions which aren't used now in Windows port. Deleted
        THREAD_SPECIFIC_CALL macro which isn't used now.
        * wtf/win/ThreadingWin.cpp: Added a thread_local variable s_threadHolder.
        (WTF::Thread::ThreadHolder::~ThreadHolder): Added.
        (WTF::Thread::currentMayBeNull):
        (WTF::Thread::initializeTLS): Store a reference of Thread into s_threadHolder.
        (WTF::Thread::initializeTLSKey): Deleted.
        (WTF::Thread::destructTLS): Deleted.

2019-12-18  Ben Nham  <nham@apple.com>

        Add network loading signposts
        https://bugs.webkit.org/show_bug.cgi?id=204822
        <rdar://problem/57608824>

        Reviewed by Alex Christensen.

        This adds os_signposts related to network loads to aid in debugging networking performance
        issues. Since URLs are logged in the signposts, this capability is only enabled on Apple
        internal builds when an environment variable is set.

        * wtf/Platform.h:
        Add HAVE_OS_SIGNPOST.

2019-12-17  Myles C. Maxfield  <mmaxfield@apple.com>

        [iOS] Update to use CTFontCreateForCharactersWithLanguageAndOption()
        https://bugs.webkit.org/show_bug.cgi?id=205310

        Reviewed by Simon Fraser.

        All our bots are on the appropriate OS version.

        * wtf/Platform.h:

2019-12-17  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] 8Bit JSRopeString can contain 16Bit string in its rope
        https://bugs.webkit.org/show_bug.cgi?id=205323

        Reviewed by Mark Lam.

        * wtf/text/StringImpl.h:
        (WTF::StringImpl::copyCharacters):

2019-12-17  Tim Horton  <timothy_horton@apple.com>

        macCatalyst: Cursor should update on mouse movement and style change
        https://bugs.webkit.org/show_bug.cgi?id=205317
        <rdar://problem/46793696>

        Reviewed by Anders Carlsson.

        * wtf/FeatureDefines.h:
        Make ENABLE_CURSOR_SUPPORT true on iOS, for macCatalyst. This results
        in it being true everywhere, so remove it.

        Add a new ENABLE_CUSTOM_CURSOR_SUPPORT, indicating whether we support
        custom bitmap cursors. It covers the subset of ENABLE_CURSOR_SUPPORT
        code that we still don't support in macCatalyst.

        * wtf/Platform.h:
        Add HAVE_HISERVICES (true on macOS but not macCatalyst) and
        HAVE_NSCURSOR (true on macOS and macCatalyst but not e.g. iOS).

2019-12-16  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Remove ArrayBufferNeuteringWatchpointSet
        https://bugs.webkit.org/show_bug.cgi?id=205194

        Reviewed by Saam Barati.

        This patch adds PackedRef and PackedRefPtr. They are Ref and RefPtr, but its internal pointer is packed.
        So we can represent them in 6 bytes with 1 byte alignment.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Packed.h:
        (WTF::alignof):
        * wtf/PackedRef.h: Copied from Source/JavaScriptCore/runtime/ArrayBufferNeuteringWatchpointSet.h.
        * wtf/PackedRefPtr.h: Renamed from Source/JavaScriptCore/runtime/ArrayBufferNeuteringWatchpointSet.h.
        * wtf/RefPtr.h:
        (WTF::RefPtr::operator UnspecifiedBoolType const):
        (WTF::RefPtr::unspecifiedBoolTypeInstance const):

2019-12-13  Saam Barati  <sbarati@apple.com>

        Add a Heap::finalize function that takes WTF::Function<void()>
        https://bugs.webkit.org/show_bug.cgi?id=205211

        Reviewed by Geoffrey Garen.

        * wtf/Function.h:
        (WTF::Function<Out):

2019-12-13  Per Arne Vollan  <pvollan@apple.com>

        [iOS] Deny mach lookup access to "*.apple-extension-service" in the WebContent process
        https://bugs.webkit.org/show_bug.cgi?id=205134
        <rdar://problem/56984257>

        Reviewed by Brent Fulgham.

        Add enum value for the XPC service name filter type.

        * wtf/spi/darwin/SandboxSPI.h:

2019-12-09  Fujii Hironori  <Hironori.Fujii@sony.com>

        [MSVC] writeNumberToBufferUnsigned is unsafe for bool type
        https://bugs.webkit.org/show_bug.cgi?id=204873

        Reviewed by Darin Adler.

        MSVC reports warning for using / operator for bool type.
        > warning C4804: '/': unsafe use of type 'bool' in operation

        And, 'bool' isn't expected to be serialized as '0' or '1'. 'bool' isn't supported.

        * wtf/text/IntegerToStringConversion.h: Added a static_assert to ensure UnsignedIntegerType isn't bool.

2019-07-13  Darin Adler  <darin@apple.com>

        Streamline PODIntervalTree code and remove ValueToString
        https://bugs.webkit.org/show_bug.cgi?id=199782

        Reviewed by Anders Carlsson.

        * WTF.xcodeproj/project.pbxproj: Remove ValueToString.h.
        * wtf/CMakeLists.txt: Ditto.

        * wtf/MediaTime.cpp:
        (WTF::operator<<): Implement debug-only TextStream serialization
        based on toJSONString.
        * wtf/MediaTime.h: Ditto.

        * wtf/text/ValueToString.h: Removed.

2019-12-06  Zan Dobersek  <zdobersek@igalia.com>

        [GTK][WPE] Use bmalloc's memory footprint API for JSC heap growth management
        https://bugs.webkit.org/show_bug.cgi?id=204576

        Reviewed by Saam Barati.

        Add the new USE_BMALLOC_MEMORY_FOOTPRINT_API, enabled for the iOS-family
        ports and the Linux ports, as long as system malloc enforcement is
        disabled and bmalloc is subsequently built and used. The flag is used in
        JavaScriptCore to enable usage of bmalloc's memory footprint API for
        JSC heap growth control.

        * wtf/Platform.h:

2019-12-05  Chris Dumez  <cdumez@apple.com>

        [IPC] Fail ObjectIdentifier decoding if the decoded integer is not a valid ID
        https://bugs.webkit.org/show_bug.cgi?id=204921
        <rdar://problem/57677747>

        Reviewed by Ryosuke Niwa.

        * wtf/ObjectIdentifier.h:
        (WTF::ObjectIdentifier::decode):

2019-12-03  Sunny He  <sunny_he@apple.com>

        Enable security assertions on all ASAN builds
        https://bugs.webkit.org/show_bug.cgi?id=204802

        Reviewed by Ryosuke Niwa.

        * wtf/FeatureDefines.h:

2019-12-03  Christopher Reid  <chris.reid@sony.com>

        Regular expression hangs in Safari only
        https://bugs.webkit.org/show_bug.cgi?id=202882
        <rdar://problem/56236654>

        Reviewed by Yusuke Suzuki.

        BumpPointerPool::ensureCapacityCrossPool can cause an infinite loop
        if multiple large pools are deallocated and a new capacity does not
        fit in the deallocated pools. BumpPointerPool should try using
        more pools if the next one isn't large enough.

        * wtf/BumpPointerAllocator.h:
        (WTF::BumpPointerPool::ensureCapacityCrossPool):

2019-11-28  Fujii Hironori  <Hironori.Fujii@sony.com>

        Remove ENABLE_KEYBOARD_CODE_ATTRIBUTE and ENABLE_KEYBOARD_KEY_ATTRIBUTE macros
        https://bugs.webkit.org/show_bug.cgi?id=204666

        Reviewed by Ross Kirsling and Don Olmstead.

        * wtf/FeatureDefines.h:

2019-11-25  Fujii Hironori  <Hironori.Fujii@sony.com>

        [Win] Update KeyboardEvent as per the latest specification
        https://bugs.webkit.org/show_bug.cgi?id=202183

        Reviewed by Ross Kirsling.

        * wtf/FeatureDefines.h:

2019-11-25  Fujii Hironori  <Hironori.Fujii@sony.com>

        Add DefaultHash<OptionSet<T>> and HashTrait<OptionSet<T>> specializations
        https://bugs.webkit.org/show_bug.cgi?id=204562

        Reviewed by Daniel Bates.

        * WTF.xcodeproj/project.pbxproj: Added OptionSetHash.h
        * wtf/CMakeLists.txt: Ditto.
        * wtf/OptionSet.h: Made StorageType public, and use C++14 types.
        * wtf/OptionSetHash.h: Added.
        (WTF::DefaultHash<OptionSet<T>>::Hash::hash):
        (WTF::DefaultHash<OptionSet<T>>::Hash::equal):
        (WTF::HashTraits<OptionSet<T>>::emptyValue):
        (WTF::HashTraits<OptionSet<T>>::constructDeletedValue):
        (WTF::HashTraits<OptionSet<T>>::isDeletedValue):

2019-11-25  Carlos Garcia Campos  <cgarcia@igalia.com>

        REGRESSION(r252770): [GTK][WPE] Remote inspector no longer works if debugger is in a different kind of system
        https://bugs.webkit.org/show_bug.cgi?id=204572

        Reviewed by Žan Doberšek.

        This patch adds the following changes:

         - Use uint32_t instead of size_t to store the body size in the message header, because size_t has a different
           size in 32 and 64 bit platforms.
         - Use htonl/ntohl to write/read the body size in the header.
         - Add a flags byte to the header to include the message byte order. The sender always uses the host byter order
           and the receiver does the byte swapping if needed.

        * wtf/glib/SocketConnection.cpp:
        (WTF::messageIsByteSwapped):
        (WTF::SocketConnection::readMessage):
        (WTF::SocketConnection::sendMessage):

2019-11-25  Carlos Garcia Campos  <cgarcia@igalia.com>

        REGRESSION(r252770): [GTK][WPE] Remote inspector broken in debug builds after r252770
        https://bugs.webkit.org/show_bug.cgi?id=204569

        Reviewed by Žan Doberšek.

        We need to call relaxAdoptionRequirement() in SocketConnection constructor because we are taking a reference for
        the read monitor lambda.

        * wtf/glib/SocketConnection.cpp:
        (WTF::SocketConnection::SocketConnection):

2019-11-25  Fujii Hironori  <Hironori.Fujii@sony.com>

        Ran sort-Xcode-project-file.

        Unreviewed.

        * WTF.xcodeproj/project.pbxproj:

2019-11-23  Carlos Garcia Campos  <cgarcia@igalia.com>

        Unreviewed. Try to fix the GTK WebDriver tests in the bots after r252770

        They are failing in the bots because g_variant_new_from_data() is failing due to the given data not being
        properly aligned for the type being loaded. This is not a problem since GLib 2.60 that checks the alignment and
        reallocates the buffer in aligned memory only if needed. For previous versions we need to ensure the memory we
        pass to g_variant_new_from_data() is aligned.

        * wtf/glib/SocketConnection.cpp:
        (WTF::SocketConnection::readMessage):

2019-11-22  Brent Fulgham  <bfulgham@apple.com>

        Unreviewed FTW build fix after r252687.

        * wtf/PlatformFTW.cmake:

2019-11-22  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK][WPE] RemoteInspector: use sockets instead of DBus
        https://bugs.webkit.org/show_bug.cgi?id=204503

        Reviewed by Žan Doberšek.

        Add SocketConnection class.

        * wtf/PlatformGTK.cmake:
        * wtf/PlatformWPE.cmake:
        * wtf/glib/GSocketMonitor.cpp: Renamed from Source/WebKit/Platform/IPC/glib/GSocketMonitor.cpp.
        (WTF::GSocketMonitor::start):
        * wtf/glib/GSocketMonitor.h: Renamed from Source/WebKit/Platform/IPC/glib/GSocketMonitor.h.
        (WTF::GSocketMonitor::isActive const):
        * wtf/glib/GTypedefs.h:
        * wtf/glib/GUniquePtr.h:
        * wtf/glib/SocketConnection.cpp: Added.
        (WTF::SocketConnection::SocketConnection):
        (WTF::SocketConnection::~SocketConnection):
        (WTF::SocketConnection::read):
        (WTF::SocketConnection::readMessage):
        (WTF::SocketConnection::sendMessage):
        (WTF::SocketConnection::write):
        (WTF::SocketConnection::waitForSocketWritability):
        (WTF::SocketConnection::close):
        (WTF::SocketConnection::didClose):
        * wtf/glib/SocketConnection.h: Added.
        (WTF::SocketConnection::create):
        (WTF::SocketConnection::isClosed const):

2019-11-21  Yusuke Suzuki  <ysuzuki@apple.com>

        Unreviewed, rolling in again, regression is not caused by it
        https://bugs.webkit.org/show_bug.cgi?id=202471

        * wtf/text/StringCommon.h:
        (WTF::findCommon):

2019-11-21  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r252683 and r252721.
        https://bugs.webkit.org/show_bug.cgi?id=204475

        13% regression in JetStream2/prepack-wtb (Requested by
        yusukesuzuki on #webkit).

        Reverted changesets:

        "Implement String.prototype.replaceAll"
        https://bugs.webkit.org/show_bug.cgi?id=202471
        https://trac.webkit.org/changeset/252683

        "Unreviewed, address Darin's feedback on r252683."
        https://trac.webkit.org/changeset/252721

2019-11-21  Tuomas Karkkainen  <tuomas.webkit@apple.com>

        add ASSERT_NOT_REACHED_WITH_MESSAGE and RELEASE_ASSERT_NOT_REACHED_WITH_MESSAGE
        https://bugs.webkit.org/show_bug.cgi?id=204445

        Reviewed by Antti Koivisto.

        Add assertions that combine ASSERT_NOT_REACHED and ASSERT_WITH_MESSAGE.

        * wtf/Assertions.h:

2019-11-20  Ross Kirsling  <ross.kirsling@sony.com>

        Unreviewed, address Darin's feedback on r252683.

        * wtf/text/StringCommon.h:
        (WTF::findCommon):

2019-11-20  ChangSeok Oh  <changseok@webkit.org>

        [GTK] Add ANGLE backend to GTK port
        https://bugs.webkit.org/show_bug.cgi?id=199060

        Reviewed by Žan Doberšek.

        The GTK port uses TEXTURE_MAPPER that has a gl context for accelerated rendering,
        and ANGLE has an egl context for WebGL. We want to make both live together
        so an exception is made where TEXTURE_MAPPER is enabled.

        * wtf/Platform.h:

2019-11-20  Fujii Hironori  <Hironori.Fujii@sony.com>

        [Win] Implement WTF::ThreadSpecific in WTF::Thread
        https://bugs.webkit.org/show_bug.cgi?id=204341

        Reviewed by Brent Fulgham and Yusuke Suzuki.

        Thread::destructTLS had a tricky code to defer destroying
        WTF::Thread in TLS in order to ensure WTF::Thread is destructed
        after other ThreadSpecific are destructed, which is a part of
        cause of nasty hanging issue in the process termination (Bug 204192).

        This change implements WTF::ThreadSpecific in WTF::Thread by
        adding a new class Thread::SpecificStorage to manage TLS. Simplify
        Thread::destructTLS. Remove threadMapMutex in ThreadingWin.cpp

        * wtf/PlatformWin.cmake:
        * wtf/ThreadSpecific.h:
        (WTF::canBeGCThread>::ThreadSpecific):
        (WTF::canBeGCThread>::get):
        (WTF::canBeGCThread>::setInTLS):
        (WTF::canBeGCThread>::destroy):
        (WTF::canBeGCThread>::~ThreadSpecific): Deleted.
        * wtf/Threading.h:
        (WTF::Thread::specificStorage):
        (WTF::Thread::current):
        * wtf/win/ThreadSpecificWin.cpp: Removed.
        * wtf/win/ThreadingWin.cpp:
        (WTF::Thread::initializeTLSKey):
        (WTF::Thread::initializeTLS):
        (WTF::Thread::destructTLS):
        (WTF::Thread::SpecificStorage::allocateKey):
        (WTF::Thread::SpecificStorage::get):
        (WTF::Thread::SpecificStorage::set):
        (WTF::Thread::SpecificStorage::destroySlots):
        (): Deleted.
        (WTF::Thread::currentDying): Deleted.
        (WTF::Thread::get): Deleted.

2019-11-19  Ross Kirsling  <ross.kirsling@sony.com>

        Implement String.prototype.replaceAll
        https://bugs.webkit.org/show_bug.cgi?id=202471

        Reviewed by Yusuke Suzuki.

        * wtf/text/StringCommon.h:
        (WTF::findCommon):
        Fix logic: "start > length" early out should come before "empty search string" early out.

2019-11-19  Yusuke Suzuki  <ysuzuki@apple.com>

        [IndexedDB] IndexedDB's threading assertion should respect Web thread
        https://bugs.webkit.org/show_bug.cgi?id=204346

        Reviewed by Daniel Bates.

        * wtf/MainThread.cpp:
        (WTF::canCurrentThreadAccessThreadLocalData):
        (WTF::canAccessThreadLocalDataForThread): Deleted.
        * wtf/MainThread.h:
        * wtf/cocoa/MainThreadCocoa.mm:
        (WTF::canCurrentThreadAccessThreadLocalData):
        (WTF::canAccessThreadLocalDataForThread): Deleted.

2019-11-18  Fujii Hironori  <Hironori.Fujii@sony.com>

        Remove self-defined C++14 features in StdLibExtras.h
        https://bugs.webkit.org/show_bug.cgi?id=204220

        Reviewed by Ross Kirsling.

        Remove std::conjunction, std::in_place_t and std::make_unique definitions.
        Remove unsued std::clz.

        * wtf/StdLibExtras.h:
        (std::make_unique): Deleted.
        (std::exchange): Deleted.
        (std::clz): Deleted.

2019-11-18  Alex Christensen  <achristensen@webkit.org>

        Use SecTrustEvaluateWithError instead of SecTrustEvaluate where available
        https://bugs.webkit.org/show_bug.cgi?id=204159
        <rdar://problem/45894288>

        Reviewed by Darin Adler.

        * wtf/Platform.h:

2019-11-15  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Remove index-masking on ScopedArguments and put it in IsoSubspace
        https://bugs.webkit.org/show_bug.cgi?id=204269

        Reviewed by Saam Barati.

        * wtf/MathExtras.h:
        (WTF::computeIndexingMask): Deleted.
        (WTF::preciseIndexMaskShiftForSize): Deleted.
        (WTF::preciseIndexMaskShift): Deleted.
        (WTF::opaque): Deleted.
        (WTF::preciseIndexMaskPtr): Deleted.

2019-11-14  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] BlockDirectory's bits should be compact
        https://bugs.webkit.org/show_bug.cgi?id=204149

        Reviewed by Robin Morisset.

        * wtf/FastBitVector.h:
        (WTF::fastBitVectorArrayLength):
        (WTF::FastBitVectorImpl::unsafeWords):
        (WTF::FastBitVectorImpl::unsafeWords const):
        (WTF::FastBitReference::FastBitReference):
        (WTF::FastBitReference::operator bool const):
        (WTF::FastBitReference::operator=):
        (WTF::FastBitVector::at):
        (WTF::FastBitVector::operator[]):
        (WTF::FastBitVector::BitReference::BitReference): Deleted.
        (WTF::FastBitVector::BitReference::operator bool const): Deleted.
        (WTF::FastBitVector::BitReference::operator=): Deleted.

2019-11-11  Ross Kirsling  <ross.kirsling@sony.com>

        UTC offset for Samoa is miscalculated when !HAVE(TIMEGM)
        https://bugs.webkit.org/show_bug.cgi?id=204032

        Reviewed by Yusuke Suzuki.

        We have code assuming that the world's time zones haven't changed in the past decade,
        but Samoa changed from UTC-11 to UTC+13 at the beginning of 2012.

        (Note: "Samoa" here means the Independent State of Samoa (Pacific/Apia) and not American Samoa (Pacific/Samoa).
               See https://en.wikipedia.org/wiki/Time_in_Samoa for more information.)

        * wtf/DateMath.cpp:
        (WTF::calculateUTCOffset):
        Update "canned date" from 2009 to 2019.

2019-11-07  Mark Lam  <mark.lam@apple.com>

        Add a stack overflow check in Yarr::ByteCompiler::emitDisjunction().
        https://bugs.webkit.org/show_bug.cgi?id=203936
        <rdar://problem/56624724>

        Reviewed by Saam Barati.

        1. Add a StackCheck utility class so that we don't have to keep reinventing this
           every time we need to add stack checking somewhere.
        2. Rename some arguments and constants in StackBounds to be more descriptive of
           what they actually are.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/StackBounds.h:
        (WTF::StackBounds::recursionLimit const):
        * wtf/StackCheck.h: Added.
        (WTF::StackCheck::StackCheck):
        (WTF::StackCheck::isSafeToRecurse):

2019-11-06  Mark Lam  <mark.lam@apple.com>

        Remove remnants of support code for an upwards growing stack.
        https://bugs.webkit.org/show_bug.cgi?id=203942

        Reviewed by Yusuke Suzuki.

        We haven't supported an upwards growing stack in years, and a lot of code has
        since been written specifically with only a downwards growing stack in mind (e.g.
        the LLInt, the JITs).  Also, all our currently supported platforms use a downward
        growing stack.

        We should remove the remnants of support code for an upwards growing stack.  The
        presence of that code is deceptive in that it conveys support for an upwards
        growing stack where this hasn't been the case in years.

        * wtf/StackBounds.cpp:
        (WTF::StackBounds::newThreadStackBounds):
        (WTF::StackBounds::currentThreadStackBoundsInternal):
        (WTF::StackBounds::stackDirection): Deleted.
        (WTF::testStackDirection2): Deleted.
        (WTF::testStackDirection): Deleted.
        * wtf/StackBounds.h:
        (WTF::StackBounds::size const):
        (WTF::StackBounds::contains const):
        (WTF::StackBounds::recursionLimit const):
        (WTF::StackBounds::StackBounds):
        (WTF::StackBounds::isGrowingDownwards const):
        (WTF::StackBounds::checkConsistency const):
        (WTF::StackBounds::isGrowingDownward const): Deleted.
        * wtf/StackStats.cpp:
        (WTF::StackStats::CheckPoint::CheckPoint):
        (WTF::StackStats::CheckPoint::~CheckPoint):
        (WTF::StackStats::probe):
        (WTF::StackStats::LayoutCheckPoint::LayoutCheckPoint):

2019-11-05  Mark Lam  <mark.lam@apple.com>

        WTF::RunLoop should not depend on isMainThread() idiom.
        https://bugs.webkit.org/show_bug.cgi?id=203873
        <rdar://problem/56524251>

        Reviewed by Saam Barati, Ryosuke Niwa, and Devin Rousso.

        The isMainThread() idiom is only meaningful for WebCore.  It is less meaningful
        for JSC since a VM instance can be entered from multiple threads, as long as only
        one thread enters it at any time.  Hence, the concept of a main thread doesn't
        make sense at the JSC level.

        Since r251036, we started using a WTF::String to represent the RunLoop mode.
        This caused problems for JSC clients when USE(CF) since it necessitated the use of
        StringWrapperCFAllocator to track the life cycle of the CFStringRef generated from
        the WTF::String.

        To fix this problem, we should restore the original behavior of using CFStringRefs
        as the RunLoop mode token.

        * wtf/RunLoop.h:
        (WTF::RunLoop::cycle): Deleted.
        * wtf/cf/RunLoopCF.cpp:
        (WTF::RunLoop::cycle):
        * wtf/generic/RunLoopGeneric.cpp:
        (WTF::RunLoop::cycle):
        * wtf/glib/RunLoopGLib.cpp:
        (WTF::RunLoop::cycle):
        * wtf/win/RunLoopWin.cpp:
        (WTF::RunLoop::cycle):

2019-11-05  Tuomas Karkkainen  <tuomas.webkit@apple.com>

        Add definitions of ANSI colors for colorful log output
        https://bugs.webkit.org/show_bug.cgi?id=203805

        Reviewed by Saam Barati.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/AnsiColors.h: Added.
        * wtf/CMakeLists.txt:

2019-11-05  Tuomas Karkkainen  <tuomas.webkit@apple.com>

        move CrashReporterClientSPI.h and parts of WKCrashReporter to WTF so it can be used in JavaScriptCore
        https://bugs.webkit.org/show_bug.cgi?id=203803

        Reviewed by Saam Barati.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/PlatformMac.cmake:
        * wtf/cocoa/CrashReporter.cpp: Added.
        (WTF::setCrashLogMessage):
        * wtf/cocoa/CrashReporter.h: Added.
        * wtf/spi/cocoa/CrashReporterClientSPI.h: Renamed from Source/WebKit/Platform/spi/Cocoa/CrashReporterClientSPI.h.

2019-11-02  Devin Rousso  <drousso@apple.com>

        Web Inspector: Add diagnostic logging for frontend feature usage
        https://bugs.webkit.org/show_bug.cgi?id=203579
        <rdar://problem/56717410>

        Reviewed by Brian Burg.

        Original patch by Matt Baker <mattbaker@apple.com>.

        * wtf/FeatureDefines.h:
        Add `ENABLE_INSPECTOR_TELEMETRY`, which is only enabled for macOS.

2019-11-01  Devin Rousso  <drousso@apple.com>

        Web Inspector: Timelines: add a timeline that shows information about any recorded CSS animation/transition
        https://bugs.webkit.org/show_bug.cgi?id=203651
        <rdar://problem/56128726>

        Reviewed by Brian Burg.

        * wtf/Markable.h:
        (WTF::operator==):
        (WTF::operator!=):
        Add extra utility operators.

2019-10-31  Tim Horton  <timothy_horton@apple.com>

        Turn on IOSurface support in the iOS Simulator
        https://bugs.webkit.org/show_bug.cgi?id=203026
        <rdar://problem/56320993>

        Reviewed by Simon Fraser.

        * wtf/Platform.h:
        Turn on HAVE(IOSURFACE) and USE(IOSURFACE_CANVAS_BACKING_STORE) in the simulator.
        Add HAVE(IOSURFACE_COREIMAGE_SUPPORT).

2019-10-31  Jer Noble  <jer.noble@apple.com>

        [EME] Batch multiple key requests into one request and response
        https://bugs.webkit.org/show_bug.cgi?id=203580
        <rdar://problem/54853345>

        Reviewed by Eric Carlson.

        Support appending an r-value reference Vector to another.

        * wtf/Vector.h:
        (WTF::minCapacity>::appendVector):

2019-10-31  Alex Christensen  <achristensen@webkit.org>

        Remove unneeded HAVE_TIMINGDATAOPTIONS
        https://bugs.webkit.org/show_bug.cgi?id=202990

        Reviewed by Brady Eidson.

        * wtf/Platform.h:

2019-10-31  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] DateMath should have TimeClipped version
        https://bugs.webkit.org/show_bug.cgi?id=203550

        Reviewed by Saam Barati.

        We found that our Date constructor is slow because GregorianDateTime calculation takes so long.
        We are doing many `fmod`, floating division, `floor` etc. These operations, in particular `fmod`, takes
        very long time. As a result, 30% of JetStream2/date-format-xparb is taken by `fmod` function.

        But since we are performance timeClip operation, double value in DateInstance is always Int52. We should
        have integer version of GregorianDateTime calculation which avoids many unnecessary fmod etc.

        While integer division is truncate-to-zero, many Date calculation requires `floor(value / xxx)`. For now,
        we use integer fast path only when the value is Int52 and positive.

        We see 10~ % improvement in JetStream2/date-format-xparb-SP (from 201 to 239).

        * wtf/DateMath.cpp:
        (WTF::isLeapYear): Deleted.
        (WTF::daysInYear): Deleted.
        (WTF::daysFrom1970ToYear): Deleted.
        (WTF::msToDays): Deleted.
        (WTF::msToYear): Deleted.
        (WTF::dayInYear): Deleted.
        (WTF::msToMinutes): Deleted.
        (WTF::msToHours): Deleted.
        (WTF::monthFromDayInYear): Deleted.
        (WTF::checkMonth): Deleted.
        (WTF::dayInMonthFromDayInYear): Deleted.
        (WTF::dateToDaysFrom1970): Deleted.
        (WTF::timeClip): Deleted.
        * wtf/DateMath.h:
        (WTF::TimeClippedPositiveMilliseconds::TimeClippedPositiveMilliseconds):
        (WTF::TimeClippedPositiveMilliseconds::value const):
        (WTF::TimeClippedPositiveMilliseconds::asDouble const):
        (WTF::timeClip):
        (WTF::daysFrom1970ToYear):
        (WTF::daysFrom1970ToYearTimeClippedPositive):
        (WTF::isLeapYear):
        (WTF::daysInYear):
        (WTF::msToDays):
        (WTF::dayInYear):
        (WTF::dateToDaysFrom1970):
        (WTF::msToYear):
        (WTF::msToMinutes):
        (WTF::msToHours):
        (WTF::msToSeconds):
        (WTF::msToWeekDay):
        (WTF::monthFromDayInYear):
        (WTF::dayInMonthFromDayInYear):
        * wtf/GregorianDateTime.cpp:
        (WTF::GregorianDateTime::GregorianDateTime):
        * wtf/GregorianDateTime.h:

2019-10-30  Alex Christensen  <achristensen@webkit.org>

        Prevent Mac CMake build from bit rotting
        https://bugs.webkit.org/show_bug.cgi?id=203647

        Reviewed by Tim Horton.

        * wtf/PlatformMac.cmake:

2019-10-30  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Date functions should have intrinsic
        https://bugs.webkit.org/show_bug.cgi?id=202187

        Reviewed by Keith Miller.

        * wtf/DateMath.h:
        * wtf/GregorianDateTime.cpp:
        (WTF::GregorianDateTime::setToCurrentLocalTime):
        * wtf/GregorianDateTime.h:

2019-10-30  Per Arne Vollan  <pvollan@apple.com>

        It should be possible to create a mach sandbox extension for the WebContent process before the audit token is known
        https://bugs.webkit.org/show_bug.cgi?id=203618

        Reviewed by Brent Fulgham.

        Added SPI to create mach extension without PID or audit token.

        * wtf/spi/darwin/SandboxSPI.h:

2019-10-30  Daniel Bates  <dabates@apple.com>

        Add pretty printer for CompactPointerTuple
        https://bugs.webkit.org/show_bug.cgi?id=203495

        Reviewed by Jer Noble.

        #include <wtf/FastMalloc.h> for the definition of WTF_MAKE_FAST_ALLOCATED.

        * wtf/CompactPointerTuple.h:

2019-10-29  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Add fast path for String#localeCompare
        https://bugs.webkit.org/show_bug.cgi?id=202676

        Reviewed by Mark Lam.

        * wtf/text/StringView.h:
        (WTF::StringView::isAllASCII const):

2019-10-26  Chris Lord  <clord@igalia.com>

        Put OffscreenCanvas behind a build flag
        https://bugs.webkit.org/show_bug.cgi?id=203146

        Reviewed by Ryosuke Niwa.

        * wtf/FeatureDefines.h:

2019-10-25  Andy Estes  <aestes@apple.com>

        [Quick Look] Move the QLPreviewConverter delegate into PreviewConverter and vend a C++ client interface
        https://bugs.webkit.org/show_bug.cgi?id=203396

        Reviewed by Alex Christensen.

        * wtf/FeatureDefines.h: Defined ENABLE_PREVIEW_CONVERTER.

2019-10-23  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Figure out missing prepareCallOperation
        https://bugs.webkit.org/show_bug.cgi?id=203285

        Reviewed by Mark Lam.

        Enable USE(BUILTIN_FRAME_ADDRESS) regardless of platform is the compilers and architectures match.

        * wtf/Platform.h:

2019-10-23  Tim Horton  <timothy_horton@apple.com>

        macCatalyst: Should dispatch contextmenu event on right click
        https://bugs.webkit.org/show_bug.cgi?id=203316
        <rdar://problem/54617376>

        Reviewed by Wenson Hsieh.

        * wtf/FeatureDefines.h:

2019-10-23  Truitt Savell  <tsavell@apple.com>

        Unreviewed, rolling out r251261.

        This broke multiple tests

        Reverted changeset:

        "Using version 1 CFRunloopSource for faster task dispatch"
        https://bugs.webkit.org/show_bug.cgi?id=202874
        https://trac.webkit.org/changeset/251261

2019-10-23  Myles C. Maxfield  <mmaxfield@apple.com>

        [iOS] Remove Hiragino Sans site-specific quirk for Yahoo Japan
        https://bugs.webkit.org/show_bug.cgi?id=203345

        Reviewed by Simon Fraser.

        * wtf/Platform.h:

2019-10-22  Yusuke Suzuki  <ysuzuki@apple.com>

        Make `JSGlobalObject*` threading change more stabilized by adding tests and assertions
        https://bugs.webkit.org/show_bug.cgi?id=203274

        Reviewed by Saam Barati.

        * wtf/Platform.h:

2019-10-22  Antti Koivisto  <antti@apple.com>

        operator==(Vector, Vector) should work with different inline capacities
        https://bugs.webkit.org/show_bug.cgi?id=203245

        Reviewed by Alex Christensen.

        Also allow different overflow behavior and minimum capacity.

        * wtf/Vector.h:
        (WTF::operator==):
        (WTF::operator!=):

2019-10-22  Rob Buis  <rbuis@igalia.com>

        https://bugs.webkit.org/show_bug.cgi?id=169667
        URL: protocol setter needs to be more restrictive around file

        Reviewed by Alex Christensen.

        Restrict setting protocol to "file" as indictaed in the spec [1].

        Test: imported/w3c/web-platform-tests/url/url-setters.html

        [1] https://url.spec.whatwg.org/#scheme-state steps 2.1.3 and 2.1.4.

        * wtf/URL.cpp:
        (WTF::URL::setProtocol):

2019-10-21  Tim Horton  <timothy_horton@apple.com>

        macCatalyst: Swipe navigation gestures do not work
        https://bugs.webkit.org/show_bug.cgi?id=203205
        <rdar://problem/54617473>

        Reviewed by Wenson Hsieh.

        * wtf/Platform.h:
        Add a new HAVE.

2019-10-20  Mark Lam  <mark.lam@apple.com>

        Remove all uses of untagCodePtr in debugging code.
        https://bugs.webkit.org/show_bug.cgi?id=203188
        <rdar://problem/56453043> 

        Reviewed by Yusuke Suzuki.

        We want the ability to always assert on failure to authenticate in untagCodePtr
        (though we don't currently do that yet).

        * wtf/PtrTag.cpp:
        (WTF::tagForPtr):
        * wtf/PtrTag.h:
        (WTF::retagCodePtrImpl):
        (WTF::tagCFunctionPtrImpl):
        (WTF::untagCFunctionPtrImpl):
        (WTF::assertIsCFunctionPtr):
        (WTF::isTaggedWith):

2019-10-19  Simon Fraser  <simon.fraser@apple.com>

        Add support to TextStream for dumping HashMap<> and HashSet<>
        https://bugs.webkit.org/show_bug.cgi?id=202969

        Reviewed by Dean Jackson.
        
        Make it possible to output HashMap<> and HashSet<> to TextStream,
        so long as key and value types are streamable. Also implement operator<<(char)
        so that chars show as ASCII, rather than numbers.

        * wtf/text/TextStream.cpp:
        (WTF::TextStream::operator<<):
        * wtf/text/TextStream.h:
        (WTF::operator<<):

2019-10-18  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Make ConcurrentJSLock Lock even if ENABLE_CONCURRENT_JS=OFF
        https://bugs.webkit.org/show_bug.cgi?id=202892

        Reviewed by Mark Lam.

        BaselineJIT also has concurrent compiler. ENABLE(CONCURRENT_JS) should not rely on ENABLE(DFG_JIT).
        It should rely on ENABLE(JIT) instead.

        * wtf/Platform.h:

2019-10-17  Mark Lam  <mark.lam@apple.com>

        Use constexpr in more places and remove some unnecessary external linkage.
        https://bugs.webkit.org/show_bug.cgi?id=203115

        Reviewed by Yusuke Suzuki.

        Also removed unused lockSpinLimit in Threading.h.

        * wtf/MD5.h:
        * wtf/SHA1.h:
        * wtf/StackBounds.h:
        * wtf/Threading.h:

2019-10-17  Sihui Liu  <sihui_liu@apple.com>

        Using version 1 CFRunloopSource for faster task dispatch
        https://bugs.webkit.org/show_bug.cgi?id=202874

        Reviewed by Geoffrey Garen.

        We used CFRunLoopWakeUp to wake up runloop to process source, which seems to be slow according to profiling. To 
        avoid calling CFRunLoopWakeUp, we should use version 1 CFRunloopSource instead of version 0. This patch brings
        about 15% speedup for test PerformanceTests/IndexedDB/basic/objectstore-get.html.

        * wtf/RunLoop.cpp:
        (WTF::RunLoop::initializeWebRunLoop):
        (WTF::RunLoop::web):
        * wtf/RunLoop.h:
        * wtf/cf/RunLoopCF.cpp:
        (WTF::RunLoop::performWork):
        (WTF::RunLoop::RunLoop):
        (WTF::RunLoop::~RunLoop):
        (WTF::RunLoop::wakeUp):
        * wtf/cocoa/MainThreadCocoa.mm:
        (WTF::initializeMainThreadPlatform):
        (WTF::scheduleDispatchFunctionsOnMainThread):
        (WTF::initializeWebThread):
        (-[JSWTFMainThreadCaller call]): Deleted.

2019-10-16  Wenson Hsieh  <wenson_hsieh@apple.com>

        Unreviewed, fix the internal macOS 10.13 and 10.14 builds after r251171

        * wtf/Platform.h: Add a HAVE() macro for AXClientType, which is only available on macOS 10.15+ SDKs.

2019-10-15  Chris Dumez  <cdumez@apple.com>

        [macOS] Simplify main thread initialization
        https://bugs.webkit.org/show_bug.cgi?id=203001

        Reviewed by Geoff Garen.

        Simplify main thread initialization on macOS by always using pthread main as main thread.
        The complexity is now isolated to the USE(WEB_THREAD) code path.

        This patch also adds a debug assertion in WTF::initializeWebThreadPlatform() to make sure
        it gets called on the actual main thread. In release, it will log a fault message indicating
        it was called on the wrong thread.

        * wtf/MainThread.cpp:
        * wtf/MainThread.h:
        * wtf/RefCounted.h:
        (WTF::RefCountedBase::RefCountedBase):
        (WTF::RefCountedBase::applyRefDerefThreadingCheck const):
        * wtf/cocoa/MainThreadCocoa.mm:
        (WTF::initializeMainThreadPlatform):
        (WTF::scheduleDispatchFunctionsOnMainThread):
        (WTF::initializeWebThreadPlatform):
        (WTF::canAccessThreadLocalDataForThread):
        (WTF::isMainThread):
        * wtf/generic/MainThreadGeneric.cpp:
        * wtf/text/cf/StringImplCF.cpp:
        (WTF::StringImpl::createCFString):
        * wtf/win/MainThreadWin.cpp:

2019-10-14  Tim Horton  <timothy_horton@apple.com>

        Unify sources for bindings more densely
        https://bugs.webkit.org/show_bug.cgi?id=202918

        Reviewed by Simon Fraser.

        * Scripts/generate-unified-source-bundles.rb:
        Add an option to separate and more densely unify sources that match
        a given glob pattern.

2019-10-14  Keith Rollin  <krollin@apple.com>

        Remove some support for < iOS 13
        https://bugs.webkit.org/show_bug.cgi?id=202820
        <rdar://problem/56164838>

        Reviewed by Anders Carlsson.

        Remove some support for iOS versions less than 13.0.

        Update conditionals that reference __IPHONE_OS_VERSION_MIN_REQUIRED
        and __IPHONE_OS_VERSION_MAX_ALLOWED, assuming that they both have
        values >= 130000. This means that expressions like
        "__IPHONE_OS_VERSION_MIN_REQUIRED < 101300" are always False and
        "__IPHONE_OS_VERSION_MIN_REQUIRED >= 101300" are always True.

        This removal is part of a series of patches effecting the removal of
        dead code for old versions of iOS. This particular pass involves
        changes in which Devin Rousso was involved. These changes are isolated
        from other similar changes in order to facilitate the reviewing
        process.

        * wtf/Platform.h:

2019-10-14  Alex Christensen  <achristensen@webkit.org>

        REGRESSION: [iOS 13?] TestWebKitAPI.SharedBufferTest.tryCreateArrayBufferLargeSegments is failing
        https://bugs.webkit.org/show_bug.cgi?id=201902

        Reviewed by Ryosuke Niwa.

        * wtf/Vector.h:
        The code introduced in r108153 to workaround a warning when building Chrome was causing us to use uninitialized memory
        when we create a Vector with the size_t/{signed,unsigned}char constructor with a constexpr size_t.
        This was the cause of bug 201902 and bug 201620 which only manifested themselves in release builds with some compilers.

2019-10-14  Per Arne Vollan  <pvollan@apple.com>

        [macOS] Sandbox extensions should be created with audit tokens, not PIDs
        https://bugs.webkit.org/show_bug.cgi?id=201828

        Reviewed by Brent Fulgham.

        Remove HAVE macro for issuing sandbox extension by PID, and fix version checks for the HAVE
        macros related to issuing sandbox extensions by audit token. Remove SPI for creating
        extensions by PID, and add SPI for creating mach extension by audit token. Also remove an
        unneeded flag.
        
        * wtf/Platform.h:
        * wtf/spi/darwin/SandboxSPI.h:

2019-10-08  Ryosuke Niwa  <rniwa@webkit.org>

        Make WebInspector's remote debug EventLoop code into RunLoop
        https://bugs.webkit.org/show_bug.cgi?id=202716

        Reviewed by Joseph Pecoraro.

        This patch merges WebInspector's EventLoop code into RunLoop as a static function.

        * wtf/RunLoop.h:
        (WTF::RunLoop::cycle):
        * wtf/cf/RunLoopCF.cpp:
        (WTF::RunLoop::cycle): Added.
        * wtf/generic/RunLoopGeneric.cpp:
        (WTF::RunLoop::cycle): Added.
        * wtf/glib/RunLoopGLib.cpp:
        (WTF::RunLoop::cycle): Added.
        * wtf/win/RunLoopWin.cpp:
        (WTF::RunLoop::cycle): Added.

2019-10-10  Ryosuke Niwa  <rniwa@webkit.org>

        Make it safe to store a ThreadSafeRefCounted object in Ref & RefPtr safe inside its destructor
        https://bugs.webkit.org/show_bug.cgi?id=201576

        Reviewed by Geoffrey Garen and Mark Lam.

        This patch leaves m_refCount 1 inside the last deref call to ThreadSafeRefCounted
        so that storing an instance of this object in Ref or RefPtr would not trigger a recursive delete.

        Note: this patch does not try to fix a race condition by which another thread tries to ref()
        this object after the "last" call to deref had happened since such a code would ref() this object
        long after it had been removed (UAF), nor some code calling deref() before calling ref() inside
        a destructor since there is no way to defend against unpaired calls to ref() & deref() like that.

        Also added m_deletionHasBegun like RefCounted.

        * wtf/ThreadSafeRefCounted.h:
        (WTF::ThreadSafeRefCountedBase::ref const):
        (WTF::ThreadSafeRefCountedBase::hasOneRef const):
        (WTF::ThreadSafeRefCountedBase::derefBase const):

2019-10-11  Alex Christensen  <achristensen@webkit.org>

        Only use CFNetwork SPI for metrics where needed
        https://bugs.webkit.org/show_bug.cgi?id=202825

        Reviewed by Joseph Pecoraro.

        * wtf/Platform.h:

2019-10-11  Keith Rollin  <krollin@apple.com>

        Remove some support for < iOS 13
        https://bugs.webkit.org/show_bug.cgi?id=202819
        <rdar://problem/56164233>

        Reviewed by Anders Carlsson.

        Remove some support for iOS versions less than 13.0.

        Update conditionals that reference __IPHONE_OS_VERSION_MIN_REQUIRED
        and __IPHONE_OS_VERSION_MAX_ALLOWED, assuming that they both have
        values >= 130000. This means that expressions like
        "__IPHONE_OS_VERSION_MIN_REQUIRED < 101300" are always False and
        "__IPHONE_OS_VERSION_MIN_REQUIRED >= 101300" are always True.

        This removal is part of a series of patches effecting the removal of
        dead code for old versions of iOS. This particular pass involves
        changes in which Jiewen Tan was involved. These changes are isolated
        from other similar changes in order to facilitate the reviewing
        process.

        * wtf/Platform.h:

2019-10-11  Jonathan Bedard  <jbedard@apple.com>

        Unreviewed, rolling out r250945.

        Broke 18 Debug API tests

        Reverted changeset:

        "Add support for CompactPointerTuple<..., OptionSet<...>>"
        https://bugs.webkit.org/show_bug.cgi?id=201316
        https://trac.webkit.org/changeset/250945

2019-10-11  Xabier Rodriguez Calvar  <calvaris@igalia.com>

        MediaTime pretty printer can print if time is invalid
        https://bugs.webkit.org/show_bug.cgi?id=202735

        Reviewed by Eric Carlson.

        * wtf/MediaTime.cpp:
        (WTF::MediaTime::toString const): Append ", invalid" if isInvalid().
        (WTF::MediaTime::toJSONObject const): Set boolean invalid to true
        when invalid.

2019-10-09  Keith Rollin  <krollin@apple.com>

        Remove some support for < iOS 13
        https://bugs.webkit.org/show_bug.cgi?id=202371
        <rdar://problem/55853960>

        Reviewed by Youenn Fablet.

        Remove some support for iOS versions less than 13.0.

        Update conditionals that reference __IPHONE_OS_VERSION_MIN_REQUIRED
        and __IPHONE_OS_VERSION_MAX_ALLOWED, assuming that they both have
        values >= 130000. This means that expressions like
        "__IPHONE_OS_VERSION_MIN_REQUIRED < 101300" are always False and
        "__IPHONE_OS_VERSION_MIN_REQUIRED >= 101300" are always True.

        This removal is part of a series of patches effecting the removal of
        dead code for old versions of iOS. This particular pass involves
        changes in which Dean Jackson was involved. These changes are isolated
        from other similar changes in order to facilitate the reviewing
        process.

        * wtf/FeatureDefines.h:
        * wtf/Platform.h:

2019-10-09  Daniel Bates  <dabates@apple.com>

        Add support for CompactPointerTuple<..., OptionSet<...>>
        https://bugs.webkit.org/show_bug.cgi?id=201316

        Reviewed by Yusuke Suzuki.

        Support using an OptionSet<> for the byte value portion of a CompactPointerTuple so that
        you can encode both a pointer and 8-bit bitmask in a type-safe way. Another benefit of
        supporting OptionSet<> is that we have a LLDB pretty-printer for it so this makes it easy
        to see the set flags in such a CompactPointerTuple.

        * wtf/CompactPointerTuple.h:

2019-10-09  Russell Epstein  <repstein@apple.com>

        Unreviewed, rolling out r250930.

        Broke watchOS Builds

        Reverted changeset:

        "Add support for CompactPointerTuple<..., OptionSet<...>>"
        https://bugs.webkit.org/show_bug.cgi?id=201316
        https://trac.webkit.org/changeset/250930

2019-10-09  Daniel Bates  <dabates@apple.com>

        Add support for CompactPointerTuple<..., OptionSet<...>>
        https://bugs.webkit.org/show_bug.cgi?id=201316

        Reviewed by Yusuke Suzuki.

        Support using an OptionSet<> for the byte value portion of a CompactPointerTuple so that
        you can encode both a pointer and 8-bit bitmask in a type-safe way. Another benefit of
        supporting OptionSet<> is that we have a LLDB pretty-printer for it so this makes it easy
        to see the set flags in such a CompactPointerTuple.

        * wtf/CompactPointerTuple.h:

2019-10-08  Robin Morisset  <rmorisset@apple.com>

        dataLogIf should be ALWAYS_INLINE
        https://bugs.webkit.org/show_bug.cgi?id=202703

        Reviewed by Saam Barati.

        We often have the following pattern:
        ```
        static constexpr bool verbose = false;
        ...
        dataLogLnIf(verbose, "Something is happening");
        ```
        To make sure that these are always properly eliminated I'd like to make dataLogIf/dataLogLnIf ALWAYS_INLINE.
        
        We may as well mark the branch as UNLIKELY too, for the cases where the condition comes from Options::verboseSomething() and is only known at runtime.

        * wtf/DataLog.h:
        (WTF::dataLogIf):
        (WTF::dataLogLnIf):

2019-10-07  Alexey Proskuryakov  <ap@apple.com>

        Build failure in WebHTMLView.mm with the public SDK (Xcode 11 and Mojave)
        https://bugs.webkit.org/show_bug.cgi?id=199705

        Patch by Dan Bernstein and Kenneth Russell.
        Reviewed by Alexey Proskuryakov.

        * wtf/Platform.h: Added HAVE_SUBVIEWS_IVAR_DECLARED_BY_SDK.

2019-10-04  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r250762.
        https://bugs.webkit.org/show_bug.cgi?id=202609

        Broke JSC tests by breaking refCount check in
        DropAllLocks::DropAllLocks (Requested by rniwa on #webkit).

        Reverted changeset:

        "Make a ThreadSafeRefCounted object safe to ref & deref inside
        its destructor"
        https://bugs.webkit.org/show_bug.cgi?id=201576
        https://trac.webkit.org/changeset/250762

2019-10-04  Ryosuke Niwa  <rniwa@webkit.org>

        Build fix for macOS Catalina.

        * wtf/spi/darwin/SandboxSPI.h:

2019-10-04  Ryosuke Niwa  <rniwa@webkit.org>

        Make a ThreadSafeRefCounted object safe to ref & deref inside its destructor
        https://bugs.webkit.org/show_bug.cgi?id=201576

        Reviewed by Geoffrey Garen.

        This patch leaves m_refCount 1 inside the last deref call to ThreadSafeRefCounted
        such that ref'ing and deref'ing it again inside its destructor would never try
        to double delete the object.

        Also added m_deletionHasBegun like RefCounted.

        * wtf/ThreadSafeRefCounted.h:
        (WTF::ThreadSafeRefCountedBase::ref const):
        (WTF::ThreadSafeRefCountedBase::hasOneRef const):
        (WTF::ThreadSafeRefCountedBase::derefBase const):

2019-10-04  Heiko Becker  <heirecka@exherbo.org>

        Fix build with icu 65.1
        https://bugs.webkit.org/show_bug.cgi?id=202600

        Reviewed by Konstantin Tokarev.

        * wtf/URLHelpers.cpp:
        (WTF::URLHelpers::allCharactersInIDNScriptWhiteList):

2019-10-04  Truitt Savell  <tsavell@apple.com>

        Unreviewed, rolling out r250583.

        Broke multiple internal API tests

        Reverted changeset:

        "[JSC] Place VM* in TLS"
        https://bugs.webkit.org/show_bug.cgi?id=202391
        https://trac.webkit.org/changeset/250583

2019-10-03  Keith Rollin  <krollin@apple.com>

        Remove some support for < iOS 13
        https://bugs.webkit.org/show_bug.cgi?id=202549
        <rdar://problem/55967232>

        Reviewed by Alex Christensen.

        Remove some support for iOS versions less than 13.0. 

        Update conditionals that reference __IPHONE_OS_VERSION_MIN_REQUIRED
        and __IPHONE_OS_VERSION_MAX_ALLOWED, assuming that they both have
        values >= 130000. This means that expressions like
        "__IPHONE_OS_VERSION_MIN_REQUIRED < 101300" are always False and
        "__IPHONE_OS_VERSION_MIN_REQUIRED >= 101300" are always True.

        This removal is part of a series of patches effecting the removal of
        dead code for old versions of iOS. This particular pass involves
        changes in which Michael Saboff was involved. These changes are
        isolated from other similar changes in order to facilitate the
        reviewing process.

        * wtf/spi/darwin/ProcessMemoryFootprint.h:

2019-10-03  Per Arne Vollan  <pvollan@apple.com>

        REGRESSION(249649): Unable to open local files in MiniBrowser on macOS
        https://bugs.webkit.org/show_bug.cgi?id=201798

        Reviewed by Brent Fulgham.

        Add HAVE_AUDIT_TOKEN and SANDBOX_ISSUE_READ_EXTENSION_TO_PROCESS_BY_AUDIT_TOKEN defines.

        * wtf/Platform.h:

2019-10-02  Myles C. Maxfield  <mmaxfield@apple.com>

        REGRESSION (r245672): <select> dropdown with text-rendering: optimizeLegibility freezes Safari
        https://bugs.webkit.org/show_bug.cgi?id=202198

        Reviewed by Tim Horton.

        * wtf/Platform.h:

2019-10-02  Mark Lam  <mark.lam@apple.com>

        DoubleToStringConverter::ToExponential() should null terminate its string.
        https://bugs.webkit.org/show_bug.cgi?id=202492
        <rdar://problem/55907708>

        Reviewed by Filip Pizlo.

        * wtf/dtoa/double-conversion.cc:
        - DoubleToStringConverter::DoubleToAscii() always produces a null terminated
          string.  Fixed the padding loop in DoubleToStringConverter::ToExponential()
          that follows it to also keep the null terminator.

        * wtf/dtoa/utils.h:
        (WTF::double_conversion::StringBuilder::AddSubstring):
        - An assertion in here was using strlen() which indicates that it expects a null
          terminator in the incoming string.  However, this requirement is too restrictive.
          The code does not actually depend on the string having a null terminator, only
          that a null terminator does not manifest before the nth character.  Changed
          the assertion to use strnlen() instead to reflect this.

2019-10-02  Zan Dobersek  <zdobersek@igalia.com>

        [Nicosia] Enable async scrolling at build-time for Nicosia-using ports
        https://bugs.webkit.org/show_bug.cgi?id=202397

        Reviewed by Carlos Garcia Campos.

        * wtf/Platform.h:
        Flip ENABLE_KINETIC_SCROLLING to 1 also for PlayStation and WPE ports
        when ASYNC_SCROLLING is enabled.
2019-10-01  Jonathan Bedard  <jbedard@apple.com>

        WebKitTestRunner: Many tests timeout on macOS Catalina
        https://bugs.webkit.org/show_bug.cgi?id=201616
        <rdar://problem/55200897>

        Reviewed by Alexey Proskuryakov.

        * wtf/Platform.h: USE_SOURCE_APPLICATION_AUDIT_DATA should only be enabled on
        builds which allow restricted entitlements.

2019-10-01  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Place VM* in TLS
        https://bugs.webkit.org/show_bug.cgi?id=202391

        Reviewed by Mark Lam.

        Changed FastTLS's key name from WTF_GC_TLC_KEY to WTF_VM_KEY.

        * wtf/FastTLS.h:

2019-10-01  Keith Rollin  <krollin@apple.com>

        Remove some support for < iOS 13
        https://bugs.webkit.org/show_bug.cgi?id=202386
        <rdar://problem/55863017>

        Reviewed by Eric Carlson.

        Remove some support for iOS versions less than 13.0.

        Update conditionals that reference __IPHONE_OS_VERSION_MIN_REQUIRED
        and __IPHONE_OS_VERSION_MAX_ALLOWED, assuming that they both have
        values >= 130000. This means that expressions like
        "__IPHONE_OS_VERSION_MIN_REQUIRED < 101300" are always False and
        "__IPHONE_OS_VERSION_MIN_REQUIRED >= 101300" are always True.

        This removal is part of a series of patches effecting the removal of
        dead code for old versions of iOS. This particular pass involves
        changes in which Jer Noble was involved. These changes are isolated
        from other similar changes in order to facilitate the reviewing
        process.

        * wtf/Platform.h:


2019-09-30  Alex Christensen  <achristensen@webkit.org>

        Resurrect Mac CMake build
        https://bugs.webkit.org/show_bug.cgi?id=202384

        Rubber-stamped by Tim Horton.

        * wtf/PlatformMac.cmake:

2019-09-30  Mark Lam  <mark.lam@apple.com>

        Add some assertions to convertUTF8ToUTF16().
        https://bugs.webkit.org/show_bug.cgi?id=202356
        <rdar://problem/52846813>

        Reviewed by Filip Pizlo.

        * wtf/unicode/UTF8Conversion.cpp:
        (WTF::Unicode::convertUTF8ToUTF16):

2019-09-30  Guillaume Emont  <guijemont@igalia.com>

        Don't try to use backtrace() on MIPS
        https://bugs.webkit.org/show_bug.cgi?id=202196

        Reviewed by Carlos Garcia Campos.

        backtrace() on mips seems to always return 1 on mips/glibc (I tried
        with buildroot, debian stable and debian testing, with and without
        libunwind), which renders it useless and breaks a RELEASE_ASSERT in
        StackTrace::captureStackTrace().

        * wtf/Platform.h:

2019-09-29  Keith Rollin  <krollin@apple.com>

        Address static analysis warning in ParkingLot.cpp: Access to field 'size' results in a dereference of a null pointer
        https://bugs.webkit.org/show_bug.cgi?id=202154
        <rdar://problem/55672103>

        Reviewed by Brent Fulgham.

        Static analysis reports the following:

            .../OpenSource/Source/WTF/wtf/ParkingLot.cpp:376:30: warning: Access to field 'size' results in a dereference of a null pointer (loaded from variable 'oldHashtable')
                RELEASE_ASSERT(newSize > oldHashtable->size);
                                         ^~~~~~~~~~~~~~~~~~

        This warning arises because earlier code checks to see if oldHashtable
        is NULL, leading the static analyzer to think that it *could* be NULL.
        However, even earlier code actually ensures that oldHashtable will not
        be NULL. Address this by removing the NULL check, and back it up with
        an ASSERT to ensure that it's not NULL.

        * wtf/ParkingLot.cpp:

2019-09-26  Alexey Shvayka  <shvaikalesh@gmail.com>

        toExponential, toFixed, and toPrecision should allow arguments up to 100
        https://bugs.webkit.org/show_bug.cgi?id=199163

        Reviewed by Ross Kirsling.

        Increase size of NumberToStringBuffer: <21 digits> + decimal point + <100 digits> + null char = 123.
        Increase kMaxFixedDigitsAfterPoint to make Number.prototype.toFixed work with arguments up to 100.
        Also update other constants to their correct values.

        * wtf/dtoa.h:
        * wtf/dtoa/double-conversion.cc:
        * wtf/dtoa/double-conversion.h:

2019-09-25  Keith Rollin  <krollin@apple.com>

        Address static analysis warning in UTextProviderLatin1.cpp: Array access results in a null pointer dereference
        https://bugs.webkit.org/show_bug.cgi?id=202155
        <rdar://problem/55672422>

        Reviewed by Geoffrey Garen.

        Xcode's static analysis reports:

            .../OpenSource/Source/WTF/wtf/text/icu/UTextProviderLatin1.cpp:185:22: warning: Array access (from variable 'dest') results in a null pointer dereference
                    dest[length] = 0;
                    ~~~~         ^

        This error is due to an earlier "if" statement that caused the static
        analyzer to infer that "dest" could be NULL. It turns out that that
        previous check was in error, in that it tested for "!dest" when it
        should have tested for "dest". So this patch fixes that.

        Even with that error fixed, the static analyzer will still infer that
        "dest" could be NULL at the point shown above. Therefore, add a "dest"
        test just before the assignment.

        * wtf/text/icu/UTextProviderLatin1.cpp:
        (WTF::uTextLatin1Extract):

2019-09-25  Wenson Hsieh  <wenson_hsieh@apple.com>

        [iPadOS] [DataActivation] Focus moves away after focusing input fields on www.att.com
        https://bugs.webkit.org/show_bug.cgi?id=202167
        <rdar://problem/55185021>

        Reviewed by Tim Horton.

        Declare DYLD_IOS_VERSION_13_2.

        * wtf/spi/darwin/dyldSPI.h:

2019-09-24  Keith Rollin  <krollin@apple.com>

        Coalesce or remove PLATFORM(MAC) || PLATFORM(IOS_FAMILY)
        https://bugs.webkit.org/show_bug.cgi?id=202119
        <rdar://problem/55638792>

        Reviewed by Alex Christensen.

        After refactoring and other code evolution, some platform checks have
        ended up looking like PLATFORM(MAC) || PLATFORM(IOS_FAMILY) (or
        vice-versa). These can be converted into the equivalent
        PLATFORM(COCOA). Where the instance occurs in a Cocoa-only file, the
        check can be removed altogether (along with any "#else" branches).

        * wtf/Platform.h:
        * wtf/text/TextBreakIterator.h:

2019-09-21  David Kilzer  <ddkilzer@apple.com>

        clang-tidy: Fix unnecessary copy/ref churn of for loop variables in WTF/JavaScriptCore
        <https://webkit.org/b/202069>

        Reviewed by Mark Lam.

        Fix unwanted copying/ref churn of loop variables by making them
        const references.

        * wtf/AggregateLogger.h:
        (WTF::AggregateLogger::log const):

2019-09-20  Keith Rollin  <krollin@apple.com>

        Remove some support for < iOS 13
        https://bugs.webkit.org/show_bug.cgi?id=201967
        <rdar://problem/55504738>

        Reviewed by Andy Estes.

        Remove some support for iOS versions less than 13.0.

        Update conditionals that reference __IPHONE_OS_VERSION_MIN_REQUIRED
        and __IPHONE_OS_VERSION_MAX_ALLOWED, assuming that they both have
        values >= 130000. This means that expressions like
        "__IPHONE_OS_VERSION_MIN_REQUIRED < 101300" are always False and
        "__IPHONE_OS_VERSION_MIN_REQUIRED >= 101300" are always True.

        After version checks have been removed, there are some cases where the
        preprocessor conditional looks like "#if PLATFORM(MAC) ||
        PLATFORM(IOS_FAMILY)". These can be collapsed into "#if
        PLATFORM(COCOA)". This additional cleanup will be performed in a
        subsequent patch.

        This removal is part of a series of patches effecting the removal of
        dead code for old versions of iOS. This particular pass involves
        changes in which Andy Estes was involved. These changes are isolated
        from other similar changes in order to facilitate the reviewing
        process.

        * wtf/FeatureDefines.h:

2019-09-20  Keith Rollin  <krollin@apple.com>

        Remove some support for < iOS 13
        https://bugs.webkit.org/show_bug.cgi?id=201973
        <rdar://problem/55506966>

        Reviewed by Alex Christensen.

        Remove some support for iOS versions less than 13.0.

        Update conditionals that reference __IPHONE_OS_VERSION_MIN_REQUIRED
        and __IPHONE_OS_VERSION_MAX_ALLOWED, assuming that they both have
        values >= 130000. This means that expressions like
        "__IPHONE_OS_VERSION_MIN_REQUIRED < 101300" are always False and
        "__IPHONE_OS_VERSION_MIN_REQUIRED >= 101300" are always True.

        This removal is part of a series of patches effecting the removal of
        dead code for old versions of iOS. This particular pass involves
        changes in which Chris Dumez was involved. These changes are isolated
        from other similar changes in order to facilitate the reviewing
        process.

        * wtf/FeatureDefines.h:

2019-09-20  Paulo Matos  <pmatos@igalia.com>

        Implement memory monitoring functions for Linux OS
        https://bugs.webkit.org/show_bug.cgi?id=200391

        Reviewed by Žan Doberšek.

        * wtf/PlatformGTK.cmake:
        * wtf/PlatformJSCOnly.cmake:
        * wtf/PlatformWPE.cmake:
        * wtf/linux/ProcessMemoryFootprint.h: Added.
        (ProcessMemoryFootprint::now):
        (ProcessMemoryFootprint::resetPeak):

2019-09-20  Libor Bukata  <libor.bukata@oracle.com>

        UI process crash when using callOnMainThread() after the main thread dispatcher has been destroyed
        https://bugs.webkit.org/show_bug.cgi?id=197266

        Reviewed by Carlos Garcia Campos.

        * wtf/generic/MainThreadGeneric.cpp:
        (WTF::scheduleDispatchFunctionsOnMainThread):

2019-09-17  Mark Lam  <mark.lam@apple.com>

        Use constexpr instead of const in symbol definitions that are obviously constexpr.
        https://bugs.webkit.org/show_bug.cgi?id=201879

        Rubber-stamped by Joseph Pecoraro.

        * wtf/Assertions.cpp:
        * wtf/AutomaticThread.cpp:
        * wtf/BitVector.h:
        * wtf/Bitmap.h:
        * wtf/BloomFilter.h:
        * wtf/Brigand.h:
        * wtf/CheckedArithmetic.h:
        * wtf/CrossThreadCopier.h:
        * wtf/CurrentTime.cpp:
        * wtf/DataLog.cpp:
        * wtf/DateMath.cpp:
        (WTF::daysFrom1970ToYear):
        * wtf/DeferrableRefCounted.h:
        * wtf/GetPtr.h:
        * wtf/HashFunctions.h:
        * wtf/HashMap.h:
        * wtf/HashTable.h:
        * wtf/HashTraits.h:
        * wtf/JSONValues.cpp:
        * wtf/JSONValues.h:
        * wtf/ListHashSet.h:
        * wtf/Lock.h:
        * wtf/LockAlgorithm.h:
        * wtf/LockAlgorithmInlines.h:
        (WTF::Hooks>::lockSlow):
        * wtf/Logger.h:
        * wtf/LoggerHelper.h:
        (WTF::LoggerHelper::childLogIdentifier const):
        * wtf/MainThread.cpp:
        * wtf/MetaAllocatorPtr.h:
        * wtf/MonotonicTime.h:
        * wtf/NaturalLoops.h:
        (WTF::NaturalLoops::NaturalLoops):
        * wtf/ObjectIdentifier.h:
        * wtf/RAMSize.cpp:
        * wtf/Ref.h:
        * wtf/RefPtr.h:
        * wtf/RetainPtr.h:
        * wtf/SchedulePair.h:
        * wtf/StackShot.h:
        * wtf/StdLibExtras.h:
        * wtf/TinyPtrSet.h:
        * wtf/URL.cpp:
        * wtf/URLHash.h:
        * wtf/URLParser.cpp:
        (WTF::URLParser::defaultPortForProtocol):
        * wtf/Vector.h:
        * wtf/VectorTraits.h:
        * wtf/WallTime.h:
        * wtf/WeakHashSet.h:
        * wtf/WordLock.h:
        * wtf/cocoa/CPUTimeCocoa.cpp:
        * wtf/cocoa/MemoryPressureHandlerCocoa.mm:
        * wtf/persistence/PersistentDecoder.h:
        * wtf/persistence/PersistentEncoder.h:
        * wtf/text/AtomStringHash.h:
        * wtf/text/CString.h:
        * wtf/text/StringBuilder.cpp:
        (WTF::expandedCapacity):
        * wtf/text/StringHash.h:
        * wtf/text/StringImpl.h:
        * wtf/text/StringToIntegerConversion.h:
        (WTF::toIntegralType):
        * wtf/text/SymbolRegistry.h:
        * wtf/text/TextStream.cpp:
        (WTF::hasFractions):
        * wtf/text/WTFString.h:
        * wtf/text/cocoa/TextBreakIteratorInternalICUCocoa.cpp:

2019-09-16  Alex Christensen  <achristensen@webkit.org>

        Remove "gopher" from list of special schemes in URLParser
        https://bugs.webkit.org/show_bug.cgi?id=201852

        Reviewed by Simon Fraser.

        There is little meaningful content on gopher servers, and WebKit does not actually support gopher.
        This makes WebKit match the behavior of Gecko and goes along with a change proposed at
        https://github.com/whatwg/url/issues/342

        * wtf/URLParser.cpp:
        (WTF::URLParser::defaultPortForProtocol):
        (WTF::scheme):
        (WTF::URLParser::copyURLPartsUntil):
        (WTF::URLParser::parse):

2019-09-14  Yusuke Suzuki  <ysuzuki@apple.com>

        Retire x86 32bit JIT support
        https://bugs.webkit.org/show_bug.cgi?id=201790

        Reviewed by Mark Lam.

        * wtf/Platform.h:

2019-09-13  Jonathan Bedard  <jbedard@apple.com>

        iOS 13: Some SPI targets 13.1
        https://bugs.webkit.org/show_bug.cgi?id=201777

        Reviewed by Alexey Proskuryakov.

        * wtf/Platform.h:

2019-09-12  Mark Lam  <mark.lam@apple.com>

        Harden JSC against the abuse of runtime options.
        https://bugs.webkit.org/show_bug.cgi?id=201597
        <rdar://problem/55167068>

        Reviewed by Filip Pizlo.

        Add a source file that was missing so that Xcode can search its contents too.

        * WTF.xcodeproj/project.pbxproj:

2019-09-09  Tim Horton  <timothy_horton@apple.com>

        Clarify some macCatalyst feature flags
        https://bugs.webkit.org/show_bug.cgi?id=201619
        <rdar://problem/54615618>

        Reviewed by Megan Gardner.

        * wtf/Platform.h:
        We prefer specific flags over platform checks.

2019-09-07  David Quesada  <david_quesada@apple.com>

        REGRESSION(r248533): Unable to use WTF::RefCounted when building in a debug configuration against a non-debug WebKit
        https://bugs.webkit.org/show_bug.cgi?id=201585
        rdar://problem/55153369

        Reviewed by Chris Dumez.

        Export WTF::RefCountedBase::areThreadingChecksEnabledGlobally regardless of whether or not assertions
        are enabled for the WTF being built. This allows WebKit-based projects to use RefCounted for their own
        objects in a debug configuration without requiring a debug build of WebKit.

        * wtf/RefCounted.cpp:
        * wtf/RefCounted.h:

2019-09-07  Mark Lam  <mark.lam@apple.com>

        performJITMemcpy() source buffer should not be in the Gigacage.
        https://bugs.webkit.org/show_bug.cgi?id=201577
        <rdar://problem/55142606>

        Reviewed by Michael Saboff.

        * wtf/Gigacage.h:
        (Gigacage::contains):

2019-09-06  Mark Lam  <mark.lam@apple.com>

        Harden protection of the Gigacage Config parameters.
        https://bugs.webkit.org/show_bug.cgi?id=201570
        <rdar://problem/55134229>

        Reviewed by Saam Barati.

        Just renaming some function names here.

        * wtf/Gigacage.h:
        (Gigacage::forbidDisablingPrimitiveGigacage):
        (Gigacage::isDisablingPrimitiveGigacageForbidden):
        (Gigacage::disableDisablingPrimitiveGigacageIfShouldBeEnabled): Deleted.
        (Gigacage::isDisablingPrimitiveGigacageDisabled): Deleted.

2019-09-05  Mark Lam  <mark.lam@apple.com>

        Refactor the Gigacage code to require less pointer casting.
        https://bugs.webkit.org/show_bug.cgi?id=201521

        Reviewed by Saam Barati.

        Remove some unneeded stubs in WTF Gigacage.h.

        * wtf/Gigacage.cpp:
        * wtf/Gigacage.h:
        (Gigacage::name):
        (Gigacage::isEnabled):
        (Gigacage::basePtr): Deleted.
        (Gigacage::basePtrs): Deleted.

2019-08-30  Alex Christensen  <achristensen@webkit.org>

        Remove HAVE_CFNETWORK_WITH_AUTO_ADDED_HTTP_HEADER_SUPPRESSION_SUPPORT conditional
        https://bugs.webkit.org/show_bug.cgi?id=201280

        Reviewed by Youenn Fablet.

        * wtf/Platform.h:

2019-08-30  Alex Christensen  <achristensen@webkit.org>

        Remove HAVE_CFNETWORK_WITH_IGNORE_HSTS conditional
        https://bugs.webkit.org/show_bug.cgi?id=201279

        Reviewed by Darin Adler.

        * wtf/Platform.h:

2019-08-30  Alex Christensen  <achristensen@webkit.org>

        Fix non-iOS iOS-family and catalyst builds after r249019
        https://bugs.webkit.org/show_bug.cgi?id=200945

        * wtf/Platform.h:
        State that they have tls_protocol_version_t

2019-08-30  Simon Fraser  <simon.fraser@apple.com>

        Add system tracing points for compositing updates, and touch-event dispatching
        https://bugs.webkit.org/show_bug.cgi?id=201327

        Reviewed by Alex Christensen.

        * wtf/SystemTracing.h:

2019-08-30  Keith Rollin  <krollin@apple.com>

        Remove AppKitCompatibilityDeclarations.h
        https://bugs.webkit.org/show_bug.cgi?id=201283
        <rdar://problem/54822042>

        Reviewed by Alexey Proskuryakov.

        The two copies of these files -- on in WTF, one in MiniBrowser -- are
        empty and can be removed.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/PlatformMac.cmake:
        * wtf/mac/AppKitCompatibilityDeclarations.h: Removed.

2019-08-29  Keith Rollin  <krollin@apple.com>

        Remove HAVE_PASSKIT_GRANULAR_ERRORS conditional
        https://bugs.webkit.org/show_bug.cgi?id=201278
        <rdar://problem/54821052>

        Reviewed by Alex Christensen.

        HAVE_PASSKIT_GRANULAR_ERRORS is always True, so remove the conditional
        tests, keeping the True branches and removing the False branches.

        * wtf/FeatureDefines.h:

2019-08-29  Keith Rollin  <krollin@apple.com>

        Update .xcconfig symbols to reflect the current set of past and future product versions.
        https://bugs.webkit.org/show_bug.cgi?id=200720
        <rdar://problem/54305032>

        Reviewed by Alex Christensen.

        Remove version symbols related to old OS's we no longer support,
        ensure that version symbols are defined for OS's we do support.

        * Configurations/Base.xcconfig:
        * Configurations/DebugRelease.xcconfig:

2019-08-29  Keith Rollin  <krollin@apple.com>

        Remove 32-bit macOS support
        https://bugs.webkit.org/show_bug.cgi?id=201282
        <rdar://problem/54821667>

        Reviewed by Anders Carlsson.

        WebKit doesn’t support 32-bit Mac any more, so remove checks and code
        for that platform.

        * wtf/Platform.h:

2019-08-29  Chris Dumez  <cdumez@apple.com>

        CompletionHandler default constructor does not initialize `m_wasConstructedOnMainThread`
        https://bugs.webkit.org/show_bug.cgi?id=201249

        Reviewed by Joseph Pecoraro and Alex Christensen.

        * wtf/CompletionHandler.h:
        (WTF::CompletionHandler<Out):

2019-08-29  Chris Dumez  <cdumez@apple.com>

        Crash when mach_port_deallocate() returns KERN_INVALID_NAME
        https://bugs.webkit.org/show_bug.cgi?id=201248
        <rdar://problem/54813890>

        Reviewed by Alex Christensen.

        * wtf/cocoa/MachSendRight.cpp:
        (WTF::deallocateSendRightSafely):

2019-08-25  Fujii Hironori  <Hironori.Fujii@sony.com>

        Regression(r248533) Assertion hit in isMainThread() for some clients using WTF because the main thread is not initialized
        https://bugs.webkit.org/show_bug.cgi?id=201083
        <rdar://problem/54651993>

        Unreviewed build fox for Windows.

        * wtf/win/MainThreadWin.cpp:
        (WTF::isMainThreadInitialized): Added.

2019-08-23  Jiewen Tan  <jiewen_tan@apple.com>

        Unreviewed, build fix after r249059

        * wtf/Platform.h:
        Make HAVE_NEAR_FIELD available only on iOS 13+ and macOS Catalina+.

2019-08-23  Chris Dumez  <cdumez@apple.com>

        Regression(r248533) Assertion hit in isMainThread() for some clients using WTF because the main thread is not initialized
        https://bugs.webkit.org/show_bug.cgi?id=201083

        Reviewed by Alex Christensen.

        An assertion is hit in isMainThread() for some clients using WTF because the main thread is not initialized, since r248533.
        Clients can work around this by calling WTF::initializeMainThread() before using WTF but it seems unfortunate to force them
        to do so. I propose we disable the assertion until the main thread is initialized.

        * wtf/MainThread.h:
        * wtf/RefCounted.h:
        (WTF::RefCountedBase::RefCountedBase):
        (WTF::RefCountedBase::applyRefDerefThreadingCheck const):
        * wtf/cocoa/MainThreadCocoa.mm:
        (WTF::isMainThreadInitialized):
        * wtf/generic/MainThreadGeneric.cpp:
        (WTF::isMainThreadInitialized):

2019-08-21  Jiewen Tan  <jiewen_tan@apple.com>

        [WebAuthn] Support NFC authenticators for iOS
        https://bugs.webkit.org/show_bug.cgi?id=188624
        <rdar://problem/43354214>

        Reviewed by Chris Dumez.

        * wtf/Platform.h:
        Add a feature flag for NearField.

2019-08-22  Andy Estes  <aestes@apple.com>

        [watchOS] Disable Content Filtering in the simulator build
        https://bugs.webkit.org/show_bug.cgi?id=201047

        Reviewed by Tim Horton.

        * wtf/Platform.h:

2019-08-22  Keith Rollin  <krollin@apple.com>

        Remove support for tvOS < 13.0
        https://bugs.webkit.org/show_bug.cgi?id=200963
        <rdar://problem/54541355>

        Reviewed by Tim Horton.

        Update conditionals that reference __TV_OS_VERSION_MIN_REQUIRED and
        __TV_OS_VERSION_MAX_ALLOWED, assuming that they both have values >=
        130000. This means that expressions like "__TV_OS_VERSION_MIN_REQUIRED
        < 130000" are always False and "__TV_OS_VERSION_MIN_REQUIRED >=
        130000" are always True.

        * wtf/FeatureDefines.h:
        * wtf/Platform.h:

2019-08-22  Kate Cheney  <katherine_cheney@apple.com>

        Logging in FileSystem::deleteFile should avoid logging unsurprising errors
        https://bugs.webkit.org/show_bug.cgi?id=200831

        Reviewed by Chris Dumez.

        To avoid overlogging unnecessary information, added a check to avoid logging
        ENOENT (file not found) errors.

        * wtf/posix/FileSystemPOSIX.cpp:
        (WTF::FileSystemImpl::deleteFile):

2019-08-22  Alex Christensen  <achristensen@webkit.org>

        Disable legacy TLS versions and add a temporary default to re-enable it
        https://bugs.webkit.org/show_bug.cgi?id=200945

        Reviewed by Brady Eidson.

        * wtf/Platform.h:

2019-08-22  Darin Adler  <darin@apple.com>

        Rename StringBuilder functions to avoid unclear "append uninitialized" terminology
        https://bugs.webkit.org/show_bug.cgi?id=201020

        Reviewed by Alex Christensen.

        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::allocateBuffer): Use std::memcpy instead of just memcpy.
        (WTF::StringBuilder::extendBufferForAppending): Renamed.
        (WTF::StringBuilder::extendBufferForAppendingWithoutOverflowCheck): Ditto.
        (WTF::StringBuilder::extendBufferForAppending8): Ditto.
        (WTF::StringBuilder::extendBufferForAppending16): Ditto.
        (WTF::StringBuilder::extendBufferForAppendingSlowPath): Ditto.
        (WTF::StringBuilder::appendCharacters): Updated for new names.
        * wtf/text/StringBuilder.h: Updated for new names.

2019-08-17  Darin Adler  <darin@apple.com>

        Use makeString and multi-argument StringBuilder::append instead of less efficient multiple appends
        https://bugs.webkit.org/show_bug.cgi?id=200862

        Reviewed by Ryosuke Niwa.

        * wtf/DateMath.cpp:
        (WTF::makeRFC2822DateString): Use one append instead of multiple.
        * wtf/JSONValues.cpp:
        (WTF::appendDoubleQuotedString): Ditto.

2019-08-21  Mark Lam  <mark.lam@apple.com>

        Fix infinite recursion in WTFCrashWithInfo() after r248930.
        https://bugs.webkit.org/show_bug.cgi?id=201022

        Reviewed by Saam Barati.

        * wtf/Assertions.cpp:
        (WTFCrashWithInfoImpl):
        (WTFCrashWithInfo): Deleted.
        * wtf/Assertions.h:
        (WTFCrashWithInfo):

2019-08-21  Chris Dumez  <cdumez@apple.com>

        registrableDomainsToRemoveWebsiteDataFor() does not need to return a HashMap
        https://bugs.webkit.org/show_bug.cgi?id=200985

        Reviewed by John Wilander.

        Allow calling crossThreadCopy() on a std::pair<>.

        * wtf/CrossThreadCopier.h:

2019-08-21  Keith Rollin  <krollin@apple.com>

        Remove support for watchOS < 6.0
        https://bugs.webkit.org/show_bug.cgi?id=200937
        <rdar://problem/54524009>

        Reviewed by Darin Adler.

        Update conditionals that reference __WATCH_OS_VERSION_MIN_REQUIRED and
        __WATCH_OS_VERSION_MAX_ALLOWED, assuming that they both have values >=
        60000. This means that expressions like
        "__WATCH_OS_VERSION_MIN_REQUIRED < 60000" are always False and
        "__WATCH_OS_VERSION_MIN_REQUIRED >= 60000" are always True.

        * wtf/FeatureDefines.h:
        * wtf/Platform.h:

2019-08-20  Mark Lam  <mark.lam@apple.com>

        Make it easier to pass pointers to WTFCrashWithInfo.
        https://bugs.webkit.org/show_bug.cgi?id=200960

        Reviewed by Saam Barati and Yusuke Suzuki.

        Now, we don't have to explicitly cast them to uint64_ts first.  The template
        wrappers will take care of it for us.

        * wtf/Assertions.h:
        (wtfCrashArg):
        (WTFCrashWithInfo):
        (WTF::isIntegralOrPointerType):
        (WTF::isIntegralType): Deleted.

2019-08-20  Saam Barati  <sbarati@apple.com>

        Unreviewed. Followup to r248903. It's not valid to remove
        hasOverflowed() checks from appendCharacters.

        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::appendCharacters):

2019-08-20  Darin Adler  <darin@apple.com>

        Variadic StringBuilder::append does not handle upconverting from 8-bit to 16-bit correctly
        https://bugs.webkit.org/show_bug.cgi?id=200921

        Reviewed by Saam Barati.

        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::appendUninitialized8): Renamed from
        appendUninitializedWithoutOverflowCheckForLChar and moved the length overflow
        check in here to cut down on unnecessary inlining and code size.
        (WTF::StringBuilder::appendUninitialized16): Renamed from
        appendUninitializedWithoutOverflowCheckForUChar, moved the length overflow check
        in here, and moved the necessary upconversion code from the const UChar* overload of
        the appendCharacters function.
        (WTF::StringBuilder::appendCharacters): Removed unneeded "length has already overflowed"
        check at the start of the function since the code in the function already handles that
        case correctly. Refactored the const UChar* overload to use the new appendCharacters16
        function so it can share more code with StringBuilder::appendFromAdapters.

        * wtf/text/StringBuilder.h:
        (WTF::StringBuilder::appendFromAdapters): Updated the function names for the
        two appendUninitialized functions, which now do a bit more than before. Removed the
        overflow check since the appendUninitialized8/16 functions now handle that; better to
        not make the inlined code larger to handle a failure case.

2019-08-19  Sam Weinig  <weinig@apple.com>

        [WHLSL] Make generated Metal code should be indented properly to ease reading while debugging
        https://bugs.webkit.org/show_bug.cgi?id=200870

        Reviewed by Saam Barati.

        Adds simple Indentation class to allow programatic indenting compatible with StringTypeAdapter
        aware functions/class (e.g. makeString and StringBuilder). Templatized on the number of spaces
        to indent.
        
        Also adds IndentationScope, which uses RAII to increment/decrement the indentation value.

        * wtf/text/StringConcatenate.h:
        (WTF::Indentation::operator++):
        (WTF::Indentation::operator--):
        (WTF::IndentationScope::IndentationScope):
        (WTF::IndentationScope::~IndentationScope):

2019-08-19  Per Arne Vollan  <pvollan@apple.com>

        Unreviewed build fix for macOS 10.14 after r248832.

        * wtf/Platform.h:

2019-08-19  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] Add makeUnique<T>, which ensures T is fast-allocated, actual static_assert part
        https://bugs.webkit.org/show_bug.cgi?id=200620

        Reviewed by Geoff Garen.

        This is the last part of the split patch from https://bugs.webkit.org/show_bug.cgi?id=200620.
        Expose T::webkitFastMalloced type to perform static_assert in makeUnique.
        makeUnique and makeUniqueRef start performing static_assert check to ensure that the type T is FastMalloced / IsoHeaped.

        * wtf/FastMalloc.h:
        * wtf/StdLibExtras.h:
        (WTF::makeUnique):
        * wtf/UniqueRef.h:
        (WTF::makeUniqueRef):

2019-08-18  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] Add makeUnique<T>, which ensures T is fast-allocated, makeUnique / makeUniqueWithoutFastMallocCheck part
        https://bugs.webkit.org/show_bug.cgi?id=200620

        Reviewed by Geoff Garen.

        This patch is second part of bug 200620 patch. I split I split it into three pieces to make roll-out easy.
        his part, we convert std::make_unique to WTF::makeUnique or WTF::makeUniqueWithoutFastMallocCheck.
        In the third patch, we will add a static_assert to makeUnique, which ensures the given class T is FastMalloced or IsoHeaped.

        This patch adds `WTF::makeUnique<T>` and `WTF::makeUniqueWithoutFastMallocCheck<T>` as drop-in replacement for `std::make_unique<T>`.
        `WTF::makeUnique<T>` has one additional `static_assert` check which ensures `T` FastMalloc / IsoHeap annotated. If it is not, the
        compile error happens.

        In this patch, I tried using this everywhere in WebKit as much as possible. And we found that surprisingly many classes are missing
        FastMalloc annotation and allocated from system-malloc. Using WTF::makeUnique enforces classes / structs to use FastMalloc.

        WTF::makeUniqueWithoutFastMallocCheck is offered for the corner cases. This is identical to std::make_unique. We use this for classes
        that are offered by non-WebKit code base, like, zlib. This clear name can make us easily find this allocation is intentionally done
        by system-malloc.

        We do not take the following direction, `WTF::makeUnique` automatically allocates FastMalloc even if FastMalloc annotation is not attached.
        Since default deleter is performing `delete` and this is not what we want for FastMalloced ones, we need to return
        std::unique_ptr<T, FastFreeDeleter> for T if T does not have FastMalloc-annotation. Automatically doing this sounds a bit dangerous.

            auto pointer = WTF::makeUnique<T>();
            // Super dangerous, but sometimes it is required...
            auto* rawPointer = pointer.release();
            // Passing rawPointer to somewhere, and
            delete rawPointer;

        The above one becomes invalid because pointer may start requiring non `delete` destroying function.
        In the above case, the correct way becomes the following.

            rawPointer->~T();
            fastFree(rawPointer);

        This looks non-intuitive. And having two ways to destroying objects (`delete` or the above one) can be error-prone.
        If we have WTF_MAKE_FAST_ALLOCATED for T, we do not need to care about this. "new" and "delete" operators are defined, and C++ way works.
        The simple invariant, "makeUnique just does `new` internally. And `delete` operator does `delete`. default deleter is just doing `delete`", is kept.

        While we need to annotate many classes with WTF_MAKE_FAST_ALLOCATED, it is one time cost when we add a class.
        And, by introducing `WTF::makeUnique<>`, we no longer forget adding this.

            makeUnique(...)
            static_assert(T is FastMalloced or IsoHeaped);
            return make_unique<T>(...)

        * benchmarks/LockFairnessTest.cpp:
        * benchmarks/LockSpeedTest.cpp:
        * wtf/ConcurrentVector.h:
        * wtf/CrossThreadTaskHandler.cpp:
        (WTF::CrossThreadTaskHandler::taskRunLoop):
        * wtf/FilePrintStream.cpp:
        (WTF::FilePrintStream::open):
        * wtf/Function.h:
        (WTF::Function<Out):
        * wtf/HashTable.h:
        (WTF::KeyTraits>::HashTable):
        * wtf/MemoryPressureHandler.cpp:
        (WTF::MemoryPressureHandler::setShouldUsePeriodicMemoryMonitor):
        * wtf/StdLibExtras.h:
        (WTF::makeUnique):
        (WTF::makeUniqueWithoutFastMallocCheck):
        * wtf/StreamBuffer.h:
        (WTF::StreamBuffer::append):
        * wtf/UniqueRef.h:
        (WTF::makeUniqueRefWithoutFastMallocCheck):
        (WTF::makeUniqueRef):
        * wtf/glib/RunLoopGLib.cpp:
        (WTF::RunLoop::dispatchAfter):
        * wtf/text/StringView.cpp:
        (WTF::StringView::GraphemeClusters::Iterator::Iterator):

2019-08-18  Per Arne Vollan  <pvollan@apple.com>

        [Mac] Use the PID of the WebContent process when issuing local file read sandbox extensions
        https://bugs.webkit.org/show_bug.cgi?id=200543
        <rdar://problem/49394015>

        Reviewed by Brent Fulgham.

        Add new SPI.
        
        * wtf/Platform.h:
        * wtf/spi/darwin/SandboxSPI.h:

2019-08-17  Darin Adler  <darin@apple.com>

        Tidy up checks to see if a character is in the Latin-1 range by using isLatin1 consistently
        https://bugs.webkit.org/show_bug.cgi?id=200861

        Reviewed by Ross Kirsling.

        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::appendCharacters): Use isLatin1 and also call append rather than
        calling appendCharacters, since it's the same thing, inlined, and removes the need for
        a local variable. Also tweaked the idiom of the code using memcpy.
        (WTF::StringBuilder::canShrink const): Reworded a comment.

        * wtf/text/StringBuilder.h:
        (WTF::StringBuilder::append): Use isLatin1.

        * wtf/text/StringCommon.h:
        (WTF::isLatin1): Moved this function template here so it can be used here.
        (WTF::find): Use isLatin1.

        * wtf/text/StringImpl.h:
        (WTF::isLatin1): Deleted. Moved to StringCommon.h.
        (WTF::reverseFind): Use isLatin1.
        (WTF::isSpaceOrNewline): Ditto.

2019-08-17  Eric Liang  <ericliang@apple.com>

        Added HAVE_ACCESSIBILITY_BUNDLES_PATH
        https://bugs.webkit.org/show_bug.cgi?id=200367

        Reviewed by Darin Adler.

        * wtf/Platform.h:

2019-08-17  Sam Weinig  <weinig@apple.com>

        Rename StringBuilder::flexibleAppend(...) to StringBuilder::append(...)
        https://bugs.webkit.org/show_bug.cgi?id=200756

        Reviewed by Darin Adler.

        Now that there are no remaining multi-parameter or behavior changing overloads
        of StringBuilder::append(...), we can rename StringBuilder::flexibleAppend(...)
        to StringBuilder::append(...).
        
        This change leaves the existing single parameter overloads StringBuilder::append(...)
        for now, and since they have specify specific types, they will continue to be prefered
        in overload resolution. Once we have concluded the variadic StringBuilder::append(...)
        can provide the same performance as the single parameter variant, we can remove the
        single parameter variant.

        * wtf/posix/FileSystemPOSIX.cpp:
        (WTF::FileSystemImpl::pathByAppendingComponents):
        * wtf/text/StringBuilder.h:
        (WTF::StringBuilder::appendFromAdapters):
        (WTF::StringBuilder::append):
        (WTF::StringBuilder::flexibleAppendFromAdapters): Deleted.
        (WTF::StringBuilder::flexibleAppend): Deleted.
        Update for rename from StringBuilder::flexibleAppend(...) to StringBuilder::append(...).

2019-08-15  Ryosuke Niwa  <rniwa@webkit.org>

        Don't use union to store NodeRareData* and RenderObject*
        https://bugs.webkit.org/show_bug.cgi?id=200744

        Reviewed by Antti Koivisto.

        Moved the static assert which requires the type of the object to which the pointer type points
        into setPointer so that we can use CompactPointerTuple<T*, U> as a member variable
        with just a forward declaration of T.

        * wtf/CompactPointerTuple.h:
        (WTF::CompactPointerTuple::setPointer):

2019-08-15  Zalan Bujtas  <zalan@apple.com>

        [ContentChangeObserver] Keep track of all the visibility candidates.
        https://bugs.webkit.org/show_bug.cgi?id=200777
        <rdar://problem/54356331>

        Reviewed by Simon Fraser.

        * wtf/WeakHashSet.h:

2019-08-15  Brent Fulgham  <bfulgham@apple.com>

        [FTW] Enable CoreFoundation use if building for Apple target
        https://bugs.webkit.org/show_bug.cgi?id=200799

        Reviewed by Alex Christensen.

        * wtf/PlatformFTW.cmake: Add missing files.

2019-08-15  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r248440.
        https://bugs.webkit.org/show_bug.cgi?id=200772

        Introduced regressions related to loading of local files.
        (Requested by perarne on #webkit).

        Reverted changeset:

        "[Mac] Use the PID of the WebContent process when issuing
        local file read sandbox extensions"
        https://bugs.webkit.org/show_bug.cgi?id=200543
        https://trac.webkit.org/changeset/248440

2019-08-14  Kate Cheney  <katherine_cheney@apple.com>

        FileSystem::deleteFile should log error status (178347)
        https://bugs.webkit.org/show_bug.cgi?id=178347

        Reviewed by Brent Fulgham.

        I added logging to the FileSystem::deleteFile function so that the debugger will
        be able to see the associated errno string and better understand the reason for an
        unlink failure or will know if the fileSystemRepresentation call was not
        successful (or returned null).

        * wtf/posix/FileSystemPOSIX.cpp:
        (WTF::FileSystemImpl::deleteFile):

2019-08-14  Keith Rollin  <krollin@apple.com>

        Remove support for macOS < 10.13
        https://bugs.webkit.org/show_bug.cgi?id=200694
        <rdar://problem/54278851>

        Reviewed by Youenn Fablet.

        Update conditionals that reference __MAC_OS_X_VERSION_MIN_REQUIRED and
        __MAC_OS_X_VERSION_MAX_ALLOWED, assuming that they both have values >=
        101300. This means that expressions like
        "__MAC_OS_X_VERSION_MIN_REQUIRED < 101300" are always False and
        "__MAC_OS_X_VERSION_MIN_REQUIRED >= 101300" are always True.

        * wtf/FeatureDefines.h:
        * wtf/Platform.h:
        * wtf/mac/AppKitCompatibilityDeclarations.h:
        * wtf/spi/darwin/SandboxSPI.h:

2019-08-14  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Less contended MetaAllocator
        https://bugs.webkit.org/show_bug.cgi?id=200278

        Reviewed by Mark Lam.

        * wtf/MetaAllocator.cpp:
        (WTF::MetaAllocator::incrementPageOccupancy):
        (WTF::MetaAllocator::decrementPageOccupancy):
        * wtf/MetaAllocator.h:

2019-08-14  Samuel Groß  <saelo@google.com>

        [JSCOnly] JSCOnly port doesn't build on macOS
        https://bugs.webkit.org/show_bug.cgi?id=200667

        spi/darwin/ProcessMemoryFootprint.h is required by jsc.cpp so we add it to the WTF_PUBLIC_HEADERS.

        Reviewed by Alex Christensen.

        * wtf/PlatformJSCOnly.cmake:
        * wtf/PlatformMac.cmake:

2019-08-13  Sam Weinig  <weinig@apple.com>

        Rename StringBuilder::append(UChar32) to StringBuilder::appendCharacter(UChar32) to avoid accidental change in behavior when replacing append with flexibleAppend
        https://bugs.webkit.org/show_bug.cgi?id=200675

        Reviewed by Darin Adler.

        When we switch StringBuilder::append(...) to be based on the StringConcatenate/makeString flexibleAppend 
        implementation, if we don't change anything, the behavior of StringBuilder::append(UChar32) will go from 
        appending a character to appending a stringified number.

        To work around this, we can rename StringBuilder::append(UChar32) to StringBuilder::appendCharacter(UChar32) 
        and update all the call sites.

        * wtf/text/StringBuilder.h:
        (WTF::StringBuilder::appendCharacter):
        Renamed StringBuilder::append(UChar32) to StringBuilder::appendCharacter(UChar32).

        * wtf/FileSystem.cpp:
        (WTF::FileSystemImpl::decodeFromFilename):
        Update for new name.

2019-08-13  Yusuke Suzuki  <ysuzuki@apple.com>

        Unreviewed, build fix for Windows
        https://bugs.webkit.org/show_bug.cgi?id=200611

        * wtf/win/GDIObject.h:

2019-08-12  Takashi Komori  <Takashi.Komori@sony.com>

        [WTF] Thread::removeFromThreadGroup leaks weak pointers.
        https://bugs.webkit.org/show_bug.cgi?id=199857

        Reviewed by Yusuke Suzuki.

        Fix leaking of ThreadGroup's weak pointers.

        Tests: WTF.ThreadGroupRemove API tests

        * wtf/Threading.cpp:
        (WTF::Thread::didExit):
        (WTF::Thread::addToThreadGroup):
        (WTF::Thread::removeFromThreadGroup):
        (WTF::Thread::numberOfThreadGroups):
        * wtf/Threading.h:

2019-08-12  Sam Weinig  <weinig@apple.com>

        Replace multiparameter overloads of append() in StringBuilder as a first step toward standardizinging on the flexibleAppend() implementation
        https://bugs.webkit.org/show_bug.cgi?id=200614

        Reviewed by Darin Adler.

        Renames StringBuilder::append(const LChar*, unsigned), StringBuilder::append(const UChar*, unsigned) and 
        StringBuilder::append(const char*, unsigned) to StringBuilder::appendCharacters(...).
        
        Renames StringBuilder::append(const String& string, unsigned offset, unsigned length) to 
        StringBuilder::appendSubstring(...).

        * wtf/HexNumber.h:
        (WTF::appendUnsignedAsHexFixedSize):
        Add overload that explicitly takes a StringBuilder to work around rename from append to appendCharacters.

        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::appendCharacters):
        (WTF::StringBuilder::append):
        * wtf/text/StringBuilder.h:
        (WTF::StringBuilder::appendCharacters):
        (WTF::StringBuilder::append):
        (WTF::StringBuilder::appendSubstring):
        (WTF::StringBuilder::appendLiteral):
        (WTF::IntegerToStringConversionTrait<StringBuilder>::flush):
        Update for renames.

2019-08-12  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF][JSC] Make JSC and WTF aggressively-fast-malloced
        https://bugs.webkit.org/show_bug.cgi?id=200611

        Reviewed by Saam Barati.

        WTF has many data structures, in particular, containers. And these containers can be allocated like `std::make_unique<Container>()`.
        Without WTF_MAKE_FAST_ALLOCATED, this container itself is allocated from the system malloc. This patch attaches WTF_MAKE_FAST_ALLOCATED
        more aggressively not to allocate them from the system malloc. And we add some `final` to containers and classes that would be never inherited.

        * wtf/Assertions.cpp:
        * wtf/Atomics.h:
        * wtf/AutodrainedPool.h:
        * wtf/Bag.h:
        (WTF::Bag::Bag): Deleted.
        (WTF::Bag::~Bag): Deleted.
        (WTF::Bag::clear): Deleted.
        (WTF::Bag::add): Deleted.
        (WTF::Bag::iterator::iterator): Deleted.
        (WTF::Bag::iterator::operator! const): Deleted.
        (WTF::Bag::iterator::operator* const): Deleted.
        (WTF::Bag::iterator::operator++): Deleted.
        (WTF::Bag::iterator::operator== const): Deleted.
        (WTF::Bag::iterator::operator!= const): Deleted.
        (WTF::Bag::begin): Deleted.
        (WTF::Bag::begin const): Deleted.
        (WTF::Bag::end const): Deleted.
        (WTF::Bag::isEmpty const): Deleted.
        (WTF::Bag::unwrappedHead const): Deleted.
        * wtf/BitVector.h:
        (WTF::BitVector::BitVector): Deleted.
        (WTF::BitVector::~BitVector): Deleted.
        (WTF::BitVector::operator=): Deleted.
        (WTF::BitVector::size const): Deleted.
        (WTF::BitVector::ensureSize): Deleted.
        (WTF::BitVector::quickGet const): Deleted.
        (WTF::BitVector::quickSet): Deleted.
        (WTF::BitVector::quickClear): Deleted.
        (WTF::BitVector::get const): Deleted.
        (WTF::BitVector::contains const): Deleted.
        (WTF::BitVector::set): Deleted.
        (WTF::BitVector::add): Deleted.
        (WTF::BitVector::ensureSizeAndSet): Deleted.
        (WTF::BitVector::clear): Deleted.
        (WTF::BitVector::remove): Deleted.
        (WTF::BitVector::merge): Deleted.
        (WTF::BitVector::filter): Deleted.
        (WTF::BitVector::exclude): Deleted.
        (WTF::BitVector::bitCount const): Deleted.
        (WTF::BitVector::isEmpty const): Deleted.
        (WTF::BitVector::findBit const): Deleted.
        (WTF::BitVector::isEmptyValue const): Deleted.
        (WTF::BitVector::isDeletedValue const): Deleted.
        (WTF::BitVector::isEmptyOrDeletedValue const): Deleted.
        (WTF::BitVector::operator== const): Deleted.
        (WTF::BitVector::hash const): Deleted.
        (WTF::BitVector::iterator::iterator): Deleted.
        (WTF::BitVector::iterator::operator* const): Deleted.
        (WTF::BitVector::iterator::operator++): Deleted.
        (WTF::BitVector::iterator::isAtEnd const): Deleted.
        (WTF::BitVector::iterator::operator== const): Deleted.
        (WTF::BitVector::iterator::operator!= const): Deleted.
        (WTF::BitVector::begin const): Deleted.
        (WTF::BitVector::end const): Deleted.
        (WTF::BitVector::bitsInPointer): Deleted.
        (WTF::BitVector::maxInlineBits): Deleted.
        (WTF::BitVector::byteCount): Deleted.
        (WTF::BitVector::makeInlineBits): Deleted.
        (WTF::BitVector::cleanseInlineBits): Deleted.
        (WTF::BitVector::bitCount): Deleted.
        (WTF::BitVector::findBitFast const): Deleted.
        (WTF::BitVector::findBitSimple const): Deleted.
        (WTF::BitVector::OutOfLineBits::numBits const): Deleted.
        (WTF::BitVector::OutOfLineBits::numWords const): Deleted.
        (WTF::BitVector::OutOfLineBits::bits): Deleted.
        (WTF::BitVector::OutOfLineBits::bits const): Deleted.
        (WTF::BitVector::OutOfLineBits::OutOfLineBits): Deleted.
        (WTF::BitVector::isInline const): Deleted.
        (WTF::BitVector::outOfLineBits const): Deleted.
        (WTF::BitVector::outOfLineBits): Deleted.
        (WTF::BitVector::bits): Deleted.
        (WTF::BitVector::bits const): Deleted.
        * wtf/Bitmap.h:
        (WTF::Bitmap::size): Deleted.
        (WTF::Bitmap::iterator::iterator): Deleted.
        (WTF::Bitmap::iterator::operator* const): Deleted.
        (WTF::Bitmap::iterator::operator++): Deleted.
        (WTF::Bitmap::iterator::operator== const): Deleted.
        (WTF::Bitmap::iterator::operator!= const): Deleted.
        (WTF::Bitmap::begin const): Deleted.
        (WTF::Bitmap::end const): Deleted.
        * wtf/Box.h:
        * wtf/BumpPointerAllocator.h:
        * wtf/CPUTime.h:
        * wtf/CheckedBoolean.h:
        * wtf/CommaPrinter.h:
        (WTF::CommaPrinter::CommaPrinter): Deleted.
        (WTF::CommaPrinter::dump const): Deleted.
        (WTF::CommaPrinter::didPrint const): Deleted.
        * wtf/CompactPointerTuple.h:
        (WTF::CompactPointerTuple::encodeType): Deleted.
        (WTF::CompactPointerTuple::decodeType): Deleted.
        (WTF::CompactPointerTuple::CompactPointerTuple): Deleted.
        (WTF::CompactPointerTuple::pointer const): Deleted.
        (WTF::CompactPointerTuple::setPointer): Deleted.
        (WTF::CompactPointerTuple::type const): Deleted.
        (WTF::CompactPointerTuple::setType): Deleted.
        * wtf/CompilationThread.h:
        (WTF::CompilationScope::CompilationScope): Deleted.
        (WTF::CompilationScope::~CompilationScope): Deleted.
        (WTF::CompilationScope::leaveEarly): Deleted.
        * wtf/CompletionHandler.h:
        (WTF::CompletionHandler<Out):
        (WTF::Detail::CallableWrapper<CompletionHandler<Out):
        (WTF::CompletionHandlerCallingScope::CompletionHandlerCallingScope): Deleted.
        (WTF::CompletionHandlerCallingScope::~CompletionHandlerCallingScope): Deleted.
        (WTF::CompletionHandlerCallingScope::CompletionHandler<void): Deleted.
        * wtf/ConcurrentBuffer.h:
        (WTF::ConcurrentBuffer::ConcurrentBuffer): Deleted.
        (WTF::ConcurrentBuffer::~ConcurrentBuffer): Deleted.
        (WTF::ConcurrentBuffer::growExact): Deleted.
        (WTF::ConcurrentBuffer::grow): Deleted.
        (WTF::ConcurrentBuffer::array const): Deleted.
        (WTF::ConcurrentBuffer::operator[]): Deleted.
        (WTF::ConcurrentBuffer::operator[] const): Deleted.
        (WTF::ConcurrentBuffer::createArray): Deleted.
        * wtf/ConcurrentPtrHashSet.h:
        (WTF::ConcurrentPtrHashSet::contains): Deleted.
        (WTF::ConcurrentPtrHashSet::add): Deleted.
        (WTF::ConcurrentPtrHashSet::size const): Deleted.
        (WTF::ConcurrentPtrHashSet::Table::maxLoad const): Deleted.
        (WTF::ConcurrentPtrHashSet::hash): Deleted.
        (WTF::ConcurrentPtrHashSet::cast): Deleted.
        (WTF::ConcurrentPtrHashSet::containsImpl const): Deleted.
        (WTF::ConcurrentPtrHashSet::addImpl): Deleted.
        * wtf/ConcurrentVector.h:
        (WTF::ConcurrentVector::~ConcurrentVector): Deleted.
        (WTF::ConcurrentVector::size const): Deleted.
        (WTF::ConcurrentVector::isEmpty const): Deleted.
        (WTF::ConcurrentVector::at): Deleted.
        (WTF::ConcurrentVector::at const): Deleted.
        (WTF::ConcurrentVector::operator[]): Deleted.
        (WTF::ConcurrentVector::operator[] const): Deleted.
        (WTF::ConcurrentVector::first): Deleted.
        (WTF::ConcurrentVector::first const): Deleted.
        (WTF::ConcurrentVector::last): Deleted.
        (WTF::ConcurrentVector::last const): Deleted.
        (WTF::ConcurrentVector::takeLast): Deleted.
        (WTF::ConcurrentVector::append): Deleted.
        (WTF::ConcurrentVector::alloc): Deleted.
        (WTF::ConcurrentVector::removeLast): Deleted.
        (WTF::ConcurrentVector::grow): Deleted.
        (WTF::ConcurrentVector::begin): Deleted.
        (WTF::ConcurrentVector::end): Deleted.
        (WTF::ConcurrentVector::segmentExistsFor): Deleted.
        (WTF::ConcurrentVector::segmentFor): Deleted.
        (WTF::ConcurrentVector::subscriptFor): Deleted.
        (WTF::ConcurrentVector::ensureSegmentsFor): Deleted.
        (WTF::ConcurrentVector::ensureSegment): Deleted.
        (WTF::ConcurrentVector::allocateSegment): Deleted.
        * wtf/Condition.h:
        (WTF::Condition::waitUntil): Deleted.
        (WTF::Condition::waitFor): Deleted.
        (WTF::Condition::wait): Deleted.
        (WTF::Condition::notifyOne): Deleted.
        (WTF::Condition::notifyAll): Deleted.
        * wtf/CountingLock.h:
        (WTF::CountingLock::LockHooks::lockHook): Deleted.
        (WTF::CountingLock::LockHooks::unlockHook): Deleted.
        (WTF::CountingLock::LockHooks::parkHook): Deleted.
        (WTF::CountingLock::LockHooks::handoffHook): Deleted.
        (WTF::CountingLock::tryLock): Deleted.
        (WTF::CountingLock::lock): Deleted.
        (WTF::CountingLock::unlock): Deleted.
        (WTF::CountingLock::isHeld const): Deleted.
        (WTF::CountingLock::isLocked const): Deleted.
        (WTF::CountingLock::Count::operator bool const): Deleted.
        (WTF::CountingLock::Count::operator== const): Deleted.
        (WTF::CountingLock::Count::operator!= const): Deleted.
        (WTF::CountingLock::tryOptimisticRead): Deleted.
        (WTF::CountingLock::validate): Deleted.
        (WTF::CountingLock::doOptimizedRead): Deleted.
        (WTF::CountingLock::tryOptimisticFencelessRead): Deleted.
        (WTF::CountingLock::fencelessValidate): Deleted.
        (WTF::CountingLock::doOptimizedFencelessRead): Deleted.
        (WTF::CountingLock::getCount): Deleted.
        * wtf/CrossThreadQueue.h:
        * wtf/CrossThreadTask.h:
        * wtf/CryptographicallyRandomNumber.cpp:
        * wtf/DataMutex.h:
        * wtf/DateMath.h:
        * wtf/Deque.h:
        (WTF::Deque::size const): Deleted.
        (WTF::Deque::isEmpty const): Deleted.
        (WTF::Deque::begin): Deleted.
        (WTF::Deque::end): Deleted.
        (WTF::Deque::begin const): Deleted.
        (WTF::Deque::end const): Deleted.
        (WTF::Deque::rbegin): Deleted.
        (WTF::Deque::rend): Deleted.
        (WTF::Deque::rbegin const): Deleted.
        (WTF::Deque::rend const): Deleted.
        (WTF::Deque::first): Deleted.
        (WTF::Deque::first const): Deleted.
        (WTF::Deque::last): Deleted.
        (WTF::Deque::last const): Deleted.
        (WTF::Deque::append): Deleted.
        * wtf/Dominators.h:
        * wtf/DoublyLinkedList.h:
        * wtf/Expected.h:
        * wtf/FastBitVector.h:
        * wtf/FileMetadata.h:
        * wtf/FileSystem.h:
        * wtf/GraphNodeWorklist.h:
        * wtf/GregorianDateTime.h:
        (WTF::GregorianDateTime::GregorianDateTime): Deleted.
        (WTF::GregorianDateTime::year const): Deleted.
        (WTF::GregorianDateTime::month const): Deleted.
        (WTF::GregorianDateTime::yearDay const): Deleted.
        (WTF::GregorianDateTime::monthDay const): Deleted.
        (WTF::GregorianDateTime::weekDay const): Deleted.
        (WTF::GregorianDateTime::hour const): Deleted.
        (WTF::GregorianDateTime::minute const): Deleted.
        (WTF::GregorianDateTime::second const): Deleted.
        (WTF::GregorianDateTime::utcOffset const): Deleted.
        (WTF::GregorianDateTime::isDST const): Deleted.
        (WTF::GregorianDateTime::setYear): Deleted.
        (WTF::GregorianDateTime::setMonth): Deleted.
        (WTF::GregorianDateTime::setYearDay): Deleted.
        (WTF::GregorianDateTime::setMonthDay): Deleted.
        (WTF::GregorianDateTime::setWeekDay): Deleted.
        (WTF::GregorianDateTime::setHour): Deleted.
        (WTF::GregorianDateTime::setMinute): Deleted.
        (WTF::GregorianDateTime::setSecond): Deleted.
        (WTF::GregorianDateTime::setUtcOffset): Deleted.
        (WTF::GregorianDateTime::setIsDST): Deleted.
        (WTF::GregorianDateTime::operator tm const): Deleted.
        (WTF::GregorianDateTime::copyFrom): Deleted.
        * wtf/HashTable.h:
        * wtf/Hasher.h:
        * wtf/HexNumber.h:
        * wtf/Indenter.h:
        * wtf/IndexMap.h:
        * wtf/IndexSet.h:
        * wtf/IndexSparseSet.h:
        * wtf/IndexedContainerIterator.h:
        * wtf/Insertion.h:
        * wtf/IteratorAdaptors.h:
        * wtf/IteratorRange.h:
        * wtf/KeyValuePair.h:
        * wtf/ListHashSet.h:
        (WTF::ListHashSet::begin): Deleted.
        (WTF::ListHashSet::end): Deleted.
        (WTF::ListHashSet::begin const): Deleted.
        (WTF::ListHashSet::end const): Deleted.
        (WTF::ListHashSet::random): Deleted.
        (WTF::ListHashSet::random const): Deleted.
        (WTF::ListHashSet::rbegin): Deleted.
        (WTF::ListHashSet::rend): Deleted.
        (WTF::ListHashSet::rbegin const): Deleted.
        (WTF::ListHashSet::rend const): Deleted.
        * wtf/Liveness.h:
        * wtf/LocklessBag.h:
        (WTF::LocklessBag::LocklessBag): Deleted.
        (WTF::LocklessBag::add): Deleted.
        (WTF::LocklessBag::iterate): Deleted.
        (WTF::LocklessBag::consumeAll): Deleted.
        (WTF::LocklessBag::consumeAllWithNode): Deleted.
        (WTF::LocklessBag::~LocklessBag): Deleted.
        * wtf/LoggingHashID.h:
        * wtf/MD5.h:
        * wtf/MachSendRight.h:
        * wtf/MainThreadData.h:
        * wtf/Markable.h:
        * wtf/MediaTime.h:
        * wtf/MemoryPressureHandler.h:
        * wtf/MessageQueue.h:
        (WTF::MessageQueue::MessageQueue): Deleted.
        * wtf/MetaAllocator.h:
        * wtf/MonotonicTime.h:
        (WTF::MonotonicTime::MonotonicTime): Deleted.
        (WTF::MonotonicTime::fromRawSeconds): Deleted.
        (WTF::MonotonicTime::infinity): Deleted.
        (WTF::MonotonicTime::nan): Deleted.
        (WTF::MonotonicTime::secondsSinceEpoch const): Deleted.
        (WTF::MonotonicTime::approximateMonotonicTime const): Deleted.
        (WTF::MonotonicTime::operator bool const): Deleted.
        (WTF::MonotonicTime::operator+ const): Deleted.
        (WTF::MonotonicTime::operator- const): Deleted.
        (WTF::MonotonicTime::operator% const): Deleted.
        (WTF::MonotonicTime::operator+=): Deleted.
        (WTF::MonotonicTime::operator-=): Deleted.
        (WTF::MonotonicTime::operator== const): Deleted.
        (WTF::MonotonicTime::operator!= const): Deleted.
        (WTF::MonotonicTime::operator< const): Deleted.
        (WTF::MonotonicTime::operator> const): Deleted.
        (WTF::MonotonicTime::operator<= const): Deleted.
        (WTF::MonotonicTime::operator>= const): Deleted.
        (WTF::MonotonicTime::isolatedCopy const): Deleted.
        (WTF::MonotonicTime::encode const): Deleted.
        (WTF::MonotonicTime::decode): Deleted.
        * wtf/NaturalLoops.h:
        * wtf/NoLock.h:
        * wtf/OSAllocator.h:
        * wtf/OptionSet.h:
        * wtf/Optional.h:
        * wtf/OrderMaker.h:
        * wtf/Packed.h:
        (WTF::alignof):
        * wtf/PackedIntVector.h:
        (WTF::PackedIntVector::PackedIntVector): Deleted.
        (WTF::PackedIntVector::operator=): Deleted.
        (WTF::PackedIntVector::size const): Deleted.
        (WTF::PackedIntVector::ensureSize): Deleted.
        (WTF::PackedIntVector::resize): Deleted.
        (WTF::PackedIntVector::clearAll): Deleted.
        (WTF::PackedIntVector::get const): Deleted.
        (WTF::PackedIntVector::set): Deleted.
        (WTF::PackedIntVector::mask): Deleted.
        * wtf/PageBlock.h:
        * wtf/ParallelJobsOpenMP.h:
        * wtf/ParkingLot.h:
        * wtf/PriorityQueue.h:
        (WTF::PriorityQueue::size const): Deleted.
        (WTF::PriorityQueue::isEmpty const): Deleted.
        (WTF::PriorityQueue::enqueue): Deleted.
        (WTF::PriorityQueue::peek const): Deleted.
        (WTF::PriorityQueue::dequeue): Deleted.
        (WTF::PriorityQueue::decreaseKey): Deleted.
        (WTF::PriorityQueue::increaseKey): Deleted.
        (WTF::PriorityQueue::begin const): Deleted.
        (WTF::PriorityQueue::end const): Deleted.
        (WTF::PriorityQueue::isValidHeap const): Deleted.
        (WTF::PriorityQueue::parentOf): Deleted.
        (WTF::PriorityQueue::leftChildOf): Deleted.
        (WTF::PriorityQueue::rightChildOf): Deleted.
        (WTF::PriorityQueue::siftUp): Deleted.
        (WTF::PriorityQueue::siftDown): Deleted.
        * wtf/RandomDevice.h:
        * wtf/Range.h:
        * wtf/RangeSet.h:
        (WTF::RangeSet::RangeSet): Deleted.
        (WTF::RangeSet::~RangeSet): Deleted.
        (WTF::RangeSet::add): Deleted.
        (WTF::RangeSet::contains const): Deleted.
        (WTF::RangeSet::overlaps const): Deleted.
        (WTF::RangeSet::clear): Deleted.
        (WTF::RangeSet::dump const): Deleted.
        (WTF::RangeSet::dumpRaw const): Deleted.
        (WTF::RangeSet::begin const): Deleted.
        (WTF::RangeSet::end const): Deleted.
        (WTF::RangeSet::addAll): Deleted.
        (WTF::RangeSet::compact): Deleted.
        (WTF::RangeSet::overlapsNonEmpty): Deleted.
        (WTF::RangeSet::subsumesNonEmpty): Deleted.
        (WTF::RangeSet::findRange const): Deleted.
        * wtf/RecursableLambda.h:
        * wtf/RedBlackTree.h:
        (WTF::RedBlackTree::Node::successor const): Deleted.
        (WTF::RedBlackTree::Node::predecessor const): Deleted.
        (WTF::RedBlackTree::Node::successor): Deleted.
        (WTF::RedBlackTree::Node::predecessor): Deleted.
        (WTF::RedBlackTree::Node::reset): Deleted.
        (WTF::RedBlackTree::Node::parent const): Deleted.
        (WTF::RedBlackTree::Node::setParent): Deleted.
        (WTF::RedBlackTree::Node::left const): Deleted.
        (WTF::RedBlackTree::Node::setLeft): Deleted.
        (WTF::RedBlackTree::Node::right const): Deleted.
        (WTF::RedBlackTree::Node::setRight): Deleted.
        (WTF::RedBlackTree::Node::color const): Deleted.
        (WTF::RedBlackTree::Node::setColor): Deleted.
        (WTF::RedBlackTree::RedBlackTree): Deleted.
        (WTF::RedBlackTree::insert): Deleted.
        (WTF::RedBlackTree::remove): Deleted.
        (WTF::RedBlackTree::findExact const): Deleted.
        (WTF::RedBlackTree::findLeastGreaterThanOrEqual const): Deleted.
        (WTF::RedBlackTree::findGreatestLessThanOrEqual const): Deleted.
        (WTF::RedBlackTree::first const): Deleted.
        (WTF::RedBlackTree::last const): Deleted.
        (WTF::RedBlackTree::size): Deleted.
        (WTF::RedBlackTree::isEmpty): Deleted.
        (WTF::RedBlackTree::treeMinimum): Deleted.
        (WTF::RedBlackTree::treeMaximum): Deleted.
        (WTF::RedBlackTree::treeInsert): Deleted.
        (WTF::RedBlackTree::leftRotate): Deleted.
        (WTF::RedBlackTree::rightRotate): Deleted.
        (WTF::RedBlackTree::removeFixup): Deleted.
        * wtf/ResourceUsage.h:
        * wtf/RunLoop.cpp:
        * wtf/RunLoopTimer.h:
        * wtf/SHA1.h:
        * wtf/Seconds.h:
        (WTF::Seconds::Seconds): Deleted.
        (WTF::Seconds::value const): Deleted.
        (WTF::Seconds::minutes const): Deleted.
        (WTF::Seconds::seconds const): Deleted.
        (WTF::Seconds::milliseconds const): Deleted.
        (WTF::Seconds::microseconds const): Deleted.
        (WTF::Seconds::nanoseconds const): Deleted.
        (WTF::Seconds::minutesAs const): Deleted.
        (WTF::Seconds::secondsAs const): Deleted.
        (WTF::Seconds::millisecondsAs const): Deleted.
        (WTF::Seconds::microsecondsAs const): Deleted.
        (WTF::Seconds::nanosecondsAs const): Deleted.
        (WTF::Seconds::fromMinutes): Deleted.
        (WTF::Seconds::fromHours): Deleted.
        (WTF::Seconds::fromMilliseconds): Deleted.
        (WTF::Seconds::fromMicroseconds): Deleted.
        (WTF::Seconds::fromNanoseconds): Deleted.
        (WTF::Seconds::infinity): Deleted.
        (WTF::Seconds::nan): Deleted.
        (WTF::Seconds::operator bool const): Deleted.
        (WTF::Seconds::operator+ const): Deleted.
        (WTF::Seconds::operator- const): Deleted.
        (WTF::Seconds::operator* const): Deleted.
        (WTF::Seconds::operator/ const): Deleted.
        (WTF::Seconds::operator% const): Deleted.
        (WTF::Seconds::operator+=): Deleted.
        (WTF::Seconds::operator-=): Deleted.
        (WTF::Seconds::operator*=): Deleted.
        (WTF::Seconds::operator/=): Deleted.
        (WTF::Seconds::operator%=): Deleted.
        (WTF::Seconds::operator== const): Deleted.
        (WTF::Seconds::operator!= const): Deleted.
        (WTF::Seconds::operator< const): Deleted.
        (WTF::Seconds::operator> const): Deleted.
        (WTF::Seconds::operator<= const): Deleted.
        (WTF::Seconds::operator>= const): Deleted.
        (WTF::Seconds::isolatedCopy const): Deleted.
        (WTF::Seconds::encode const): Deleted.
        (WTF::Seconds::decode): Deleted.
        * wtf/SegmentedVector.h:
        (WTF::SegmentedVector::~SegmentedVector): Deleted.
        (WTF::SegmentedVector::size const): Deleted.
        (WTF::SegmentedVector::isEmpty const): Deleted.
        (WTF::SegmentedVector::at): Deleted.
        (WTF::SegmentedVector::at const): Deleted.
        (WTF::SegmentedVector::operator[]): Deleted.
        (WTF::SegmentedVector::operator[] const): Deleted.
        (WTF::SegmentedVector::first): Deleted.
        (WTF::SegmentedVector::first const): Deleted.
        (WTF::SegmentedVector::last): Deleted.
        (WTF::SegmentedVector::last const): Deleted.
        (WTF::SegmentedVector::takeLast): Deleted.
        (WTF::SegmentedVector::append): Deleted.
        (WTF::SegmentedVector::alloc): Deleted.
        (WTF::SegmentedVector::removeLast): Deleted.
        (WTF::SegmentedVector::grow): Deleted.
        (WTF::SegmentedVector::clear): Deleted.
        (WTF::SegmentedVector::begin): Deleted.
        (WTF::SegmentedVector::end): Deleted.
        (WTF::SegmentedVector::shrinkToFit): Deleted.
        (WTF::SegmentedVector::deleteAllSegments): Deleted.
        (WTF::SegmentedVector::segmentExistsFor): Deleted.
        (WTF::SegmentedVector::segmentFor): Deleted.
        (WTF::SegmentedVector::subscriptFor): Deleted.
        (WTF::SegmentedVector::ensureSegmentsFor): Deleted.
        (WTF::SegmentedVector::ensureSegment): Deleted.
        (WTF::SegmentedVector::allocateSegment): Deleted.
        * wtf/SetForScope.h:
        * wtf/SingleRootGraph.h:
        * wtf/SinglyLinkedList.h:
        * wtf/SmallPtrSet.h:
        * wtf/SpanningTree.h:
        * wtf/Spectrum.h:
        * wtf/StackBounds.h:
        * wtf/StackShot.h:
        * wtf/StackShotProfiler.h:
        * wtf/StackStats.h:
        * wtf/StackTrace.h:
        * wtf/StreamBuffer.h:
        * wtf/SynchronizedFixedQueue.h:
        (WTF::SynchronizedFixedQueue::create): Deleted.
        (WTF::SynchronizedFixedQueue::open): Deleted.
        (WTF::SynchronizedFixedQueue::close): Deleted.
        (WTF::SynchronizedFixedQueue::isOpen): Deleted.
        (WTF::SynchronizedFixedQueue::enqueue): Deleted.
        (WTF::SynchronizedFixedQueue::dequeue): Deleted.
        (WTF::SynchronizedFixedQueue::SynchronizedFixedQueue): Deleted.
        * wtf/SystemTracing.h:
        * wtf/ThreadGroup.h:
        (WTF::ThreadGroup::create): Deleted.
        (WTF::ThreadGroup::threads const): Deleted.
        (WTF::ThreadGroup::getLock): Deleted.
        (WTF::ThreadGroup::weakFromThis): Deleted.
        * wtf/ThreadSpecific.h:
        * wtf/ThreadingPrimitives.h:
        (WTF::Mutex::impl): Deleted.
        * wtf/TimeWithDynamicClockType.h:
        (WTF::TimeWithDynamicClockType::TimeWithDynamicClockType): Deleted.
        (WTF::TimeWithDynamicClockType::fromRawSeconds): Deleted.
        (WTF::TimeWithDynamicClockType::secondsSinceEpoch const): Deleted.
        (WTF::TimeWithDynamicClockType::clockType const): Deleted.
        (WTF::TimeWithDynamicClockType::withSameClockAndRawSeconds const): Deleted.
        (WTF::TimeWithDynamicClockType::operator bool const): Deleted.
        (WTF::TimeWithDynamicClockType::operator+ const): Deleted.
        (WTF::TimeWithDynamicClockType::operator- const): Deleted.
        (WTF::TimeWithDynamicClockType::operator+=): Deleted.
        (WTF::TimeWithDynamicClockType::operator-=): Deleted.
        (WTF::TimeWithDynamicClockType::operator== const): Deleted.
        (WTF::TimeWithDynamicClockType::operator!= const): Deleted.
        * wtf/TimingScope.h:
        * wtf/TinyLRUCache.h:
        * wtf/TinyPtrSet.h:
        * wtf/URLParser.cpp:
        * wtf/URLParser.h:
        * wtf/Unexpected.h:
        * wtf/Variant.h:
        * wtf/WTFSemaphore.h:
        (WTF::Semaphore::Semaphore): Deleted.
        (WTF::Semaphore::signal): Deleted.
        (WTF::Semaphore::waitUntil): Deleted.
        (WTF::Semaphore::waitFor): Deleted.
        (WTF::Semaphore::wait): Deleted.
        * wtf/WallTime.h:
        (WTF::WallTime::WallTime): Deleted.
        (WTF::WallTime::fromRawSeconds): Deleted.
        (WTF::WallTime::infinity): Deleted.
        (WTF::WallTime::nan): Deleted.
        (WTF::WallTime::secondsSinceEpoch const): Deleted.
        (WTF::WallTime::approximateWallTime const): Deleted.
        (WTF::WallTime::operator bool const): Deleted.
        (WTF::WallTime::operator+ const): Deleted.
        (WTF::WallTime::operator- const): Deleted.
        (WTF::WallTime::operator+=): Deleted.
        (WTF::WallTime::operator-=): Deleted.
        (WTF::WallTime::operator== const): Deleted.
        (WTF::WallTime::operator!= const): Deleted.
        (WTF::WallTime::operator< const): Deleted.
        (WTF::WallTime::operator> const): Deleted.
        (WTF::WallTime::operator<= const): Deleted.
        (WTF::WallTime::operator>= const): Deleted.
        (WTF::WallTime::isolatedCopy const): Deleted.
        * wtf/WeakHashSet.h:
        (WTF::WeakHashSet::WeakHashSetConstIterator::WeakHashSetConstIterator): Deleted.
        (WTF::WeakHashSet::WeakHashSetConstIterator::get const): Deleted.
        (WTF::WeakHashSet::WeakHashSetConstIterator::operator* const): Deleted.
        (WTF::WeakHashSet::WeakHashSetConstIterator::operator-> const): Deleted.
        (WTF::WeakHashSet::WeakHashSetConstIterator::operator++): Deleted.
        (WTF::WeakHashSet::WeakHashSetConstIterator::skipEmptyBuckets): Deleted.
        (WTF::WeakHashSet::WeakHashSetConstIterator::operator== const): Deleted.
        (WTF::WeakHashSet::WeakHashSetConstIterator::operator!= const): Deleted.
        (WTF::WeakHashSet::WeakHashSet): Deleted.
        (WTF::WeakHashSet::begin const): Deleted.
        (WTF::WeakHashSet::end const): Deleted.
        (WTF::WeakHashSet::add): Deleted.
        (WTF::WeakHashSet::remove): Deleted.
        (WTF::WeakHashSet::contains const): Deleted.
        (WTF::WeakHashSet::capacity const): Deleted.
        (WTF::WeakHashSet::computesEmpty const): Deleted.
        (WTF::WeakHashSet::hasNullReferences const): Deleted.
        (WTF::WeakHashSet::computeSize const): Deleted.
        (WTF::WeakHashSet::checkConsistency const): Deleted.
        * wtf/WeakRandom.h:
        (WTF::WeakRandom::WeakRandom): Deleted.
        (WTF::WeakRandom::setSeed): Deleted.
        (WTF::WeakRandom::seed const): Deleted.
        (WTF::WeakRandom::get): Deleted.
        (WTF::WeakRandom::getUint32): Deleted.
        (WTF::WeakRandom::lowOffset): Deleted.
        (WTF::WeakRandom::highOffset): Deleted.
        (WTF::WeakRandom::nextState): Deleted.
        (WTF::WeakRandom::generate): Deleted.
        (WTF::WeakRandom::advance): Deleted.
        * wtf/WordLock.h:
        (WTF::WordLock::lock): Deleted.
        (WTF::WordLock::unlock): Deleted.
        (WTF::WordLock::isHeld const): Deleted.
        (WTF::WordLock::isLocked const): Deleted.
        (WTF::WordLock::isFullyReset const): Deleted.
        * wtf/generic/MainThreadGeneric.cpp:
        * wtf/glib/GMutexLocker.h:
        * wtf/linux/CurrentProcessMemoryStatus.h:
        * wtf/posix/ThreadingPOSIX.cpp:
        (WTF::Semaphore::Semaphore): Deleted.
        (WTF::Semaphore::~Semaphore): Deleted.
        (WTF::Semaphore::wait): Deleted.
        (WTF::Semaphore::post): Deleted.
        * wtf/text/ASCIILiteral.h:
        (WTF::ASCIILiteral::operator const char* const): Deleted.
        (WTF::ASCIILiteral::fromLiteralUnsafe): Deleted.
        (WTF::ASCIILiteral::null): Deleted.
        (WTF::ASCIILiteral::characters const): Deleted.
        (WTF::ASCIILiteral::ASCIILiteral): Deleted.
        * wtf/text/AtomString.h:
        (WTF::AtomString::operator=): Deleted.
        (WTF::AtomString::isHashTableDeletedValue const): Deleted.
        (WTF::AtomString::existingHash const): Deleted.
        (WTF::AtomString::operator const String& const): Deleted.
        (WTF::AtomString::string const): Deleted.
        (WTF::AtomString::impl const): Deleted.
        (WTF::AtomString::is8Bit const): Deleted.
        (WTF::AtomString::characters8 const): Deleted.
        (WTF::AtomString::characters16 const): Deleted.
        (WTF::AtomString::length const): Deleted.
        (WTF::AtomString::operator[] const): Deleted.
        (WTF::AtomString::contains const): Deleted.
        (WTF::AtomString::containsIgnoringASCIICase const): Deleted.
        (WTF::AtomString::find const): Deleted.
        (WTF::AtomString::findIgnoringASCIICase const): Deleted.
        (WTF::AtomString::startsWith const): Deleted.
        (WTF::AtomString::startsWithIgnoringASCIICase const): Deleted.
        (WTF::AtomString::endsWith const): Deleted.
        (WTF::AtomString::endsWithIgnoringASCIICase const): Deleted.
        (WTF::AtomString::toInt const): Deleted.
        (WTF::AtomString::toDouble const): Deleted.
        (WTF::AtomString::toFloat const): Deleted.
        (WTF::AtomString::percentage const): Deleted.
        (WTF::AtomString::isNull const): Deleted.
        (WTF::AtomString::isEmpty const): Deleted.
        (WTF::AtomString::operator NSString * const): Deleted.
        * wtf/text/AtomStringImpl.h:
        (WTF::AtomStringImpl::lookUp): Deleted.
        (WTF::AtomStringImpl::add): Deleted.
        (WTF::AtomStringImpl::addWithStringTableProvider): Deleted.
        * wtf/text/CString.h:
        (WTF::CStringBuffer::data): Deleted.
        (WTF::CStringBuffer::length const): Deleted.
        (WTF::CStringBuffer::CStringBuffer): Deleted.
        (WTF::CStringBuffer::mutableData): Deleted.
        (WTF::CString::CString): Deleted.
        (WTF::CString::data const): Deleted.
        (WTF::CString::length const): Deleted.
        (WTF::CString::isNull const): Deleted.
        (WTF::CString::buffer const): Deleted.
        (WTF::CString::isHashTableDeletedValue const): Deleted.
        * wtf/text/ExternalStringImpl.h:
        (WTF::ExternalStringImpl::freeExternalBuffer): Deleted.
        * wtf/text/LineBreakIteratorPoolICU.h:
        * wtf/text/NullTextBreakIterator.h:
        * wtf/text/OrdinalNumber.h:
        * wtf/text/StringBuffer.h:
        * wtf/text/StringBuilder.h:
        * wtf/text/StringConcatenateNumbers.h:
        * wtf/text/StringHasher.h:
        * wtf/text/StringImpl.h:
        * wtf/text/StringView.cpp:
        * wtf/text/StringView.h:
        (WTF::StringView::left const): Deleted.
        (WTF::StringView::right const): Deleted.
        (WTF::StringView::underlyingStringIsValid const): Deleted.
        (WTF::StringView::setUnderlyingString): Deleted.
        * wtf/text/SymbolImpl.h:
        (WTF::SymbolImpl::StaticSymbolImpl::StaticSymbolImpl): Deleted.
        (WTF::SymbolImpl::StaticSymbolImpl::operator SymbolImpl&): Deleted.
        (WTF::PrivateSymbolImpl::PrivateSymbolImpl): Deleted.
        (WTF::RegisteredSymbolImpl::symbolRegistry const): Deleted.
        (WTF::RegisteredSymbolImpl::clearSymbolRegistry): Deleted.
        (WTF::RegisteredSymbolImpl::RegisteredSymbolImpl): Deleted.
        * wtf/text/SymbolRegistry.h:
        * wtf/text/TextBreakIterator.h:
        * wtf/text/TextPosition.h:
        * wtf/text/TextStream.h:
        * wtf/text/WTFString.h:
        (WTF::String::swap): Deleted.
        (WTF::String::adopt): Deleted.
        (WTF::String::isNull const): Deleted.
        (WTF::String::isEmpty const): Deleted.
        (WTF::String::impl const): Deleted.
        (WTF::String::releaseImpl): Deleted.
        (WTF::String::length const): Deleted.
        (WTF::String::characters8 const): Deleted.
        (WTF::String::characters16 const): Deleted.
        (WTF::String::is8Bit const): Deleted.
        (WTF::String::sizeInBytes const): Deleted.
        (WTF::String::operator[] const): Deleted.
        (WTF::String::find const): Deleted.
        (WTF::String::findIgnoringASCIICase const): Deleted.
        (WTF::String::reverseFind const): Deleted.
        (WTF::String::contains const): Deleted.
        (WTF::String::containsIgnoringASCIICase const): Deleted.
        (WTF::String::startsWith const): Deleted.
        (WTF::String::startsWithIgnoringASCIICase const): Deleted.
        (WTF::String::hasInfixStartingAt const): Deleted.
        (WTF::String::endsWith const): Deleted.
        (WTF::String::endsWithIgnoringASCIICase const): Deleted.
        (WTF::String::hasInfixEndingAt const): Deleted.
        (WTF::String::append): Deleted.
        (WTF::String::left const): Deleted.
        (WTF::String::right const): Deleted.
        (WTF::String::createUninitialized): Deleted.
        (WTF::String::fromUTF8WithLatin1Fallback): Deleted.
        (WTF::String::isAllASCII const): Deleted.
        (WTF::String::isAllLatin1 const): Deleted.
        (WTF::String::isSpecialCharacter const): Deleted.
        (WTF::String::isHashTableDeletedValue const): Deleted.
        (WTF::String::hash const): Deleted.
        (WTF::String::existingHash const): Deleted.
        * wtf/text/cf/TextBreakIteratorCF.h:
        * wtf/text/icu/TextBreakIteratorICU.h:
        * wtf/text/icu/UTextProviderLatin1.h:
        * wtf/threads/BinarySemaphore.h:
        (WTF::BinarySemaphore::waitFor): Deleted.
        (WTF::BinarySemaphore::wait): Deleted.
        * wtf/unicode/Collator.h:
        * wtf/win/GDIObject.h:
        * wtf/win/PathWalker.h:
        * wtf/win/Win32Handle.h:

2019-08-12  Chris Dumez  <cdumez@apple.com>

        Unreviewed, fix post landing review comments for r248533 from Darin.

        * wtf/RefCounted.h:
        (WTF::RefCountedBase::ref const):
        (WTF::RefCountedBase::applyRefDerefThreadingCheck const):
        (WTF::RefCountedBase::derefBase const):
        (WTF::RefCountedBase::areThreadingCheckedEnabled const): Deleted.

2019-08-12  Chris Dumez  <cdumez@apple.com>

        Add threading assertions to RefCounted
        https://bugs.webkit.org/show_bug.cgi?id=200507

        Reviewed by Ryosuke Niwa.

        Add threading assertions to RefCounted to try and catch unsafe concurrent ref'ing / derefing of
        RefCounted objects from several threads. If you hit these new assertions, it likely means you either
        need to:
        1. Have your class subclass ThreadSafeRefCounted instead of RefCounted
        or
        2. Make sure your objects always gets ref'd / deref'd from the same thread.

        These assertions already found several thread safety bugs in our code base, which I fixed via
        dependency bugs.

        These assertions are currently enabled in WebKit (UIProcess, child processes and
        WebKitLegacy), they do not apply other JavascriptCore API clients.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/RefCounted.cpp: Added.
        * wtf/RefCounted.h:
        (WTF::RefCountedBase::ref const):
        (WTF::RefCountedBase::disableThreadingChecks):
        (WTF::RefCountedBase::enableThreadingChecksGlobally):
        (WTF::RefCountedBase::RefCountedBase):
        (WTF::RefCountedBase::areThreadingCheckedEnabled const):
        (WTF::RefCountedBase::derefBase const):
        * wtf/SizeLimits.cpp:

2019-08-12  Chris Dumez  <cdumez@apple.com>

        Unreviewed, rolling out r248525.

        Revert new threading assertions while I work on fixing the
        issues they exposed

        Reverted changeset:

        "Add threading assertions to RefCounted"
        https://bugs.webkit.org/show_bug.cgi?id=200507
        https://trac.webkit.org/changeset/248525

2019-08-11  Chris Dumez  <cdumez@apple.com>

        Add threading assertions to RefCounted
        https://bugs.webkit.org/show_bug.cgi?id=200507

        Reviewed by Ryosuke Niwa.

        Add threading assertions to RefCounted to try and catch unsafe concurrent ref'ing / derefing of
        RefCounted objects from several threads. If you hit these new assertions, it likely means you either
        need to:
        1. Have your class subclass ThreadSafeRefCounted instead of RefCounted
        or
        2. Make sure your objects always gets ref'd / deref'd from the same thread.

        These assertions already found several thread safety bugs in our code base, which I fixed via
        dependency bugs.

        These assertions are currently enabled in WebKit (UIProcess, child processes and
        WebKitLegacy), they do not apply other JavascriptCore API clients.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/RefCounted.cpp: Added.
        * wtf/RefCounted.h:
        (WTF::RefCountedBase::ref const):
        (WTF::RefCountedBase::disableThreadingChecks):
        (WTF::RefCountedBase::enableThreadingChecksGlobally):
        (WTF::RefCountedBase::RefCountedBase):
        (WTF::RefCountedBase::areThreadingCheckedEnabled const):
        (WTF::RefCountedBase::derefBase const):
        * wtf/SizeLimits.cpp:

2019-08-09  Saam Barati  <sbarati@apple.com>

        [WHLSL] Devirtualize the AST
        https://bugs.webkit.org/show_bug.cgi?id=200522

        Reviewed by Robin Morisset.

        Make RefCounted use std::default_delete instead of explicitly calling delete.
        This allows uses of RefCounted to define their own custom deleter.

        * wtf/RefCounted.h:
        (WTF::RefCounted::deref const):
        * wtf/UniqueRef.h:
        (WTF::UniqueRef::UniqueRef):

2019-08-08  Chris Dumez  <cdumez@apple.com>

        Fix thread safety issue in AudioSampleDataSource() constructor
        https://bugs.webkit.org/show_bug.cgi?id=200547

        Reviewed by Alex Christensen.

        Make Logger ThreadSafeRefCounted as it is ref'd / deref'd from various
        threads (including the main thread and the WebKitWebRTCAudioModule thread).

        * wtf/Logger.h:

2019-08-08  Michael Saboff  <msaboff@apple.com>

        OpenSource MemoryFootprint API for JSC command line tool
        https://bugs.webkit.org/show_bug.cgi?id=200541

        Reviewed by Saam Barati.

        OpenSource version of WebKitAdditions/MemoryFootprint.h.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/spi/darwin/ProcessMemoryFootprint.h: Added.
        (ProcessMemoryFootprint::now):
        (ProcessMemoryFootprint::resetPeak):

2019-08-08  Per Arne Vollan  <pvollan@apple.com>

        [Mac] Use the PID of the WebContent process when issuing local file read sandbox extensions
        https://bugs.webkit.org/show_bug.cgi?id=200543
        <rdar://problem/49394015>

        Reviewed by Brent Fulgham.

        Add new SPI.

        * wtf/Platform.h:
        * wtf/spi/darwin/SandboxSPI.h:

2019-08-07  Chris Dumez  <cdumez@apple.com>

        Tighten WeakPtr threading assertions for GC threads
        https://bugs.webkit.org/show_bug.cgi?id=200451

        Reviewed by Youenn Fablet.

        Make sure our GC threads do not dereference WeakPtr for main thread
        objects by tightening our threading assertions in WeakPtr. They are
        still allowed to call WeakPtr::get() for now though.

        * wtf/WeakPtr.h:
        (WTF::WeakPtrImpl::get):
        (WTF::WeakPtrImpl::wasConstructedOnMainThread const):
        (WTF::WeakPtr::get const):
        (WTF::WeakPtr::operator-> const):
        (WTF::WeakPtr::operator* const):

2019-08-06  Jiewen Tan  <jiewen_tan@apple.com>

        Unreviewed, a build fix after r248308

        Use kSecUseDataProtectionKeychain for iOS 13 and macOS Catalina or newer.

        * wtf/Platform.h:

2019-08-06  Chris Dumez  <cdumez@apple.com>

        Fix inefficiency in HTTPHeaderMap::set(CFStringRef, const String&)
        https://bugs.webkit.org/show_bug.cgi?id=200475

        Reviewed by Darin Adler.

        Add convenience constuctor to StringView which takes in a const char*
        and an unsigned length, similarly to what we already have for String.

        * wtf/URL.cpp:
        (WTF::URL::protocolIs const):
        (WTF::protocolIsInternal):
        * wtf/text/StringView.h:
        (WTF::StringView::StringView):
        (WTF::StringView::empty):

2019-08-06  Jiewen Tan  <jiewen_tan@apple.com>

        [WebAuthN] Enable LocalAuthenticator for macOS
        https://bugs.webkit.org/show_bug.cgi?id=182772
        <rdar://problem/43347920>

        Reviewed by Brent Fulgham.

        * wtf/Platform.h:
        Adds HAVE_DEVICE_IDENTITY.
        * wtf/spi/cocoa/SecuritySPI.h:
        Adds a SPI for telling macOS keychain to use the modern one.

2019-08-06  Claudio Saavedra  <csaavedra@igalia.com>

        FileSystem: silent build warning

        Unreviewed compilation warning fix.

        Remove unused parameter in empty method
        * wtf/FileSystem.cpp:
        (WTF::FileSystemImpl::createTemporaryZipArchive):

2019-08-05  Youenn Fablet  <youenn@apple.com>

        Make Logger::log thread safe so that it can be used from background threads
        https://bugs.webkit.org/show_bug.cgi?id=200448

        Reviewed by Eric Carlson.

        Add a lock to ensure calling log is thread-safe.

        * wtf/Logger.h:
        (WTF::Logger::addObserver):
        (WTF::Logger::removeObserver):
        (WTF::Logger::log):
        (WTF::Logger::observerLock):

2019-08-05  Takashi Komori  <Takashi.Komori@sony.com>

        [Curl] implement CertificateInfo::summaryInfo
        https://bugs.webkit.org/show_bug.cgi?id=191498

        Reviewed by Alex Christensen.

        Fixed function template for encoding vector.

        * wtf/persistence/PersistentCoders.h:

2019-08-02  Mark Lam  <mark.lam@apple.com>

        [ARM64E] Harden the diversity of the DOMJIT::Signature::unsafeFunction pointer.
        https://bugs.webkit.org/show_bug.cgi?id=200292
        <rdar://problem/53706881>

        Reviewed by Geoffrey Garen.

        * wtf/PtrTag.h:
        - Introducing WTF_VTBL_FUNCPTR_PTRAUTH and WTF_VTBL_FUNCPTR_PTRAUTH_STR macros for
          defining vtbl function pointer style pointer signing modifier.

2019-08-02  Eric Carlson  <eric.carlson@apple.com>

        uniqueLogIdentifier() should generate a 64-bit identifier
        https://bugs.webkit.org/show_bug.cgi?id=200403
        <rdar://problem/53878447>

        Reviewed by Youenn Fablet.

        * wtf/LoggerHelper.h:
        (WTF::LoggerHelper::childLogIdentifier const): Use uint64_t masks.
        (WTF::LoggerHelper::uniqueLogIdentifier): cryptographicallyRandomNumber returns a
        uint32_t so use two to generate a 64-bit identifier.

2019-08-02  Alex Christensen  <achristensen@webkit.org>

        Fix an internal build after r248139
        https://bugs.webkit.org/show_bug.cgi?id=200102

        * wtf/cocoa/FileSystemCocoa.mm:
        Some internal builds couldn't find BOM framework headers.
        No problem.  They're not needed.  Just remove references to them.

2019-08-01  Alex Christensen  <achristensen@webkit.org>

        Move FormData zip file generation to NetworkProcess and enable it for all WebKit clients for uploading directories
        https://bugs.webkit.org/show_bug.cgi?id=200102
        <rdar://problem/53275114>

        Reviewed by Darin Adler.

        Move code from BlobDataFileReference::generateReplacementFile to FileSystem::createZipArchive.

        * wtf/FileSystem.cpp:
        (WTF::FileSystemImpl::createZipArchive):
        * wtf/FileSystem.h:
        * wtf/cocoa/FileSystemCocoa.mm:
        (WTF::FileSystemImpl::createZipArchive):

2019-08-01  Per Arne Vollan  <pvollan@apple.com>

        Initialize memory pressure flag in MemoryPressureHandler
        https://bugs.webkit.org/show_bug.cgi?id=200353

        Reviewed by Geoffrey Garen.

        The flag 'm_underMemoryPressure' in MemoryPressureHandler should be initialized to 'false'.

        * wtf/MemoryPressureHandler.h:

2019-08-01  Chris Dumez  <cdumez@apple.com>

        Add threading assertion to WeakPtr's operator->()
        https://bugs.webkit.org/show_bug.cgi?id=199922

        Reviewed by Ryosuke Niwa.

        Add threading assertion to WeakPtr's operator->() to make sure that the WeakPtr
        always gets dereferenced on the same thread it was constructed on.

        * wtf/WeakPtr.h:
        (WTF::WeakPtrImpl::get):
        (WTF::WeakPtrImpl::WeakPtrImpl):

2019-07-31  Youenn Fablet  <youenn@apple.com>

        Use CTFontCreateForCharactersWithLanguageAndOption if available instead of CTFontCreateForCharactersWithLanguage
        https://bugs.webkit.org/show_bug.cgi?id=200241

        Reviewed by Myles C. Maxfield.

        * wtf/Platform.h: Add macro to enable/disable new SPI.

2019-07-31  Keith Rollin  <krollin@apple.com>

        Fix 64-bit vs 32-bit mismatch in PersistentCoders.h
        https://bugs.webkit.org/show_bug.cgi?id=200288
        <rdar://problem/53734203>

        Reviewed by Chris Dumez.

        hashMapSize is declared as a uint64_t. It is passed to
        HashMapType::reserveInitialCapacity, which takes an unsigned int. This
        is a 32-bit value on 32-bit platforms, leading to a compile time
        error. Fix his by casting hashMapSize to the expected type.

        * wtf/persistence/PersistentCoders.h:

2019-07-31  Keith Rollin  <krollin@apple.com>

        Fix 64-bit vs 32-bit mismatch in LogArgument
        https://bugs.webkit.org/show_bug.cgi?id=200286
        <rdar://problem/53733671>

        Reviewed by Darin Adler.

        LogArgument is a utility for converting scalars into strings. It has a
        number of versions of a toString() method that is specialized for each
        type and converts the value to a string in a manner appropriate for
        that type. However, the versions of toString() for "long long" and
        "unsigned long long" are actually declared to take an "long" or
        "unsigned long" as a parameter. This difference leads to a 64-bit vs
        32-bit build error on 32-bit systems. Fix this by specifying
        correct/matching types.

        * wtf/Logger.h:
        (WTF::LogArgument::toString):

2019-07-30  Myles C. Maxfield  <mmaxfield@apple.com>

        REGRESSION(r241288): Text on Yahoo Japan mobile looks too bold
        https://bugs.webkit.org/show_bug.cgi?id=200065
        <rdar://problem/50912757>

        Reviewed by Simon Fraser.

        * wtf/Platform.h:

2019-07-30  Michael Catanzaro  <mcatanzaro@igalia.com>

        Fix CRASH_WITH_INFO() so that it doesn't complain about unused parameters on non Clang / MSVC compilers.
        https://bugs.webkit.org/show_bug.cgi?id=200243

        Reviewed by Mark Lam.

        For GCC, we'll implement WTFCrashWithInfo as a function rather than a macro. To use
        ##__VA_ARGS we would need to enable GNU extensions, and don't want to do that. The proper
        solution, format __VA_OPT__(,) __VA_ARGS__, requires C++20. So just use an inline function
        for now as a workaround.

        * wtf/Assertions.h:
        (CRASH_WITH_INFO):
        (CRASH_WITH_SECURITY_IMPLICATION_AND_INFO):

2019-07-25  Dean Jackson  <dino@apple.com>

        Add helper for ignoring deprecated implementation warnings
        https://bugs.webkit.org/show_bug.cgi?id=200135

        Reviewed by Wenson Hsieh.

        Add ALLOW_DEPRECATED_IMPLEMENTATIONS_BEGIN/END macro which
        is IGNORE_WARNINGS_BEGIN("deprecated-implementations")

        * wtf/Compiler.h:

2019-07-24  Yusuke Suzuki  <ysuzuki@apple.com>

        [bmalloc] Add IsoHeap test to ensure that IsoHeap pages are not allocating too large VA
        https://bugs.webkit.org/show_bug.cgi?id=200103

        Reviewed by Mark Lam.

        We move VMTag page investigation code from PAL to WTF to use it in TestWTF.
        And we also accumulate allocated VA size in `reserved` field of `TagInfo`.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/PlatformMac.cmake:
        * wtf/ResourceUsage.h: Added.
        * wtf/cocoa/MemoryPressureHandlerCocoa.mm:
        * wtf/cocoa/ResourceUsageCocoa.cpp: Added.
        (WTF::vmPageSize):
        (WTF::logFootprintComparison):
        (WTF::displayNameForVMTag):
        (WTF::pagesPerVMTag):
        * wtf/spi/cocoa/MachVMSPI.h: Added.

2019-07-23  Keith Miller  <keith_miller@apple.com>

        Add cheat sheet comment for HashMap/Set iterator/AddResult
        https://bugs.webkit.org/show_bug.cgi?id=200061

        Reviewed by Saam Barati.

        * wtf/HashMap.h:
        * wtf/HashSet.h:

2019-07-23  Keith Rollin  <krollin@apple.com>

        Remove rest of NavigatorContentUtils support
        https://bugs.webkit.org/show_bug.cgi?id=200052
        <rdar://problem/53467357>

        Reviewed by Alex Christensen.

        Bug 196070 removes most of the support for the never-used
        NavigatorContentUtils facility. However, there were still a couple of
        left-over references after that change. This patch sweeps those up.

        * wtf/FeatureDefines.h:

2019-07-23  Keith Rollin  <krollin@apple.com>

        Enable HAVE_APP_LINKS_WITH_ISENABLED for entire iOS family
        https://bugs.webkit.org/show_bug.cgi?id=200040
        <rdar://problem/53457670>

        Reviewed by Tim Horton.

        This feature was enabled for just iOS, but should be enabled for tvOS
        and watchOS, too.

        * wtf/Platform.h:

2019-07-23  Alicia Boya García  <aboya@igalia.com>

        [WTF] Add DataMutex and MainThreadData wrappers
        https://bugs.webkit.org/show_bug.cgi?id=199831

        Reviewed by Alex Christensen.

        This patch adds two new wrapper classes:

        DataMutex<T> stores an instance of T in a private member along with a
        mutex. In order to use its fields, users need to instantiate a
        DataMutex<T>::LockedWrapper instance in the stack. This class uses
        RAII to lock and unlock the mutex in construction and destruction
        respectively, and by using the arrow operator lets the user access T's
        members.

        This way, DataMutex<T> prevents most instances of accidental access to
        data fields that should only be read and modified in an atomic matter.

        Still, both the Lock and the LockHolder are exposed once the user has
        taken the lock so that special cases such as waiting for a condition
        variable or performing an early unlock are doable.

        MainThreadData<T> is another wrapper class, in this case for data
        fields that should only be accessed from the main thread. In this
        case, it works similar to a smart pointer, except that (1) there is no
        actual memory indirection, T is stored directly inside
        MainThreadData<T> and (2) attempts to use the -> or * operator have an
        isMainThread() assertion.

        Together, these two wrapper classes make it easier to write
        multi-threaded code in a safer, more self-documented way by letting
        the author group data into structures that have certain access safety
        requirements.

        These structures were originally part of the new GStreamer
        WebKitMediaSrc rework patch: https://bugs.webkit.org/show_bug.cgi?id=199719

        * wtf/CMakeLists.txt:
        * wtf/DataMutex.h: Added.
        (WTF::DataMutex::DataMutex):
        (WTF::DataMutex::LockedWrapper::LockedWrapper):
        (WTF::DataMutex::LockedWrapper::operator->):
        (WTF::DataMutex::LockedWrapper::operator*):
        (WTF::DataMutex::LockedWrapper::mutex):
        (WTF::DataMutex::LockedWrapper::lockHolder):
        * wtf/MainThreadData.h: Added.
        (WTF::MainThreadData::MainThreadData):
        (WTF::MainThreadData::operator->):
        (WTF::MainThreadData::operator*):

2019-07-22  Yusuke Suzuki  <ysuzuki@apple.com>

        [bmalloc] Each IsoPage gets 1MB VA because VMHeap::tryAllocateLargeChunk rounds up
        https://bugs.webkit.org/show_bug.cgi?id=200024

        Reviewed by Saam Barati.

        Start using a VM tag for IsoHeap instead of CLoop Stack.

        * wtf/OSAllocator.h:
        * wtf/VMTags.h:

2019-07-20  Chris Dumez  <cdumez@apple.com>

        Speed up HashTable decoding by reserving capacity and avoiding rehashing
        https://bugs.webkit.org/show_bug.cgi?id=199982

        Reviewed by Saam Barati.

        Introduce reserveInitialCapacity() on HashMap to reserve capacity on a
        HashMap and cut down on rehashing cost when possible.

        * wtf/HashMap.h:
        * wtf/HashTable.h:
        (WTF::HashTable::reserveInitialCapacity):

        * wtf/persistence/PersistentCoders.h:
        Use HashMap::reserveInitialCapacity() in the HashMap persistent decoder for
        performance.

2019-07-20  Alexander Mikhaylenko  <exalm7659@gmail.com>

        REGRESSION(r246033/r246496): [GTK] Kinetic scrolling doesn't work
        https://bugs.webkit.org/show_bug.cgi?id=199322

        Reviewed by Michael Catanzaro.

        Introduce ENABLE_KINETIC_SCROLLING to explicitly always have kinetic scrolling on GTK.

        * wtf/Platform.h:

2019-07-18  Youenn Fablet  <youenn@apple.com>

        Make sure to set kCTFontFallbackOptionAttribute to kCTFontFallbackOptionSystem for system fonts
        https://bugs.webkit.org/show_bug.cgi?id=199769
        <rdar://problem/49390297>

        Reviewed by Myles C. Maxfield.

        * wtf/Platform.h:

2019-07-17  Christopher Reid  <chris.reid@sony.com>

        Bytecode cache should use FileSystem
        https://bugs.webkit.org/show_bug.cgi?id=199759

        Reviewed by Yusuke Suzuki.

        * wtf/FileSystem.cpp:
        * wtf/FileSystem.h:
        Add support for creating MappedFileData from a preexisting file handle
        for use with locked files. Also support creating MappedFileData
        with either private or shared mappings.

        * wtf/UUID.cpp:
        Avoid ASSERT with returning a LazyNeverDestroyed object that hasn't been created.

        * wtf/glib/FileSystemGlib.cpp:
        * wtf/win/FileSystemWin.cpp:
        Add truncateFile implementations.

2019-07-17  Sam Weinig  <weinig@apple.com>

        Add StringBuilder member function which allows makeString() style variadic argument construction
        https://bugs.webkit.org/show_bug.cgi?id=198997

        Reviewed by Darin Adler.

        Adds new StringBuilder::flexibleAppend(...) member function which allows passing one or more 
        string-adaptable (in the sense that there is StringTypeAdapter specialization for the 
        type) parameters. This re-ususes the variadic template infrastructure in StringConcatenate.h
        that is used for makeString(...) allowing for improvements in one to benefit the other.

        The advantage of StringBuilder::flexibleAppend(...) over calling StringBuilder::append(...)
        multiple times (beyond the code sharing with makeString(...) is that it can avoid unnecessary
        additional re-allocations when the StringBuilder needs to expand it's capacity. It does this
        by computing the complete required length for all the passed arguments and then ensuring enough
        capacity is available. It also reduces the allocation overhead versus the anti-pattern of
        builder.append(makeString(...)).

        Ideally, this member function should eventually just be called StringBuilder::append(...), but
        the current overload set for StringBuilder::append(...) makes this complicated due to overloads
        that take two arguments such as StringBuilder::append(const UChar*, unsigned). Going forward, we
        should rename or remove those overloads and move to a standard interface. 

        * wtf/posix/FileSystemPOSIX.cpp:
        (WTF::FileSystemImpl::pathByAppendingComponents):
        Adopt StringBuilder::flexibleAppend, using to combine the append of '/' and component.

        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::appendUninitialized):
        (WTF::StringBuilder::appendUninitializedWithoutOverflowCheck):
        Extract the part of appendUnitialized that doesn't do the overflow check
        into it's own member function to allow callers that have already done the
        overflow check to bypass it.

        (WTF::StringBuilder::appendUninitializedWithoutOverflowCheckForUChar):
        (WTF::StringBuilder::appendUninitializedWithoutOverflowCheckForLChar):
        Added to allow template member function flexibleAppendFromAdapters to call
        appendUninitializedWithoutOverflowCheck without moving it to the header.
        
        * wtf/text/StringBuilder.h:
        (WTF::StringBuilder::flexibleAppendFromAdapters):
        (WTF::StringBuilder::flexibleAppend):
        Modeled on tryMakeStringFromAdapters in StringConcatenate.h, these
        eagerly compute the required length, expand the buffer and then use
        the existing string type adaptor accumulation functions used by makeString. 

        * wtf/text/StringConcatenate.h:
        (WTF::stringTypeAdapterAccumulator):
        (WTF::tryMakeStringFromAdapters):
        (WTF::makeStringAccumulator): Deleted.
        Renames makeStringAccumulator to stringTypeAdapterAccumulator now that it is used
        by more than just makeString.

2019-07-17  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r247505.
        https://bugs.webkit.org/show_bug.cgi?id=199871

        "Caused failed ASSERT in stress test" (Requested by creid on
        #webkit).

        Reverted changeset:

        "Bytecode cache should use FileSystem"
        https://bugs.webkit.org/show_bug.cgi?id=199759
        https://trac.webkit.org/changeset/247505

2019-07-16  Christopher Reid  <chris.reid@sony.com>

        Bytecode cache should use FileSystem
        https://bugs.webkit.org/show_bug.cgi?id=199759

        Reviewed by Yusuke Suzuki.

        * wtf/FileSystem.cpp:
        * wtf/FileSystem.h:
        Add support for creating MappedFileData from a preexisting file handle
        for use with locked files. Also support creating MappedFileData
        with either private or shared mappings.

        * wtf/UUID.cpp:
        Avoid ASSERT with returning a LazyNeverDestroyed object that hasn't been created.

        * wtf/glib/FileSystemGlib.cpp:
        * wtf/win/FileSystemWin.cpp:
        Add truncateFile implementations.

2019-07-16  Myles C. Maxfield  <mmaxfield@apple.com>

        New York font erroneously gets synthetic bold
        https://bugs.webkit.org/show_bug.cgi?id=199653

        Unreviewed MacCatalyst build fix.

        * wtf/Platform.h:

2019-07-16  Michael Catanzaro  <mcatanzaro@igalia.com>

        [WPE][GTK] Improvements and fixes in FileSystemGlib.cpp
        https://bugs.webkit.org/show_bug.cgi?id=199800

        Reviewed by Carlos Garcia Campos.

        Use nullptr.

        Fix a GFileInfo leak in getFileSize.

        Use GRefPtr to clarify ownership of the GFileIOStream in openFile.

        * wtf/glib/FileSystemGlib.cpp:
        (WTF::FileSystemImpl::getFileSize):
        (WTF::FileSystemImpl::getVolumeFreeSpace):
        (WTF::FileSystemImpl::openTemporaryFile):
        (WTF::FileSystemImpl::openFile):
        (WTF::FileSystemImpl::seekFile):
        (WTF::FileSystemImpl::writeToFile):
        (WTF::FileSystemImpl::readFromFile):

2019-07-15  Myles C. Maxfield  <mmaxfield@apple.com>

        New York font erroneously gets synthetic bold
        https://bugs.webkit.org/show_bug.cgi?id=199653

        Unreviewed watchOS build fix.

        * wtf/Platform.h:

2019-07-15  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r247462.
        https://bugs.webkit.org/show_bug.cgi?id=199816

        completely messed up the patch (Requested by litherum on
        #webkit).

        Reverted changeset:

        "New York font erroneously gets synthetic bold"
        https://bugs.webkit.org/show_bug.cgi?id=199653
        https://trac.webkit.org/changeset/247462

2019-07-11  Myles C. Maxfield  <mmaxfield@apple.com>

        New York font erroneously gets synthetic bold
        https://bugs.webkit.org/show_bug.cgi?id=199653
        <rdar://problem/51692592>

        Reviewed by Simon Fraser.

        * wtf/Platform.h:

2019-07-15  Brady Eidson  <beidson@apple.com>

        Make WKURLSchemeTask thread safe.
        <rdar://problem/50471863> and https://bugs.webkit.org/show_bug.cgi?id=199764

        Reviewed by Alex Christensen.

        * wtf/MainThread.cpp:
        (WTF::callOnMainAndWait):
        (WTF::callOnMainRunLoopAndWait):
        (WTF::callOnMainThreadAndWait):
        * wtf/MainThread.h:

2019-07-15  Dean Jackson  <dino@apple.com>

        MacCatalyst asserts when command key is raised
        https://bugs.webkit.org/show_bug.cgi?id=199805
        <rdar://problem/53120393>

        Reviewed by Tim Horton.

        Add USE_UIKIT_KEYBOARD_ADDITIONS for iOS 13+ and macCatalyst.

        * wtf/FeatureDefines.h:

2019-07-14  Chris Dumez  <cdumez@apple.com>

        Add threading assertion to WeakPtrFactory::createWeakPtr()
        https://bugs.webkit.org/show_bug.cgi?id=199639

        Reviewed by Ryosuke Niwa.

        Add threading assertion to WeakPtrFactory::createWeakPtr() to make sure it
        is called on the same thread where the WeakPtrFactory wad constructed.

        * wtf/WeakPtr.h:
        (WTF::WeakPtrFactory::WeakPtrFactory):
        (WTF::WeakPtrFactory::createWeakPtr const):

2019-07-14  Dean Jackson  <dino@apple.com>

        WebGL not supported on WKWebView on UIKit for Mac
        https://bugs.webkit.org/show_bug.cgi?id=199785
        <rdar://problem/52911449>

        Reviewed by Antoine Quint.

        MacCatalyst has Apple Graphics Control, although
        this area is very messy, see <rdar://53062794>.

        * wtf/Platform.h:

2019-07-11  Myles C. Maxfield  <mmaxfield@apple.com>

        New York font erroneously gets synthetic bold
        https://bugs.webkit.org/show_bug.cgi?id=199653
        <rdar://problem/51692592>

        Reviewed by Simon Fraser.

        * wtf/Platform.h:

2019-07-11  Pablo Saavedra  <psaavedra@igalia.com>

        [WPE][GTK] Build failure with ENABLE_ACCESSIBILITY=OFF
        https://bugs.webkit.org/show_bug.cgi?id=199625

        Added ENABLE(ACCESSIBILITY) and replaced HAVE(ACCESSIBILITY)
        with ENABLE(ACCESSIBILITY) in the code.

        Additionally, the TestRunner code generator now honors the
        Conditional IDL format.

        Reviewed by Konstantin Tokarev.

        * wtf/FeatureDefines.h:
        * wtf/Platform.h:

2019-07-10  Ryan Haddad  <ryanhaddad@apple.com>

        Unreviewed, rolling out r247286.

        Caused TestWTF.WTF.StringOperators to fail on debug bots

        Reverted changeset:

        "Add StringBuilder member function which allows makeString()
        style variadic argument construction"
        https://bugs.webkit.org/show_bug.cgi?id=198997
        https://trac.webkit.org/changeset/247286

2019-07-09  Michael Catanzaro  <mcatanzaro@igalia.com>

        [WPE][GTK] GUniqueOutPtr::release should return a raw pointer
        https://bugs.webkit.org/show_bug.cgi?id=199579

        Reviewed by Carlos Garcia Campos.

        GUniqueOutPtr::release should release to a raw pointer, rather than a GUniquePtr. If a
        GUniquePtr is desired, it's trivial to construct one from the raw pointer, but all existing
        callsites under Source/ would rather have a raw pointer. Currently they have to call
        release().release() to get the raw pointer, which is annoying.

        * wtf/glib/GUniquePtr.h:
        (WTF::GUniqueOutPtr::release):

2019-07-09  Sam Weinig  <weinig@apple.com>

        Add StringBuilder member function which allows makeString() style variadic argument construction
        https://bugs.webkit.org/show_bug.cgi?id=198997

        Reviewed by Darin Adler.

        Adds new StringBuilder::flexibleAppend(...) member function which allows passing one or more 
        string-adaptable (in the sense that there is StringTypeAdapter specialization for the 
        type) parameters. This re-ususes the variadic template infrastructure in StringConcatenate.h
        that is used for makeString(...) allowing for improvements in one to benefit the other.

        The advantage of StringBuilder::flexibleAppend(...) over calling StringBuilder::append(...)
        multiple times (beyond the code sharing with makeString(...) is that it can avoid unnecessary
        additional re-allocations when the StringBuilder needs to expand it's capacity. It does this
        by computing the complete required length for all the passed arguments and then ensuring enough
        capacity is available. It also reduces the allocation overhead versus the anti-pattern of
        builder.append(makeString(...)).

        Ideally, this member function should eventually just be called StringBuilder::append(...), but
        the current overload set for StringBuilder::append(...) makes this complicated due to overloads
        that take two arguments such as StringBuilder::append(const UChar*, unsigned). Going forward, we
        should rename or remove those overloads and move to a standard interface. 

        * wtf/posix/FileSystemPOSIX.cpp:
        (WTF::FileSystemImpl::pathByAppendingComponents):
        Adopt StringBuilder::flexibleAppend, using to combine the append of '/' and component.

        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::appendUninitialized):
        (WTF::StringBuilder::appendUninitializedWithoutOverflowCheck):
        Extract the part of appendUnitialized that doesn't do the overflow check
        into it's own member function to allow callers that have already done the
        overflow check to bypass it.

        (WTF::StringBuilder::appendUninitializedWithoutOverflowCheckForUChar):
        (WTF::StringBuilder::appendUninitializedWithoutOverflowCheckForLChar):
        Added to allow template member function flexibleAppendFromAdapters to call
        appendUninitializedWithoutOverflowCheck without moving it to the header.
        
        * wtf/text/StringBuilder.h:
        (WTF::StringBuilder::flexibleAppendFromAdapters):
        (WTF::StringBuilder::flexibleAppend):
        Modeled on tryMakeStringFromAdapters in StringConcatenate.h, these
        eagerly compute the required length, expand the buffer and then use
        the existing string type adaptor accumulation functions used by makeString. 

        * wtf/text/StringConcatenate.h:
        (WTF::stringTypeAdapterAccumulator):
        (WTF::tryMakeStringFromAdapters):
        (WTF::makeStringAccumulator): Deleted.
        Renames makeStringAccumulator to stringTypeAdapterAccumulator now that it is used
        by more than just makeString.

2019-07-09  Alex Christensen  <achristensen@webkit.org>

        When parsing an IPv4 address, wait until after deciding it is indeed an IPv4 address before reporting syntax violations
        https://bugs.webkit.org/show_bug.cgi?id=199628

        Reviewed by Brady Eidson.

        Otherwise, we sometimes report syntax violations on things that are not IPv4 addresses and don't have syntax violations.
        I added a unit test with one such URL that used to cause an assertion.

        * wtf/URLParser.cpp:
        (WTF::URLParser::parseIPv4Host):

2019-07-09  Alex Christensen  <achristensen@webkit.org>

        Remove invalid assertion in URLParser::domainToASCII
        https://bugs.webkit.org/show_bug.cgi?id=199624

        Reviewed by Brady Eidson.

        When a non-ASCII domain's punycode encoding is longer than 63 characters,
        the URL is supposed to fail to parse, according to https://www.unicode.org/reports/tr46/#ToASCII
        We and all other browsers do this.  When uidna_nameToASCII tries to punycode encode such a domain,
        it can return a number larger than 63.  In this case, processingDetails.errors is UIDNA_ERROR_LABEL_TOO_LONG
        and we fail to parse as desired and uidna_nameToASCII did not write out of bounds, so it was just the assertion
        that was wrong.  I added some unit tests that would have hit the assertion and verify that we fail at the correct length.

        * wtf/URLParser.cpp:
        (WTF::URLParser::domainToASCII):

2019-07-09  Alex Christensen  <achristensen@webkit.org>

        URLParser should reserialize IPv6 addresses that end with a colon
        https://bugs.webkit.org/show_bug.cgi?id=199627

        Reviewed by Brady Eidson.

        When an IPv6 address ends in a colon, the colon should be removed which means the
        serialized output is different than the input, which the URLParser calls a syntax violation.
        This matches the URL specification, and I added a unit test that used to assert.

        * wtf/URLParser.cpp:
        (WTF::URLParser::parseIPv6Host):

2019-07-08  Chris Dumez  <cdumez@apple.com>

        Use WeakHashSet for WebUserContentControllerProxy::m_processes
        https://bugs.webkit.org/show_bug.cgi?id=199591
        <rdar://problem/52798721>

        Reviewed by Youenn Fablet.

        Update WeakHashSet::add() to return an AddResult type, similarly to our other containers.

        * wtf/WeakHashSet.h:
        (WTF::WeakHashSet::add):

2019-07-08  Christopher Reid  <chris.reid@sony.com>

        Implement MappedFileData for Windows
        https://bugs.webkit.org/show_bug.cgi?id=198269

        Reviewed by Darin Adler.

        Original patch by Fujii Hironori.

        Add Windows implementations for MappedFileData constructor and destructor.

        * wtf/FileSystem.cpp:
        * wtf/FileSystem.h:
        * wtf/win/FileSystemWin.cpp:

2019-07-08  Chris Dumez  <cdumez@apple.com>

        Add threading assertion to WTF::CompletionHandler
        https://bugs.webkit.org/show_bug.cgi?id=199516

        Reviewed by Alex Christensen.

        Add threading assertion to WTF::CompletionHandler to try and catch common cases
        of unsafe usage (completion handler constructed on one thread but called on
        another).

        * wtf/CompletionHandler.h:
        (WTF::CompletionHandler<Out):

2019-07-08  Antoine Quint  <graouts@apple.com>

        [Pointer Events] Enable only on the most recent version of the supported iOS family
        https://bugs.webkit.org/show_bug.cgi?id=199562
        <rdar://problem/52766511>

        Reviewed by Dean Jackson.

        We really don't need HAVE_UI_WEB_TOUCH_EVENTS_GESTURE_RECOGNIZER_WITH_ACTIVE_TOUCHES_BY_ID since the UIKit SPI
        that was added in iOS 13 that it's checking for is really required for all parts of the implementation of Pointer
        Events, including dispatch of the "pointercancel" event and support for the "touch-action" CSS property.

        * wtf/Platform.h:

2019-07-05  Ryan Haddad  <ryanhaddad@apple.com>

        Unreviewed, rolling out r247115.

        Breaks lldbWebKitTester (and by extension, test-webkitpy)

        Reverted changeset:

        "[WHLSL] Standard library is too big to directly include in
        WebCore"
        https://bugs.webkit.org/show_bug.cgi?id=198186
        https://trac.webkit.org/changeset/247115

2019-07-03  Jonathan Bedard  <jbedard@apple.com>

        [Catalina] Enable WebKit build
        https://bugs.webkit.org/show_bug.cgi?id=199209

        Reviewed by Darin Adler.

        * wtf/spi/cocoa/SecuritySPI.h: Declare SecTrustedApplicationCreateFromPath(...).

2019-07-03  Keith Miller  <keith_miller@apple.com>

        PACCage should first cage leaving PAC bits intact then authenticate
        https://bugs.webkit.org/show_bug.cgi?id=199372

        Reviewed by Saam Barati.

        * wtf/CagedPtr.h:
        (WTF::CagedPtr::get const):
        (WTF::CagedPtr::getMayBeNull const):
        (WTF::CagedPtr::mergePointers):

2019-07-03  Ryan Haddad  <ryanhaddad@apple.com>

        Unreviewed, rolling out r246616.

        Caused http/tests/inspector/network/har/har-page.html to fail
        on Catalina.

        Reverted changeset:

        "Web Inspector: Network: replace CFNetwork SPI with new API
        where able"
        https://bugs.webkit.org/show_bug.cgi?id=198762
        https://trac.webkit.org/changeset/246616

2019-07-02  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r247041.
        https://bugs.webkit.org/show_bug.cgi?id=199425

        broke some iOS arm64e tests (Requested by keith_miller on
        #webkit).

        Reverted changeset:

        "PACCage should first cage leaving PAC bits intact then
        authenticate"
        https://bugs.webkit.org/show_bug.cgi?id=199372
        https://trac.webkit.org/changeset/247041

2019-07-02  Chris Dumez  <cdumez@apple.com>

        ThreadSafeRefCounted<DestructionThread::Main> is not safe to use in the UIProcess
        https://bugs.webkit.org/show_bug.cgi?id=199420
        <rdar://problem/52289717>

        Reviewed by Ryosuke Niwa.

        * wtf/MainThread.cpp:
        (WTF::isMainRunLoop):
        (WTF::callOnMainRunLoop):
        * wtf/MainThread.h:
        Add some function to MainThread.h to be used by ThreadSafeRefCounted to interact with the
        main RunLoop. This is used to avoid a circular dependency between RunLoop (which is
        ThreadSafeRefCounted) and ThreadSafeReCounted.

        * wtf/ThreadSafeRefCounted.h:
        (WTF::ThreadSafeRefCounted::deref const):
        Add a new DestructionThread::MainRunLoop enum value to be used by classes that need to
        be destroyed on the main RunLoop rather than the main thread (which may be different
        when WK1 is invoved)

2019-07-02  Robin Morisset  <rmorisset@apple.com>

        [WHLSL] the initializer in VariableDeclaration should be a std::unique_ptr, not Optional<UniqueRef<..>>
        https://bugs.webkit.org/show_bug.cgi?id=199389

        Reviewed by Sam Weinig.

        * wtf/UniqueRef.h:
        (WTF::UniqueRef::moveToUniquePtr): Added.

2019-07-02  Keith Miller  <keith_miller@apple.com>

        PACCage should first cage leaving PAC bits intact then authenticate
        https://bugs.webkit.org/show_bug.cgi?id=199372

        Reviewed by Saam Barati.

        * wtf/CagedPtr.h:
        (WTF::CagedPtr::get const):
        (WTF::CagedPtr::getMayBeNull const):
        (WTF::CagedPtr::mergePointers):

2019-07-01  Philippe Normand  <pnormand@igalia.com>

        [GStreamer] Cannot play Bert's Bytes radio stream from http://radio.dos.nl/
        https://bugs.webkit.org/show_bug.cgi?id=198376

        Reviewed by Xabier Rodriguez-Calvar.

        * wtf/glib/GLibUtilities.h:
        (enumToString): Utility function to get a string representation of of a GLib enum.

2019-06-22  Darin Adler  <darin@apple.com>

        Streamline some string code, focusing on functions that were using substringSharingImpl
        https://bugs.webkit.org/show_bug.cgi?id=198898

        Reviewed by Daniel Bates.

        * wtf/URLHelpers.cpp:
        (WTF::URLHelpers::applyHostNameFunctionToURLString): Change code using
        substringSharingImpl so it could call String::find to call StringView::contains
        instead. Also rewrote lambdas to be simpler and likely more efficient.
        Rewrote another case using substringSharingImpl so it could call String::find
        to call StringView::find instead.

        * wtf/text/StringView.cpp:
        (WTF::StringView::startsWith const): Added.

        * wtf/text/StringView.h: Tweaked style a bit, and added an overload of
        StringView::contains that takes a CodeUnitMatchFunction and an overload
        of startsWith that cakes a UChar.

2019-06-28  Konstantin Tokarev  <annulen@yandex.ru>

        Remove traces of ENABLE_ICONDATABASE remaining after its removal in 219733
        https://bugs.webkit.org/show_bug.cgi?id=199317

        Reviewed by Michael Catanzaro.

        While IconDatabase and all code using it was removed,
        ENABLE_ICONDATABASE still exists as build option and C++ macro.

        * wtf/FeatureDefines.h:

2019-06-27  Konstantin Tokarev  <annulen@yandex.ru>

        Avoid using WTF::Function for passing local function pointers and closures in URLHelpers.cpp
        https://bugs.webkit.org/show_bug.cgi?id=199271

        Reviewed by Yusuke Suzuki.

        WTF::Function allocates memory on heap, which is totally redundant in this
        case.

        * wtf/URLHelpers.cpp:
        (WTF::URLHelpers::isSecondLevelDomainNameAllowedByTLDRules):

2019-06-27  Timothy Hatcher  <timothy@apple.com>

        Move WebKitLegacy off of a couple AppKit ivars.
        https://bugs.webkit.org/show_bug.cgi?id=199279
        rdar://problem/34983438

        Reviewed by Tim Horton.

        * wtf/Platform.h: Added HAVE_SUBVIEWS_IVAR_SPI.

2019-06-27  Beth Dakin  <bdakin@apple.com>

        Upstream use of MACCATALYST
        https://bugs.webkit.org/show_bug.cgi?id=199245
        rdar://problem/51687723

        Reviewed by Tim Horton.

        * Configurations/SDKVariant.xcconfig:
        * wtf/FeatureDefines.h:
        * wtf/Platform.h:

2019-06-27  Don Olmstead  <don.olmstead@sony.com>

        [FTW] Build JavaScriptCore
        https://bugs.webkit.org/show_bug.cgi?id=199254

        Reviewed by Brent Fulgham.

        * wtf/PlatformFTW.cmake: Added.

2019-06-27  Fujii Hironori  <Hironori.Fujii@sony.com>

        [CMake] Bump cmake_minimum_required version to 3.10
        https://bugs.webkit.org/show_bug.cgi?id=199181

        Reviewed by Don Olmstead.

        * CMakeLists.txt:

2019-06-26  Konstantin Tokarev  <annulen@yandex.ru>

        Remove unneeded #include <wtf/glib/GRefPtr.h>
        https://bugs.webkit.org/show_bug.cgi?id=199228

        Reviewed by Michael Catanzaro.

        * wtf/MemoryPressureHandler.h:

2019-06-26  Myles C. Maxfield  <mmaxfield@apple.com>

        REGRESSION: ( r246394 ) webgpu/whlsl-buffer-fragment.html and webgpu/whlsl-buffer-vertex.html are failing
        https://bugs.webkit.org/show_bug.cgi?id=199012

        Reviewed by Saam Barati.

        * wtf/Platform.h:

2019-06-25  Keith Miller  <keith_miller@apple.com>

        CagedPtr doesn't merge PAC bits back into the resulting caged pointer.
        https://bugs.webkit.org/show_bug.cgi?id=199214

        Reviewed by Yusuke Suzuki.

        The current code means that caging will just strip the any failed
        authentication bits. Adding this code doesn't appear to be a
        regression on iPhone Xs.

        * wtf/CagedPtr.h:
        (WTF::CagedPtr::get const):
        (WTF::CagedPtr::getMayBeNull const):
        (WTF::CagedPtr::getUnsafe const):
        (WTF::CagedPtr::mergePointers):

2019-06-25  Sam Weinig  <weinig@apple.com>

        Experiment with simple structured bindings use
        https://bugs.webkit.org/show_bug.cgi?id=198905

        Reviewed by Darin Adler.

        * wtf/URLHelpers.cpp:
        (WTF::URLHelpers::mapHostNames):
        Simplify code using c++ structured bindings (https://en.cppreference.com/w/cpp/language/structured_binding)
        to see if all the platforms will work with it.

2019-06-25  Adam Barth  <abarth@webkit.org>

        [fuchsia] Update to newer zx_clock_get syscall
        https://bugs.webkit.org/show_bug.cgi?id=199191

        Reviewed by Sam Weinig.

        Fuchsia has changed the zx_clock_get syscall to return the clock value
        via an out parameter rather than via its return value. This change
        makes zx_clock_get consistent with all the other syscalls.

        This patch updates our use of zx_clock_get to use the new syscall. The
        old syscall is no longer supported by Fuchsia.

        * wtf/fuchsia/CPUTimeFuchsia.cpp:
        (WTF::CPUTime::get): Switch to using the out parameter.
        (WTF::CPUTime::forCurrentThread): Switch to using the out parameter.

2019-06-25  Michael Catanzaro  <mcatanzaro@igalia.com>

        Fully rename WebKitGTK+ -> WebKitGTK everywhere
        https://bugs.webkit.org/show_bug.cgi?id=199159

        Reviewed by Carlos Garcia Campos.

        * wtf/URLParser.cpp:
        (WTF::URLParser::internationalDomainNameTranscoder):

2019-06-25  Michael Catanzaro  <mcatanzaro@igalia.com>

        Require GCC 7
        https://bugs.webkit.org/show_bug.cgi?id=198914

        Reviewed by Darin Adler.

        Remove now-stale GCC version check.

        * wtf/Compiler.h:

2019-06-23  Simon Fraser  <simon.fraser@apple.com>

        Add OverflowScrollProxyNodes to the scrolling tree
        https://bugs.webkit.org/show_bug.cgi?id=199132

        Reviewed by Antti Koivisto.
        
        Setting indent is useful if you want to make a new stream with the indent of an
        existing stream.

        * wtf/text/TextStream.h:
        (WTF::TextStream::setIndent):

2019-06-20  Fujii Hironori  <Hironori.Fujii@sony.com>

        Try to use C++14 std::enable_if_t in CheckedArithmetic.h again
        https://bugs.webkit.org/show_bug.cgi?id=199099

        Reviewed by Ross Kirsling.

        r242235 changed CheckedArithmetic to not use C++14. Let's try
        C++14 again.

        * wtf/CheckedArithmetic.h: Use C++14 std::make_unsigned_t and std::enable_if_t.

2019-06-18  Darin Adler  <darin@apple.com>

        Tidy up the remaining bits of the AtomicString to AtomString rename
        https://bugs.webkit.org/show_bug.cgi?id=198990

        Reviewed by Michael Catanzaro.

        * wtf/text/AtomString.cpp: Fix a comment.
        * wtf/text/AtomString.h: Tweak formatting a bit. Use nullptr instead of 0.
        Removed "using AtomicString = AtomString".
        * wtf/text/AtomStringImpl.cpp:
        (WTF::CStringTranslator::translate): Use setIsAtom instead of setIsAtomic.
        (WTF::UCharBufferTranslator::translate): Ditto.
        (WTF::HashAndUTF8CharactersTranslator::translate): Ditto.
        (WTF::SubstringTranslator::translate): Ditto.
        (WTF::LCharBufferTranslator::translate): Ditto.
        (WTF::BufferFromStaticDataTranslator::translate): Ditto.
        (WTF::AtomStringImpl::addSlowCase): Ditto.
        (WTF::AtomStringImpl::lookUpSlowCase): Updated assertion message.

        * wtf/text/AtomStringImpl.h: Tweaked the implementation of add.
        Updated comments to say AtomString.

        * wtf/text/AtomStringTable.cpp:
        (WTF::AtomStringTable::~AtomStringTable): Use setIsAtom.

        * wtf/text/StringImpl.h: Updated name of StringAtomic and
        s_hashFlagStringKindIsAtom. Renamed to flagIsAtom and setIsAtom.

        * wtf/text/WTFString.cpp:
        (WTF::String::isSafeToSendToAnotherThread const): Updated comment.

2019-06-20  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Remove support for GTK2 plugins
        https://bugs.webkit.org/show_bug.cgi?id=199065

        Reviewed by Sergio Villar Senin.

        * wtf/Platform.h:
        * wtf/glib/GTypedefs.h:

2019-06-19  Yusuke Suzuki  <ysuzuki@apple.com>

        [bmalloc] IsoHeap's initialization is racy with IsoHeap::isInitialized
        https://bugs.webkit.org/show_bug.cgi?id=199053

        Reviewed by Saam Barati.

        Add constexpr static functions to generate pseudo random numbers from __LINE__.

        * wtf/WeakRandom.h:
        (WTF::WeakRandom::nextState):
        (WTF::WeakRandom::generate):
        (WTF::WeakRandom::advance):

2019-06-19  Fujii Hironori  <Hironori.Fujii@sony.com>

        Add WTF::crossThreadCopy(T&&) to utilize String::isolatedCopy() &&
        https://bugs.webkit.org/show_bug.cgi?id=198957

        Reviewed by Alex Christensen.

        &&-qualified String::isolatedCopy() has a optimization path which
        does just WTFMove if it isSafeToSendToAnotherThread which means
        the object hasOneRef.

        However, WTF::crossThreadCopy was using only &-qualified
        isolatedCopy. To use the optimization, added
        WTF::crossThreadCopy(T&&) overloading.

        * wtf/CrossThreadCopier.h:
        (WTF::crossThreadCopy): Added a overload of (T&&).
        * wtf/CrossThreadTask.h:
        (WTF::createCrossThreadTask): Removed explicit template arguments of crossThreadCopy.

2019-06-19  Devin Rousso  <drousso@apple.com>

        Web Inspector: Network: replace CFNetwork SPI with new API where able
        https://bugs.webkit.org/show_bug.cgi?id=198762

        Reviewed by Timothy Hatcher.

        * wtf/Platform.h:

2019-06-19  Alex Christensen  <achristensen@webkit.org>

        Add a unit test for client certificate authentication
        https://bugs.webkit.org/show_bug.cgi?id=197800

        Reviewed by Youenn Fablet.

        * wtf/spi/cocoa/SecuritySPI.h:
        Move declarations from ArgumentCodersCF.cpp so they can be shared.

2019-06-19  Adrian Perez de Castro  <aperez@igalia.com>

        [WPE][GTK] Fix build with unified sources disabled
        https://bugs.webkit.org/show_bug.cgi?id=198752

        Reviewed by Michael Catanzaro.

        * wtf/text/StringBuilder.h: Add missing include of StringConcatenateNumbers.h

2019-06-19  Zan Dobersek  <zdobersek@igalia.com>

        USE_ANGLE macro can be evaluated without being defined
        https://bugs.webkit.org/show_bug.cgi?id=198991

        Reviewed by Carlos Garcia Campos.

        * wtf/Platform.h: On platforms not yet defining USE_ANGLE, the
        incompatibility check with some other flags leads to the macro being
        evaluated even when it was not defined, producing compiler warnings.
        To avoid this, the macro should be defined to 0 before the check in
        case it was not defined already.

2019-06-18  Dean Jackson  <dino@apple.com>

        UIContextMenuInteraction implementation for WKContentView
        https://bugs.webkit.org/show_bug.cgi?id=198986
        <rdar://problem/51875189>

        Reviewed by Andy Estes.

        Add USE_UICONTEXTMENU for iOS 13+.

        * wtf/Platform.h:

2019-06-18  Kenneth Russell  <kbr@chromium.org>

        Add preliminary ANGLE backend to WebCore
        https://bugs.webkit.org/show_bug.cgi?id=197755

        Reviewed by Dean Jackson.

        Add a USE_ANGLE definition to wtf/Platform.h (currently disabled)
        which, when enabled, uses ANGLE instead of the OpenGL or OpenGL ES
        backend.

        * wtf/Platform.h:

2019-06-17  Jiewen Tan  <jiewen_tan@apple.com>

        Move SOAuthorization from WebKitAdditions to WebKit
        https://bugs.webkit.org/show_bug.cgi?id=198874
        <rdar://problem/47573431>

        Reviewed by Brent Fulgham.

        * wtf/Platform.h:
        Adds a feature flag to detect AppSSO framework.

2019-06-17  Ryan Haddad  <ryanhaddad@apple.com>

        Unreviewed, rolling out r246501.

        Breaks Apple internal builds.

        Reverted changeset:

        "Support using ANGLE as the backend for the WebGL
        implementation"
        https://bugs.webkit.org/show_bug.cgi?id=197755
        https://trac.webkit.org/changeset/246501

2019-06-17  Kenneth Russell  <kbr@chromium.org>

        Support using ANGLE as the backend for the WebGL implementation
        https://bugs.webkit.org/show_bug.cgi?id=197755

        Reviewed by Dean Jackson.

        Add a USE_ANGLE definition to wtf/Platform.h (currently disabled)
        which, when enabled, uses ANGLE instead of the OpenGL or OpenGL ES
        backend.

        * wtf/Platform.h:

2019-06-16  Darin Adler  <darin@apple.com>

        Rename AtomicString to AtomString
        https://bugs.webkit.org/show_bug.cgi?id=195276

        Reviewed by Michael Catanzaro.

        * many files: Let do-webcore-rename do the renaming.

        * wtf/text/AtomString.h: After renaming, added AtomicString as a synonym for
        now; helps smooth things over with a tiny bit of Apple internal software so
        we don't have to do this all at once. Can remove it soon.

2019-06-16  Eric Carlson  <eric.carlson@apple.com>

        [MediaStream] Avoid roundoff error when setting AVCapture min/max frame rate
        https://bugs.webkit.org/show_bug.cgi?id=198875
        <rdar://problem/51768374>

        Reviewed by Youenn Fablet.

        * wtf/MediaTime.h:
        (WTF::LogArgument<MediaTime>::toString):
        (WTF::LogArgument<MediaTimeRange>::toString):

2019-06-12  Antoine Quint  <graouts@apple.com>

        Show the web page URL when sharing an AR model
        https://bugs.webkit.org/show_bug.cgi?id=198812
        <rdar://problem/48689498>

        Reviewed by Dean Jackson.

        * wtf/Platform.h:

2019-06-12  Youenn Fablet  <youenn@apple.com>

        Use NSURLSession for WebSocket
        https://bugs.webkit.org/show_bug.cgi?id=198568

        Reviewed by Geoffrey Garen.

        * wtf/Platform.h:
        Introduce compile flag for WebSocket NSURLSession

2019-06-12  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r246322.
        https://bugs.webkit.org/show_bug.cgi?id=198796

        "It's a huge page load regression on iOS" (Requested by
        saamyjoon on #webkit).

        Reverted changeset:

        "Roll out PAC cage"
        https://bugs.webkit.org/show_bug.cgi?id=198726
        https://trac.webkit.org/changeset/246322

2019-06-10  Simon Fraser  <simon.fraser@apple.com>

        Add logging for UI-side compositing hit-testing
        https://bugs.webkit.org/show_bug.cgi?id=198739

        Reviewed by Antti Koivisto.

        Make it possible to output an Objective-C object to TextStream, which will
        log its -description.

        Also add a template for OptionSet<> printing.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/text/TextStream.h:
        (WTF::operator<<):
        * wtf/text/cocoa/TextStreamCocoa.mm: Added.
        (WTF::TextStream::operator<<):

2019-06-11  Saam Barati  <sbarati@apple.com>

        Roll out PAC cage
        https://bugs.webkit.org/show_bug.cgi?id=198726

        Reviewed by Keith Miller.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/CagedPtr.h:
        (WTF::CagedPtr::CagedPtr):
        (WTF::CagedPtr::get const):
        (WTF::CagedPtr::getMayBeNull const):
        (WTF::CagedPtr::operator=):
        (WTF::CagedPtr::operator== const):
        (WTF::CagedPtr::operator!= const):
        (WTF::CagedPtr::operator bool const):
        (WTF::CagedPtr::operator* const):
        (WTF::CagedPtr::operator-> const):
        (WTF::CagedPtr::operator[] const):
        (WTF::CagedPtr::getUnsafe const): Deleted.
        (WTF::CagedPtr::at const): Deleted.
        (WTF::CagedPtr::recage): Deleted.
        * wtf/CagedUniquePtr.h:
        (WTF::CagedUniquePtr::CagedUniquePtr):
        (WTF::CagedUniquePtr::create):
        (WTF::CagedUniquePtr::operator=):
        (WTF::CagedUniquePtr::~CagedUniquePtr):
        (WTF::CagedUniquePtr::destroy):
        * wtf/Gigacage.h:
        (Gigacage::caged):
        (Gigacage::cagedMayBeNull): Deleted.
        * wtf/PtrTag.h:
        (WTF::tagArrayPtr): Deleted.
        (WTF::untagArrayPtr): Deleted.
        (WTF::removeArrayPtrTag): Deleted.
        (WTF::retagArrayPtr): Deleted.
        * wtf/TaggedArrayStoragePtr.h:
        (WTF::TaggedArrayStoragePtr::TaggedArrayStoragePtr): Deleted.
        (WTF::TaggedArrayStoragePtr::get const): Deleted.
        (WTF::TaggedArrayStoragePtr::getUnsafe const): Deleted.
        (WTF::TaggedArrayStoragePtr::resize): Deleted.
        (WTF::TaggedArrayStoragePtr::operator bool const): Deleted.

2019-06-10  Andy Estes  <aestes@apple.com>

        [iOS] Use PDFKit SPI for taking snapshots when the hosting app is not entitled for global capture
        https://bugs.webkit.org/show_bug.cgi?id=198731
        <rdar://problem/46215174>

        Reviewed by Tim Horton.

        * wtf/FeatureDefines.h:

2019-06-10  Sam Weinig  <weinig@apple.com>

        Remove Dashboard support
        https://bugs.webkit.org/show_bug.cgi?id=198615

        Reviewed by Ryosuke Niwa.

        * wtf/FeatureDefines.h:

2019-06-10  Timothy Hatcher  <timothy@apple.com>

        Integrate dark mode support for iOS.
        https://bugs.webkit.org/show_bug.cgi?id=198687
        rdar://problem/51545643

        Reviewed by Tim Horton.

        * wtf/Platform.h:

2019-06-08  Andy Estes  <aestes@apple.com>

        [Apple Pay] If we have a bound interface identifier, set it on new PKPaymentRequests
        https://bugs.webkit.org/show_bug.cgi?id=198690
        <rdar://problem/48041803>

        Reviewed by Tim Horton.

        * wtf/FeatureDefines.h: Defined HAVE_PASSKIT_BOUND_INTERFACE_IDENTIFIER, and cleaned up some
        other PassKit HAVEs.

2019-06-06  Caio Lima  <ticaiolima@gmail.com>

        [JSCOnly] JSCOnly port is not building on macOS
        https://bugs.webkit.org/show_bug.cgi?id=198563

        Reviewed by Don Olmstead.

        We are adding `<mach/vm_types.h>` to fix build issues when compiling
        JSCOnly port on macOS.

        * wtf/WTFAssertions.cpp:

2019-06-03  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r246022.
        https://bugs.webkit.org/show_bug.cgi?id=198486

        Causing Internal build failures and JSC test failures
        (Requested by ShawnRoberts on #webkit).

        Reverted changeset:

        "Reenable Gigacage on ARM64."
        https://bugs.webkit.org/show_bug.cgi?id=198453
        https://trac.webkit.org/changeset/246022

2019-06-03  Darin Adler  <darin@apple.com>

        Finish cleanup of String::number for floating point
        https://bugs.webkit.org/show_bug.cgi?id=198471

        Reviewed by Yusuke Suzuki.

        * wtf/JSONValues.cpp:
        (WTF::JSONImpl::Value::writeJSON const): Use appendNumber instead of
        appendECMAScriptNumber, since that's now the default.

        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::appendNumber): Renamed from appendShortestFormNumber.
        * wtf/text/StringBuilder.h: Removed appendShortestFormNumber and
        appendECMAScriptNumber, replacing both with overload of appendNumber.

        * wtf/text/WTFString.cpp:
        (WTF::String::number): Renamed from numberToStringShortest.
        * wtf/text/WTFString.h: Removed numberToStringShortest and
        numberToStringECMAScript, replacing both with overload of number.

2019-06-02  Keith Miller  <keith_miller@apple.com>

        Reenable Gigacage on ARM64.
        https://bugs.webkit.org/show_bug.cgi?id=198453

        Reviewed by Filip Pizlo.

        * wtf/CagedPtr.h:
        (WTF::CagedPtr::authenticatingLoad):
        (WTF::CagedPtr::get const):
        (WTF::CagedPtr::getMayBeNull const):

2019-05-31  Alex Christensen  <achristensen@webkit.org>

        URLParser::parseIPv6Host should properly parse 0's around compression
        https://bugs.webkit.org/show_bug.cgi?id=198424

        Reviewed by Tim Horton.

        * wtf/URLParser.cpp:
        (WTF::URLParser::parseIPv6Host):

2019-05-31  Alex Christensen  <achristensen@webkit.org>

        URLParser::parseHostAndPort should not allow non-port characters after an ipv6 host
        https://bugs.webkit.org/show_bug.cgi?id=198428
        <rdar://problem/51209196>

        Reviewed by Tim Horton.

        This matches Chrome and Firefox.

        * wtf/URLParser.cpp:
        (WTF::URLParser::parseHostAndPort):

2019-05-31  Tim Horton  <timothy_horton@apple.com>

        Optionally respect device management restrictions when loading from the network
        https://bugs.webkit.org/show_bug.cgi?id=198318
        <rdar://problem/44263806>

        Reviewed by Alex Christensen.

        * wtf/Platform.h:
        Add a HAVE flag for DeviceManagement.framework.
        It does exist in the simulator, but does not function; pretend it doesn't exist.

2019-05-31  Geoffrey Garen  <ggaren@apple.com>

        Some WeakPtr cleanup
        https://bugs.webkit.org/show_bug.cgi?id=198390

        Reviewed by Chris Dumez.

        * wtf/WeakHashSet.h:
        (WTF::HashTraits<Ref<WeakPtrImpl>>::isReleasedWeakValue):
        (WTF::WeakHashSet::WeakHashSetConstIterator::WeakHashSetConstIterator):
        Updated for rename to WeakPtrImpl.

        (WTF::WeakHashSet::WeakHashSetConstIterator::get const): Updated for new
        get() interface. Also, switched to iterator operator* to help clarify
        the double dereference here.

        (WTF::WeakHashSet::add):
        (WTF::WeakHashSet::remove):
        (WTF::WeakHashSet::contains const):
        (WTF::WeakHashSet::computeSize const):
        (WTF::HashTraits<Ref<WeakReference>>::isReleasedWeakValue): Deleted.
        Updated for rename to WeakPtrImpl.

        * wtf/WeakPtr.h:
        (WTF::WeakPtrImpl::create):
        (WTF::WeakPtrImpl::~WeakPtrImpl): Renamed WeakReference to WeakPtrImpl.
        Now we don't need a comment explaining that this class is the backing
        implementation of WeakPtr.

        (WTF::WeakPtrImpl::get): Return the pointer type we stored, rather than
        the pointer type requested by our client. It's a little too surprising
        for a field to store one pointer type and load another.

        (WTF::WeakPtrImpl::WeakPtrImpl): Fixed a theoretical type safety bug.
        Make sure to store T::WeakValueType* instead of T*, since they might
        not be the same pointer value. (In practice, T and T::WeakValueType*
        are always the same type in this constructor because WeakPtrFactory
        makes them so, but it's best not to depend on implementation details
        across classes.)

        (WTF::WeakPtr::get const): Updated for new get() interface.

        (WTF::WeakPtr::operator bool const):
        (WTF::WeakPtr::operator=):
        (WTF::WeakPtr::clear):
        (WTF::WeakPtr::WeakPtr): Updated for WeakPtrImpl rename.

        (WTF::WeakPtrFactory::~WeakPtrFactory): Updated for WeakPtrImpl rename.

        (WTF::WeakPtrFactory::createWeakPtr const): ASSERT that the passed-in
        pointer is equal to the stored pointer. As a space optimization, we
        require our client to remind us what we point to each time a weak
        pointer is created -- but nothing guarantees that our client will do
        this correctly.

        (WTF::WeakPtrFactory::revokeAll): Updated for WeakPtrImpl rename.

        (WTF::CanMakeWeakPtr::weakPtrFactory const):
        (WTF::CanMakeWeakPtr::weakPtrFactory): Use idiomatic accessor naming.

        (WTF::weak_ptr_impl_cast): Fixed a theoretical type safety bug.
        Previously, if Base and Derived both inherited CanMakeWeakPtr, and
        you casted WeakPtr<Base> to WeakPtr<Derived> (or vice versa), and
        casting Base <-> Derived required pointer fixup, the previous
        compile-time check would accept the cast, even though the stored pointer
        would be wrong.

        (WTF::WeakPtr<T>::WeakPtr):
        (WTF::=):
        (WTF::makeWeakPtr):
        (WTF::WeakReference::create): Deleted.
        (WTF::WeakReference::~WeakReference): Deleted.
        (WTF::WeakReference::get const): Deleted.
        (WTF::WeakReference::operator bool const): Deleted.
        (WTF::WeakReference::clear): Deleted.
        (WTF::WeakReference::WeakReference): Deleted.
        (WTF::weak_reference_cast): Deleted. Updated for rename to WeakPtrImpl.

        Don't export WeakPtrImpl because it's an implmenetation detail and
        it shouldn't be easy to use outside WTF.

2019-05-31  Don Olmstead  <don.olmstead@sony.com>

        [CMake] Add WebKit::WTF target
        https://bugs.webkit.org/show_bug.cgi?id=198400

        Reviewed by Konstantin Tokarev.

        Create the WebKit::WTF target and use that to propagate headers. Use
        WEBKIT_COPY_FILES instead of WEBKIT_MAKE_FORWARDING_HEADERS.

        * wtf/CMakeLists.txt:

2019-05-30  Saam Barati  <sbarati@apple.com>

        [WHLSL] Enforce variable lifetimes
        https://bugs.webkit.org/show_bug.cgi?id=195794
        <rdar://problem/50746293>

        Reviewed by Myles C. Maxfield.

        * wtf/PrintStream.h:

2019-05-30  Keith Rollin  <krollin@apple.com>

        Fix yet more deprecated uses of -[UIApplication interfaceOrientation]
        https://bugs.webkit.org/show_bug.cgi?id=198381
        <rdar://problem/51265846>

        Reviewed by Wenson Hsieh.

        r245267, r245272, and r245874 fixed many instances of this issue; this
        change fixes the issue for tvOS.

        * wtf/FeatureDefines.h:

2019-05-29  David Kilzer  <ddkilzer@apple.com>

        Clean up a few #include statements in WTF
        <https://webkit.org/b/198351>

        Reviewed by Alex Christensen.

        * benchmarks/HashSetDFGReplay.cpp:
        - Add missing "config.h" include.
        * wtf/ParallelJobsGeneric.cpp:
        - Replace include of ParallelJobs.h with
          ParallelJobsGeneric.h.
        * wtf/StackBounds.cpp:
        - Fix include ordering of StackBounds.h.

2019-05-29  Keith Rollin  <krollin@apple.com>

        Followup to r245267 and r245272: fix even more deprecated uses of -[UIApplication interfaceOrientation]
        https://bugs.webkit.org/show_bug.cgi?id=198348
        <rdar://problem/51234077>

        Reviewed by Wenson Hsieh.

        r245267 and r245272 fixed many instances of this issue; this change
        fixes the issue for watchOS.

        * wtf/FeatureDefines.h:

2019-05-29  David Kilzer  <ddkilzer@apple.com>

        IndexedDatabase Server thread in com.apple.WebKit.Networking process leaks objects into an autoreleasePool that's never cleared
        <https://webkit.org/b/198346>
        <rdar://problem/50895658>

        Reviewed by Brent Fulgham.

        * wtf/CrossThreadTaskHandler.cpp:
        (WTF::CrossThreadTaskHandler::CrossThreadTaskHandler):
        - Add optional second argument to enable use of an
          AutodrainedPool when running the runloop.
        (WTF::CrossThreadTaskHandler::taskRunLoop):
        - Create an AutodrainedPool if requested when
          CrossThreadTaskHandler was created.
        * wtf/CrossThreadTaskHandler.h:
        (WTF::CrossThreadTaskHandler::AutodrainedPoolForRunLoop):
        - Add enum class for enabling an AutodrainedPool for
          CrossThreadTaskHandler::taskRunLoop().
        (WTF::CrossThreadTaskHandler::CrossThreadTaskHandler):
        - Add optional second argument to enable use of an
          AutodrainedPool when running the runloop.

2019-05-29  Geoffrey Garen  <ggaren@apple.com>

        WeakPtr breaks vtables when upcasting to base classes
        https://bugs.webkit.org/show_bug.cgi?id=188799

        Reviewed by Youenn Fablet.

        This patch switches from reinterpret_cast to static_cast when loading
        from WeakReference storage.

        We know which type to cast *to* because it's specified by the type of
        the calling WeakPtr.

        We know which type to cast *from* because it's specified by a typedef
        in CanMakeWeakPtr.

        (Our convention is that we store a pointer to the class that derives
        from CanMakeWeakPtr. We cast from that pointer to derived pointers when
        we get(). This means that #include of the derived type header is now
        required in order to get() the pointer.)

        * wtf/WeakHashSet.h:
        (WTF::HashTraits<Ref<WeakReference>>::isReleasedWeakValue): Definition
        is now eagerly required because WeakReference is not a template anymore.

        (WTF::WeakHashSet::WeakHashSetConstIterator::get const):
        (WTF::WeakHashSet::WeakHashSetConstIterator::skipEmptyBuckets):
        (WTF::WeakHashSet::remove):
        (WTF::WeakHashSet::contains const):
        (WTF::WeakHashSet::computesEmpty const):
        (WTF::WeakHashSet::hasNullReferences const):
        (WTF::WeakHashSet::computeSize const):
        (WTF::HashTraits<Ref<WeakReference<T>>>::isReleasedWeakValue): Deleted.
        Updated for new WeakReference get() API.

        * wtf/WeakPtr.h: Use a macro for TestAPI support. We can't use template
        specialization because WeakReference is not a class template anymore.
        (Or maybe we could have kept it working with a dummy template argument?
        Felt weird, so I switched.)

        (WTF::WeakReference::create):
        (WTF::WeakReference::~WeakReference):
        (WTF::WeakReference::get const):
        (WTF::WeakReference::operator bool const):
        (WTF::WeakReference::WeakReference): WeakReference is just a void* now.
        It's the caller's responsibility, when creating and getting, to use
        a consistent storage type. We ensure a canonical storage type using a
        typedef inside CanMakeWeakPtr.

        (WTF::WeakPtr::WeakPtr):
        (WTF::WeakPtr::get const):
        (WTF::WeakPtr::operator bool const):
        (WTF::WeakPtr::operator-> const):
        (WTF::WeakPtr::operator* const): Adopted new WeakReference API.

        (WTF::WeakPtrFactory::createWeakPtr const): No need for reinterpret_cast.

        (WTF::weak_reference_cast): This isn't required for correctness, but it's
        nice to show a complier error at WeakPtr construction sites when you know
        that the types won't work. Otherwise, you get compiler errors at
        dereference sites, which are slightly more mysterious ways of saying that
        you constructed your WeakPtr incorrectly.

        (WTF::WeakPtr<T>::WeakPtr):
        (WTF::=):
        (WTF::makeWeakPtr):
        (WTF::weak_reference_upcast): Deleted.
        (WTF::weak_reference_downcast): Deleted.

2019-05-29  Ryan Haddad  <ryanhaddad@apple.com>

        Unreviewed, rolling out r245857.

        Breaks internal builds.

        Reverted changeset:

        "WeakPtr breaks vtables when upcasting to base classes"
        https://bugs.webkit.org/show_bug.cgi?id=188799
        https://trac.webkit.org/changeset/245857

2019-05-28  Geoffrey Garen  <ggaren@apple.com>

        WeakPtr breaks vtables when upcasting to base classes
        https://bugs.webkit.org/show_bug.cgi?id=188799

        Reviewed by Youenn Fablet.

        This patch switches from reinterpret_cast to static_cast when loading
        from WeakReference storage.

        We know which type to cast *to* because it's specified by the type of
        the calling WeakPtr.

        We know which type to cast *from* because it's specified by a typedef
        in CanMakeWeakPtr.

        (Our convention is that we store a pointer to the class that derives
        from CanMakeWeakPtr. We cast from that pointer to derived pointers when
        we get(). This means that #include of the derived type header is now
        required in order to get() the pointer.)

        * wtf/WeakHashSet.h:
        (WTF::HashTraits<Ref<WeakReference>>::isReleasedWeakValue): Definition
        is now eagerly required because WeakReference is not a template anymore.

        (WTF::WeakHashSet::WeakHashSetConstIterator::get const):
        (WTF::WeakHashSet::WeakHashSetConstIterator::skipEmptyBuckets):
        (WTF::WeakHashSet::remove):
        (WTF::WeakHashSet::contains const):
        (WTF::WeakHashSet::computesEmpty const):
        (WTF::WeakHashSet::hasNullReferences const):
        (WTF::WeakHashSet::computeSize const):
        (WTF::HashTraits<Ref<WeakReference<T>>>::isReleasedWeakValue): Deleted.
        Updated for new WeakReference get() API.

        * wtf/WeakPtr.h: Use a macro for TestAPI support. We can't use template
        specialization because WeakReference is not a class template anymore.
        (Or maybe we could have kept it working with a dummy template argument?
        Felt weird, so I switched.)

        (WTF::WeakReference::create):
        (WTF::WeakReference::~WeakReference):
        (WTF::WeakReference::get const):
        (WTF::WeakReference::operator bool const):
        (WTF::WeakReference::WeakReference): WeakReference is just a void* now.
        It's the caller's responsibility, when creating and getting, to use
        a consistent storage type. We ensure a canonical storage type using a
        typedef inside CanMakeWeakPtr.

        (WTF::WeakPtr::WeakPtr):
        (WTF::WeakPtr::get const):
        (WTF::WeakPtr::operator bool const):
        (WTF::WeakPtr::operator-> const):
        (WTF::WeakPtr::operator* const): Adopted new WeakReference API.

        (WTF::WeakPtrFactory::createWeakPtr const): No need for reinterpret_cast.

        (WTF::weak_reference_cast): This isn't required for correctness, but it's
        nice to show a complier error at WeakPtr construction sites when you know
        that the types won't work. Otherwise, you get compiler errors at
        dereference sites, which are slightly more mysterious ways of saying that
        you constructed your WeakPtr incorrectly.

        (WTF::WeakPtr<T>::WeakPtr):
        (WTF::=):
        (WTF::makeWeakPtr):
        (WTF::weak_reference_upcast): Deleted.
        (WTF::weak_reference_downcast): Deleted.

2019-05-27  Chris Dumez  <cdumez@apple.com>

        Use a strongly-typed identifier for pages
        https://bugs.webkit.org/show_bug.cgi?id=198206

        Reviewed by Youenn Fablet.

        * wtf/ObjectIdentifier.h:
        (WTF::operator<<):

2019-05-23  Don Olmstead  <don.olmstead@sony.com>

        [CMake] Use target oriented design for bmalloc
        https://bugs.webkit.org/show_bug.cgi?id=198046

        Reviewed by Konstantin Tokarev.

        Use WebKit::bmalloc target.

        * wtf/CMakeLists.txt:

2019-05-23  Ross Kirsling  <ross.kirsling@sony.com>

        [PlayStation] Implement platformUserPreferredLanguages.
        https://bugs.webkit.org/show_bug.cgi?id=198149

        Reviewed by Fujii Hironori.

        * wtf/PlatformPlayStation.cmake:
        * wtf/playstation/LanguagePlayStation.cpp: Added.
        (WTF::platformUserPreferredLanguages):

2019-05-22  Myles C. Maxfield  <mmaxfield@apple.com>

        font-optical-sizing applies the wrong variation value
        https://bugs.webkit.org/show_bug.cgi?id=197528
        <rdar://problem/50152854>

        Reviewed by Antti Koivisto.

        * wtf/Platform.h:

2019-05-22  Ryan Haddad  <ryanhaddad@apple.com>

        Unreviewed, rolling out r245598.

        Breaks watchOS build.

        Reverted changeset:

        "font-optical-sizing applies the wrong variation value"
        https://bugs.webkit.org/show_bug.cgi?id=197528
        https://trac.webkit.org/changeset/245598

2019-05-21  Ross Kirsling  <ross.kirsling@sony.com>

        [PlayStation] Don't call fcntl.
        https://bugs.webkit.org/show_bug.cgi?id=197961

        Reviewed by Fujii Hironori.

        * wtf/PlatformGTK.cmake:
        * wtf/PlatformJSCOnly.cmake:
        * wtf/PlatformPlayStation.cmake:
        * wtf/PlatformWPE.cmake:
        * wtf/UniStdExtras.h:
        * wtf/playstation/UniStdExtrasPlayStation.cpp: Added.
        (WTF::setCloseOnExec):
        (WTF::dupCloseOnExec):
        (WTF::setNonBlock):
        * wtf/unix/UniStdExtrasUnix.cpp: Renamed from Source/WTF/wtf/UniStdExtras.cpp.
        (WTF::setNonBlock):
        Move UniStdExtras to unix/, add a PlayStation version that doesn't use fcntl, add an abstraction for O_NONBLOCK.

2019-05-20  Tadeu Zagallo  <tzagallo@apple.com>

        Only cache bytecode for API clients in data vaults
        https://bugs.webkit.org/show_bug.cgi?id=197898

        Reviewed by Keith Miller.

        Add SPI to check if a filesystem path is restricted as a data vault.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/spi/darwin/DataVaultSPI.h: Added.

2019-05-20  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GLIB] Repeating timer is not stopped when stop is called from the callback
        https://bugs.webkit.org/show_bug.cgi?id=197986

        Reviewed by Michael Catanzaro.

        In case of repeating timers we always update the ready time to fire interval after the user callback is called.

        * wtf/glib/RunLoopGLib.cpp:
        (WTF::RunLoop::TimerBase::stop): Reset m_fireInterval and m_isRepeating.

2019-05-19  Darin Adler  <darin@apple.com>

        Change String::number to use "shortest" instead of "fixed precision 6 digits"
        https://bugs.webkit.org/show_bug.cgi?id=178319

        Reviewed by Sam Weinig.

        * wtf/text/StringBuilder.h: Delete appendNumber for floating point and
        appendECMAScriptNumber for single-precision.

        * wtf/text/WTFString.h: Delete String::number for floating point and
        numberToStringECMAScript for single-precision.

2019-05-18  Tadeu Zagallo  <tzagallo@apple.com>

        Add extra information to dumpJITMemory
        https://bugs.webkit.org/show_bug.cgi?id=197998

        Reviewed by Saam Barati.

        Add a new trace point code for JSC::dumpJITMemory

        * wtf/SystemTracing.h:

2019-05-17  Don Olmstead  <don.olmstead@sony.com>

        [CMake] Use builtin FindICU
        https://bugs.webkit.org/show_bug.cgi?id=197934

        Reviewed by Michael Catanzaro.

        Remove uses of ICU_INCLUDE_DIRS and ICU_LIBRARIES. Use ICU:: targets which end
        up propagating to all consumers of WTF.

        * wtf/CMakeLists.txt:
        * wtf/PlatformPlayStation.cmake:

2019-05-17  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r245418.
        https://bugs.webkit.org/show_bug.cgi?id=197989

        New API test causing crashes on Mojave testers (Requested by
        ShawnRoberts on #webkit).

        Reverted changeset:

        "Add a unit test for client certificate authentication"
        https://bugs.webkit.org/show_bug.cgi?id=197800
        https://trac.webkit.org/changeset/245418

2019-05-16  Keith Miller  <keith_miller@apple.com>

        Wasm should cage the memory base pointers in structs
        https://bugs.webkit.org/show_bug.cgi?id=197620

        Reviewed by Saam Barati.

        Rename reauthenticate to recage.

        * wtf/CagedPtr.h:
        (WTF::CagedPtr::recage):
        (WTF::CagedPtr::reauthenticate): Deleted.

2019-05-16  Alex Christensen  <achristensen@webkit.org>

        Add a unit test for client certificate authentication
        https://bugs.webkit.org/show_bug.cgi?id=197800

        Reviewed by Youenn Fablet.

        * wtf/spi/cocoa/SecuritySPI.h:
        Move declarations from ArgumentCodersCF.cpp so they can be shared.

2019-05-16  Eike Rathke  <erack@redhat.com>

        Fix memcpy() call for big endian
        https://bugs.webkit.org/show_bug.cgi?id=197945

        Reviewed by Michael Catanzaro.

        * wtf/Packed.h:
        (WTF::alignof):

2019-05-15  Ross Kirsling  <ross.kirsling@sony.com>

        [PlayStation] WTFCrash should preserve register state.
        https://bugs.webkit.org/show_bug.cgi?id=197932

        Reviewed by Don Olmstead.

        * wtf/Assertions.cpp:
        * wtf/Assertions.h:
        Let r196397 apply to PlayStation port as well.

2019-05-15  Simon Fraser  <simon.fraser@apple.com>

        Make LOG_WITH_STREAM more efficient
        https://bugs.webkit.org/show_bug.cgi?id=197905

        Reviewed by Alex Christensen.

        Add a streamable repeat() class that can be used to output a series of characters.
        This is useful for indenting output.

        * wtf/text/TextStream.h:
        (WTF::TextStream::repeat::repeat):
        (WTF::TextStream::operator<<):

2019-05-15  Víctor Manuel Jáquez Leal  <vjaquez@igalia.com>

        compilation failure with clang 9
        https://bugs.webkit.org/show_bug.cgi?id=197911

        Reviewed by Alex Christensen.

        Use std namespace for nullptr_t in tagArrayPtr templates.

        * wtf/PtrTag.h:
        (WTF::tagArrayPtr):

2019-05-14  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r245281.
        https://bugs.webkit.org/show_bug.cgi?id=197887

        Broke API Test TestWebKitAPI.Challenge.ClientCertificate
        (Requested by aakashjain on #webkit).

        Reverted changeset:

        "Add a unit test for client certificate authentication"
        https://bugs.webkit.org/show_bug.cgi?id=197800
        https://trac.webkit.org/changeset/245281

2019-05-14  Alex Christensen  <achristensen@webkit.org>

        Add a unit test for client certificate authentication
        https://bugs.webkit.org/show_bug.cgi?id=197800

        Reviewed by Youenn Fablet.

        * wtf/spi/cocoa/SecuritySPI.h:
        Move declarations from ArgumentCodersCF.cpp so they can be shared.

2019-05-13  Robin Morisset  <rmorisset@apple.com>

        IndexSet::isEmpty should use BitVector::isEmpty() instead of size()
        https://bugs.webkit.org/show_bug.cgi?id=197857

        Reviewed by Darin Adler.

        * wtf/IndexSet.h:
        (WTF::IndexSet::isEmpty const):

2019-05-13  Youenn Fablet  <youenn@apple.com>

        [Mac] Use realpath for dlopen_preflight
        https://bugs.webkit.org/show_bug.cgi?id=197803

        Reviewed by Eric Carlson.

        * wtf/cocoa/SoftLinking.h:

2019-05-13  Yusuke Suzuki  <ysuzuki@apple.com>

        Unreviewed, wrokaround for MACH_VM_MAX_ADDRESS in ARM32_64
        https://bugs.webkit.org/show_bug.cgi?id=197730

        Interestingly, MACH_VM_MAX_ADDRESS is larger than 32bit in ARM32_64, I think this is a bug.
        But for now, we workaround for this case by using `CPU(ADDRESS64)`.

        * wtf/WTFAssertions.cpp:

2019-05-13  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] Remove Threading workaround for support libraries in Windows
        https://bugs.webkit.org/show_bug.cgi?id=197350

        Reviewed by Darin Adler.

        We kept old APIs for some support libraries at 2017. This patch removes them.

        * wtf/Threading.h:
        * wtf/win/ThreadingWin.cpp:
        (WTF::createThread): Deleted.
        (WTF::waitForThreadCompletion): Deleted.

2019-05-13  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] Simplify GCThread and CompilationThread flags by adding them to WTF::Thread
        https://bugs.webkit.org/show_bug.cgi?id=197146

        Reviewed by Saam Barati.

        Since GCThread and CompilationThread flags exist in WTF, we put these flags into WTF::Thread directly instead of holding them in ThreadSpecific<>.
        And this patch removes dependency from Threading.h to ThreadSpecific.h. ThreadSpecific.h's OS threading primitives are moved to ThreadingPrimitives.h,
        and Threading.h relies on it instead.

        * wtf/CompilationThread.cpp:
        (WTF::isCompilationThread):
        (WTF::initializeCompilationThreads): Deleted.
        (WTF::exchangeIsCompilationThread): Deleted.
        * wtf/CompilationThread.h:
        (WTF::CompilationScope::CompilationScope):
        (WTF::CompilationScope::~CompilationScope):
        (WTF::CompilationScope::leaveEarly):
        * wtf/MainThread.cpp:
        (WTF::initializeMainThread):
        (WTF::initializeMainThreadToProcessMainThread):
        (WTF::isMainThreadOrGCThread):
        (WTF::initializeGCThreads): Deleted.
        (WTF::registerGCThread): Deleted.
        (WTF::mayBeGCThread): Deleted.
        * wtf/MainThread.h:
        * wtf/ThreadSpecific.h:
        (WTF::canBeGCThread>::ThreadSpecific):
        (WTF::canBeGCThread>::set):
        (WTF::threadSpecificKeyCreate): Deleted.
        (WTF::threadSpecificKeyDelete): Deleted.
        (WTF::threadSpecificSet): Deleted.
        (WTF::threadSpecificGet): Deleted.
        * wtf/Threading.cpp:
        (WTF::Thread::exchangeIsCompilationThread):
        (WTF::Thread::registerGCThread):
        (WTF::Thread::mayBeGCThread):
        * wtf/Threading.h:
        (WTF::Thread::isCompilationThread const):
        (WTF::Thread::gcThreadType const):
        (WTF::Thread::joinableState const):
        (WTF::Thread::hasExited const):
        (WTF::Thread::Thread):
        (WTF::Thread::joinableState): Deleted.
        (WTF::Thread::hasExited): Deleted.
        * wtf/ThreadingPrimitives.h:
        (WTF::threadSpecificKeyCreate):
        (WTF::threadSpecificKeyDelete):
        (WTF::threadSpecificSet):
        (WTF::threadSpecificGet):
        * wtf/win/ThreadSpecificWin.cpp:
        (WTF::flsKeys):

2019-05-13  Yusuke Suzuki  <ysuzuki@apple.com>

        Unreviewed, follow-up after r245214
        https://bugs.webkit.org/show_bug.cgi?id=197730

        Suggested by Sam. We should have static_assert with MACH_VM_MAX_ADDRESS.

        * wtf/WTFAssertions.cpp:

2019-05-13  Youenn Fablet  <youenn@apple.com>

        Use kDNSServiceFlagsKnownUnique for DNSServiceRegisterRecord only on platforms supporting it
        https://bugs.webkit.org/show_bug.cgi?id=197802

        Reviewed by Eric Carlson.

        * wtf/Platform.h:

2019-05-13  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Compress miscelaneous JIT related data structures with Packed<>
        https://bugs.webkit.org/show_bug.cgi?id=197830

        Reviewed by Saam Barati.

        * wtf/Packed.h:
        (WTF::alignof):

2019-05-13  Michael Catanzaro  <mcatanzaro@igalia.com>

        Unreviewed, fix unused variable warnings in release builds

        * wtf/URLHelpers.cpp:
        (WTF::URLHelpers::escapeUnsafeCharacters):

2019-05-12  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Compress Watchpoint size by using enum type and Packed<> data structure
        https://bugs.webkit.org/show_bug.cgi?id=197730

        Reviewed by Filip Pizlo.

        This patch introduces a new data structures, WTF::Packed, WTF::PackedPtr, and WTF::PackedAlignedPtr.

        - WTF::Packed

            WTF::Packed is data storage. We can read and write trivial (in C++ term [1]) data to this storage. The difference to
            the usual storage is that the alignment of this storage is always 1. We access the underlying data by using unalignedLoad/unalignedStore.
            This class offers alignment = 1 data structure instead of missing the following characteristics.

                1. Load / Store are non atomic even if the data size is within a pointer width. We should not use this for a member which can be accessed
                   in a racy way. (e.g. fields accessed optimistically from the concurrent compilers).

                2. We cannot take reference / pointer to the underlying storage since they are unaligned.

                3. Access to this storage is unaligned access. The code is using memcpy, and the compiler will convert to an appropriate unaligned access
                   in certain architectures (x86_64 / ARM64). It could be slow. So use it for non performance sensitive & memory sensitive places.

        - WTF::PackedPtr

            WTF::PackedPtr is a specialization of WTF::Packed<T*>. And it is basically WTF::PackedAlignedPtr with alignment = 1. We further compact
            the pointer by leveraging the platform specific knowledge. In 64bit architectures, the effective width of pointers are less than 64 bit.
            In x86_64, it is 48 bits. And Darwin ARM64 is further smaller, 36 bits. This information allows us to compact the pointer to 6 bytes in
            x86_64 and 5 bytes in Darwin ARM64.

        - WTF::PackedAlignedPtr

            WTF::PackedAlignedPtr is the WTF::PackedPtr with alignment information of the T. If we use this alignment information, we could reduce the
            size of packed pointer further in some cases. For example, since we guarantee that JSCells are 16 byte aligned, low 4 bits are empty. Leveraging
            this information in Darwin ARM64 platform allows us to make packed JSCell pointer 4 bytes (36 - 4 bits). We do not use passed alignment
            information if it is not profitable.

        We also have PackedPtrTraits. This is new PtrTraits and use it for various data structures such as Bag<>.

        [1]: https://en.cppreference.com/w/cpp/types/is_trivial

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Bag.h:
        (WTF::Bag::clear):
        (WTF::Bag::iterator::operator++):
        * wtf/CMakeLists.txt:
        * wtf/DumbPtrTraits.h:
        * wtf/DumbValueTraits.h:
        * wtf/MathExtras.h:
        (WTF::clzConstexpr):
        (WTF::clz):
        (WTF::ctzConstexpr):
        (WTF::ctz):
        (WTF::getLSBSetConstexpr):
        (WTF::getMSBSetConstexpr):
        * wtf/Packed.h: Added.
        (WTF::Packed::Packed):
        (WTF::Packed::get const):
        (WTF::Packed::set):
        (WTF::Packed::operator=):
        (WTF::Packed::exchange):
        (WTF::Packed::swap):
        (WTF::alignof):
        (WTF::PackedPtrTraits::exchange):
        (WTF::PackedPtrTraits::swap):
        (WTF::PackedPtrTraits::unwrap):
        * wtf/Platform.h:
        * wtf/SentinelLinkedList.h:
        (WTF::BasicRawSentinelNode::BasicRawSentinelNode):
        (WTF::BasicRawSentinelNode::prev):
        (WTF::BasicRawSentinelNode::next):
        (WTF::PtrTraits>::remove):
        (WTF::PtrTraits>::prepend):
        (WTF::PtrTraits>::append):
        (WTF::RawNode>::SentinelLinkedList):
        (WTF::RawNode>::remove):
        (WTF::BasicRawSentinelNode<T>::remove): Deleted.
        (WTF::BasicRawSentinelNode<T>::prepend): Deleted.
        (WTF::BasicRawSentinelNode<T>::append): Deleted.
        * wtf/StdLibExtras.h:
        (WTF::roundUpToMultipleOfImpl):
        (WTF::roundUpToMultipleOfImpl0): Deleted.
        * wtf/UnalignedAccess.h:
        (WTF::unalignedLoad):
        (WTF::unalignedStore):

2019-05-10  Saam barati  <sbarati@apple.com>

        Bag's move operator= leaks memory
        https://bugs.webkit.org/show_bug.cgi?id=197757

        Reviewed by Keith Miller.

        It was unused. So I'm just removing it. We can implement it properly
        if we ever need it.

        * wtf/Bag.h:
        (WTF::Bag::operator=): Deleted.

2019-05-10  Fujii Hironori  <Hironori.Fujii@sony.com>

        [WinCairo] storage/indexeddb tests are timing out
        https://bugs.webkit.org/show_bug.cgi?id=196289

        Reviewed by Alex Christensen.

        * wtf/FileSystem.h: Added hardLink.
        * wtf/glib/FileSystemGlib.cpp:
        (WTF::FileSystemImpl::hardLink):
        (WTF::FileSystemImpl::hardLinkOrCopyFile):
        * wtf/posix/FileSystemPOSIX.cpp:
        (WTF::FileSystemImpl::hardLink):
        (WTF::FileSystemImpl::hardLinkOrCopyFile):
        * wtf/win/FileSystemWin.cpp:
        (WTF::FileSystemImpl::hardLink):
        (WTF::FileSystemImpl::hardLinkOrCopyFile):
        Added hardLink. Let hardLinkOrCopyFile use the hardLink.

2019-05-10  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] Remove "private:" from Noncopyable and Nonmovable macros
        https://bugs.webkit.org/show_bug.cgi?id=197767

        Reviewed by Saam Barati.

        We no longer need "private:".

        * wtf/Noncopyable.h:
        * wtf/Nonmovable.h:

2019-05-08  Zan Dobersek  <zdobersek@igalia.com>

        [GLib] Rework WPE RunLoopSourcePriority values
        https://bugs.webkit.org/show_bug.cgi?id=197167

        Reviewed by Carlos Garcia Campos.

        The GLib priorities for the WPE port were initially aligned on the -70
        value, theory being that this would help avoid any default-priority
        GSources spawned in different dependency libraries affecting our
        scheduling. Today it seems that extra caution might not be really
        necessary.

        This change aligns the base priority value with GLib's default priority
        value of 0. We maintain the relativity of priority values by effectively
        increasing each priority by 70.

        * wtf/glib/RunLoopSourcePriority.h:

2019-05-08  Alex Christensen  <achristensen@webkit.org>

        Add SPI to set HSTS storage directory
        https://bugs.webkit.org/show_bug.cgi?id=197259

        Reviewed by Brady Eidson.

        * wtf/Platform.h:

2019-05-08  Keith Miller  <keith_miller@apple.com>

        Remove Gigacage from arm64 and use PAC for arm64e instead
        https://bugs.webkit.org/show_bug.cgi?id=197110

        Reviewed by Saam Barati.

        This patch changes the Gigacage to use PAC on arm64e. As part of
        this process all platforms must provide their length when
        materializing the caged pointer. Since it would be somewhat
        confusing to have two parameters for an operator [] those methods
        have been removed. Lastly, this patch removes the specializations
        for void* caged pointers, instead opting to use enable_if on the
        methods that would normally fail on void* e.g. anything that
        returns a T&.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/CagedPtr.h:
        (WTF::CagedPtr::CagedPtr):
        (WTF::CagedPtr::get const):
        (WTF::CagedPtr::getMayBeNull const):
        (WTF::CagedPtr::getUnsafe const):
        (WTF::CagedPtr::at const):
        (WTF::CagedPtr::reauthenticate):
        (WTF::CagedPtr::operator=):
        (WTF::CagedPtr::operator== const):
        (WTF::CagedPtr::operator bool const):
        (WTF::CagedPtr::operator* const): Deleted.
        (WTF::CagedPtr::operator-> const): Deleted.
        (WTF::CagedPtr::operator[] const): Deleted.
        (): Deleted.
        * wtf/CagedUniquePtr.h:
        (WTF::CagedUniquePtr::CagedUniquePtr):
        (WTF::CagedUniquePtr::create):
        (WTF::CagedUniquePtr::~CagedUniquePtr):
        (WTF::CagedUniquePtr::destroy):
        (): Deleted.
        * wtf/Gigacage.h:
        (Gigacage::cagedMayBeNull):
        * wtf/PtrTag.h:
        (WTF::tagArrayPtr):
        (WTF::untagArrayPtr):
        (WTF::removeArrayPtrTag):
        (WTF::retagArrayPtr):
        * wtf/TaggedArrayStoragePtr.h: Copied from Source/JavaScriptCore/runtime/ArrayBufferView.cpp.
        (WTF::TaggedArrayStoragePtr::TaggedArrayStoragePtr):
        (WTF::TaggedArrayStoragePtr::get const):
        (WTF::TaggedArrayStoragePtr::getUnsafe const):
        (WTF::TaggedArrayStoragePtr::resize):
        (WTF::TaggedArrayStoragePtr::operator bool const):

2019-05-08  Robin Morisset  <rmorisset@apple.com>

        WTF::TimingScope should show the total duration and not just the mean
        https://bugs.webkit.org/show_bug.cgi?id=197672

        Reviewed by Alex Christensen.

        * wtf/TimingScope.cpp:
        (WTF::TimingScope::scopeDidEnd):

2019-05-07  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] LLIntPrototypeLoadAdaptiveStructureWatchpoint does not require Bag<>
        https://bugs.webkit.org/show_bug.cgi?id=197645

        Reviewed by Saam Barati.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Nonmovable.h: Copied from Source/JavaScriptCore/bytecode/LLIntPrototypeLoadAdaptiveStructureWatchpoint.h.
        * wtf/Vector.h:
        (WTF::minCapacity>::uncheckedConstructAndAppend):

2019-05-07  Eric Carlson  <eric.carlson@apple.com>

        Define media buffering policy
        https://bugs.webkit.org/show_bug.cgi?id=196979
        <rdar://problem/28383861>

        Reviewed by Jer Noble.

        * wtf/Platform.h:

2019-05-07  Robin Morisset  <rmorisset@apple.com>

        WTF::BitVector should have an isEmpty() method
        https://bugs.webkit.org/show_bug.cgi?id=197637

        Reviewed by Keith Miller.

        * wtf/BitVector.cpp:
        (WTF::BitVector::isEmptySlow const):
        * wtf/BitVector.h:
        (WTF::BitVector::isEmpty const):

2019-05-07  Brent Fulgham  <bfulgham@apple.com>

        Correct JSON parser to address unterminated escape character
        https://bugs.webkit.org/show_bug.cgi?id=197582
        <rdar://problem/50459177>

        Reviewed by Alex Christensen.

        Correct JSON parser code to properly deal with unterminated escape
        characters.

        * wtf/JSONValues.cpp:
        (WTF::JSONImpl::decodeString):
        (WTF::JSONImpl::parseStringToken):

2019-05-07  Alex Christensen  <achristensen@webkit.org>

        Add a release assertion that Functions can only be constructed from non-null CompletionHandlers
        https://bugs.webkit.org/show_bug.cgi?id=197641

        Reviewed by Chris Dumez.

        This will help us find the cause of rdar://problem/48679972 by seeing the crash when the Function is dispatched,
        not when it's called with no interesting stack trace.  I manually verified this assertion is hit in such a case.
        We should also have no legitimate use of creating a Function out of a null CompletionHandler then never calling it.

        * wtf/CompletionHandler.h:
        (WTF::Detail::CallableWrapper<CompletionHandler<Out):
        * wtf/Function.h:
        (WTF::Detail::CallableWrapperBase::~CallableWrapperBase):
        (WTF::Detail::CallableWrapper::CallableWrapper):
        (WTF::Function<Out):

2019-05-06  Christopher Reid  <chris.reid@sony.com>

        [JSC] Respect already defined USE_LLINT_EMBEDDED_OPCODE_ID compiler variable.
        https://bugs.webkit.org/show_bug.cgi?id=197633

        Reviewed by Don Olmstead.

        When the variable `USE_LLINT_EMBEDDED_OPCODE_ID` is defined, stop defining
        its value with platform default one.

        * wtf/Platform.h:

2019-05-03  Sihui Liu  <sihui_liu@apple.com>

        Add assertion to check whether shm files have maximum FileProtection of CompleteUnlessOpen
        https://bugs.webkit.org/show_bug.cgi?id=197390
        <rdar://problem/42685773>

        Reviewed by Geoffrey Garen.

        * wtf/FileSystem.cpp:
        (WTF::FileSystemImpl::isSafeToUseMemoryMapForPath):
        (WTF::FileSystemImpl::makeSafeToUseMemoryMapForPath):
        * wtf/FileSystem.h:
        * wtf/cocoa/FileSystemCocoa.mm:
        (WTF::FileSystemImpl::isSafeToUseMemoryMapForPath):
        (WTF::FileSystemImpl::makeSafeToUseMemoryMapForPath):

2019-05-03  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r244881.
        https://bugs.webkit.org/show_bug.cgi?id=197559

        Breaks compilation of jsconly on linux, breaking compilation
        for jsc-i386-ews, jsc-mips-ews and jsc-armv7-ews (Requested by
        guijemont on #webkit).

        Reverted changeset:

        "[CMake] Refactor WEBKIT_MAKE_FORWARDING_HEADERS into
        WEBKIT_COPY_FILES"
        https://bugs.webkit.org/show_bug.cgi?id=197174
        https://trac.webkit.org/changeset/244881

2019-05-02  Alex Christensen  <achristensen@webkit.org>

        Mark U+01C0 as a homograph of U+006C
        https://bugs.webkit.org/show_bug.cgi?id=197526
        <rdar://problem/50301904>

        Reviewed by Tim Horton.

        * wtf/URLHelpers.cpp:
        (WTF::URLHelpers::isLookalikeCharacter):

2019-05-02  Don Olmstead  <don.olmstead@sony.com>

        [CMake] Refactor WEBKIT_MAKE_FORWARDING_HEADERS into WEBKIT_COPY_FILES
        https://bugs.webkit.org/show_bug.cgi?id=197174

        Reviewed by Alex Christensen.

        Replace WEBKIT_MAKE_FORWARDING_HEADERS with WEBKIT_COPY_FILES.

        * wtf/CMakeLists.txt:

2019-05-01  Darin Adler  <darin@apple.com>

        WebKit has too much of its own UTF-8 code and should rely more on ICU's UTF-8 support
        https://bugs.webkit.org/show_bug.cgi?id=195535

        Reviewed by Alexey Proskuryakov.

        * wtf/text/AtomicString.cpp:
        (WTF::AtomicString::fromUTF8Internal): Added code to compute string length when the
        end is nullptr; this behavior used to be implemented inside the
        calculateStringHashAndLengthFromUTF8MaskingTop8Bits function.

        * wtf/text/AtomicStringImpl.cpp:
        (WTF::HashAndUTF8CharactersTranslator::translate): Updated for change to
        convertUTF8ToUTF16.

        * wtf/text/AtomicStringImpl.h: Took the WTF_EXPORT_PRIVATE off of the
        AtomicStringImpl::addUTF8 function. This is used only inside a non-inlined function in
        the AtomicString class and its behavior changed subtly in this patch; it's helpful
        to document that it's not exported.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::utf8Impl): Don't pass "true" for strictness to convertUTF16ToUTF8
        since strict is the default. Also updated for changes to ConversionResult.
        (WTF::StringImpl::utf8ForCharacters): Updated for change to convertLatin1ToUTF8.
        (WTF::StringImpl::tryGetUtf8ForRange const): Ditto.

        * wtf/text/StringView.cpp: Removed uneeded include of UTF8Conversion.h.

        * wtf/text/WTFString.cpp:
        (WTF::String::fromUTF8): Updated for change to convertUTF8ToUTF16.

        * wtf/unicode/UTF8Conversion.cpp:
        (WTF::Unicode::inlineUTF8SequenceLengthNonASCII): Deleted.
        (WTF::Unicode::inlineUTF8SequenceLength): Deleted.
        (WTF::Unicode::UTF8SequenceLength): Deleted.
        (WTF::Unicode::decodeUTF8Sequence): Deleted.
        (WTF::Unicode::convertLatin1ToUTF8): Use U8_APPEND, enabling us to remove
        almost everything in the function. Also changed resturn value to be a boolean
        to indicate success since there is only one possible failure (target exhausted).
        There is room for further simplification, since most callers have lengths rather
        than end pointers for the source buffer, and all but one caller supplies a buffer
        size known to be sufficient, so those don't need a return value, nor do they need
        to pass an end of buffer pointer.
        (WTF::Unicode::convertUTF16ToUTF8): Use U_IS_LEAD, U_IS_TRAIL,
        U16_GET_SUPPLEMENTARY, U_IS_SURROGATE, and U8_APPEND. Also changed behavior
        for non-strict mode so that unpaired surrogates will be turned into the
        replacement character instead of invalid UTF-8 sequences, because U8_APPEND
        won't create an invalid UTF-8 sequence, and because we don't need to do that
        for any good reason at any call site.
        (WTF::Unicode::isLegalUTF8): Deleted.
        (WTF::Unicode::readUTF8Sequence): Deleted.
        (WTF::Unicode::convertUTF8ToUTF16): Use U8_NEXT instead of
        inlineUTF8SequenceLength, isLegalUTF8, and readUTF8Sequence. Use
        U16_APPEND instead of lots of code that does the same thing. There is
        room for further simplification since most callers don't need the "all ASCII"
        feature and could probably pass the arguments in a more natural way.
        (WTF::Unicode::calculateStringHashAndLengthFromUTF8MaskingTop8Bits):
        Use U8_NEXT instead of isLegalUTF8, readUTF8Sequence, and various
        error handling checks for things that are handled by U8_NEXT. Also removed
        support for passing nullptr for end to specify a null-terminated string.
        (WTF::Unicode::equalUTF16WithUTF8): Ditto.

        * wtf/unicode/UTF8Conversion.h: Removed UTF8SequenceLength and
        decodeUTF8Sequence. Changed the ConversionResult to match WebKit coding
        style, with an eye toward perhaps removing it in the future. Changed
        the convertUTF8ToUTF16 return value to a boolean and removed the "strict"
        argument since no caller was passing false. Changed the convertLatin1ToUTF8
        return value to a boolean. Tweaked comments.

2019-05-01  Shawn Roberts  <sroberts@apple.com>

        Unreviewed, rolling out r244821.

        Causing

        Reverted changeset:

        "WebKit has too much of its own UTF-8 code and should rely
        more on ICU's UTF-8 support"
        https://bugs.webkit.org/show_bug.cgi?id=195535
        https://trac.webkit.org/changeset/244821

2019-05-01  Shawn Roberts  <sroberts@apple.com>

        Unreviewed, rolling out r244822.

        Causing 4 Test262 failures on JSC Release and Debug

        Reverted changeset:

        https://trac.webkit.org/changeset/244822 https://trac.webkit.org/changeset/244821

2019-04-29  Darin Adler  <darin@apple.com>

        WebKit has too much of its own UTF-8 code and should rely more on ICU's UTF-8 support
        https://bugs.webkit.org/show_bug.cgi?id=195535

        Reviewed by Alexey Proskuryakov.

        * wtf/text/AtomicString.cpp:
        (WTF::AtomicString::fromUTF8Internal): Added code to compute string length when the
        end is nullptr; this behavior used to be implemented inside the
        calculateStringHashAndLengthFromUTF8MaskingTop8Bits function.

        * wtf/text/AtomicStringImpl.cpp:
        (WTF::HashAndUTF8CharactersTranslator::translate): Updated for change to
        convertUTF8ToUTF16.

        * wtf/text/AtomicStringImpl.h: Took the WTF_EXPORT_PRIVATE off of the
        AtomicStringImpl::addUTF8 function. This is used only inside a non-inlined function in
        the AtomicString class and its behavior changed subtly in this patch; it's helpful
        to document that it's not exported.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::utf8Impl): Don't pass "true" for strictness to convertUTF16ToUTF8
        since strict is the default. Also updated for changes to ConversionResult.
        (WTF::StringImpl::utf8ForCharacters): Updated for change to convertLatin1ToUTF8.
        (WTF::StringImpl::tryGetUtf8ForRange const): Ditto.

        * wtf/text/StringView.cpp: Removed uneeded include of UTF8Conversion.h.

        * wtf/text/WTFString.cpp:
        (WTF::String::fromUTF8): Updated for change to convertUTF8ToUTF16.

        * wtf/unicode/UTF8Conversion.cpp:
        (WTF::Unicode::inlineUTF8SequenceLengthNonASCII): Deleted.
        (WTF::Unicode::inlineUTF8SequenceLength): Deleted.
        (WTF::Unicode::UTF8SequenceLength): Deleted.
        (WTF::Unicode::decodeUTF8Sequence): Deleted.
        (WTF::Unicode::convertLatin1ToUTF8): Use U8_APPEND, enabling us to remove
        almost everything in the function. Also changed resturn value to be a boolean
        to indicate success since there is only one possible failure (target exhausted).
        There is room for further simplification, since most callers have lengths rather
        than end pointers for the source buffer, and all but one caller supplies a buffer
        size known to be sufficient, so those don't need a return value, nor do they need
        to pass an end of buffer pointer.
        (WTF::Unicode::convertUTF16ToUTF8): Use U_IS_LEAD, U_IS_TRAIL,
        U16_GET_SUPPLEMENTARY, U_IS_SURROGATE, and U8_APPEND. Also changed behavior
        for non-strict mode so that unpaired surrogates will be turned into the
        replacement character instead of invalid UTF-8 sequences, because U8_APPEND
        won't create an invalid UTF-8 sequence, and because we don't need to do that
        for any good reason at any call site.
        (WTF::Unicode::isLegalUTF8): Deleted.
        (WTF::Unicode::readUTF8Sequence): Deleted.
        (WTF::Unicode::convertUTF8ToUTF16): Use U8_NEXT instead of
        inlineUTF8SequenceLength, isLegalUTF8, and readUTF8Sequence. Use
        U16_APPEND instead of lots of code that does the same thing. There is
        room for further simplification since most callers don't need the "all ASCII"
        feature and could probably pass the arguments in a more natural way.
        (WTF::Unicode::calculateStringHashAndLengthFromUTF8MaskingTop8Bits):
        Use U8_NEXT instead of isLegalUTF8, readUTF8Sequence, and various
        error handling checks for things that are handled by U8_NEXT. Also removed
        support for passing nullptr for end to specify a null-terminated string.
        (WTF::Unicode::equalUTF16WithUTF8): Ditto.

        * wtf/unicode/UTF8Conversion.h: Removed UTF8SequenceLength and
        decodeUTF8Sequence. Changed the ConversionResult to match WebKit coding
        style, with an eye toward perhaps removing it in the future. Changed
        the convertUTF8ToUTF16 return value to a boolean and removed the "strict"
        argument since no caller was passing false. Changed the convertLatin1ToUTF8
        return value to a boolean. Tweaked comments.

2019-04-30  John Wilander  <wilander@apple.com>

        Add logging of Ad Click Attribution errors and events to a dedicated channel
        https://bugs.webkit.org/show_bug.cgi?id=197332
        <rdar://problem/49918800>

        Reviewed by Youenn Fablet.

        Added missing RELEASE_LOG_INFO and RELEASE_LOG_INFO_IF dummies
        for RELEASE_LOG_DISABLED.

        * wtf/Assertions.h:

2019-04-30  Youenn Fablet  <youenn@apple.com>

        Make Document audio producers use WeakPtr
        https://bugs.webkit.org/show_bug.cgi?id=197382

        Reviewed by Eric Carlson.

        * wtf/WeakHashSet.h:
        (WTF::WeakHashSet::hasNullReferences const):

2019-04-30  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r244773.
        https://bugs.webkit.org/show_bug.cgi?id=197436

        Causing assertion failures on debug queues (Requested by
        ShawnRoberts on #webkit).

        Reverted changeset:

        "Make Document audio producers use WeakPtr"
        https://bugs.webkit.org/show_bug.cgi?id=197382
        https://trac.webkit.org/changeset/244773

2019-04-30  Youenn Fablet  <youenn@apple.com>

        Make Document audio producers use WeakPtr
        https://bugs.webkit.org/show_bug.cgi?id=197382

        Reviewed by Eric Carlson.

        * wtf/WeakHashSet.h:
        (WTF::WeakHashSet::hasNullReferences const):

2019-04-29  Alex Christensen  <achristensen@webkit.org>

        <rdar://problem/50299396> Fix internal High Sierra build
        https://bugs.webkit.org/show_bug.cgi?id=197388

        * Configurations/Base.xcconfig:

2019-04-29  Yusuke Suzuki  <ysuzuki@apple.com>

        JITStubRoutineSet wastes 180KB of HashTable capacity on can.com
        https://bugs.webkit.org/show_bug.cgi?id=186732

        Reviewed by Saam Barati.

        * wtf/Range.h:
        (WTF::Range::contains const):

2019-04-29  Basuke Suzuki  <Basuke.Suzuki@sony.com>

        [Win] Add flag to enable version information stamping and disable by default.
        https://bugs.webkit.org/show_bug.cgi?id=197249
        <rdar://problem/50224412>

        Reviewed by Ross Kirsling.

        This feature is only used in AppleWin port. Add flag for this task and make it OFF by default.
        Then enable it by default on AppleWin.

        * wtf/CMakeLists.txt:

2019-04-26  Don Olmstead  <don.olmstead@sony.com>

        Add WTF::findIgnoringASCIICaseWithoutLength to replace strcasestr
        https://bugs.webkit.org/show_bug.cgi?id=197291

        Reviewed by Konstantin Tokarev.

        Adds an implementation of strcasestr within WTF.

        * wtf/text/StringCommon.h:
        (WTF::findIgnoringASCIICaseWithoutLength):

2019-04-26  Sihui Liu  <sihui_liu@apple.com>

        Stop IDB transactions to release locked database files when network process is ready to suspend
        https://bugs.webkit.org/show_bug.cgi?id=196372
        <rdar://problem/48930116>

        Reviewed by Brady Eidson.

        Provide a method to suspend the thread and block main thread until the thread is suspended.

        * wtf/CrossThreadTaskHandler.cpp:
        (WTF::CrossThreadTaskHandler::taskRunLoop):
        (WTF::CrossThreadTaskHandler::suspendAndWait):
        (WTF::CrossThreadTaskHandler::resume):
        * wtf/CrossThreadTaskHandler.h:

2019-04-25  Fujii Hironori  <Hironori.Fujii@sony.com>

        Unreviewed, rolling out r244669.

        Windows ports can't clean build.

        Reverted changeset:

        "[Win] Add flag to enable version information stamping and
        disable by default."
        https://bugs.webkit.org/show_bug.cgi?id=197249
        https://trac.webkit.org/changeset/244669

2019-04-25  Basuke Suzuki  <Basuke.Suzuki@sony.com>

        [Win] Add flag to enable version information stamping and disable by default.
        https://bugs.webkit.org/show_bug.cgi?id=197249

        Reviewed by Ross Kirsling.

        This feature is only used in AppleWin port. Add flag for this task and make it OFF by default.
        Then enable it by default on AppleWin.

        * wtf/CMakeLists.txt:

2019-04-25  Timothy Hatcher  <timothy@apple.com>

        Disable date and time inputs on iOSMac.
        https://bugs.webkit.org/show_bug.cgi?id=197287
        rdar://problem/46794376

        Reviewed by Wenson Hsieh.

        * wtf/FeatureDefines.h:

2019-04-25  Alex Christensen  <achristensen@webkit.org>

        Fix High Sierra build after r244653
        https://bugs.webkit.org/show_bug.cgi?id=197131

        * wtf/StdLibExtras.h:
        High Sierra thinks __cplusplus is 201406 even when using C++17.
        Removing the __cplusplus check resolves the build failure on High Sierra.
        We can clean up StdLibExtras more later.

2019-04-25  Alex Christensen  <achristensen@webkit.org>

        Start using C++17
        https://bugs.webkit.org/show_bug.cgi?id=197131

        Reviewed by Darin Adler.

        * Configurations/Base.xcconfig:
        * wtf/CMakeLists.txt:
        * wtf/Variant.h:
        (WTF::switchOn):

2019-04-25  Alex Christensen  <achristensen@webkit.org>

        Remove DeprecatedOptional
        https://bugs.webkit.org/show_bug.cgi?id=197161

        Reviewed by Darin Adler.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/DeprecatedOptional.h: Removed.

2019-04-24  Carlos Garcia Campos  <cgarcia@igalia.com>

        [GTK] Hardcoded text color in input fields
        https://bugs.webkit.org/show_bug.cgi?id=126907

        Reviewed by Michael Catanzaro.

        Define HAVE_OS_DARK_MODE_SUPPORT for GTK port.

        * wtf/Platform.h:

2019-04-24  Tim Horton  <timothy_horton@apple.com>

        Clean up WKActionSheetAssistant's use of LaunchServices
        https://bugs.webkit.org/show_bug.cgi?id=194645
        <rdar://problem/47707952>

        Reviewed by Andy Estes.

        * wtf/Platform.h:

2019-04-24  chris fleizach  <cfleizach@apple.com>

        AX: Remove deprecated Accessibility Object Model events
        https://bugs.webkit.org/show_bug.cgi?id=197073
        <rdar://problem/50027819>

        Reviewed by Ryosuke Niwa.

        * wtf/Platform.h:

2019-04-23  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r244558.
        https://bugs.webkit.org/show_bug.cgi?id=197219

        Causing crashes on iOS Sim Release and Debug (Requested by
        ShawnRoberts on #webkit).

        Reverted changeset:

        "Remove DeprecatedOptional"
        https://bugs.webkit.org/show_bug.cgi?id=197161
        https://trac.webkit.org/changeset/244558

2019-04-23  Alex Christensen  <achristensen@webkit.org>

        Remove DeprecatedOptional
        https://bugs.webkit.org/show_bug.cgi?id=197161

        Reviewed by Darin Adler.

        This was added in r209326 to be compatible with a shipping version of Safari.
        We have released several versions of Safari since then, so do what the comments say and remove it.
        The existence of this std::optional makes migrating to C++17 harder, and there's no reason to keep it.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/DeprecatedOptional.h: Removed.

2019-04-21  Zan Dobersek  <zdobersek@igalia.com>

        [WTF] Generic memoryFootprint() implementation should use bmalloc on Linux
        https://bugs.webkit.org/show_bug.cgi?id=196963

        Reviewed by Don Olmstead.

        Have the generic memoryFootprint() implementation use bmalloc's
        memoryFootprint() API on Linux, whenever the system malloc option is
        not enabled. Limitation to Linux platforms is due to the bmalloc
        implementation being limited to those configurations (excluding iOS
        which doesn't use MemoryFootprintGeneric.cpp).

        * wtf/PlatformWPE.cmake: Switch to building MemoryFootprintGeneric.cpp.
        * wtf/generic/MemoryFootprintGeneric.cpp:
        (WTF::memoryFootprint):

2019-04-19  Ryosuke Niwa  <rniwa@webkit.org>

        HashTable::removeIf always shrinks the hash table by half even if there is nothing left
        https://bugs.webkit.org/show_bug.cgi?id=196681
        <rdar://problem/49917764>

        Reviewed by Darin Adler.

        Address Darin's comments by removing the explicit type from std::max.

        * wtf/HashTable.h:
        (WTF::KeyTraits>::computeBestTableSize):
        (WTF::KeyTraits>::shrinkToBestSize):

2019-04-18  Chris Dumez  <cdumez@apple.com>

        [iOS] Improve detection of when web views go to background / foreground
        https://bugs.webkit.org/show_bug.cgi?id=197035
        <rdar://problem/45281182>

        Reviewed by Tim Horton.

        Add build time flag.

        * wtf/FeatureDefines.h:

2019-04-18  Jer Noble  <jer.noble@apple.com>

        Add support for parsing FairPlayStreaming PSSH boxes.
        https://bugs.webkit.org/show_bug.cgi?id=197064

        Reviewed by Eric Carlson.

        * wtf/Platform.h:

2019-04-18  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] StringBuilder should set correct m_is8Bit flag when merging
        https://bugs.webkit.org/show_bug.cgi?id=197053

        Reviewed by Saam Barati.

        When appending StringBuilder to the other StringBuilder, we have a path that does not set m_is8Bit flag correctly.
        This patch correctly sets this flag. And we also change 0 to nullptr when we are using 0 as a pointer.

        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::reserveCapacity):
        (WTF::StringBuilder::appendUninitializedSlow):
        (WTF::StringBuilder::append):
        * wtf/text/StringBuilder.h:
        (WTF::StringBuilder::append):
        (WTF::StringBuilder::characters8 const):
        (WTF::StringBuilder::characters16 const):
        (WTF::StringBuilder::clear):

2019-04-17  Tim Horton  <timothy_horton@apple.com>

        Adopt different scroll view flashing SPI
        https://bugs.webkit.org/show_bug.cgi?id=197043
        <rdar://problem/49996476>

        Reviewed by Wenson Hsieh.

        * wtf/Platform.h:

2019-04-17  Jer Noble  <jer.noble@apple.com>

        Enable HAVE_AVFOUNDATION_VIDEO_OUTPUT on PLATFORM(IOSMAC)
        https://bugs.webkit.org/show_bug.cgi?id=196994
        <rdar://problem/44158331>

        Reviewed by Alex Christensen.

        * wtf/Platform.h:

2019-04-16  Stephan Szabo  <stephan.szabo@sony.com>

        [PlayStation] Update port for system library changes
        https://bugs.webkit.org/show_bug.cgi?id=196978

        Reviewed by Ross Kirsling.

        * wtf/PlatformPlayStation.cmake:
        Remove reference to deleted system library

2019-04-16  Jer Noble  <jer.noble@apple.com>

        Enable HAVE_AVKIT on PLATFORM(IOSMAC)
        https://bugs.webkit.org/show_bug.cgi?id=196987

        Reviewed by Tim Horton.

        * wtf/Platform.h:

2019-04-16  Robin Morisset  <rmorisset@apple.com>

        [WTF] holdLock should be marked WARN_UNUSED_RETURN
        https://bugs.webkit.org/show_bug.cgi?id=196922

        Reviewed by Keith Miller.

        * wtf/Locker.h:

2019-04-16  Don Olmstead  <don.olmstead@sony.com>

        [CMake] Set WTF_SCRIPTS_DIR
        https://bugs.webkit.org/show_bug.cgi?id=196917

        Reviewed by Konstantin Tokarev.

        Use WTF_SCRIPTS_DIR for copying the unified sources script.

        * wtf/CMakeLists.txt:

2019-04-15  Myles C. Maxfield  <mmaxfield@apple.com>

        [Cocoa] FontPlatformData objects aren't cached at all when using font-family:system-ui
        https://bugs.webkit.org/show_bug.cgi?id=196846
        <rdar://problem/49499971>

        Reviewed by Simon Fraser and Darin Adler.

        * wtf/RetainPtr.h:
        (WTF::safeCFEqual):
        (WTF::safeCFHash):

2019-04-12  Ryosuke Niwa  <rniwa@webkit.org>

        HashTable::removeIf always shrinks the hash table by half even if there is nothing left
        https://bugs.webkit.org/show_bug.cgi?id=196681

        Reviewed by Darin Adler.

        Made HashTable::removeIf shrink to the "best size", which is the least power of two bigger
        than twice the key count as already used in the copy constructor.

        * wtf/HashTable.h:
        (WTF::HashTable::computeBestTableSize): Extracted from the copy constructor.
        (WTF::HashTable::shrinkToBestSize): Added.
        (WTF::HashTable::removeIf): Use shrinkToBestSize instead of shrink.
        (WTF::HashTable::HashTable):

2019-04-12  Eric Carlson  <eric.carlson@apple.com>

        Update AudioSession route sharing policy
        https://bugs.webkit.org/show_bug.cgi?id=196776
        <rdar://problem/46501611>

        Reviewed by Jer Noble.

        * wtf/Platform.h: Define HAVE_ROUTE_SHARING_POLICY_LONG_FORM_VIDEO.

2019-04-10  Said Abou-Hallawa  <sabouhallawa@apple.com>

        requestAnimationFrame should execute before the next frame
        https://bugs.webkit.org/show_bug.cgi?id=177484

        Reviewed by Simon Fraser.

        Add trace points for the page RenderingUpdate.

        * wtf/SystemTracing.h:

2019-04-10  Claudio Saavedra  <csaavedra@igalia.com>

        Do not generate empty unified sources when unified builds are disabled
        https://bugs.webkit.org/show_bug.cgi?id=196767

        Reviewed by Konstantin Tokarev.

        If unified builds are disabled, the ruby script to generate them
        is still used to list the sources that need to be
        compiled. Currently, the script always generates bundled unified
        sources, even if it's being used just to list all the sources. So
        when the unified builds are disabled and no files are going to be
        bundled, the script generates one empty file per bundle manager
        (that is, one C++ and one ObjectiveC), that gets added to the
        sources to be compiled.

        * Scripts/generate-unified-source-bundles.rb: Only go through the
        bundle managers file generation when not running in
        PrintAllSources mode, to avoid generating empty bundle files.

2019-04-10  Enrique Ocaña González  <eocanha@igalia.com>

        [WPE] Avoid async IO starving timers
        https://bugs.webkit.org/show_bug.cgi?id=196733

        Reviewed by Carlos Garcia Campos.

        If AsyncIONetwork and DiskCacheRead priorities are higher than
        MainThreadSharedTimer the timers get starved. This causes the NetworkProcess
        to accumulate MB of data instead of handing it down to the WebProcess (done
        using a Timer). This eventually causes an Out Of Memory kill on the
        NetworkProcess on some embedded platforms with low memory limits.

        This patch levels the three priorities to the same value, while still leaving
        DiskCacheWrite with less priority than DiskCacheRead.

        * wtf/glib/RunLoopSourcePriority.h: Changed RunLoopSourcePriority values for WPE.

2019-04-09  Don Olmstead  <don.olmstead@sony.com>

        [CMake] WTF derived sources should only be referenced inside WTF
        https://bugs.webkit.org/show_bug.cgi?id=196706

        Reviewed by Konstantin Tokarev.

        Use ${WTF_DERIVED_SOURCES_DIR} instead of ${DERIVED_SOURCES_DIR} within WTF.

        * wtf/CMakeLists.txt:
        * wtf/PlatformJSCOnly.cmake:
        * wtf/PlatformMac.cmake:

2019-04-09  Don Olmstead  <don.olmstead@sony.com>

        [CMake] Apple builds should use ICU_INCLUDE_DIRS
        https://bugs.webkit.org/show_bug.cgi?id=196720

        Reviewed by Konstantin Tokarev.

        Copy ICU headers for Apple builds into ICU_INCLUDE_DIRS.

        * CMakeLists.txt:
        * wtf/PlatformMac.cmake:

2019-04-08  Don Olmstead  <don.olmstead@sony.com>

        [CMake][WinCairo] Separate copied headers into different directories
        https://bugs.webkit.org/show_bug.cgi?id=196655

        Reviewed by Michael Catanzaro.

        * wtf/CMakeLists.txt:

2019-04-08  Guillaume Emont  <guijemont@igalia.com>

        Enable DFG on MIPS
        https://bugs.webkit.org/show_bug.cgi?id=196689

        Reviewed by Žan Doberšek.

        Since the bytecode change, we enabled the baseline JIT on mips in
        r240432, but DFG is still missing. With this change, all tests are
        passing on a ci20 board.

        * wtf/Platform.h: Enable DFG on MIPS by default.

2019-04-06  Ryosuke Niwa  <rniwa@webkit.org>

        Added tests for WeakHashSet::computesEmpty and WeakHashSet::computeSize
        https://bugs.webkit.org/show_bug.cgi?id=196669

        Reviewed by Geoffrey Garen.

        Removed the superflous type names from forward declarations, and made WeakHashSet::add
        take a const object to match other container types in WTF.

        * wtf/WeakHashSet.h:
        (WTF::WeakHashSet::add):
        * wtf/WeakPtr.h:

2019-04-05  Ryosuke Niwa  <rniwa@webkit.org>

        Make WeakPtr<Element> possible and deploy it in form associated elements code
        https://bugs.webkit.org/show_bug.cgi?id=196626

        Reviewed by Antti Koivisto.

        Make it possible to call WeakHashSet::remove and WeakHashSet::contains with
        a subclass type U of a type T used to define WeakReference<T>.

        Also added computesEmpty, which is slightly more efficient than computeSize
        when m_set is either empty or when there are non-released weak references in the set.

        * wtf/WeakHashSet.h:
        (WTF::WeakHashSet::remove):
        (WTF::WeakHashSet::contains const):
        (WTF::WeakHashSet::computesEmpty const): Added.
        * wtf/WeakPtr.h: Added an explicit forward declaration of WeakHashSet to avoid
        build failures in GTK+ and WPE ports.

2019-04-05  Eric Carlson  <eric.carlson@apple.com>

        Remove AUDIO_TOOLBOX_AUDIO_SESSION
        https://bugs.webkit.org/show_bug.cgi?id=196653
        <rdar://problem/49652098>

        Reviewed by Jer Noble.

        * wtf/Platform.h:

2019-04-05  Michael Catanzaro  <mcatanzaro@igalia.com>

        Unreviewed manual rollout of r243929
        https://bugs.webkit.org/show_bug.cgi?id=196626

        * wtf/WeakHashSet.h:
        (WTF::WeakHashSet::remove):
        (WTF::WeakHashSet::contains const):
        (WTF::WeakHashSet::computesEmpty const): Deleted.

2019-04-05  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r243833.
        https://bugs.webkit.org/show_bug.cgi?id=196645

        This change breaks build of WPE and GTK ports (Requested by
        annulen on #webkit).

        Reverted changeset:

        "[CMake][WTF] Mirror XCode header directories"
        https://bugs.webkit.org/show_bug.cgi?id=191662
        https://trac.webkit.org/changeset/243833

2019-04-05  Ryosuke Niwa  <rniwa@webkit.org>

        Make WeakPtr<Element> possible and deploy it in form associated elements code
        https://bugs.webkit.org/show_bug.cgi?id=196626

        Reviewed by Antti Koivisto.

        Make it possible to call WeakHashSet::remove and WeakHashSet::contains with
        a subclass type U of a type T used to define WeakReference<T>.

        Also added computesEmpty, which is slightly more efficient than computeSize
        when m_set is either empty or when there are non-released weak references in the set.

        * wtf/WeakHashSet.h:
        (WTF::WeakHashSet::remove):
        (WTF::WeakHashSet::contains const):
        (WTF::WeakHashSet::computesEmpty const): Added.

2019-04-04  Yusuke Suzuki  <ysuzuki@apple.com>

        [WebCore] Put most of derived classes of ScriptWrappable into IsoHeap
        https://bugs.webkit.org/show_bug.cgi?id=196475

        Reviewed by Saam Barati.

        * wtf/ForbidHeapAllocation.h:
        * wtf/IsoMalloc.h:
        * wtf/IsoMallocInlines.h:

2019-04-03  Don Olmstead  <don.olmstead@sony.com>

        [CMake][WTF] Mirror XCode header directories
        https://bugs.webkit.org/show_bug.cgi?id=191662

        Reviewed by Konstantin Tokarev.

        Rename WTF forwarding header target to WTFFramework and update the install location
        to WTF_FRAMEWORK_HEADERS_DIR.

        * wtf/CMakeLists.txt:

2019-04-03  Joseph Pecoraro  <pecoraro@apple.com>

        Web Inspector: Remote Inspector indicate callback should always happen on the main thread
        https://bugs.webkit.org/show_bug.cgi?id=196513
        <rdar://problem/49498284>

        Reviewed by Devin Rousso.

        * wtf/MainThread.h:
        * wtf/cocoa/MainThreadCocoa.mm:
        (WTF::dispatchAsyncOnMainThreadWithWebThreadLockIfNeeded):
        * wtf/ios/WebCoreThread.cpp:
        * wtf/ios/WebCoreThread.h:

2019-04-02  Keith Rollin  <krollin@apple.com>

        Inhibit CFNetwork logging in private sessions
        https://bugs.webkit.org/show_bug.cgi?id=196268
        <rdar://problem/48210793>

        Fix a conditional in Platform.h where IOS should have been used
        instead of IOS_FAMILY. The latter happened to work, but we really want
        to be using the proper symbol here.

        Reviewed by Alexey Proskuryakov.

        * wtf/Platform.h:

2019-04-01  Michael Catanzaro  <mcatanzaro@igalia.com>

        Stop trying to support building JSC with clang 3.8
        https://bugs.webkit.org/show_bug.cgi?id=195947
        <rdar://problem/49069219>

        Reviewed by Darin Adler.

        It seems WebKit hasn't built with clang 3.8 in a while, no devs are using this compiler, we
        don't know how much effort it would be to make JSC work again, and it's making the code
        worse. Remove my hacks to support clang 3.8 from WTF.

        * wtf/MetaAllocator.cpp:
        (WTF::MetaAllocator::allocate):
        * wtf/text/StringConcatenate.h:
        (WTF::tryMakeStringFromAdapters):

2019-03-31  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Butterfly allocation from LargeAllocation should try "realloc" behavior if collector thread is not active
        https://bugs.webkit.org/show_bug.cgi?id=196160

        Reviewed by Saam Barati.

        * wtf/FastMalloc.h:
        (WTF::FastMalloc::tryRealloc):
        * wtf/Gigacage.cpp:
        (Gigacage::tryRealloc):
        * wtf/Gigacage.h:

2019-03-31  Andy Estes  <aestes@apple.com>

        [iOS] WebKit should consult the navigation response policy delegate before previewing a QuickLook document
        https://bugs.webkit.org/show_bug.cgi?id=196433
        <rdar://problem/49293305>

        Reviewed by Tim Horton.

        * wtf/NeverDestroyed.h:
        (WTF::NeverDestroyed::operator->):
        (WTF::NeverDestroyed::operator-> const):

2019-03-28  Fujii Hironori  <Hironori.Fujii@sony.com>

        Unreviewed build fix.

        * wtf/CMakeLists.txt: Added SpanningTree.h to WTF_PUBLIC_HEADERS.

2019-03-28  Saam Barati  <sbarati@apple.com>

        BackwardsGraph needs to consider back edges as the backward's root successor
        https://bugs.webkit.org/show_bug.cgi?id=195991

        Reviewed by Filip Pizlo.

        Previously, our backwards graph analysis was slightly wrong. The idea of
        backwards graph is that the root of the graph has edges to terminals in
        the original graph. And then the original directed edges in the graph are flipped.
        
        However, we weren't considering loops as a form of terminality. For example,
        we wouldn't consider an infinite loop as a terminal. So there were no edges
        from the root to a node in the infinite loop. This lead us to make mistakes
        when we used backwards dominators to compute control flow equivalence.
        
        This is better understood in an example:
        
        ```
        preheader:
        while (1) {
            if (!isCell(v))
                continue;
            load structure ID
            if (cond)
               continue;
            return
        }
        ```
        
        In the previous version of this algorithm, the only edge from the backwards
        root would be to the block containing the return. This would lead us to
        believe that the loading of the structureID backwards dominates the preheader,
        leading us to believe it's control flow equivalent to preheader. This is
        obviously wrong, since we can loop forever if "v" isn't a cell.
        
        The solution here is to treat any backedge in the graph as a "terminal" node.
        Since a backedge implies the existence of a loop.
        
        In the above example, the backwards root now has an edge to both blocks with
        "continue". This prevents us from falsely claiming that the return is control
        flow equivalent with the preheader.
        
        This patch uses DFS spanning trees to compute back edges. An edge
        u->v is a back edge when u is a descendent of v in the DFS spanning
        tree of the Graph.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/BackwardsGraph.h:
        (WTF::BackwardsGraph::BackwardsGraph):
        * wtf/SpanningTree.h: Added.
        (SpanningTree::SpanningTree):
        (SpanningTree::isDescendent):

2019-03-28  Tim Horton  <timothy_horton@apple.com>

        Un-fix the build

        * wtf/Platform.h:
        It is no longer necessary to exclude this from PLATFORM(IOSMAC).

2019-03-27  Per Arne Vollan  <pvollan@apple.com>

        Layout Test js/math-clz32.html is failing
        https://bugs.webkit.org/show_bug.cgi?id=196209

        Reviewed by Ross Kirsling.

        Use the correct number of loop iterations when counting leading zeros. Also, the
        count was off by one for the Win64 case.

        * wtf/MathExtras.h:
        (WTF::clz):

2019-03-26  Keith Rollin  <krollin@apple.com>

        Inhibit CFNetwork logging in private sessions
        https://bugs.webkit.org/show_bug.cgi?id=196268
        <rdar://problem/48210793>

        Reviewed by Alex Christensen.

        Before performing any logging, the NetworkProcess checks to see if
        it's performing an operation associated with a private (ephemeral)
        browsing session. If so, it skips the logging. However, networking
        layers below the NetworkProcess don't know about private browsing, so
        they would still perform their own logging. CFNetwork now has a flag
        that lets us control that, so set it to False if private browsing.

        * wtf/Platform.h:

2019-03-25  Alex Christensen  <achristensen@webkit.org>

        Expected shouldn't assume its contained types are copyable
        https://bugs.webkit.org/show_bug.cgi?id=195986

        Reviewed by JF Bastien.

        * wtf/Expected.h:
        (std::experimental::fundamentals_v3::__expected_detail::constexpr_base::constexpr_base):
        (std::experimental::fundamentals_v3::operator==):
        (std::experimental::fundamentals_v3::operator!=):
        * wtf/Unexpected.h:
        (std::experimental::fundamentals_v3::unexpected::unexpected):

2019-03-24  Keith Miller  <keith_miller@apple.com>

        Unreviewed, forgot to refactor variable name for windows build in
        r243418.

        * wtf/MathExtras.h:
        (WTF::clz):
        (WTF::ctz):

2019-03-24  Andy Estes  <aestes@apple.com>

        [watchOS] Remove unused Proximity Networking code
        https://bugs.webkit.org/show_bug.cgi?id=196188

        Reviewed by Tim Horton.

        * wtf/FeatureDefines.h:

2019-03-23  Keith Miller  <keith_miller@apple.com>

        Refactor clz/ctz and fix getLSBSet.
        https://bugs.webkit.org/show_bug.cgi?id=196162

        Reviewed by Saam Barati.

        This patch makes clz32/64 and ctz32 generic so they work on any
        numeric type. Since these methods work on any type we don't need
        to have a separate implementation of getLSBSet, which also
        happened to be getMSBSet. This patch also adds getMSBSet as there
        may be users who want that in the future.

        * wtf/MathExtras.h:
        (WTF::clz):
        (WTF::ctz):
        (WTF::getLSBSet):
        (WTF::getMSBSet):
        (getLSBSet): Deleted.
        (WTF::clz32): Deleted.
        (WTF::clz64): Deleted.
        (WTF::ctz32): Deleted.

2019-03-22  Keith Rollin  <krollin@apple.com>

        Enable ThinLTO support in Production builds
        https://bugs.webkit.org/show_bug.cgi?id=190758
        <rdar://problem/45413233>

        Reviewed by Daniel Bates.

        Enable building with Thin LTO in Production when using Xcode 10.2 or
        later. This change results in a 1.45% progression in PLT5. Full
        Production build times increase about 2-3%. Incremental build times
        are more severely affected, and so LTO is not enabled for local
        engineering builds.

        LTO is enabled only on macOS for now, until rdar://problem/49013399,
        which affects ARM builds, is fixed.

        To change the LTO setting when building locally:

        - If building with `make`, specify WK_LTO_MODE={none,thin,full} on the
          command line.
        - If building with `build-webkit`, specify --lto-mode={none,thin,full}
          on the command line.
        - If building with `build-root`, specify --lto={none,thin,full} on the
          command line.
        - If building with Xcode, create a LocalOverrides.xcconfig file at the
          top level of your repository directory (if needed) and define
          WK_LTO_MODE to full, thin, or none.

        * Configurations/Base.xcconfig:

2019-03-22  Tim Horton  <timothy_horton@apple.com>

        Fix the build after r243354

        * wtf/Platform.h:

2019-03-22  Tim Horton  <timothy_horton@apple.com>

        Fix the build after r243354
        https://bugs.webkit.org/show_bug.cgi?id=196138
        <rdar://problem/49145951>

        * wtf/Platform.h:

2019-03-21  Eric Carlson  <eric.carlson@apple.com>

        Add UI process WebRTC runtime logging.
        https://bugs.webkit.org/show_bug.cgi?id=196020
        <rdar://problem/49071443>

        Reviewed by Youenn Fablet.

        * wtf/Logger.h:
        (WTF::LogArgument::toString): Add long long and unsigned long long variants.

2019-03-20  Simon Fraser  <simon.fraser@apple.com>

        Rename ENABLE_ACCELERATED_OVERFLOW_SCROLLING macro to ENABLE_OVERFLOW_SCROLLING_TOUCH
        https://bugs.webkit.org/show_bug.cgi?id=196049

        Reviewed by Tim Horton.

        This macro is about the -webkit-overflow-scrolling CSS property, not accelerated
        overflow scrolling in general, so rename it.

        * wtf/FeatureDefines.h:

2019-03-20  Mark Lam  <mark.lam@apple.com>

        Open source arm64e code.
        https://bugs.webkit.org/show_bug.cgi?id=196012
        <rdar://problem/49066237>

        Reviewed by Keith Miller.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/BlockPtr.h:
        * wtf/Platform.h:
        * wtf/PlatformRegisters.cpp: Added.
        (WTF::threadStateLRInternal):
        (WTF::threadStatePCInternal):
        * wtf/PlatformRegisters.h:
        * wtf/PointerPreparations.h:
        * wtf/PtrTag.cpp: Added.
        (WTF::tagForPtr):
        (WTF::ptrTagName):
        (WTF::registerPtrTagLookup):
        (WTF::reportBadTag):
        * wtf/PtrTag.h:
        (WTF::removeCodePtrTag):
        (WTF::tagCodePtrImpl):
        (WTF::tagCodePtr):
        (WTF::untagCodePtrImplHelper):
        (WTF::untagCodePtrImpl):
        (WTF::untagCodePtr):
        (WTF::retagCodePtrImplHelper):
        (WTF::retagCodePtrImpl):
        (WTF::retagCodePtr):
        (WTF::tagCFunctionPtrImpl):
        (WTF::tagCFunctionPtr):
        (WTF::untagCFunctionPtrImpl):
        (WTF::untagCFunctionPtr):
        (WTF::tagInt):
        (WTF::assertIsCFunctionPtr):
        (WTF::assertIsNullOrCFunctionPtr):
        (WTF::assertIsNotTagged):
        (WTF::assertIsTagged):
        (WTF::assertIsNullOrTagged):
        (WTF::isTaggedWith):
        (WTF::assertIsTaggedWith):
        (WTF::assertIsNullOrTaggedWith):
        (WTF::usesPointerTagging):
        (WTF::registerPtrTagLookup):
        (WTF::reportBadTag):
        (WTF::tagForPtr): Deleted.

2019-03-20  Keith Rollin  <krollin@apple.com>

        Update checks that determine if WebKit is system WebKit
        https://bugs.webkit.org/show_bug.cgi?id=195756

        Reviewed by Alexey Proskuryakov.

        The system WebKit can be installed in additional locations, so check
        for and allow those, too.

        * wtf/Platform.h:

2019-03-20  Michael Catanzaro  <mcatanzaro@igalia.com>

        Unreviewed, further attempt to fix clang 3.8 build
        https://bugs.webkit.org/show_bug.cgi?id=195947

        * wtf/MetaAllocator.cpp:
        (WTF::MetaAllocator::allocate):

2019-03-20  Michael Catanzaro  <mcatanzaro@igalia.com>

        REGRESSION(r243115) breaks build for clang 3.8
        https://bugs.webkit.org/show_bug.cgi?id=195947

        Reviewed by Chris Dumez.

        * wtf/text/StringConcatenate.h:
        (WTF::tryMakeStringFromAdapters):

2019-03-20  Tim Horton  <timothy_horton@apple.com>

        Add an platform-driven spell-checking mechanism
        https://bugs.webkit.org/show_bug.cgi?id=195795

        Reviewed by Ryosuke Niwa.

        * wtf/Platform.h:
        Add an ENABLE flag.

2019-03-19  Michael Catanzaro  <mcatanzaro@igalia.com>

        Build cleanly with GCC 9
        https://bugs.webkit.org/show_bug.cgi?id=195920

        Reviewed by Chris Dumez.

        WebKit triggers three new GCC 9 warnings:

        """
        -Wdeprecated-copy, implied by -Wextra, warns about the C++11 deprecation of implicitly
        declared copy constructor and assignment operator if one of them is user-provided.
        """

        Solution is to either add a copy constructor or copy assignment operator, if required, or
        else remove one if it is redundant.

        """
        -Wredundant-move, implied by -Wextra, warns about redundant calls to std::move.
        -Wpessimizing-move, implied by -Wall, warns when a call to std::move prevents copy elision.
        """

        These account for most of this patch. Solution is to just remove the bad WTFMove().

        Additionally, -Wclass-memaccess has been enhanced to catch a few cases that GCC 8 didn't.
        These are solved by casting nontrivial types to void* before using memcpy. (Of course, it
        would be safer to not use memcpy on nontrivial types, but that's too complex for this
        patch. Searching for memcpy used with static_cast<void*> will reveal other cases to fix.)

        * wtf/CheckedArithmetic.h:
        (WTF::Checked::Checked):
        * wtf/MetaAllocator.cpp:
        (WTF::MetaAllocator::allocate):
        * wtf/URLParser.cpp:
        (WTF::CodePointIterator::operator!= const):
        (WTF::CodePointIterator::operator=): Deleted.
        * wtf/text/StringView.h:
        (WTF::StringView::CodePoints::Iterator::operator=): Deleted.

2019-03-19  Alex Christensen  <achristensen@webkit.org>

        Make WTFLogChannelState and WTFLogLevel enum classes
        https://bugs.webkit.org/show_bug.cgi?id=195904

        Reviewed by Eric Carlson.

        * wtf/Assertions.cpp:
        * wtf/Assertions.h:
        * wtf/Logger.h:
        (WTF::Logger::logAlways const):
        (WTF::Logger::error const):
        (WTF::Logger::warning const):
        (WTF::Logger::info const):
        (WTF::Logger::debug const):
        (WTF::Logger::willLog const):
        (WTF::Logger::log):
        * wtf/MemoryPressureHandler.cpp:
        * wtf/RefCountedLeakCounter.cpp:

2019-03-19  Michael Catanzaro  <mcatanzaro@igalia.com>

        Unreviewed, rolling out r243132.

        Broke GTK build

        Reverted changeset:

        "Make WTFLogChannelState and WTFLogLevel enum classes"
        https://bugs.webkit.org/show_bug.cgi?id=195904
        https://trac.webkit.org/changeset/243132

2019-03-18  Alex Christensen  <achristensen@webkit.org>

        Make WTFLogChannelState and WTFLogLevel enum classes
        https://bugs.webkit.org/show_bug.cgi?id=195904

        Reviewed by Eric Carlson.

        * wtf/Assertions.cpp:
        * wtf/Assertions.h:
        * wtf/Logger.h:
        (WTF::Logger::logAlways const):
        (WTF::Logger::error const):
        (WTF::Logger::warning const):
        (WTF::Logger::info const):
        (WTF::Logger::debug const):
        (WTF::Logger::willLog const):
        (WTF::Logger::log):
        * wtf/MemoryPressureHandler.cpp:
        * wtf/RefCountedLeakCounter.cpp:

2019-03-18  Darin Adler  <darin@apple.com>

        Cut down on use of StringBuffer, possibly leading toward removing it entirely
        https://bugs.webkit.org/show_bug.cgi?id=195870

        Reviewed by Daniel Bates.

        * wtf/URL.cpp: Remove a now-inaccurate comment mentioning StringBuffer.

        * wtf/text/StringView.cpp:
        (WTF::convertASCIICase): Use createUninitialized instead of StringBuffer.

2019-03-18  Xan Lopez  <xan@igalia.com>

        [WTF] Remove redundant std::move in StringConcatenate
        https://bugs.webkit.org/show_bug.cgi?id=195798

        Reviewed by Darin Adler.

        Remove redundant calls to WTFMove in return values for this
        method. C++ will already do an implicit move here since we are
        returning a local value where copy/move elision is not applicable.

        * wtf/text/StringConcatenate.h:
        (WTF::tryMakeStringFromAdapters):

2019-03-16  Darin Adler  <darin@apple.com>

        Improve normalization code, including moving from unorm.h to unorm2.h
        https://bugs.webkit.org/show_bug.cgi?id=195330

        Reviewed by Michael Catanzaro.

        * wtf/URLHelpers.cpp: Removed unneeded include of unorm.h since the
        normalization code is now in StringView.cpp.
        (WTF::URLHelpers::escapeUnsafeCharacters): Renamed from
        createStringWithEscapedUnsafeCharacters since it now only creates
        a new string if one is needed. Use unsigned for string lengths, since
        that's what WTF::String uses, not size_t. Added a first loop so that
        we can return the string unmodified if no lookalike characters are
        found. Removed unnecessary round trip from UTF-16 and then back in
        the case where the character is not a lookalike.
        (WTF::URLHelpers::toNormalizationFormC): Deleted. Moved this logic
        into the WTF::normalizedNFC function in StringView.cpp.
        (WTF::URLHelpers::userVisibleURL): Call escapeUnsafeCharacters and
        normalizedNFC. The normalizedNFC function is better in multiple ways,
        but primarily it handles 8-bit strings and other already-normalized
        strings much more efficiently.

        * wtf/text/StringView.cpp:
        (WTF::normalizedNFC): Added. This has two overloads. One is for when
        we already have a String, and want to re-use it if no normalization
        is needed, and another is when we only have a StringView, and may need
        to allocate a String to hold the result. Includes a fast special case
        for 8-bit and already-normalized strings, and uses the same strategy
        that JSC::normalize was already using: calls unorm2_normalize twice,
        first just to determine the length.

        * wtf/text/StringView.h: Added normalizedNFC, which can be called with
        either a StringView or a String. Also moved StringViewWithUnderlyingString
        here from JSString.h, here for use as the return value of normalizedNFC;
        it is used for a similar purpose in the JavaScriptCore rope implementation.
        Also removed an inaccurate comment.

2019-03-16  Diego Pino Garcia  <dpino@igalia.com>

        [GTK] [WPE] Fix compilation errors due to undefined ALWAYS_LOG_IF
        https://bugs.webkit.org/show_bug.cgi?id=195850

        Unreviewed build fix after r243033. 

        * wtf/LoggerHelper.h:

2019-03-15  Per Arne Vollan  <pvollan@apple.com>

        [iOS] Block the accessibility server when accessibility is not enabled.
        https://bugs.webkit.org/show_bug.cgi?id=195342

        Reviewed by Brent Fulgham.

        Add SPI to issue a mach extension to a process by pid. Also, add a macro for
        the availability of this SPI.

        * wtf/Platform.h:
        * wtf/spi/darwin/SandboxSPI.h:

2019-03-15  Eric Carlson  <eric.carlson@apple.com>

        Add media stream release logging
        https://bugs.webkit.org/show_bug.cgi?id=195823

        Reviewed by Youenn Fablet.

        * wtf/LoggerHelper.h: Add LOG_IF variants that check a condition before logging.

2019-03-15  Truitt Savell  <tsavell@apple.com>

        Unreviewed, rolling out r243008.

        This revision broke High Sierra builders

        Reverted changeset:

        "[iOS] Block the accessibility server when accessibility is
        not enabled."
        https://bugs.webkit.org/show_bug.cgi?id=195342
        https://trac.webkit.org/changeset/243008

2019-03-15  Per Arne Vollan  <pvollan@apple.com>

        [iOS] Block the accessibility server when accessibility is not enabled.
        https://bugs.webkit.org/show_bug.cgi?id=195342

        Reviewed by Brent Fulgham.

        Add SPI to issue a mach extension to a process by pid.

        * wtf/spi/darwin/SandboxSPI.h:

2019-03-13  Sam Weinig  <sam@webkit.org>

        Add utility function to allow easy reverse range-based iteration of a container
        https://bugs.webkit.org/show_bug.cgi?id=195542

        Reviewed by Antti Koivisto.

        Add functions to create an IteratorRange<T> that will iterate a container backwards. It
        works with any container that is compatible with std::rbegin() and std::rend(). It is
        expected to be used in conjunction with range-based for-loops like so:

        for (auto& value : WTF::makeReversedRange(myContainer)) 
            ...

        * wtf/IteratorRange.h:
        (WTF::makeReversedRange):

2019-03-13  Keith Rollin  <krollin@apple.com>

        Add support for new StagedFrameworks layout
        https://bugs.webkit.org/show_bug.cgi?id=195543

        Reviewed by Alexey Proskuryakov.

        Opportunistic cleanup: remove unused JAVASCRIPTCORE_FRAMEWORKS_DIR
        variable.

        * Configurations/Base.xcconfig:

2019-03-13  Dominik Infuehr  <dinfuehr@igalia.com>

        String overflow when using StringBuilder in JSC::createError
        https://bugs.webkit.org/show_bug.cgi?id=194957

        Reviewed by Mark Lam.

        When calculating the new capacity of a StringBuilder object,
        use a limit of MaxLength instead of MaxLength+1.  Allocating
        a string of size MaxLength+1 always fails. This means that expanding
        a StringBuilder only worked when the newly doubled capacity is less or
        equal to MaxLength.

        * wtf/text/StringBuilder.cpp:

2019-03-13  Chris Dumez  <cdumez@apple.com>

        Better build fix after r242901.

        Reviewed by Jer Noble.

        * wtf/Logger.h:
        (WTF::LogArgument::toString):

2019-03-13  Jer Noble  <jer.noble@apple.com>

        Add AggregateLogger, a Logger specialization for singleton classes.
        https://bugs.webkit.org/show_bug.cgi?id=195644

        Reviewed by Eric Carlson.

        Add a new class, AggregateLogger, which will log messages to each of its aggregated loggers.

        Drive-by fixes: allow "const void*" to be directly logged by converting the pointer to a hex string.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/AggregateLogger.h: Added.
        (WTF::AggregateLogger::create):
        (WTF::AggregateLogger::addLogger):
        (WTF::AggregateLogger::removeLogger):
        (WTF::AggregateLogger::logAlways const):
        (WTF::AggregateLogger::error const):
        (WTF::AggregateLogger::warning const):
        (WTF::AggregateLogger::info const):
        (WTF::AggregateLogger::debug const):
        (WTF::AggregateLogger::willLog const):
        (WTF::AggregateLogger::AggregateLogger):
        (WTF::AggregateLogger::log const):
        * wtf/CMakeLists.h:
        * wtf/Logger.cpp:
        (WTF::>::toString):
        * wtf/Logger.h:

2019-03-12  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r242747.
        https://bugs.webkit.org/show_bug.cgi?id=195641

        Performance measurement is difficult in this period, rolling
        out it and rolling in later to isolate it from the other
        sensitive patches (Requested by yusukesuzuki on #webkit).

        Reverted changeset:

        "[JSC] Make StaticStringImpl & StaticSymbolImpl actually
        static"
        https://bugs.webkit.org/show_bug.cgi?id=194212
        https://trac.webkit.org/changeset/242747

2019-03-12  Robin Morisset  <rmorisset@apple.com>

        A lot more classes have padding that can be reduced by reordering their fields
        https://bugs.webkit.org/show_bug.cgi?id=195579

        Reviewed by Mark Lam.

        * wtf/CrossThreadQueue.h:
        * wtf/Logger.h:
        * wtf/MemoryPressureHandler.h:
        * wtf/MetaAllocator.h:
        * wtf/Threading.cpp:

2019-03-11  Alex Christensen  <achristensen@webkit.org>

        WTF::Expected should use std::addressof instead of operator&
        https://bugs.webkit.org/show_bug.cgi?id=195604

        Reviewed by Myles Maxfield.

        The latter was causing problems with types that do tricky things with constructors and operator&,
        specifically UniqueRef but I made a reduced test case.  When it used operator&, it would get the contained
        type and call the constructor that takes a contained type instead of the move constructor.

        * wtf/Expected.h:
        (std::experimental::fundamentals_v3::__expected_detail::base::base):
        (std::experimental::fundamentals_v3::expected::swap):

2019-03-11  Ross Kirsling  <ross.kirsling@sony.com>

        Add Optional to Forward.h.
        https://bugs.webkit.org/show_bug.cgi?id=195586

        Reviewed by Darin Adler.

        * wtf/Forward.h:
        Add forward declaration for Optional.

        * wtf/CPUTime.h:
        * wtf/Expected.h:
        * wtf/MainThread.h:
        * wtf/MemoryFootprint.h:
        * wtf/URLHelpers.cpp:
        * wtf/URLHelpers.h:
        * wtf/cocoa/CPUTimeCocoa.cpp:
        * wtf/fuchsia/CPUTimeFuchsia.cpp:
        * wtf/unix/CPUTimeUnix.cpp:
        * wtf/win/CPUTimeWin.cpp:
        Remove unnecessary includes from headers.

2019-03-11  Andy Estes  <aestes@apple.com>

        [Apple Pay] Use PKPaymentAuthorizationController to present the Apple Pay UI remotely from the Networking service on iOS
        https://bugs.webkit.org/show_bug.cgi?id=195530
        <rdar://problem/48747164>

        Reviewed by Alex Christensen.

        * wtf/FeatureDefines.h: Defined ENABLE_APPLE_PAY_REMOTE_UI.

2019-03-11  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Make StaticStringImpl & StaticSymbolImpl actually static
        https://bugs.webkit.org/show_bug.cgi?id=194212

        Reviewed by Mark Lam.

        Avoid mutation onto refcounts if `isStatic()` returns true so that the content of StaticStringImpl never gets modified.

        * wtf/text/StringImpl.h:
        (WTF::StringImpl::ref):
        (WTF::StringImpl::deref):

2019-03-11  Sihui Liu  <sihui_liu@apple.com>

        Crash under WebCore::IDBDatabase::connectionToServerLost
        https://bugs.webkit.org/show_bug.cgi?id=195563
        <rdar://problem/37193655>

        CrossThreadTask should protect callee if it is ThreadSafeRefCounted.

        Reviewed by Geoffrey Garen.

        * wtf/CrossThreadTask.h:
        (WTF::createCrossThreadTask):

2019-03-11  Ryan Haddad  <ryanhaddad@apple.com>

        Unreviewed, rolling out r242688, r242643, r242624.

        Caused multiple layout test failures and crashes on iOS and macOS.

        Reverted changeset:

        "requestAnimationFrame should execute before the next frame"
        https://bugs.webkit.org/show_bug.cgi?id=177484
        https://trac.webkit.org/changeset/242624/webkit

        * wtf/SystemTracing.h:

2019-03-11  Darin Adler  <darin@apple.com>

        Specify fixed precision explicitly to prepare to change String::number and StringBuilder::appendNumber floating point behavior
        https://bugs.webkit.org/show_bug.cgi?id=195533

        Reviewed by Brent Fulgham.

        Soon, we will change String::number and StringBuilder::appendNumber for floating
        point to use "shortest form" serialization instead of the current default, which is
        "6-digit fixed precision stripping trailing zeros". To prepare to do this safely
        without accidentally changing any behavior, changing callers to call the explicit
        versions. Later, we may want to return and change many of them to use shortest form
        instead, but that may require rebaselining tests, and in some extreme cases, getting
        rid of flawed logic that converts between different single and double precision
        floating point; such problems may be hidden by fixed precision serialization.

        Since "shortest form" is already the behavior for AtomicString::number and
        for makeString, no changes required for clients of either of those.

        * wtf/Logger.h:
        (WTF::LogArgument::toString): Use numberToStringFixedPrecision.
        * wtf/MediaTime.cpp:
        (WTF::MediaTime::toString const): Use appendFixedPrecisionNumber.
        * wtf/text/ValueToString.h:
        (WTF::ValueToString<float>::string): Use numberToStringFixedPrecision.
        (WTF::ValueToString<double>::string): Ditto.

2019-03-11  Truitt Savell  <tsavell@apple.com>

        Unreviewed, rolling out r242702.

        Broke High Sierra builders.

        Reverted changeset:

        "Add utility function to allow easy reverse range-based
        iteration of a container"
        https://bugs.webkit.org/show_bug.cgi?id=195542
        https://trac.webkit.org/changeset/242702

2019-03-11  Sam Weinig  <sam@webkit.org>

        Add utility function to allow easy reverse range-based iteration of a container
        https://bugs.webkit.org/show_bug.cgi?id=195542

        Reviewed by Antti Koivisto.

        Add functions to create an IteratorRange<T> that will iterate a container backwards. It
        works with any container that is compatible with std::rbegin() and std::rend(). It is
        expected to be used in conjunction with range-based for-loops like so:

        for (auto& value : WTF::makeReversedRange(myContainer)) 
            ...

        * wtf/IteratorRange.h:
        (WTF::makeReversedRange):

2019-03-10  Yusuke Suzuki <utatane.tea@gmail.com> and Fujii Hironori  <Hironori.Fujii@sony.com>

        [WTF] Align assumption in RunLoopWin to the other platform's RunLoop
        https://bugs.webkit.org/show_bug.cgi?id=181151

        Reviewed by Don Olmstead.

        This patch fixes RunLoop in Windows to align it to the implementations in the other platforms
        to use RunLoop more aggressively.

        * wtf/RunLoop.h:
        (WTF::RunLoop::Timer::Timer):
        * wtf/win/MainThreadWin.cpp:
        (initializeMainThreadPlatform): Call RunLoop::registerRunLoopMessageWindowClass.
        * wtf/win/RunLoopWin.cpp:
        (WTF::RunLoop::wndProc):
        (WTF::RunLoop::iterate):
        (WTF::RunLoop::stop):
        PostQuitMessage is only available in the RunLoop's thread. We should post a message and call
        it inside this task.

        (WTF::RunLoop::registerRunLoopMessageWindowClass):
        Changed the return type from bool to void, and added RELEASE_ASSERT to check the return value of RegisterClass.

        (WTF::RunLoop::~RunLoop):
        When the RunLoop's thread is freed, its associated window is freed. We do not need to do here.

        (WTF::RunLoop::TimerBase::timerFired):
        (WTF::RunLoop::TimerBase::TimerBase):
        (WTF::RunLoop::TimerBase::start):
        (WTF::RunLoop::TimerBase::stop):
        (WTF::RunLoop::TimerBase::isActive const):
        (WTF::RunLoop::TimerBase::secondsUntilFire const):
        (WTF::generateTimerID): Deleted.
        We can use TimerBase's pointer as ID since it is uintptr_t.

2019-03-07  Said Abou-Hallawa  <sabouhallawa@apple.com>

        requestAnimationFrame should execute before the next frame
        https://bugs.webkit.org/show_bug.cgi?id=177484

        Reviewed by Simon Fraser.

        Add trace points for the page RenderingUpdate.

        * wtf/SystemTracing.h:

2019-03-06  Ross Kirsling  <ross.kirsling@sony.com>

        [Win] Remove -DUCHAR_TYPE=wchar_t stopgap and learn to live with char16_t.
        https://bugs.webkit.org/show_bug.cgi?id=195346

        Reviewed by Fujii Hironori.

        * wtf/PlatformWin.cmake:
        * wtf/text/AtomicString.h:
        (WTF::AtomicString::AtomicString):
        * wtf/text/WTFString.h:
        (WTF::String::String):
        * wtf/text/win/StringWin.cpp: Added.
        (WTF::String::wideCharacters const): Renamed from WTF::stringToNullTerminatedWChar.
        * wtf/text/win/WCharStringExtras.h:
        (WTF::ucharFrom):
        (WTF::wcharFrom):
        (WTF::stringToNullTerminatedWChar): Deleted.
        (WTF::wcharToString): Deleted.
        (WTF::nullTerminatedWCharToString): Deleted.
        Add static_assert-guarded reinterpret_cast wrappers for going between UChar* and wchar_t*.
        Move existing to/from-String helpers into the String (and AtomicString) class(es).

        * wtf/win/FileSystemWin.cpp:
        (WTF::FileSystemImpl::getFindData):
        (WTF::FileSystemImpl::getFinalPathName):
        (WTF::FileSystemImpl::createSymbolicLink):
        (WTF::FileSystemImpl::deleteFile):
        (WTF::FileSystemImpl::deleteEmptyDirectory):
        (WTF::FileSystemImpl::moveFile):
        (WTF::FileSystemImpl::pathByAppendingComponent):
        (WTF::FileSystemImpl::fileSystemRepresentation):
        (WTF::FileSystemImpl::makeAllDirectories):
        (WTF::FileSystemImpl::pathGetFileName):
        (WTF::FileSystemImpl::storageDirectory):
        (WTF::FileSystemImpl::generateTemporaryPath):
        (WTF::FileSystemImpl::openTemporaryFile):
        (WTF::FileSystemImpl::openFile):
        (WTF::FileSystemImpl::hardLinkOrCopyFile):
        (WTF::FileSystemImpl::deleteNonEmptyDirectory):
        * wtf/win/LanguageWin.cpp:
        (WTF::localeInfo):
        * wtf/win/PathWalker.cpp:
        (WTF::PathWalker::PathWalker):
        Use wchar helpers as needed.

2019-02-28  Ryosuke Niwa  <rniwa@webkit.org>

        Add WeakHashSet
        https://bugs.webkit.org/show_bug.cgi?id=195152

        Reviewed by Antti Koivisto.

        Added WeakHashSet which is a HashSet of WeakPtr. When the object pointed by WeakPtr is deleted,
        WeakHashSet treats the key to be no longer in the set. That is, WeakHashSet::contains returns false
        and const_iterator skips such a WeakPtr in the set.

        We decided not to make HashSet<WeahPtr<T>> work because it involves weird semantics such as making
        find(X) delete the table entry as remove(find(X)) would be a no-op otherwise as find(X) would return
        necessarily need to return HashSet<WeakPtr<T>>::end().

        Furthermore, we cannot determine the true size of this set in O(1) because the objected pointed by
        some of WeakPtr in the set may have already been deleted. This has implications that we can't have
        size(), isEmpty(), random(), etc... as O(1) operation.

        WeakHashSet is implemented as HashSet<WeakReference<T>>. HashTable::rehash has been updated to delete
        WeakReference<T>'s whose m_ptr has become null, and HashTable::expand first deletes any such entry
        before deciding an actual expansion is needed. This is accomplished via newly added hash trait,
        hasIsReleasedWeakValueFunction, and HashTraits<Ref<WeakReference<T>>>::isReleasedWeakValue which
        returns true for when WeakReference<T> pointed by Ref<WeakReference<T>> has null m_ptr, not to be
        confused with Ref<WeakReference<T>> itself pointing to a null WeakReference<T>.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Forward.h:
        * wtf/HashSet.h:
        (WTF::HashSet<T, U, V>::checkConsistency const): Added.
        * wtf/HashTable.h:
        (WTF::HashTable::isReleasedWeakBucket): Added.
        (WTF::HashTable::expand): Delete WeakReference<T> with null m_ptr first. This updates m_keyCount
        and may make mustRehashInPlace() return true.
        (WTF::HashTable::deleteReleasedWeakBuckets): Added.
        (WTF::HashTable::rehash): Delete WeakReference<T> with null m_ptr. Also refactored the code a bit
        to avoid keep repeating oldTable[i].
        * wtf/HashTraits.h:
        (WTF::HashTraits<T>::isHashTraitsReleasedWeakValue): Added.
        (WTF::RefHashTraits<T>): Extracted from HashTraits<Ref<P>> to share code with
        HashTraits<Ref<WeakReference<T>>>.
        (WTF::HashTraitsReleasedWeakValueChecker<Traits, hasIsReleasedWeakValueFunction>): Added.
        (WTF::isHashTraitsReleasedWeakValue<Traits, hasIsReleasedWeakValueFunction>): Added.
        * wtf/WeakHashSet.h: Added.
        (WTF::WeakHashSet): Added.
        (WTF::WeakHashSet::WeakHashSetConstIterator::WeakHashSetConstIterator):
        (WTF::WeakHashSet::WeakHashSetConstIterator::get const):
        (WTF::WeakHashSet::WeakHashSetConstIterator::operator* const):
        (WTF::WeakHashSet::WeakHashSetConstIterator::operator-> const):
        (WTF::WeakHashSet::WeakHashSetConstIterator::operator++):
        (WTF::WeakHashSet::WeakHashSetConstIterator::skipEmptyBuckets):
        (WTF::WeakHashSet::WeakHashSetConstIterator::operator== const):
        (WTF::WeakHashSet::WeakHashSetConstIterator::operator!= const):
        (WTF::WeakHashSet::WeakHashSet):
        (WTF::WeakHashSet::begin const):
        (WTF::WeakHashSet::end const):
        (WTF::WeakHashSet::add):
        (WTF::WeakHashSet::remove):
        (WTF::WeakHashSet::contains const):
        (WTF::WeakHashSet::capacity const):
        (WTF::WeakHashSet::computeSize const): Deletes any WeakReference<T> with null m_ptr first.
        (WTF::WeakHashSet::checkConsistency const):
        (WTF::HashTraits<Ref<WeakReference<T>>>): Added. This hash traits triggers the new code in HashTable's
        expand and rehash methods to delete WeakReference<T> with null m_ptr.
        (WTF::HashTraits<Ref<WeakReference<T>>>::isReleasedWeakValue):
        * wtf/WeakPtr.h:
        (WTF::WeakReference::~WeakReference): Added so that we can keep track the number of live WeakReference
        in API tests by template specializations.

2019-03-03  Darin Adler  <darin@apple.com>

        Prepare to improve handling of conversion of float to strings
        https://bugs.webkit.org/show_bug.cgi?id=195262

        Reviewed by Daniel Bates.

        * wtf/dtoa.cpp:
        (WTF::truncateTrailingZeros): Renamed from
        formatStringTruncatingTrailingZerosIfNeeded and removed the calls
        to double_conversion::StringBuilder::Finalizer, since the caller
        already does that.
        (WTF::numberToFixedPrecisionString): Added an overload for float
        and updated to use the new truncateTrailingZeros.
        (WTF::numberToFixedWidthString): Added an overload for float.

        * wtf/text/AtomicString.cpp:
        (WTF::AtomicString::number): Added float overload. This is a
        behavior change, but in all cases for the better. The old behavior
        was to convert to double first and then do "shortest form"
        conversion, and it's always better to just do that as float.
        * wtf/text/AtomicString.h: Added float overload of AtomicString::number.

        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::appendFixedPrecisionNumber): Added float
        overload.
        (WTF::StringBuilder::appendShortestFormNumber): Renamed from
        appendECMAScriptNumber and did the above.
        (WTF::StringBuilder::appendFixedWidthNumber): Ditto.
        * wtf/text/StringBuilder.h: Added overloads for float and
        appendShortestFormNumber. The appendNumber and appendECMAScriptNumber
        functions are now inlines in the header, since they are expressed
        entirely in terms of the other functions.

        * wtf/text/WTFString.cpp:
        (WTF::String::numberToStringFixedPrecision): Added float overload.
        Removed unnecessary explicit conversion to String.
        (WTF::String::numberToStringShortest): Renamed from
        numberToStringECMAScript and did the above.
        (WTF::String::numberToStringFixedWidth): Ditto.

        * wtf/text/WTFString.h: Added overloads for float and
        numberToStringShortest. The number and numberToStringECMAScript
        functions are now inlines in the header, since they are expressed
        entirely in terms of the other functions.

2019-03-04  Andy Estes  <aestes@apple.com>

        [Apple Pay] Move WebPaymentCoordinatorProxy from Source/WebKit/UIProcess to Source/WebKit/Shared
        https://bugs.webkit.org/show_bug.cgi?id=195080
        <rdar://problem/48421558>

        Reviewed by Antti Koivisto.

        * wtf/FeatureDefines.h:

2019-03-04  Michael Catanzaro  <mcatanzaro@igalia.com>

        URLHelpers should use unorm2_quickCheck before converting to NFC
        https://bugs.webkit.org/show_bug.cgi?id=194272

        Reviewed by Darin Adler.

        If the string is already in normalization form C, don't try to normalize it.

        * wtf/URLHelpers.cpp:
        (WTF::URLHelpers::toNormalizationFormC):

2019-03-02  Darin Adler  <darin@apple.com>

        Retire legacy dtoa function and DecimalNumber class
        https://bugs.webkit.org/show_bug.cgi?id=195253

        Reviewed by Daniel Bates.

        * WTF.xcodeproj/project.pbxproj: Removed DecimalNumber.cpp/h.
        * wtf/CMakeLists.txt: Ditto.

        * wtf/DecimalNumber.cpp: Removed.
        * wtf/DecimalNumber.h: Removed.

        * wtf/JSONValues.cpp:
        (WTF::JSONImpl::Value::writeJSON const): Use
        StringBuilder::appendECMAScriptNumber instead of custom logic
        using the DecimalNumber class.

        * wtf/dtoa.cpp:
        (WTF::storeInc): Deleted.
        (WTF::BigInt): Deleted.
        (WTF::multadd): Deleted.
        (WTF::hi0bits): Deleted.
        (WTF::lo0bits): Deleted.
        (WTF::i2b): Deleted.
        (WTF::mult): Deleted.
        (WTF::P5Node::P5Node): Deleted.
        (WTF::pow5mult): Deleted.
        (WTF::lshift): Deleted.
        (WTF::cmp): Deleted.
        (WTF::diff): Deleted.
        (WTF::d2b): Deleted.
        (WTF::quorem): Deleted.
        (WTF::dtoa): Deleted.

        * wtf/dtoa.h: Removed DtoaBuffer, dtoa, and NumberToStringBufferLength.

2019-02-27  Darin Adler  <darin@apple.com>

        Fixed makeString(float) to do shortest-form serialization without first converting to double
        https://bugs.webkit.org/show_bug.cgi?id=195142

        Reviewed by Daniel Bates.

        * wtf/DecimalNumber.cpp: Removed unneeded includes.

        * wtf/DecimalNumber.h: Removed unused constructors; over time we will be
        deprecating DecimalNumber, so we should removed the unused parts. Also
        marked the constructor explicit, removed types used only for arguments for
        the constructors, and removed the sign, exponent, significand, and precision
        member functions.

        * wtf/JSONValues.cpp:
        (WTF::JSONImpl::Value::writeJSON const): Updated for changes to DecimalNumber
        switched from NumberToLStringBuffer to NumberToStringBuffer, and for use of
        std::array instead of C arrays.

        * wtf/dtoa.cpp: Removed unused dtoaRoundSF and dtoaRoundDP functions.
        (WTF::dtoa): Updated to use std::array instead of C arrays.
        (WTF::dtoaRoundSF): Removed.
        (WTF::dtoaRoundDP): Removed.
        (WTF::numberToString): Added an overload for float and updated to use std::array.
        (WTF::formatStringTruncatingTrailingZerosIfNeeded): Updated to use std::array.
        (WTF::numberToFixedPrecisionString): Ditto.
        (WTF::numberToFixedWidthString): Ditto.

        * wtf/dtoa.h: Changed arrays to be std::array instead of C arrays so the
        array types will be checked. Removed dtoaRoundSF and dtoaRoundDP.
        Added float overloads for numberToString, numberToFixedPrecisionString,
        and numberToFixedWidthString. The only one of these that is called at this
        time is numberToString, called by the floating point StringTypeAdapter in
        StringConcatenateNummbers.h.

        * wtf/text/StringConcatenateNumbers.h: Updated for std::array.

2019-03-01  Darin Adler  <darin@apple.com>

        Finish removing String::format
        https://bugs.webkit.org/show_bug.cgi?id=194893

        Reviewed by Daniel Bates.

        * wtf/Assertions.cpp:
        (WTF::createWithFormatAndArguments): Moved this here from WTFString.cpp.
        (WTFLog): Use WTF::createWithFormatAndArguments instead of String::format.

        * wtf/HexNumber.h: Deleted unneeded toString function.

        * wtf/text/StringConcatenate.h: Got rid of unneeded forward declaration of
        StringTypeAdapter, since that's now in Forward.h. Tweaked formatting of templates
        a bit. Use function templates for writeTo functions rather than having two of each.
        Removed unused toString functions. Optimized case where we use have a UChar* and
        a length of zero to not force the result to be 16-bit. Also gets rid of a small
        NO_RETURN_DUE_TO_CRASH mess that we don't need. Refactored constructors to use some
        static member helper functions to compute string lengths. Added the pad function
        and the PaddingSpecification struct template, so we can add padding to anything
        we can turn into a string. Got rid of the special case overload for single
        arguments, since it only worked for things that the String constructor can handle.
        Instead we will now use StringTypeAdapter, which works for more types. Possibly
        less optimal for some special cases, which we could specialize for later if we like.
        * wtf/text/StringConcatenateNumbers.h: Ditto.
        * wtf/text/StringOperators.h: Ditto.
        * wtf/text/StringView.h: Ditto.

        * wtf/text/WTFString.cpp:
        (WTF::createWithFormatAndArguments): Deleted.
        (WTF::String::format): Deleted.
        * wtf/text/WTFString.h: Deleted declaration of String::format.

2019-03-01  Alex Christensen  <achristensen@webkit.org>

        Revert r241223, r241235, and r241287
        https://bugs.webkit.org/show_bug.cgi?id=194427
        <rdar://48045861>

        * wtf/spi/darwin/XPCSPI.h:

2019-03-01  Simon Fraser  <simon.fraser@apple.com>

        Add a system trace scope for event region building
        https://bugs.webkit.org/show_bug.cgi?id=195226

        Reviewed by Jon Lee.

        This trace scope measures the time spend converting element rects into Region objects,
        which can be large on some pages.

        The value for "Display Refresh Dispatch to main thread" was wrong and I fixed it.

        * wtf/SystemTracing.h:

2019-02-28  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] sizeof(JSString) should be 16
        https://bugs.webkit.org/show_bug.cgi?id=194375

        Reviewed by Saam Barati.

        * wtf/text/StringImpl.h:
        (WTF::StringImpl::flagIs8Bit):
        (WTF::StringImpl::flagIsAtomic):
        (WTF::StringImpl::flagIsSymbol):
        (WTF::StringImpl::maskStringKind):
        * wtf/text/WTFString.cpp:
        (WTF::nullString):
        * wtf/text/WTFString.h:

2019-02-28  Mark Lam  <mark.lam@apple.com>

        Change CheckedArithmetic to not use std::enable_if_t.
        https://bugs.webkit.org/show_bug.cgi?id=195187
        <rdar://problem/48464665>

        Reviewed by Keith Miller.

        Because C++11 does not like std::enable_if_t and there's a need to use this file with C++11.

        * wtf/CheckedArithmetic.h:

2019-02-27  Simon Fraser  <simon.fraser@apple.com>

        Roll out r242014; it caused crashes in compositing logging (webkit.org/b/195141)

        * wtf/Assertions.cpp:
        (WTF::createWithFormatAndArguments): Deleted.
        * wtf/HexNumber.h:
        (WTF::StringTypeAdapter<HexNumberBuffer>::toString const):
        * wtf/text/StringConcatenate.h:
        (WTF::makeString):
        (WTF::pad): Deleted.
        (WTF::StringTypeAdapter<PaddingSpecification<UnderlyingAdapterType>>::StringTypeAdapter): Deleted.
        (WTF::StringTypeAdapter<PaddingSpecification<UnderlyingAdapterType>>::length const): Deleted.
        (WTF::StringTypeAdapter<PaddingSpecification<UnderlyingAdapterType>>::is8Bit const): Deleted.
        (WTF::StringTypeAdapter<PaddingSpecification<UnderlyingAdapterType>>::writeTo const): Deleted.
        * wtf/text/StringConcatenateNumbers.h:
        (WTF::FormattedNumber::fixedPrecision):
        (WTF::FormattedNumber::fixedWidth):
        (WTF::StringTypeAdapter<FormattedNumber>::toString const):
        * wtf/text/StringOperators.h:
        (WTF::StringAppend::StringAppend):
        * wtf/text/StringView.h:
        (WTF::StringView::invalidate):
        * wtf/text/WTFString.cpp:
        (WTF::createWithFormatAndArguments):
        (WTF::String::format):
        * wtf/text/WTFString.h:

2019-02-26  Mark Lam  <mark.lam@apple.com>

        Remove remaining poisoning code.
        https://bugs.webkit.org/show_bug.cgi?id=194138

        Reviewed by Saam Barati.

        This patch removes the instantiation of Poisoned variants of the various containers
        but retains the ability of those containers to work with pointer traits.  This
        allows us to use them with smart pointers in the future (just like we used to with
        Poisoned values).  At minimum, this ability will be useful when we want to insert
        an observer into the container storage type for debugging purposes, or to collect
        statistics for profiling.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/Bag.h:
        * wtf/CMakeLists.txt:
        * wtf/Platform.h:
        * wtf/Poisoned.cpp: Removed.
        * wtf/Poisoned.h: Removed.
        * wtf/PoisonedUniquePtr.h: Removed.
        * wtf/Ref.h:
        * wtf/RefCountedArray.h:
        * wtf/RefPtr.h:
        * wtf/WTFAssertions.cpp:

2019-02-26  Keith Miller  <keith_miller@apple.com>

        Code quality cleanup in NeverDestroyed
        https://bugs.webkit.org/show_bug.cgi?id=194824

        Reviewed by Yusuke Suzuki.

        First, move data members to the end of the class per WebKit
        style. Also, add forbid heap allocation since we expect the
        NeverDestroyed classes to be static.

        * wtf/NeverDestroyed.h:

2019-02-25  Xabier Rodriguez Calvar  <calvaris@igalia.com>

        Fix WTFLogVerbose variadic parameters forwarding
        https://bugs.webkit.org/show_bug.cgi?id=194920

        Reviewed by Alex Christensen.

        WTFLogVerbose was passing the va_list to WTFLog but this function
        also used variadic parameters and this is not allowed in C (that
        part of the code is extern "C").

        * wtf/Assertions.cpp:
        (WTF::WTFLogVaList): Created to take a va_list argument instead of
        variadic parameters.
        (WTF::WTFLog): Kept with variadic parameters, which are
        transformed to va_list and passed to WTFLogVaList.
        (WTF::WTFLogVerbose): Use WTFLogVaList instead of WTFLog.

2019-02-25  Sam Weinig  <sam@webkit.org>

        Update double-conversion to the latest version
        https://bugs.webkit.org/show_bug.cgi?id=194994

        Import the latest version of the double-conversion library based on
        https://github.com/google/double-conversion/commit/990c44707c70832dc1ce1578048c2198bafd3307

        In additon to importing the code, the following changes were applied (or re-applied) to maintain 
        parity with what we had previously:
             - Add #include "config.h" to each cpp file.
             - Put everything inside the WTF namespace.
             - Changed all in library includes to be of the form #include <wtf/dtoa/FILE.h>.
             - Renamed double_conversion::Vector<> to double_conversion::BufferReference<>.
             - Replaced duplicated functions with ASCIICType.h variants
             - Made CachedPower table a constexpr.
             - Exported (via WTF_EXPORT_PRIVATE) several functions in double-conversion.h.
             - Made substantial changes to StringToDoubleConverter to avoid unnecessary overhead of 
               parameterization, as we only ever want one configuration. Instead of constructing a
               configured class and calling StringToDouble on it, StringToDouble is now a static
               function. This allows a bunch of now dead code (hex support, octal support, etc.) to
               be eliminated. As StringToDoubleConverter now supports single precision floats, some
               additional templating of StringToIeee was added to avoid extra unnecessary branching.
             - Added RemoveCharacters function to double_conversion::StringBuilder.

        Reviewed by Darin Adler.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/dtoa/AUTHORS: Added.
        * wtf/dtoa/README: Removed.
        * wtf/dtoa/README.md: Added.
        * wtf/dtoa/bignum-dtoa.cc:
        * wtf/dtoa/bignum-dtoa.h:
        * wtf/dtoa/bignum.cc:
        * wtf/dtoa/bignum.h:
        (WTF::double_conversion::Bignum::Times10):
        (WTF::double_conversion::Bignum::Equal):
        (WTF::double_conversion::Bignum::LessEqual):
        (WTF::double_conversion::Bignum::Less):
        (WTF::double_conversion::Bignum::PlusEqual):
        (WTF::double_conversion::Bignum::PlusLessEqual):
        (WTF::double_conversion::Bignum::PlusLess):
        (WTF::double_conversion::Bignum::EnsureCapacity):
        (WTF::double_conversion::Bignum::BigitLength const):
        * wtf/dtoa/cached-powers.cc:
        * wtf/dtoa/cached-powers.h:
        * wtf/dtoa/diy-fp.cc:
        * wtf/dtoa/diy-fp.h:
        (WTF::double_conversion::DiyFp::DiyFp):
        (WTF::double_conversion::DiyFp::Subtract):
        (WTF::double_conversion::DiyFp::Minus):
        (WTF::double_conversion::DiyFp::Times):
        (WTF::double_conversion::DiyFp::Normalize):
        (WTF::double_conversion::DiyFp::f const):
        (WTF::double_conversion::DiyFp::e const):
        (WTF::double_conversion::DiyFp::set_f):
        (WTF::double_conversion::DiyFp::set_e):
        * wtf/dtoa/double-conversion.cc:
        * wtf/dtoa/double-conversion.h:
        (WTF::double_conversion::DoubleToStringConverter::DoubleToStringConverter):
        (WTF::double_conversion::DoubleToStringConverter::ToShortest const):
        (WTF::double_conversion::DoubleToStringConverter::ToShortestSingle const):
        (WTF::double_conversion::StringToDoubleConverter::StringToDoubleConverter):
        * wtf/dtoa/double.h: Removed.
        * wtf/dtoa/fast-dtoa.cc:
        * wtf/dtoa/fast-dtoa.h:
        * wtf/dtoa/fixed-dtoa.cc:
        * wtf/dtoa/fixed-dtoa.h:
        * wtf/dtoa/ieee.h: Added.
        (WTF::double_conversion::double_to_uint64):
        (WTF::double_conversion::uint64_to_double):
        (WTF::double_conversion::float_to_uint32):
        (WTF::double_conversion::uint32_to_float):
        (WTF::double_conversion::Double::Double):
        (WTF::double_conversion::Double::AsDiyFp const):
        (WTF::double_conversion::Double::AsNormalizedDiyFp const):
        (WTF::double_conversion::Double::AsUint64 const):
        (WTF::double_conversion::Double::NextDouble const):
        (WTF::double_conversion::Double::PreviousDouble const):
        (WTF::double_conversion::Double::Exponent const):
        (WTF::double_conversion::Double::Significand const):
        (WTF::double_conversion::Double::IsDenormal const):
        (WTF::double_conversion::Double::IsSpecial const):
        (WTF::double_conversion::Double::IsNan const):
        (WTF::double_conversion::Double::IsInfinite const):
        (WTF::double_conversion::Double::Sign const):
        (WTF::double_conversion::Double::UpperBoundary const):
        (WTF::double_conversion::Double::NormalizedBoundaries const):
        (WTF::double_conversion::Double::LowerBoundaryIsCloser const):
        (WTF::double_conversion::Double::value const):
        (WTF::double_conversion::Double::SignificandSizeForOrderOfMagnitude):
        (WTF::double_conversion::Double::Infinity):
        (WTF::double_conversion::Double::NaN):
        (WTF::double_conversion::Double::DiyFpToUint64):
        (WTF::double_conversion::Single::Single):
        (WTF::double_conversion::Single::AsDiyFp const):
        (WTF::double_conversion::Single::AsUint32 const):
        (WTF::double_conversion::Single::Exponent const):
        (WTF::double_conversion::Single::Significand const):
        (WTF::double_conversion::Single::IsDenormal const):
        (WTF::double_conversion::Single::IsSpecial const):
        (WTF::double_conversion::Single::IsNan const):
        (WTF::double_conversion::Single::IsInfinite const):
        (WTF::double_conversion::Single::Sign const):
        (WTF::double_conversion::Single::NormalizedBoundaries const):
        (WTF::double_conversion::Single::UpperBoundary const):
        (WTF::double_conversion::Single::LowerBoundaryIsCloser const):
        (WTF::double_conversion::Single::value const):
        (WTF::double_conversion::Single::Infinity):
        (WTF::double_conversion::Single::NaN):
        * wtf/dtoa/strtod.cc:
        * wtf/dtoa/strtod.h:
        * wtf/dtoa/utils.h:
        (abort_noreturn):
        (WTF::double_conversion::Max):
        (WTF::double_conversion::Min):
        (WTF::double_conversion::StrLength):
        (WTF::double_conversion::BufferReference::BufferReference):
        (WTF::double_conversion::BufferReference::SubVector):
        (WTF::double_conversion::BufferReference::length const):
        (WTF::double_conversion::BufferReference::is_empty const):
        (WTF::double_conversion::BufferReference::start const):
        (WTF::double_conversion::BufferReference::operator[] const):
        (WTF::double_conversion::BufferReference::first):
        (WTF::double_conversion::BufferReference::last):
        (WTF::double_conversion::StringBuilder::StringBuilder):
        (WTF::double_conversion::StringBuilder::~StringBuilder):
        (WTF::double_conversion::StringBuilder::size const):
        (WTF::double_conversion::StringBuilder::position const):
        (WTF::double_conversion::StringBuilder::Reset):
        (WTF::double_conversion::StringBuilder::AddCharacter):
        (WTF::double_conversion::StringBuilder::AddString):
        (WTF::double_conversion::StringBuilder::AddSubstring):
        (WTF::double_conversion::StringBuilder::AddPadding):
        (WTF::double_conversion::StringBuilder::RemoveCharacters):
        (WTF::double_conversion::StringBuilder::Finalize):
        (WTF::double_conversion::StringBuilder::is_finalized const):
        (WTF::double_conversion::BitCast):
        (WTF::double_conversion::BufferReference::SubBufferReference): Deleted.
        (WTF::double_conversion::StringBuilder::SetPosition): Deleted.

2019-02-20  Darin Adler  <darin@apple.com>

        Finish removing String::format
        https://bugs.webkit.org/show_bug.cgi?id=194893

        Reviewed by Daniel Bates.

        * wtf/Assertions.cpp:
        (WTF::createWithFormatAndArguments): Moved this here from WTFString.cpp.
        (WTFLog): Use WTF::createWithFormatAndArguments instead of String::format.

        * wtf/HexNumber.h: Deleted unneeded toString function.

        * wtf/text/StringConcatenate.h: Got rid of unneeded forward declaration of
        StringTypeAdapter, since that's now in Forward.h. Tweaked formatting of templates
        a bit. Use function templates for writeTo functions rather than having two of each.
        Removed unused toString functions. Optimized case where we use have a UChar* and
        a length of zero to not force the result to be 16-bit. Also gets rid of a small
        NO_RETURN_DUE_TO_CRASH mess that we don't need. Refactored constructors to use some
        static member helper functions to compute string lengths. Added the pad function
        and the PaddingSpecification struct template, so we can add padding to anything
        we can turn into a string. Got rid of the special case overload for single
        arguments, since it only worked for things that the String constructor can handle.
        Instead we will now use StringTypeAdapter, which works for more types. Possibly
        less optimal for some special cases, which we could specialize for later if we like.
        * wtf/text/StringConcatenateNumbers.h: Ditto.
        * wtf/text/StringOperators.h: Ditto.
        * wtf/text/StringView.h: Ditto.

        * wtf/text/WTFString.cpp:
        (WTF::createWithFormatAndArguments): Deleted.
        (WTF::String::format): Deleted.
        * wtf/text/WTFString.h: Deleted declaration of String::format.

2019-02-23  Michael Catanzaro  <mcatanzaro@igalia.com>

        Unreviewed, fix find/replace error from r232178

        Looks like this was the only such error in that commit.

        * wtf/URLHelpers.cpp:
        (WTF::URLHelpers::isLookalikeCharacter):

2019-02-23  Mark Lam  <mark.lam@apple.com>

        Add an exception check and some assertions in StringPrototype.cpp.
        https://bugs.webkit.org/show_bug.cgi?id=194962
        <rdar://problem/48013416>

        Reviewed by Yusuke Suzuki and Saam Barati.

        Add an AssertNoOverflow overflow handler which allows us to do CheckedArithmetic
        for assertion purpose only on debug builds but sacrifices no performance on
        release builds.

        * wtf/CheckedArithmetic.h:
        (WTF::AssertNoOverflow::overflowed):
        (WTF::AssertNoOverflow::clearOverflow):
        (WTF::AssertNoOverflow::crash):
        (WTF::AssertNoOverflow::hasOverflowed const):
        (WTF::observesOverflow):
        (WTF::observesOverflow<AssertNoOverflow>):
        (WTF::safeAdd):
        (WTF::safeSub):
        (WTF::safeMultiply):
        (WTF::Checked::operator+=):
        (WTF::Checked::operator-=):
        (WTF::Checked::operator*=):
        (WTF::operator+):
        (WTF::operator-):
        (WTF::operator*):

2019-02-23  Keith Miller  <keith_miller@apple.com>

        Add new mac target numbers
        https://bugs.webkit.org/show_bug.cgi?id=194955

        Reviewed by Tim Horton.

        * Configurations/Base.xcconfig:
        * Configurations/DebugRelease.xcconfig:

2019-02-21  Antoine Quint  <graouts@apple.com>

        Move UIWebTouchEventsGestureRecognizer.activeTouchesByIdentifier to SPI
        https://bugs.webkit.org/show_bug.cgi?id=194531
        <rdar://problem/47714562>

        Reviewed by Tim Horton.

        Follow-up commit to ensure this SPI is only called on newer versions of iOS.

        * wtf/Platform.h:

2019-02-21  Dean Jackson  <dino@apple.com>

        Rotation animations sometimes use the wrong origin (affects apple.com)
        https://bugs.webkit.org/show_bug.cgi?id=194878
        <rdar://problem/43908047>

        Follow-up commit to ensure this change only affects newer versions
        of iOS.

        * wtf/Platform.h: Add a version check.

2019-02-20  Alex Christensen  <achristensen@webkit.org>

        URL percent-encode operations should use checked arithmetic for buffer allocation length
        https://bugs.webkit.org/show_bug.cgi?id=194877
        <rdar://problem/48212062>

        Reviewed by Tim Horton.

        * wtf/URLHelpers.cpp:
        (WTF::URLHelpers::userVisibleURL):
        * wtf/cocoa/NSURLExtras.mm:
        (WTF::dataWithUserTypedString):

2019-02-20  Dean Jackson  <dino@apple.com>

        Rotation animations sometimes use the wrong origin (affects apple.com)
        https://bugs.webkit.org/show_bug.cgi?id=194878
        <rdar://problem/43908047>

        Reviewed by Simon Fraser.

        * wtf/Platform.h: Add HAVE(CA_WHERE_ADDITIVE_TRANSFORMS_ARE_REVERSED).

2019-02-20  Andy Estes  <aestes@apple.com>

        [Xcode] Add SDKVariant.xcconfig to various Xcode projects
        https://bugs.webkit.org/show_bug.cgi?id=194869

        Rubber-stamped by Jer Noble.

        * WTF.xcodeproj/project.pbxproj:

2019-02-20  Adrian Perez de Castro  <aperez@igalia.com>

        [WPE][GTK] Enable support for CONTENT_EXTENSIONS
        https://bugs.webkit.org/show_bug.cgi?id=167941

        Reviewed by Carlos Garcia Campos.

        Add specialization of the refGPtr() and derefGPtr() templates for GMappedFile.

        * wtf/glib/GRefPtr.cpp:
        (WTF::refGPtr): Added.
        (WTF::derefGPtr): Added.
        * wtf/glib/GRefPtr.h: Declare template specializations.

2019-02-19  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r241770.
        https://bugs.webkit.org/show_bug.cgi?id=194833

        Caused crashes (Requested by smfr on #webkit).

        Reverted changeset:

        "Code quality cleanup in NeverDestroyed"
        https://bugs.webkit.org/show_bug.cgi?id=194824
        https://trac.webkit.org/changeset/241770

2019-02-19  Keith Miller  <keith_miller@apple.com>

        Code quality cleanup in NeverDestroyed
        https://bugs.webkit.org/show_bug.cgi?id=194824

        Reviewed by Yusuke Suzuki.

        First, move data members to the end of the class per WebKit
        style. Also, add forbid heap allocation since we expect the
        NeverDestroyed classes to be static.

        * wtf/NeverDestroyed.h:

2019-02-16  Darin Adler  <darin@apple.com>

        Continue reducing use of String::format, now focusing on hex: "%p", "%x", etc.
        https://bugs.webkit.org/show_bug.cgi?id=194752

        Reviewed by Daniel Bates.

        * WTF.xcodeproj/project.pbxproj: Added HexNumber.cpp and Logger.cpp.
        * wtf/CMakeLists.txt: Ditto.

        * wtf/HexNumber.cpp: Added.
        (WTF::Internal::appendHex): Non-inline, non-template hex formatting logic.

        * wtf/HexNumber.h:
        (WTF::Internal::appendHex): Refactored main logic of appendUnsignedAsHex and
        appendUnsignedAsHexFixedSize so they can be reused in a function named hex for
        use with StringTypeAdapter.
        (WTF::appendUnsignedAsHex): Ditto.
        (WTF::appendUnsignedAsHexFixedSize): Ditto.
        (WTF::hex): Added.
        (WTF::StringTypeAdapter<HexNumberBuffer>): Added.

        * wtf/Logger.cpp: Added.
        (WTF::Logger::LogSiteIdentifier::toString const): Made this a non-template
        function and moved it here so that we don't need to include HexNumber.h
        in Logger.h. Since HexNumber.h has substantial code in it, it's good if we
        don't include it in any other headers.

        * wtf/Logger.h:
        (WTF::LogArgument<Logger::LogSiteIdentifier>::toString): Changed to call
        a non-template function, LogSiteIdentifier::toString.

        * wtf/text/StringConcatenateNumbers.h: Replaced overloaded writeTo functions
        with function templates and used StringImpl::copyCharacters instead of
        hand-written loops.

2019-02-18  Joseph Pecoraro  <pecoraro@apple.com>

        Web Inspector: Better categorize CPU usage per-thread / worker
        https://bugs.webkit.org/show_bug.cgi?id=194564

        Reviewed by Devin Rousso.

        * wtf/Threading.h:
        * wtf/Threading.cpp:
        (WTF::Thread::allThreadsMutex):
        (WTF::Thread::create):
        (WTF::Thread::didExit):
        Add a set of all WTF::Thread created threads.

2019-02-18  Tadeu Zagallo  <tzagallo@apple.com>

        Bytecode cache should a have a boot-specific validation
        https://bugs.webkit.org/show_bug.cgi?id=194769
        <rdar://problem/48149509>

        Reviewed by Keith Miller.

        Add helper to get kern.bootsessionuuid from sysctl

        * wtf/UUID.cpp:
        (WTF::bootSessionUUIDString):
        * wtf/UUID.h:

2019-02-17  David Kilzer  <ddkilzer@apple.com>

        Unreviewed, rolling out r241620.

        "Causes use-after-free crashes running layout tests with ASan and GuardMalloc."
        (Requested by ddkilzer on #webkit.)

        Reverted changeset:

        "[WTF] Add environment variable helpers"
        https://bugs.webkit.org/show_bug.cgi?id=192405
        https://trac.webkit.org/changeset/241620

2019-02-15  Ross Kirsling  <ross.kirsling@sony.com>

        [WTF] Add environment variable helpers
        https://bugs.webkit.org/show_bug.cgi?id=192405

        Reviewed by Michael Catanzaro.

        Create a new Environment API as a platform-independent, thread-safe(r)
        way to get and set environment variables.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Environment.h: Added.
        * wtf/PlatformGTK.cmake:
        * wtf/PlatformJSCOnly.cmake:
        * wtf/PlatformMac.cmake:
        * wtf/PlatformPlayStation.cmake:
        * wtf/PlatformWPE.cmake:
        * wtf/PlatformWin.cmake:
        * wtf/posix/EnvironmentPOSIX.cpp: Added.
        * wtf/win/EnvironmentWin.cpp: Added.
        Introduce WTF::Environment.

        * wtf/Threading.cpp:
        (WTF::threadingIsInitialized):
        (WTF::initializeThreading):
        * wtf/Threading.h:
        Introduce WTF::threadingIsInitialized() so that we can ASSERT that it's
        false before setting an environment variable through the new API.

        * wtf/DataLog.cpp:
        (WTF::initializeLogFileOnce):
        * wtf/NumberOfCores.cpp:
        (WTF::numberOfProcessorCores):
        * wtf/posix/FileSystemPOSIX.cpp:
        (WTF::FileSystemImpl::openTemporaryFile):
        Utilize WTF::Environment where possible.

2019-02-15  Brian Burg  <bburg@apple.com>

        [Mac] WebInspectorUI.framework does not need to be soft-linked anymore
        https://bugs.webkit.org/show_bug.cgi?id=194411
        <rdar://problem/47787614>

        Reviewed by Joseph Pecoraro.

        * wtf/cocoa/SoftLinking.h:
        Remove macro that now has no uses.

2019-02-15  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r241559 and r241566.
        https://bugs.webkit.org/show_bug.cgi?id=194710

        Causes layout test crashes under GuardMalloc (Requested by
        ryanhaddad on #webkit).

        Reverted changesets:

        "[WTF] Add environment variable helpers"
        https://bugs.webkit.org/show_bug.cgi?id=192405
        https://trac.webkit.org/changeset/241559

        "Unreviewed build fix for WinCairo Debug after r241559."
        https://trac.webkit.org/changeset/241566

2019-02-15  Truitt Savell  <tsavell@apple.com>

        Unreviewed, rolling out r241564.

        Caused 50+ Timeouts on Mac WK2, mostly in the http/ directory

        Reverted changeset:

        "[Mac] WebInspectorUI.framework does not need to be soft-
        linked anymore"
        https://bugs.webkit.org/show_bug.cgi?id=194411
        https://trac.webkit.org/changeset/241564

2019-02-15  Dominik Infuehr  <dinfuehr@igalia.com>

        Fix deadlock on Linux/x64 between SamplingProfiler and VMTraps
        https://bugs.webkit.org/show_bug.cgi?id=194014

        Reviewed by Michael Catanzaro.

        Do not block SIGUSR1 when installing signal handlers, since this signal
        is used to suspend/resume machine threads on Linux.

        ftl-ai-filter-phantoms-should-clear-clear-value.js deadlocked with
        enabled watchdog and sampling.

        Deadlock happened in the following situation:

        Thread 1 (Sampling): SamplingProfiler.cpp:takeSample takes all needed locks
        and then tries to suspend the main thread.

        Thread 2 (Watchdog/VMTraps): Before the Sampling-Thread suspends the main thread
        a signal is caught and the signal handler is invoked (VMTraps.cpp:SignalSender).
        SignalSender tries to lock codeBlockSet, but this is already locked by the
        SamplingProfiler.

        The SamplingProfiler can only give up the lock when it suspends
        the thread. However since the VMTraps signal handler is active, all other signals blocked,
        therefore the SamplingProfiler also waits until its signal handler is invoked.

        This patch fixes this by not blocking SIGUSR1 in installSignalHandler, since
        it is used to suspend/resume threads on Linux.

        * wtf/Threading.h:
        * wtf/posix/ThreadingPOSIX.cpp:
        * wtf/threads/Signals.cpp:
        (WTF::installSignalHandler):

2019-02-15  Saam barati  <sbarati@apple.com>

        [WebAssembly] Write a new register allocator for Air O0 and make BBQ use it
        https://bugs.webkit.org/show_bug.cgi?id=194036

        Reviewed by Yusuke Suzuki.

        * wtf/IndexMap.h:
        (WTF::IndexMap::at):
        (WTF::IndexMap::at const):
        (WTF::IndexMap::operator[]):
        (WTF::IndexMap::operator[] const):

2019-02-14  Brian Burg  <bburg@apple.com>

        [Mac] WebInspectorUI.framework does not need to be soft-linked anymore
        https://bugs.webkit.org/show_bug.cgi?id=194411
        <rdar://problem/47787614>

        Reviewed by Joseph Pecoraro.

        * wtf/cocoa/SoftLinking.h:
        Remove macro that now has no uses.

2019-02-14  Ross Kirsling  <ross.kirsling@sony.com>

        [WTF] Add environment variable helpers
        https://bugs.webkit.org/show_bug.cgi?id=192405

        Reviewed by Michael Catanzaro.

        Create a new Environment API as a platform-independent, thread-safe(r)
        way to get and set environment variables.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Environment.h: Added.
        * wtf/PlatformGTK.cmake:
        * wtf/PlatformJSCOnly.cmake:
        * wtf/PlatformMac.cmake:
        * wtf/PlatformPlayStation.cmake:
        * wtf/PlatformWPE.cmake:
        * wtf/PlatformWin.cmake:
        * wtf/posix/EnvironmentPOSIX.cpp: Added.
        * wtf/win/EnvironmentWin.cpp: Added.
        Introduce WTF::Environment.

        * wtf/Threading.cpp:
        (WTF::threadingIsInitialized):
        (WTF::initializeThreading):
        * wtf/Threading.h:
        Introduce WTF::threadingIsInitialized() so that we can ASSERT that it's
        false before setting an environment variable through the new API.

        * wtf/DataLog.cpp:
        (WTF::initializeLogFileOnce):
        * wtf/NumberOfCores.cpp:
        (WTF::numberOfProcessorCores):
        * wtf/posix/FileSystemPOSIX.cpp:
        (WTF::FileSystemImpl::openTemporaryFile):
        Utilize WTF::Environment where possible.

2019-02-13  Yusuke Suzuki  <ysuzuki@apple.com>

        We should only make rope strings when concatenating strings long enough.
        https://bugs.webkit.org/show_bug.cgi?id=194465

        Reviewed by Mark Lam.

        * wtf/text/StringImpl.h:
        (WTF::StringImpl::headerSize):

2019-02-12  Tim Horton  <timothy_horton@apple.com>

        Remove WKLegacyPDFView
        https://bugs.webkit.org/show_bug.cgi?id=194559

        Reviewed by Andy Estes.

        * wtf/FeatureDefines.h:

2019-02-12  David Kilzer  <ddkilzer@apple.com>

        REGRESSION (r238955, r240494): Soft-linking optional Lookup.framework triggers release assertion when missing
        <https://webkit.org/b/194529>
        <rdar://problem/47924449>

        Reviewed by Eric Carlson.

        * wtf/cocoa/SoftLinking.h:
        (SOFT_LINK_CLASS_FOR_SOURCE_WITH_EXPORT_AND_IS_OPTIONAL): Rename
        SOFT_LINK_CLASS_FOR_SOURCE_WITH_EXPORT_AND_ASSERTION() to this
        and change `assertion` argument to `isOptional`.  Pass
        `isOptional` to framework##Library() method to control assertion
        behavior.  Only check RELEASE_ASSERT() if `!isOptional`, else
        that code should be optimized out by the compiler.  This fixes
        the crash.
        (NO_ASSERT): Remove macro since it's no longer used.
        (SOFT_LINK_IS_OPTIONAL): Add macro to use for soft-linking
        optional classes.
        (SOFT_LINK_IS_NOT_OPTIONAL): Add macro to use for soft-linking
        non-optional classes.
        (SOFT_LINK_CLASS_FOR_SOURCE_WITH_EXPORT): Update to use new
        SOFT_LINK_CLASS_FOR_SOURCE_WITH_EXPORT_AND_IS_OPTIONAL() macro.
        (SOFT_LINK_CLASS_FOR_SOURCE_OPTIONAL_WITH_EXPORT): Ditto.
        (SOFT_LINK_CLASS_FOR_SOURCE): Ditto.
        (SOFT_LINK_CLASS_FOR_SOURCE_OPTIONAL): Ditto.

2019-02-12  Andy Estes  <aestes@apple.com>

        [iOSMac] Enable Parental Controls Content Filtering
        https://bugs.webkit.org/show_bug.cgi?id=194521
        <rdar://39732376>

        Reviewed by Tim Horton.

        * wtf/Platform.h:

2019-02-11  Myles C. Maxfield  <mmaxfield@apple.com>

        [Cocoa] Ask platform for generic font family mappings
        https://bugs.webkit.org/show_bug.cgi?id=187723
        <rdar://problem/41892438>

        Reviewed by Brent Fulgham.

        Add an ENABLE in Platform.

        * wtf/Platform.h:

2019-02-11  Truitt Savell  <tsavell@apple.com>

        Unreviewed, rolling out r241229.

        Revision broke internal builds for watchOS.

        Reverted changeset:

        "[Cocoa] Ask platform for generic font family mappings"
        https://bugs.webkit.org/show_bug.cgi?id=187723
        https://trac.webkit.org/changeset/241229

2019-02-10  Darin Adler  <darin@apple.com>

        Switch uses of StringBuilder with String::format for hex numbers to use HexNumber.h instead
        https://bugs.webkit.org/show_bug.cgi?id=194485

        Reviewed by Daniel Bates.

        * wtf/HexNumber.h: Removed unused functions placeByteAsHexCompressIfPossible and
        placeByteAsHex. Can always bring them back if someone needs them. Updated
        appendUnsignedAsHex to be a template so we can use it on any integer type,
        got rid of unnecessary use of Vector and unnecessary reversing, and got rid of
        appendUnsigned64AsHex since callers can now just use appendUnsignedAsHex.
        Rewrote appendUnsignedAsHexFixedSize to share mode code rather than replicating.

        * wtf/Logger.h: Use appendUnsignedAsHex instead of appendUnsigned64AsHex.

        * wtf/URL.cpp: Removed unnecessary include of HexNumber.h.

        * wtf/cocoa/NSURLExtras.h: Added missing include of Foundation.h that was
        worked around in NSURLExtras.mm.
        * wtf/cocoa/NSURLExtras.mm: Removed unnecessary includes of HexNumber.h
        and Foundation.h.

2019-02-09  Darin Adler  <darin@apple.com>

        Eliminate unnecessary String temporaries by using StringConcatenateNumbers
        https://bugs.webkit.org/show_bug.cgi?id=194021

        Reviewed by Geoffrey Garen.

        * wtf/URL.cpp:
        (WTF::URL::setPort): Remove String::number and let makeString do the conversion
        without allocating/destroying a String. Added a cast to "unsigned" to sidestep the
        ambiguity with 16-bit unsigned types that are sometimes used for numbers (uint16_t)
        and sometimes used for UTF-16 code units (UChar) and can be the same type.

        * wtf/text/StringConcatenateNumbers.h:
        Changed FormattedNumber::fixedPrecision to more closely match String::number and
        StringBuilder::appendNumber by defaulting to truncating trailing zeros and using
        a named enumeration for the truncation policy rather than a boolean.


2019-02-09  Yusuke Suzuki  <ysuzuki@apple.com>

        Unreviewed, rolling in r241237 again
        https://bugs.webkit.org/show_bug.cgi?id=194469

        After the measurement, this patch was unrelated to recent regression.

        * wtf/text/StringImpl.h:
        (WTF::StringImpl::isSubString const):
        (WTF::StringImpl::createSubstringSharingImpl):

2019-02-09  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r241237.
        https://bugs.webkit.org/show_bug.cgi?id=194474

        Shows significant memory increase in WSL (Requested by
        yusukesuzuki on #webkit).

        Reverted changeset:

        "[WTF] Use BufferInternal StringImpl if substring StringImpl
        takes more memory"
        https://bugs.webkit.org/show_bug.cgi?id=194469
        https://trac.webkit.org/changeset/241237

2019-02-08  Yusuke Suzuki  <ysuzuki@apple.com>

        [WTF] Use BufferInternal StringImpl if substring StringImpl takes more memory
        https://bugs.webkit.org/show_bug.cgi?id=194469

        Reviewed by Geoffrey Garen.

        Because pointer is large and aligned in 64bit in 64bit architecture, BufferSubstring StringImpl
        implementation takes more memory than BufferInternal StringImpl implementation for small strings.
        And BufferInternal StringImpl does not have a problem like, small substring StringImpl keeps super
        large owner StringImpl. This patch calculates the required size of memory and selects the more efficient one.

        * wtf/text/StringImpl.h:
        (WTF::StringImpl::isSubString const):
        (WTF::StringImpl::createSubstringSharingImpl):

2019-02-08  Alex Christensen  <achristensen@webkit.org>

        Add SPI to use networking daemon instead of XPC service
        https://bugs.webkit.org/show_bug.cgi?id=194427

        Reviewed by Geoffrey Garen.

        * wtf/spi/darwin/XPCSPI.h:
        Instead of using XPC bootstrap SPI, we just send a separate message.
        xpc_copy_bootstrap does not seem to work in  daemons.

2019-02-08  Truitt Savell  <tsavell@apple.com>

        Unreviewed, rolling out r241197.

        Broke iOS Simulator Debug build and casued 1 API failure on
        High Sierra

        Reverted changeset:

        "Add SPI to use networking daemon instead of XPC service"
        https://bugs.webkit.org/show_bug.cgi?id=194427
        https://trac.webkit.org/changeset/241197

2019-02-08  Alex Christensen  <achristensen@webkit.org>

        Add SPI to use networking daemon instead of XPC service
        https://bugs.webkit.org/show_bug.cgi?id=194427

        Reviewed by Geoffrey Garen.

        * wtf/spi/darwin/XPCSPI.h:
        Instead of using XPC bootstrap SPI, we just send a separate message.
        xpc_copy_bootstrap does not seem to work in  daemons.

2019-02-08  Benjamin Poulain  <benjamin@webkit.org>

        clampTo(): do not convert the input to double when dealing with integers
        https://bugs.webkit.org/show_bug.cgi?id=194263
        <rdar://problem/47692312>

        Reviewed by Darin Adler.

        Previously, every use of clampTo() was converting the input to double,
        doing the comparison in double, then casting back to whatever type was needed.

        In many case, that was very wasteful. WebKit has many cases of clampTo() with
        the same type as input/output, or with integer types of different size/sign.

        This patch adds a few versions of clampTo() for the common cases seen in WebKit.
        In each case, I tried to minimize the amount of conversion needed at runtime.

        * wtf/MathExtras.h:
        (clampTo):

2019-02-07  Chris Dumez  <cdumez@apple.com>

        Mark more heap-allocated classes as fast allocated
        https://bugs.webkit.org/show_bug.cgi?id=194422

        Reviewed by Ryosuke Niwa.

        * wtf/Function.h:
        (WTF::Function<Out):
        * wtf/RefCounter.h:
        * wtf/URL.h:
        * wtf/text/StringView.cpp:

2019-02-07  Per Arne Vollan  <pvollan@apple.com>

        [macOS] Block coreservicesd in sandbox.
        https://bugs.webkit.org/show_bug.cgi?id=192670

        Reviewed by Alexey Proskuryakov.

        Add HAVE_CSCHECKFIXDISABLE define.

        * wtf/Platform.h:

2019-02-07  Eric Carlson  <eric.carlson@apple.com>

        [MSE] Convert debug-only logging to runtime logging
        https://bugs.webkit.org/show_bug.cgi?id=194348
        <rdar://problem/47566449>

        Reviewed by Jer Noble.

        * wtf/LoggerHelper.h:
        (WTF::LoggerHelper::childLogIdentifier const): Helper to generate a log identifier for an
        object that is associated with another logging object.
        * wtf/MediaTime.cpp:
        (WTF::MediaTime::toJSONObject const):
        (WTF::MediaTime::toJSONString const):
        (WTF::MediaTimeRange::toJSONString const):
        (WTF::toJSONStringInternal): Deleted.
        * wtf/MediaTime.h:

2019-02-05  Keith Rollin  <krollin@apple.com>

        Enable the automatic checking and regenerations of .xcfilelists during builds
        https://bugs.webkit.org/show_bug.cgi?id=194124
        <rdar://problem/47721277>

        Reviewed by Tim Horton.

        Bug 193790 add a facility for checking -- during build time -- that
        any needed .xcfilelist files are up-to-date and for updating them if
        they are not. This facility was initially opt-in by setting
        WK_ENABLE_CHECK_XCFILELISTS until other pieces were in place and until
        the process seemed robust. Its now time to enable this facility and
        make it opt-out. If there is a need to disable this facility, set and
        export WK_DISABLE_CHECK_XCFILELISTS=1 in your environment before
        running `make` or `build-webkit`, or before running Xcode from the
        command line.

        Additionally, remove the step that generates a list of source files
        going into the UnifiedSources build step. It's only necessarily to
        specify Sources.txt and SourcesCocoa.txt as inputs.

        * Scripts/generate-unified-source-bundles.rb:

2019-02-05  Yusuke Suzuki  <ysuzuki@apple.com>

        [JSC] Shrink sizeof(UnlinkedCodeBlock)
        https://bugs.webkit.org/show_bug.cgi?id=194281

        Reviewed by Michael Saboff.

        * wtf/TriState.h:

2019-02-05  Zan Dobersek  <zdobersek@igalia.com>

        [GLib] Stop URI-escaping file system representations
        https://bugs.webkit.org/show_bug.cgi?id=194213

        Reviewed by Carlos Garcia Campos.

        Stop URI-escaping of file representation strings in
        FileSystem::stringFromFileSystemRepresentation(), and URI-unescaping
        of strings in FileSystem::fileSystemRepresentation().

        This behavior deviates from POSIX and CF implementations and is
        currently breaking IndexedDB-specific calculation of database sizes due
        to directory components used in that process that are URL-based and are
        as such URI-escaped. When unescaped, those single directory components
        explode into multiple directory components, leading to incorrect total
        database size calculation when iterating the database directory.

        FileSystem::stringFromFileSystemRepresentation() now retrieves GLib's
        filename charsets and in worst case converts the filesystem
        representation to UTF-8 before String::fromUTF8() is used.
        FileSystem::fileSystemRepresentation() reverses that process, taking
        String's UTF-8 data and converting it to target charset if necessary.

        Other FileSystem functions are adjusted to convert passed-in String
        objects to filesystem representations.

        * wtf/glib/FileSystemGlib.cpp:
        (WTF::FileSystemImpl::stringFromFileSystemRepresentation):
        (WTF::FileSystemImpl::fileSystemRepresentation):
        (WTF::FileSystemImpl::validRepresentation):
        (WTF::FileSystemImpl::filenameForDisplay):
        (WTF::FileSystemImpl::fileExists):
        (WTF::FileSystemImpl::deleteFile):
        (WTF::FileSystemImpl::deleteEmptyDirectory):
        (WTF::FileSystemImpl::getFileStat):
        (WTF::FileSystemImpl::getFileLStat):
        (WTF::FileSystemImpl::makeAllDirectories):
        (WTF::FileSystemImpl::createSymbolicLink):
        (WTF::FileSystemImpl::pathGetFileName):
        (WTF::FileSystemImpl::getVolumeFreeSpace):
        (WTF::FileSystemImpl::directoryName):
        (WTF::FileSystemImpl::listDirectory):
        (WTF::FileSystemImpl::openFile):
        (WTF::FileSystemImpl::moveFile):
        (WTF::FileSystemImpl::hardLinkOrCopyFile):
        (WTF::FileSystemImpl::getFileDeviceId): Align with POSIX implementation
        and treat input CString as an existing filesystem representation.
        (WTF::FileSystemImpl::unescapedFilename): Deleted.

2019-02-04  Ms2ger  <Ms2ger@igalia.com>

        [GTK][WPE] Need a function to convert internal URI to display ("pretty") URI
        https://bugs.webkit.org/show_bug.cgi?id=174816

        Reviewed by Michael Catanzaro.

        Translate userVisibleString and dependent code into platform-neutral C++
        in wtf/URLHelpers.{h,cpp}.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/URLHelpers.cpp: Added.
        (WTF::URLHelpers::loadIDNScriptWhiteList):
        (WTF::URLHelpers::isArmenianLookalikeCharacter):
        (WTF::URLHelpers::isArmenianScriptCharacter):
        (WTF::URLHelpers::isASCIIDigitOrValidHostCharacter):
        (WTF::URLHelpers::isLookalikeCharacter):
        (WTF::URLHelpers::whiteListIDNScript):
        (WTF::URLHelpers::initializeDefaultIDNScriptWhiteList):
        (WTF::URLHelpers::allCharactersInIDNScriptWhiteList):
        (WTF::URLHelpers::isSecondLevelDomainNameAllowedByTLDRules):
        (WTF::URLHelpers::isRussianDomainNameCharacter):
        (WTF::URLHelpers::allCharactersAllowedByTLDRules):
        (WTF::URLHelpers::mapHostName):
        (WTF::URLHelpers::collectRangesThatNeedMapping):
        (WTF::URLHelpers::applyHostNameFunctionToMailToURLString):
        (WTF::URLHelpers::applyHostNameFunctionToURLString):
        (WTF::URLHelpers::mapHostNames):
        (WTF::URLHelpers::createStringWithEscapedUnsafeCharacters):
        (WTF::URLHelpers::toNormalizationFormC):
        (WTF::URLHelpers::userVisibleURL):
        * wtf/URLHelpers.h: Added.
        * wtf/cocoa/NSURLExtras.mm:
        (WTF::URLHelpers::loadIDNScriptWhiteList):
        (WTF::decodePercentEscapes):
        (WTF::decodeHostName):
        (WTF::encodeHostName):
        (WTF::URLWithUserTypedString):
        (WTF::userVisibleString):

2019-02-03  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r240896.
        https://bugs.webkit.org/show_bug.cgi?id=194202

        "Fixes leaks, but is probably not the correct fix." (Requested
        by ddkilzer on #webkit).

        Reverted changeset:

        "Leak of WTF::StringImpl under SymbolImpl::createNullSymbol()
        (48 bytes) in com.apple.WebKit.WebContent running layout
        tests"
        https://bugs.webkit.org/show_bug.cgi?id=193291
        https://trac.webkit.org/changeset/240896

2019-02-02  David Kilzer  <ddkilzer@apple.com>

        Leak of WTF::StringImpl under SymbolImpl::createNullSymbol() (48 bytes) in com.apple.WebKit.WebContent running layout tests
        <https://webkit.org/b/193291>
        <rdar://problem/46655953>

        Reviewed by Keith Miller.

        * wtf/text/SymbolImpl.h:
        (WTF::SymbolImpl::~SymbolImpl): Fix the leak by implementing the
        class destructor that calls StringImpl::deref() on `m_owner`.
        Two of the three constructors leak the StringImpl when setting
        `m_owner`, so we need to balance that by manually calling
        deref().

2018-12-16  Darin Adler  <darin@apple.com>

        Convert additional String::format clients to alternative approaches
        https://bugs.webkit.org/show_bug.cgi?id=192746

        Reviewed by Alexey Proskuryakov.

        * wtf/JSONValues.cpp:
        (WTF::appendDoubleQuotedStringEscapedCharacter): Renamed from
        escapeChar and reordered arguments to make sense as an append function.
        (WTF::appendDoubleQuotedString): Renamed from doubleQuoteString,
        reordered arguments to make sense as an append function, take a
        StringView instead of a String, used early exit to make the code
        a bit easier to read. Use the ASCIIHexDigit functions to construct
        a hex number a nibble at a time rather than using String::format.
        (WTF::JSONImpl::Value::writeJSON const): Update for name change.
        (WTF::JSONImpl::ObjectBase::writeJSON const): Ditto.

2019-01-31  Carlos Garcia Campos  <cgarcia@igalia.com>

        Unreviewed. Fix WPE compile warnings due to deprecated glib API.

        * wtf/Platform.h:

2019-01-29  Chris Dumez  <cdumez@apple.com>

        Make sure WTF::generateObjectIdentifier() internal counter does not get duplicated
        https://bugs.webkit.org/show_bug.cgi?id=193848

        Reviewed by Youenn Fablet.

        Move WTF::generateObjectIdentifier()'s internal counter out-of-line so make sure it never gets
        duplicated at each call site. This has caused some hard-to-debug issues with duplicate
        identifiers such as Bug 193761.

        Also move it to ObjectIdentifier and rename it to generate() as this make call sites nicer
        when they have a typedef for the ObjectIdentifier<T> type.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/ObjectIdentifier.cpp: Copied from Source/WebCore/platform/Process.cpp.
        (WTF::ObjectIdentifierBase::generateIdentifierInternal):
        (WTF::ObjectIdentifierBase::generateThreadSafeIdentifierInternal):
        * wtf/ObjectIdentifier.h:
        (WTF::ObjectIdentifier::generate):
        (WTF::ObjectIdentifier::generateThreadSafe):

2019-01-28  Ross Kirsling  <ross.kirsling@sony.com>

        Move platform-specific files out of WTF root directory.
        https://bugs.webkit.org/show_bug.cgi?id=193929

        Reviewed by Alex Christensen.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/PlatformGTK.cmake:
        * wtf/PlatformJSCOnly.cmake:
        * wtf/PlatformMac.cmake:
        * wtf/PlatformPlayStation.cmake:
        * wtf/PlatformWPE.cmake:
        * wtf/PlatformWin.cmake:
        * wtf/cf/RunLoopTimerCF.cpp: Renamed from Source/WTF/wtf/RunLoopTimerCF.cpp.
        * wtf/cf/SchedulePairCF.cpp: Renamed from Source/WTF/wtf/SchedulePairCF.cpp.
        * wtf/mac/SchedulePairMac.mm: Renamed from Source/WTF/wtf/SchedulePairMac.mm.
        * wtf/posix/OSAllocatorPOSIX.cpp: Renamed from Source/WTF/wtf/OSAllocatorPosix.cpp.
        * wtf/posix/ThreadingPOSIX.cpp: Renamed from Source/WTF/wtf/ThreadingPthreads.cpp.
        * wtf/win/CONTRIBUTORS.pthreads-win32: Renamed from Source/WTF/wtf/CONTRIBUTORS.pthreads-win32.
        * wtf/win/OSAllocatorWin.cpp: Renamed from Source/WTF/wtf/OSAllocatorWin.cpp.
        * wtf/win/ThreadSpecificWin.cpp: Renamed from Source/WTF/wtf/ThreadSpecificWin.cpp.
        * wtf/win/ThreadingWin.cpp: Renamed from Source/WTF/wtf/ThreadingWin.cpp.

2019-01-28  Andy Estes  <aestes@apple.com>

        [watchOS] Enable Parental Controls content filtering
        https://bugs.webkit.org/show_bug.cgi?id=193939
        <rdar://problem/46641912>

        Reviewed by Ryosuke Niwa.

        * wtf/Platform.h:

2019-01-28  Ross Kirsling  <ross.kirsling@sony.com>

        [JSCOnly][WTF] Expose FileSystem.
        https://bugs.webkit.org/show_bug.cgi?id=193789

        Reviewed by Don Olmstead.

        * wtf/FileSystem.h:
        * wtf/PlatformJSCOnly.cmake:
        * wtf/posix/FileSystemPOSIX.cpp:
        (WTF::FileSystemImpl::getVolumeFreeSpace):
        * wtf/win/FileSystemWin.cpp:
        (WTF::FileSystemImpl::fileSystemRepresentation):

2019-01-28  Eric Carlson  <eric.carlson@apple.com>

        AVStreamSession isn't always available, make a HAVE compile flag for it
        https://bugs.webkit.org/show_bug.cgi?id=193889
        <rdar://problem/47452863>

        Reviewed by Jer Noble.

        * wtf/FeatureDefines.h:

2018-12-15  Darin Adler  <darin@apple.com>

        Replace many uses of String::format with more type-safe alternatives
        https://bugs.webkit.org/show_bug.cgi?id=192742

        Reviewed by Mark Lam.

        * wtf/WorkQueue.cpp:
        (WTF::WorkQueue::concurrentApply): Use makeString.

        * wtf/dtoa.cpp:
        (WTF::dtoa): Use sprintf instead of String::format in the comments,
        since these functions have nothing to do with WTF::String.

2019-01-25  Chris Dumez  <cdumez@apple.com>

        [iOS] Add support for the download attribute
        https://bugs.webkit.org/show_bug.cgi?id=167341
        <rdar://problem/30296281>

        Reviewed by Geoffrey Garen.

        Turn on HTML download attribute support on iOS.

        * wtf/FeatureDefines.h:

2019-01-25  David Kilzer  <ddkilzer@apple.com>

        Move soft-linking of Lookup.framework out of LookupSPI.h
        <https://webkit.org/b/193815>

        Reviewed by Tim Horton.

        * wtf/cocoa/SoftLinking.h:
        (SOFT_LINK_CONSTANT_FOR_HEADER):
        (SOFT_LINK_CONSTANT_FOR_SOURCE_WITH_EXPORT):
        (SOFT_LINK_CONSTANT_MAY_FAIL_FOR_HEADER):
        - Remove local declaration of constant.  This should be handled
          by including *SPI.h or "real" headers.
        (SOFT_LINK_CONSTANT_MAY_FAIL_FOR_SOURCE_WITH_EXPORT):
        - Remove local declaration of constant.
        - Rename from SOFT_LINK_CONSTANT_MAY_FAIL_FOR_SOURCE() and add
          `export` argument to support exporting of functions.
        (SOFT_LINK_CONSTANT_MAY_FAIL_FOR_SOURCE):
        - Redefine in terms of
          SOFT_LINK_CONSTANT_MAY_FAIL_FOR_SOURCE_WITH_EXPORT().

2019-01-24  Youenn Fablet  <youenn@apple.com>

        Use MonotonicTime in WorkerRunLoop
        https://bugs.webkit.org/show_bug.cgi?id=193417

        Reviewed by Saam Barati.

        * wtf/MessageQueue.h:
        (WTF::MessageQueue<DataType>::waitForMessage):
        (WTF::MessageQueue<DataType>::waitForMessageFilteredWithTimeout):

2019-01-24  Ross Kirsling  <ross.kirsling@sony.com>

        Move FileSystem to WTF
        https://bugs.webkit.org/show_bug.cgi?id=193602

        Reviewed by Yusuke Suzuki.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/FileMetadata.h: Renamed from Source/WebCore/platform/FileMetadata.h.
        * wtf/FileSystem.cpp: Renamed from Source/WebCore/platform/FileSystem.cpp.
        * wtf/FileSystem.h: Renamed from Source/WebCore/platform/FileSystem.h.
        * wtf/PlatformGTK.cmake:
        * wtf/PlatformMac.cmake:
        * wtf/PlatformPlayStation.cmake:
        * wtf/PlatformWPE.cmake:
        * wtf/PlatformWin.cmake:
        * wtf/cf/FileSystemCF.cpp: Renamed from Source/WebCore/platform/cf/FileSystemCF.cpp.
        * wtf/cocoa/FileSystemCocoa.mm: Renamed from Source/WebCore/platform/cocoa/FileSystemCocoa.mm.
        * wtf/glib/FileSystemGlib.cpp: Renamed from Source/WebCore/platform/glib/FileSystemGlib.cpp.
        * wtf/mac/FileSystemMac.mm: Renamed from Source/WebCore/platform/mac/FileSystemMac.mm.
        * wtf/posix/FileSystemPOSIX.cpp: Renamed from Source/WebCore/platform/posix/FileSystemPOSIX.cpp.
        * wtf/spi/mac/MetadataSPI.h: Renamed from Source/WebCore/PAL/pal/spi/mac/MetadataSPI.h.
        * wtf/win/FileSystemWin.cpp: Renamed from Source/WebCore/platform/win/FileSystemWin.cpp.
        * wtf/win/PathWalker.cpp: Renamed from Source/WebCore/platform/win/PathWalker.cpp.
        * wtf/win/PathWalker.h: Renamed from Source/WebCore/platform/win/PathWalker.h.

2019-01-24  Guillaume Emont  <guijemont@igalia.com>

        [JSC] Reenable baseline JIT on mips
        https://bugs.webkit.org/show_bug.cgi?id=192983

        Reviewed by Mark Lam.

        Use baseline JIT by default on MIPS.

        * wtf/Platform.h:

2019-01-24  David Kilzer  <ddkilzer@apple.com>

        Duplicate global variables: WTF::asciiCaseFoldTable
        <https://webkit.org/b/193726>
        <rdar://problem/47334622>

        Reviewed by Michael Catanzaro.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        - Add ASCIICType.cpp to build systems.

        * wtf/ASCIICType.cpp: Added.
        (WTF::asciiCaseFoldTable): Move table to here so there is only
        one copy.  Mark as exported for other frameworks to use.
        * wtf/ASCIICType.h:
        (WTF::asciiCaseFoldTable): Change to extern declaration, and
        mark as exported for other frameworks to use.

2019-01-23  Mark Lam  <mark.lam@apple.com>

        ARM64E should not ENABLE(SEPARATED_WX_HEAP).
        https://bugs.webkit.org/show_bug.cgi?id=193744
        <rdar://problem/46262952>

        Reviewed by Saam Barati.

        * wtf/Platform.h:

2019-01-23  David Kilzer  <ddkilzer@apple.com>

        Switch remaining CoreMedia soft-linking in WebKit over to CoreMediaSoftLink.{cpp,h}
        <https://webkit.org/b/193694>
        <rdar://problem/47464025>

        Reviewed by Tim Horton.

        * wtf/win/SoftLinking.h:
        (SOFT_LINK_CONSTANT_FOR_SOURCE_WITH_EXPORT):
        - Implement for Windows.
        (SOFT_LINK_CONSTANT_FOR_SOURCE):
        - Define using SOFT_LINK_CONSTANT_FOR_SOURCE_WITH_EXPORT().

2019-01-22  Tadeu Zagallo  <tzagallo@apple.com>

        Cache bytecode to disk
        https://bugs.webkit.org/show_bug.cgi?id=192782
        <rdar://problem/46084932>

        Reviewed by Keith Miller.

        BitVectors have to be friends with JSC::CacheBitVector to allow
        serializing its buffer as part of the bytecode cache encoding.

        * wtf/BitVector.h:

2019-01-21  Claudio Saavedra  <csaavedra@igalia.com>

        [GTK] Speculative build fix for Ubuntu LTS
        https://bugs.webkit.org/show_bug.cgi?id=193651

        Unreviewed build fix.

        * wtf/Assertions.h: Add missing <cstdlib> include.

2019-01-20  Saam Barati  <sbarati@apple.com>

        Rollout r240210: It broke tests on iOS
        https://bugs.webkit.org/show_bug.cgi?id=193640

        Unreviewed.

        * wtf/BitVector.h:

2019-01-20  Tadeu Zagallo  <tzagallo@apple.com>

        Cache bytecode to disk
        https://bugs.webkit.org/show_bug.cgi?id=192782
        <rdar://problem/46084932>

        Reviewed by Keith Miller.

        BitVectors have to be friends with JSC::CacheBitVector to allow
        serializing its buffer as part of the bytecode cache encoding.

        * wtf/BitVector.h:

2019-01-18  Tim Horton  <timothy_horton@apple.com>

        Get rid of ADVANCED_SPELL_CHECKING
        https://bugs.webkit.org/show_bug.cgi?id=193592

        Reviewed by Wenson Hsieh.

        * wtf/Platform.h:

2019-01-18  Jer Noble  <jer.noble@apple.com>

        SDK_VARIANT build destinations should be separate from non-SDK_VARIANT builds
        https://bugs.webkit.org/show_bug.cgi?id=189553

        Reviewed by Tim Horton.

        * Configurations/Base.xcconfig:
        * Configurations/SDKVariant.xcconfig: Added.

2019-01-18  Keith Miller  <keith_miller@apple.com>

        Gigacages should start allocations from a slide
        https://bugs.webkit.org/show_bug.cgi?id=193523

        Reviewed by Mark Lam.

        This patch changes some macros into constants since macros are the
        devil.

        * wtf/Gigacage.cpp:
        * wtf/Gigacage.h:

2019-01-18  Matt Lewis  <jlewis3@apple.com>

        Unreviewed, rolling out r240160.

        This broke multiple internal builds.

        Reverted changeset:

        "Gigacages should start allocations from a slide"
        https://bugs.webkit.org/show_bug.cgi?id=193523
        https://trac.webkit.org/changeset/240160

2019-01-18  Keith Miller  <keith_miller@apple.com>

        Gigacages should start allocations from a slide
        https://bugs.webkit.org/show_bug.cgi?id=193523

        Reviewed by Mark Lam.

        This patch changes some macros into constants since macros are the
        devil.

        * wtf/Gigacage.cpp:
        * wtf/Gigacage.h:

2019-01-17  Truitt Savell  <tsavell@apple.com>

        Unreviewed, rolling out r240124.

        This commit broke an internal build.

        Reverted changeset:

        "SDK_VARIANT build destinations should be separate from non-
        SDK_VARIANT builds"
        https://bugs.webkit.org/show_bug.cgi?id=189553
        https://trac.webkit.org/changeset/240124

2019-01-17  Jer Noble  <jer.noble@apple.com>

        SDK_VARIANT build destinations should be separate from non-SDK_VARIANT builds
        https://bugs.webkit.org/show_bug.cgi?id=189553

        Reviewed by Tim Horton.

        * Configurations/Base.xcconfig:
        * Configurations/SDKVariant.xcconfig: Added.

2019-01-16  Keith Miller  <keith_miller@apple.com>

        bmalloc should use JSC VM tag for gigacage
        https://bugs.webkit.org/show_bug.cgi?id=193496

        Reviewed by Mark Lam.

        Move most of the macros for vm tagging to bmalloc.

        * wtf/VMTags.h:

2019-01-16  Alberto Garcia  <berto@igalia.com>

        [WTF] Compilation fails with system malloc
        https://bugs.webkit.org/show_bug.cgi?id=172445

        Reviewed by Michael Catanzaro.

        Follow-up to r217270. The sysinfo() system call is specific to
        Linux so update the #ifdef checks accordingly.

        * wtf/RAMSize.cpp:
        (WTF::computeRAMSize):

2019-01-15  Chris Dumez  <cdumez@apple.com>

        Unreviewed, revert part of r239997 as it is not needed to fix the build.

        * wtf/RefCounter.h:

2019-01-15  Alex Christensen  <achristensen@webkit.org>

        Fix iOS build after r239993
        https://bugs.webkit.org/show_bug.cgi?id=193361

        * wtf/RefCounter.h:

2019-01-14  Michael Catanzaro  <mcatanzaro@igalia.com>

        Use unorm2_normalize instead of precomposedStringWithCanonicalMapping in userVisibleString
        https://bugs.webkit.org/show_bug.cgi?id=192945

        Reviewed by Alex Christensen.

        Replace use of the nice NSString function precomposedStringWithCanonicalMapping with the ICU
        API unorm2_normalize. This is to prep the code for translation to cross-platform C++. Of
        course this is much worse than the preexisting code, but this is just a transitional
        measure and not the final state of the code. It wouldn't make sense to do this if the code
        were to remain Objective C++.

        * wtf/cocoa/NSURLExtras.mm:
        (WTF::toNormalizationFormC):
        (WTF::userVisibleString):

2019-01-14  Alex Christensen  <achristensen@webkit.org>

        Bulgarian TLD should not punycode-encode URLs with Bulgarian Cyrillic characters
        https://bugs.webkit.org/show_bug.cgi?id=193411
        <rdar://problem/47215929>

        Reviewed by Alexey Proskuryakov.

        * wtf/cocoa/NSURLExtras.mm:
        (WTF::allCharactersAllowedByTLDRules):

2019-01-12  Timothy Hatcher  <timothy@apple.com>

        Have prefers-color-scheme: light always match on macOS versions before Mojave.
        https://bugs.webkit.org/show_bug.cgi?id=191655
        rdar://problem/46074680

        Reviewed by Megan Gardner.

        * wtf/Platform.h: Define HAVE_OS_DARK_MODE_SUPPORT on macOS 10.14.

2019-01-11  David Kilzer  <ddkilzer@apple.com>

        Follow-up: WorkQueue::concurrentApply() passes a raw pointer to a temporary String to Thread::create().
        https://bugs.webkit.org/show_bug.cgi?id=191350

        * wtf/WorkQueue.cpp:
        (WTF::WorkQueue::concurrentApply): Fix whitespace.

2019-01-11  Devin Rousso  <drousso@apple.com>

        Fix style CFNetworkSPI style checker warnings from r239698
        https://bugs.webkit.org/show_bug.cgi?id=193369

        Reviewed by Joseph Pecoraro.

        * wtf/Platform.h:

2019-01-11  Said Abou-Hallawa  <sabouhallawa@apple.com>

        WorkQueue::concurrentApply() passes a raw pointer to a temporary String to Thread::create().
        https://bugs.webkit.org/show_bug.cgi?id=191350

        Reviewed by Brent Fulgham.

        The non COCOA version of WorkQueue::concurrentApply() creates a temporary
        String for the threadName and passes the raw pointer of this String to
        Thread::create(). After freeing this String, Thread::entryPoint() uses
        the raw char pointer to internally initialize the thread.

        The fix is to use a single literal string for all the threads' names since
        they are created for a thread-pool.

        * wtf/WorkQueue.cpp:
        (WTF::WorkQueue::concurrentApply):

2019-01-11  Dominik Infuehr  <dinfuehr@igalia.com>

        Enable DFG on ARM/Linux again
        https://bugs.webkit.org/show_bug.cgi?id=192496

        Reviewed by Yusuke Suzuki.

        After changing the bytecode format DFG was disabled on all 32-bit
        architectures. Enable DFG now again on ARM/Linux.

        * wtf/Platform.h:

2019-01-10  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r239825.
        https://bugs.webkit.org/show_bug.cgi?id=193330

        Broke tests on armv7/linux bots (Requested by guijemont on
        #webkit).

        Reverted changeset:

        "Enable DFG on ARM/Linux again"
        https://bugs.webkit.org/show_bug.cgi?id=192496
        https://trac.webkit.org/changeset/239825

2019-01-10  John Wilander  <wilander@apple.com>

        Override the session configuration for cookieAcceptPolicy
        https://bugs.webkit.org/show_bug.cgi?id=190925
        <rdar://problem/45497382>

        Reviewed by Alexey Proskuryakov and Alex Christensen.

        * wtf/Platform.h:
            Definition of HAVE_CFNETWORK_OVERRIDE_SESSION_COOKIE_ACCEPT_POLICY.

2019-01-10  Dominik Infuehr  <dinfuehr@igalia.com>

        Enable DFG on ARM/Linux again
        https://bugs.webkit.org/show_bug.cgi?id=192496

        Reviewed by Yusuke Suzuki.

        After changing the bytecode format DFG was disabled on all 32-bit
        architectures. Enable DFG now again on ARM/Linux.

        * wtf/Platform.h:

2019-01-10  Carlos Garcia Campos  <cgarcia@igalia.com>

        [FreeType] Color emoji not properly supported
        https://bugs.webkit.org/show_bug.cgi?id=191976

        Reviewed by Michael Catanzaro.

        Add a name for combining enclosing keycap character.

        * wtf/unicode/CharacterNames.h:

2019-01-09  Carlos Eduardo Ramalho  <cadubentzen@gmail.com> and Fujii Hironori  <Hironori.Fujii@sony.com>

        Use directory local sequential numbers for Unified Sources filenames instead of global sequential numbers for CMake
        https://bugs.webkit.org/show_bug.cgi?id=192391

        Reviewed by Don Olmstead.

        Unified Source Builds are using global sequential numbers for
        bundle filenames UnifiedSource{sequential-number}.cpp. As the
        result, every new source file added would shift the next ones and
        prevent compiler caches from speeding up consecutive builds e.g.
        in git-bisect sessions.

        Changed it to directory local sequential numbers,
        UnifiedSource-{hash-of-dir-name}-{sequential-number-within-the-dir}.cpp.

        This is affecting only CMake builds which is where no
        '--max-cpp-bundle-count' nor '--max-obj-c-bundle-count' options
        are set. Xcode builds still use the old convention.

        * Scripts/generate-unified-source-bundles.rb: Add new instance
        variables @currentDirectory and @extraFiles to BundleManager.
        Still use global sequential numbers if --max-cpp-bundle-count or
        --max-obj-c-bundle-count is given.

2019-01-09  Alex Christensen  <achristensen@webkit.org>

        Expand use of sourceApplicationAuditData
        https://bugs.webkit.org/show_bug.cgi?id=192995
        <rdar://problem/46627875>

        Reviewed by Brady Eidson.

        * wtf/Platform.h:

2019-01-09  Mark Lam  <mark.lam@apple.com>

        Gigacage disabling checks should handle the GIGACAGE_ALLOCATION_CAN_FAIL case properly.
        https://bugs.webkit.org/show_bug.cgi?id=193292
        <rdar://problem/46485450>

        Reviewed by Yusuke Suzuki.

        Update the USE_SYSTEM_MALLOC version of Gigacage.h to match the bmalloc version.

        * wtf/Gigacage.h:

2019-01-07  David Kilzer  <ddkilzer@apple.com>

        Prefer RetainPtr<NSObject> to RetainPtr<NSObject *>
        <https://webkit.org/b/193056>

        Reviewed by Alex Christensen.

        * wtf/RetainPtr.h:
        (WTF::RetainPtr<T>::HelperPtrType):
        - Use C++ template metaprogramming to define a shared return
          type for adoptNS() and retainPtr() that uses
          RetainPtr<NSObject> instead of RetainPtr<NSObject *>.  The
          non-Objective-C typedef is used with retainPtr() for CFTypeRef
          objects.
        (WTF::adoptNS):
        - Only make declarations available when compilng with
          Objective-C.  The inline implementation is only available for
          Objective-C, so this makes the declarations consistent.
        - Change return type to remove '*' from NS types using
          RetainPtr<T>::HelperPtrType.
        (WTF::retainPtr):
        - Change return type to remove '*' from NS types using
          RetainPtr<T>::HelperPtrType.

        * wtf/SchedulePair.h:
        - Remove '*' from RetainPtr<> type.

2019-01-07  Eric Carlson  <eric.carlson@apple.com>

        A MediaTime timescale must never be zero
        https://bugs.webkit.org/show_bug.cgi?id=193156
        <rdar://problem/32504501>

        Reviewed by Jer Noble.

        * wtf/MediaTime.cpp:
        (WTF::greatestCommonDivisor): ASSERT if either parameter or return value is zero.
        (WTF::MediaTime::MediaTime): Create +/- infinity if passed zero timescale.
        (WTF::MediaTime::createWithFloat): Ditto.
        (WTF::MediaTime::createWithDouble): Ditto.
        (WTF::MediaTime::setTimeScale): Ditto.

2019-01-02  Alex Christensen  <achristensen@webkit.org>

        Homograph with LATIN SMALL LETTER R WITH FISHHOOK
        https://bugs.webkit.org/show_bug.cgi?id=192944

        Reviewed by Tim Horton.

        * wtf/cocoa/NSURLExtras.mm:
        (WTF::isLookalikeCharacter):

2019-01-02  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r239524.
        https://bugs.webkit.org/show_bug.cgi?id=193083

        basic browsing seems not to work (Requested by thorton on
        #webkit).

        Reverted changeset:

        "Expand use of sourceApplicationAuditData"
        https://bugs.webkit.org/show_bug.cgi?id=192995
        https://trac.webkit.org/changeset/239524

2018-12-28  Yusuke Suzuki  <yusukesuzuki@slowstart.org>

        Add ENABLE_UNIFIED_BUILDS option to cmake ports
        https://bugs.webkit.org/show_bug.cgi?id=193045

        Reviewed by Don Olmstead.

        * Scripts/generate-unified-source-bundles.rb:

2018-12-27  Alex Christensen  <achristensen@webkit.org>

        Resurrect Mac CMake build
        https://bugs.webkit.org/show_bug.cgi?id=192658

        Reviewed by Yusuke Suzuki.

        * wtf/PlatformMac.cmake:
        * wtf/cf/CFURLExtras.cpp:
        * wtf/cf/CFURLExtras.h:
        * wtf/cf/URLCF.cpp:
        * wtf/cocoa/NSURLExtras.h:
        * wtf/cocoa/NSURLExtras.mm:
        * wtf/cocoa/URLCocoa.mm:

2018-12-21  Dan Bernstein  <mitz@apple.com>

        Fixed building for macOS 10.13 using the macOS 10.14 SDK.

        * wtf/Platform.h: Changed HAVE_AUTHORIZATION_STATUS_FOR_MEDIA_TYPE to depend on the
          deployment target, not the SDK.

2018-12-20  Yusuke Suzuki  <yusukesuzuki@slowstart.org>

        [JSC] Implement "well-formed JSON.stringify" proposal
        https://bugs.webkit.org/show_bug.cgi?id=191677

        Reviewed by Darin Adler.

        This patch implements "well-formed JSON.stringify" proposal[1], which is now stage 3.
        JSON.stringify appended surrogate pair codes even if it is not paired appropriately.
        The proposal requires that broken surrogate pairs are unicode-escaped.

        [1]: https://github.com/tc39/proposal-well-formed-stringify

        * wtf/text/StringBuilderJSON.cpp:
        (WTF::appendQuotedJSONStringInternal):

2018-12-21  Alex Christensen  <achristensen@webkit.org>

        Expand use of sourceApplicationAuditData
        https://bugs.webkit.org/show_bug.cgi?id=192995
        <rdar://problem/46627875>

        Reviewed by Brady Eidson.

        * wtf/Platform.h:

2018-12-21  Alex Christensen  <achristensen@webkit.org>

        Revert r239503.
        https://bugs.webkit.org/show_bug.cgi?id=192944

        * wtf/cocoa/NSURLExtras.mm:
        (WTF::isLookalikeCharacter):

2018-12-20  Brent Fulgham  <bfulgham@apple.com>

        Show punycode if URL contains Latin small letter dotless i
        https://bugs.webkit.org/show_bug.cgi?id=192944
        <rdar://problem/46103047>

        Reviewed by Andy Estes.

        Revise our "lookalike character" logic to include the small Latin
        dotless i character.

        Test: fast/url/host.html

        * wtf/cocoa/NSURLExtras.mm:
        (WTF::isLookalikeCharacter):

2018-12-20  Chris Dumez  <cdumez@apple.com>

        Use Optional::hasValue() instead of Optional::has_value()
        https://bugs.webkit.org/show_bug.cgi?id=192948

        Reviewed by Tim Horton.

        * wtf/Hasher.h:
        (WTF::add):
        * wtf/Optional.h:

2018-12-20  Chris Dumez  <cdumez@apple.com>

        Use Optional::valueOr() instead of Optional::value_or()
        https://bugs.webkit.org/show_bug.cgi?id=192933

        Reviewed by Geoffrey Garen.

        * wtf/Optional.h:
        (WTF::Optional<T::valueOr const):

2018-12-20  Tadeu Zagallo  <tzagallo@apple.com>

        Consistently use MaxLength for all WTF strings
        https://bugs.webkit.org/show_bug.cgi?id=192853
        <rdar://problem/45726906>

        Reviewed by Mark Lam.

        MaxLength was introduced to be INT_MAX for WTF::String and StringImpl,
        but all the assertions were still done using UINT_MAX. Change it to
        use MaxLength for all checks.

        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::createUninitializedInternalNonEmpty):
        (WTF::StringImpl::reallocateInternal):
        (WTF::StringImpl::create):
        (WTF::StringImpl::convertToLowercaseWithoutLocale):
        (WTF::StringImpl::convertToUppercaseWithoutLocale):
        (WTF::StringImpl::convertToLowercaseWithLocale):
        (WTF::StringImpl::convertToUppercaseWithLocale):
        (WTF::StringImpl::foldCase):
        (WTF::StringImpl::find):
        (WTF::StringImpl::replace):
        (WTF::StringImpl::utf8ForCharacters):
        (WTF::StringImpl::tryGetUtf8ForRange const):
        * wtf/text/StringImpl.h:
        (WTF::lengthOfNullTerminatedString):
        (WTF::StringImpl::tryCreateUninitialized):
        (WTF::StringImpl::adopt):
        (WTF::StringImpl::maxInternalLength):
        * wtf/text/WTFString.cpp:
        (WTF::String::append):
        (WTF::String::insert):
        (WTF::String::fromUTF8):
        * wtf/text/WTFString.h:
        (WTF::String::reverseFind const):

2018-12-19  Chris Dumez  <cdumez@apple.com>

        wtf/Optional.h: move-constructor and move-assignment operator should disengage the value being moved from
        https://bugs.webkit.org/show_bug.cgi?id=192728
        <rdar://problem/46746779>

        Reviewed by Geoff Garen.

        Update optional's move-constructor and move-assignment operator to disengage the value being moved from.
        Rename to optional to Optional, make_optional() to makeOptional(), and move class from std to WTF namespace.

        Based on patch by David Kilzer.

        * wtf/*:

2018-12-19  Eric Carlson  <eric.carlson@apple.com>

        [MediaStream] Force system camera/microphone TCC prompt if necessary
        https://bugs.webkit.org/show_bug.cgi?id=192820
        <rdar://problem/42680098>

        Reviewed by Jer Noble.

        * wtf/Platform.h: Define HAVE_AUTHORIZATION_STATUS_FOR_MEDIA_TYPE.

2018-12-17  Chris Fleizach  <cfleizach@apple.com>

        Some builds are broken after r239262
        https://bugs.webkit.org/show_bug.cgi?id=192777

        Reviewed by Simon Fraser.

        * wtf/Platform.h:

2018-12-17  Daniel Bates  <dabates@apple.com>

        Support concatenating StringView with other string types
        https://bugs.webkit.org/show_bug.cgi?id=177566

        Reviewed by Darin Adler.

        Add operator+ overloads to StringOperators.h to support concatenating a StringView with
        other string types (e.g. String). This lets a person write more naturally looking code:

        stringView + string

        Instead of:

        makeString(stringView, string)

        * wtf/text/StringOperators.h:
        (WTF::operator+): Added various operator+ overloads.

2018-12-17  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r239265 and r239274.
        https://bugs.webkit.org/show_bug.cgi?id=192765

        unorm_normalize is deprecated, and broke an internal build
        (Requested by Truitt on #webkit).

        Reverted changesets:

        "[GTK][WPE] Need a function to convert internal URI to display
        ("pretty") URI"
        https://bugs.webkit.org/show_bug.cgi?id=174816
        https://trac.webkit.org/changeset/239265

        "Fix the Apple Internal Mac build with a newer SDK"
        https://trac.webkit.org/changeset/239274

2018-12-17  Daniel Bates  <dabates@apple.com>

        Fix the Apple Internal Mac build with a newer SDK

        * wtf/URLHelpers.cpp:
        (WTF::URLHelpers::userVisibleURL):

2018-12-17  Matt Lewis  <jlewis3@apple.com>

        Unreviewed, rolling out r239254.

        This broke the Windows 10 Debug build

        Reverted changeset:

        "Replace many uses of String::format with more type-safe
        alternatives"
        https://bugs.webkit.org/show_bug.cgi?id=192742
        https://trac.webkit.org/changeset/239254

2018-12-17  Ms2ger  <Ms2ger@igalia.com>

        [GTK][WPE] Need a function to convert internal URI to display ("pretty") URI
        https://bugs.webkit.org/show_bug.cgi?id=174816

        Reviewed by Michael Catanzaro.

        Translate userVisibleString and dependent code into platform-neutral C++
        in wtf/URLHelpers.{h,cpp}.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/URLHelpers.cpp: Added.
        (WTF::URLHelpers::loadIDNScriptWhiteList):
        (WTF::URLHelpers::isArmenianLookalikeCharacter):
        (WTF::URLHelpers::isArmenianScriptCharacter):
        (WTF::URLHelpers::isASCIIDigitOrValidHostCharacter):
        (WTF::URLHelpers::isLookalikeCharacter):
        (WTF::URLHelpers::whiteListIDNScript):
        (WTF::URLHelpers::initializeDefaultIDNScriptWhiteList):
        (WTF::URLHelpers::allCharactersInIDNScriptWhiteList):
        (WTF::URLHelpers::isSecondLevelDomainNameAllowedByTLDRules):
        (WTF::URLHelpers::isRussianDomainNameCharacter):
        (WTF::URLHelpers::allCharactersAllowedByTLDRules):
        (WTF::URLHelpers::mapHostName):
        (WTF::URLHelpers::collectRangesThatNeedMapping):
        (WTF::URLHelpers::applyHostNameFunctionToMailToURLString):
        (WTF::URLHelpers::applyHostNameFunctionToURLString):
        (WTF::URLHelpers::mapHostNames):
        (WTF::URLHelpers::createStringWithEscapedUnsafeCharacters):
        (WTF::URLHelpers::userVisibleURL):
        * wtf/URLHelpers.h: Added.
        * wtf/cocoa/NSURLExtras.mm:
        (WTF::URLHelpers::loadIDNScriptWhiteList):
        (WTF::decodePercentEscapes):
        (WTF::decodeHostName):
        (WTF::encodeHostName):
        (WTF::URLWithUserTypedString):
        (WTF::userVisibleString):

2018-12-15  Darin Adler  <darin@apple.com>

        Use warning-ignoring macros more consistently and simply
        https://bugs.webkit.org/show_bug.cgi?id=192743

        Reviewed by Mark Lam.

        * wtf/Assertions.h: Use IGNORE_WARNINGS_BEGIN rather than
        IGNORE_CLANG_WARNINGS_BEGIN since we don't need special handling for
        non-clang compilers, in part since the code is already inside
        #if COMPILER(CLANG), but also because it would be harmless to ignore this
        warning on non-clang; we should almost never use IGNORE_CLANG_WARNINGS_BEGIN.

2018-12-15  Darin Adler  <darin@apple.com>

        Replace many uses of String::format with more type-safe alternatives
        https://bugs.webkit.org/show_bug.cgi?id=192742

        Reviewed by Mark Lam.

        * wtf/WorkQueue.cpp:
        (WTF::WorkQueue::concurrentApply): Use makeString.

        * wtf/dtoa.cpp:
        (WTF::dtoa): Use sprintf instead of String::format in the comments,
        since these functions have nothing to do with WTF::String.

2018-12-14  Darin Adler  <darin@apple.com>

        Verify size is valid in USE_SYSTEM_MALLOC version of tryAllocateZeroedVirtualPages
        https://bugs.webkit.org/show_bug.cgi?id=192738
        rdar://problem/37502342

        Reviewed by Mark Lam.

        * wtf/Gigacage.cpp:
        (Gigacage::tryAllocateZeroedVirtualPages): Added a RELEASE_ASSERT just
        like the one in tryLargeZeroedMemalignVirtual in bmalloc.

2018-12-14  David Kilzer  <ddkilzer@apple.com>

        clang-tidy: Fix unnecessary copy of AtomicString each time one is logged
        <https://webkit.org/b/192710>
        <rdar://problem/46738962>

        Reviewed by Eric Carlson.

        * wtf/Logger.h:
        (WTF::LogArgument::toString): Make argument a const reference to
        avoid the copy.

2018-12-14  Zan Dobersek  <zdobersek@igalia.com>

        [GLib] RunLoop::dispatchAfter() GSource requires microsecond precision
        https://bugs.webkit.org/show_bug.cgi?id=192696

        Reviewed by Michael Catanzaro.

        The GSource we set up in GLib's RunLoop::dispatchAfter() implementation
        should support microsecond-precision delays. Such delays are common in
        JSC's Watchdog implementation and missing support for them has been
        causing test failures in the `testapi` program as well as some JSC
        tests that depend on the termination determination functionality of the
        JSC::Watchdog class.

        RunLoop::dispatchAfter() is changed to spawn a raw GSource that uses the
        existing GSourceFuncs implementation used elsewhere in GLib's RunLoop.
        The GSource's ready time is set manually, now with the necessary
        microsecond precision.

        * wtf/glib/RunLoopGLib.cpp:
        (WTF::RunLoop::dispatchAfter):

2018-12-13  Saam Barati  <sbarati@apple.com>

        The JSC shell should listen for memory pressure events and respond to them
        https://bugs.webkit.org/show_bug.cgi?id=192647

        Reviewed by Keith Miller.

        * wtf/MemoryPressureHandler.cpp:
        (WTF::MemoryPressureHandler::MemoryPressureHandler):
        (WTF::MemoryPressureHandler::setDispatchQueue):
        Make it so that we can customize which dispatch queue memory pressure
        events get handled on.

        * wtf/MemoryPressureHandler.h:
        (WTF::MemoryPressureHandler::setShouldLogMemoryMemoryPressureEvents):
        Make it so that we can disable logging that happens on each memory
        pressure event.

        * wtf/cocoa/MemoryPressureHandlerCocoa.mm:
        (WTF::MemoryPressureHandler::install):
        (WTF::MemoryPressureHandler::uninstall):
        (WTF::MemoryPressureHandler::holdOff):

2018-12-13  David Kilzer  <ddkilzer@apple.com>

        clang-tidy: Fix unnecessary parameter copies in ParallelHelperPool.cpp
        <https://webkit.org/b/192666>
        <rdar://problem/46697952>

        Reviewed by Alex Christensen.

        * wtf/ParallelHelperPool.cpp:
        (WTF::ParallelHelperClient::ParallelHelperClient): Use rvalue
        reference and WTFMove().
        (WTF::ParallelHelperClient::setTask): Ditto.
        (WTF::ParallelHelperClient::runTaskInParallel): Ditto.
        (WTF::ParallelHelperClient::runTask): Use const reference.
        * wtf/ParallelHelperPool.h: Update declarations to match
        implementations.

2018-12-12  Alex Christensen  <achristensen@webkit.org>

        Implement safe browsing in WebKit on WatchOS
        https://bugs.webkit.org/show_bug.cgi?id=192641
        <rdar://problem/46376188>

        Reviewed by Geoff Garen.

        * wtf/Platform.h:
        WatchOS has safe browsing, too!

2018-12-11  Fujii Hironori  <Hironori.Fujii@sony.com>

        [Win][Clang] Fix compilation warnings of WTF
        https://bugs.webkit.org/show_bug.cgi?id=192583

        Reviewed by Alex Christensen.

        clang-cl reports the following warnings.

        > [92/206] Building CXX object Source\WTF\wtf\CMakeFiles\WTF.dir\StackBounds.cpp.obj
        > ..\..\Source\WTF\wtf\StackBounds.cpp(163,48):  warning: missing field 'AllocationBase' initializer [-Wmissing-field-initializers]
        >     MEMORY_BASIC_INFORMATION stackOrigin = { 0 };
        >                                                ^
        > 1 warning generated.
        > [160/206] Building CXX object Source\WTF\wtf\CMakeFiles\WTF.dir\win\RunLoopWin.cpp.obj
        > ..\..\Source\WTF\wtf\win\RunLoopWin.cpp(34,54):  warning: ISO C++11 does not allow conversion from string literal to 'const LPWSTR' (aka 'wchar_t *const') [-Wwritable-strings]
        > static const LPWSTR kRunLoopMessageWindowClassName = L"RunLoopMessageWindow";
        >                                                      ^
        > ..\..\Source\WTF\wtf\win\RunLoopWin.cpp(86,32):  warning: missing field 'lpfnWndProc' initializer [-Wmissing-field-initializers]
        >     WNDCLASS windowClass = { 0 };
        >                                ^
        > 2 warnings generated.
        > [175/206] Building CXX object Source\WTF\wtf\CMakeFiles\WTF.dir\DateMath.cpp.obj
        > ..\..\Source\WTF\wtf\DateMath.cpp(125,20):  warning: unused function 'getLocalTime' [-Wunused-function]
        > static inline void getLocalTime(const time_t* localTime, struct tm* localTM)
        >                    ^
        > 1 warning generated.

        * wtf/DateMath.cpp:
        (WTF::getLocalTime): Defined only if used.
        * wtf/StackBounds.cpp:
        (WTF::StackBounds::currentThreadStackBoundsInternal): Initialize stackOrigin with '{ }'.
        * wtf/win/RunLoopWin.cpp: Change the type of kRunLoopMessageWindowClassName to LPCWSTR.
        (WTF::RunLoop::registerRunLoopMessageWindowClass): Initialize windowClass with '{ }'.

2018-12-11  Andy Estes  <aestes@apple.com>

        Introduce makeBlockPtr for lambdas
        https://bugs.webkit.org/show_bug.cgi?id=192594

        Reviewed by Alex Christensen.

        BlockPtr<...>::fromCallable is cumbersome because it requires repeating the callable's
        signature as a class template argument. This patch introduces an overload of makeBlockPtr
        that deduces the correct BlockPtr instantiation from a lambda's operator() signature.

        * wtf/BlockPtr.h:
        (WTF::makeBlockPtr):

        Adopted makeBlockPtr.

        * wtf/cocoa/WorkQueueCocoa.cpp:
        (WTF::WorkQueue::dispatch):
        (WTF::WorkQueue::dispatchAfter):
        (WTF::WorkQueue::concurrentApply):

2018-12-10  Don Olmstead  <don.olmstead@sony.com>

        Move ENABLE_RESOURCE_LOAD_STATISTICS to FeatureDefines.xcconfig
        https://bugs.webkit.org/show_bug.cgi?id=192573

        Reviewed by Simon Fraser.

        Remove ENABLE_RESOURCE_LOAD_STATISTICS from Platform.h and instead rely
        on it being set in FeatureDefines.xcconfig.

        * wtf/Platform.h:

2018-12-10  Alexey Proskuryakov  <ap@apple.com>

        Move ENABLE_SEC_ITEM_SHIM out of WebKit's config.h
        https://bugs.webkit.org/show_bug.cgi?id=192428

        Reviewed by Tim Horton.

        * wtf/Platform.h:

2018-12-10  Alexey Proskuryakov  <ap@apple.com>

        Move more macros out of WebKit's config.h
        https://bugs.webkit.org/show_bug.cgi?id=192430

        Reviewed by Tim Horton.

        * wtf/Platform.h:

2018-12-09  Yusuke Suzuki  <yusukesuzuki@slowstart.org>

        Unreviewed, fix build failure on GCC 8.2, part 2

        Add RefCountedArray::assign, and use it instead of operator= internally.
        We should have operator=(const RefCountedArray&) since it will be automatically generated
        if we do not have correct implementation here.

        * wtf/RefCountedArray.h:
        (WTF::RefCountedArray::operator=):
        (WTF::RefCountedArray::assign):

2018-12-09  Yusuke Suzuki  <yusukesuzuki@slowstart.org>

        Unreviewed, fix build failure on GCC 8.2

        We remove operator=<PtrTraits> call since it is not necessary.
        This is a workaround. It seems that GCC 8.2 fails to parse this specialization.

        * wtf/RefCountedArray.h:

2018-12-08  Darin Adler  <darin@apple.com>

        Fix stray-semicolon warning seen with a new version of clang in Xcode
        https://bugs.webkit.org/show_bug.cgi?id=192534

        Reviewed by Alexey Proskuryakov.

        * wtf/Lock.h: Removed an unneeded semicolon.

2018-12-08  Adrian Perez de Castro  <aperez@igalia.com>

        [WTF] Debug build fails due conflicting abort() method
        https://bugs.webkit.org/show_bug.cgi?id=192491

        Reviewed by Michael Catanzaro.

        * wtf/Assertions.h: Use namespaced std::abort() insted of plain abort() to avoid clashes
        inside classes which have an ::abort() method, but only when __cplusplus is defined to
        allow inclusion of the header in plain C sources.

2018-12-07  Andy Estes  <aestes@apple.com>

        [Cocoa] Add optional variants of SOFT_LINK_CLASS_FOR_SOURCE
        https://bugs.webkit.org/show_bug.cgi?id=192498

        Reviewed by Tim Horton.

        Added SOFT_LINK_CLASS_FOR_SOURCE_OPTIONAL and SOFT_LINK_CLASS_FOR_SOURCE_OPTIONAL_WITH_EXPORT,
        which behave like their non-optional variants but do not require their classes to exist.

        * wtf/cocoa/SoftLinking.h:

2018-12-06  Alexey Proskuryakov  <ap@apple.com>

        Move USE_NEW_THEME out of WebCore's config.h
        https://bugs.webkit.org/show_bug.cgi?id=192426

        Reviewed by Tim Horton.

        * wtf/Platform.h:

2018-12-04  Carlos Garcia Campos  <cgarcia@igalia.com>

        [SOUP] Move URLSoup back to WebCore after r238771
        https://bugs.webkit.org/show_bug.cgi?id=192306

        Reviewed by Michael Catanzaro.

        In r238771 URL was moved from WebCore to WTF, including the soup implementation. Unfortunately that added
        libsoup as a new dependency of libjavascriptcoregtk.

        * wtf/PlatformGTK.cmake:
        * wtf/PlatformWPE.cmake:
        * wtf/URL.h:
        * wtf/glib/URLGLib.cpp: Copied from Source/WTF/wtf/glib/URLSoup.cpp.

2018-12-03  Don Olmstead  <don.olmstead@sony.com>

        Fix some unused parameter warnings
        https://bugs.webkit.org/show_bug.cgi?id=192336

        Reviewed by Fujii Hironori.

        * wtf/StackTrace.cpp:
        (WTFGetBacktrace):
        (WTF::StackTrace::demangle):
        * wtf/generic/MemoryPressureHandlerGeneric.cpp:
        (WTF::MemoryPressureHandler::holdOff):
        (WTF::MemoryPressureHandler::respondToMemoryPressure):

2018-12-01  Alexey Proskuryakov  <ap@apple.com>

        Modernize version check for _suppressedAutoAddedHTTPHeaders
        https://bugs.webkit.org/show_bug.cgi?id=192175

        Reviewed by Tim Horton.

        * wtf/Platform.h:

2018-11-30  Alex Christensen  <achristensen@webkit.org>

        Fix Windows build after r238771
        https://bugs.webkit.org/show_bug.cgi?id=190234

        * wtf/URLParser.h:
        Just make defaultPortForProtocol public so we don't have to worry about DLL linkage.

2018-11-30  Alex Christensen  <achristensen@webkit.org>

        Move URL from WebCore to WTF
        https://bugs.webkit.org/show_bug.cgi?id=190234

        Reviewed by Keith Miller.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Forward.h:
        * wtf/PlatformGTK.cmake:
        * wtf/PlatformMac.cmake:
        * wtf/PlatformWPE.cmake:
        * wtf/PlatformWin.cmake:
        * wtf/URL.cpp: Renamed from Source/WebCore/platform/URL.cpp.
        (WTF::URL::protocolIs):
        * wtf/URL.h: Renamed from Source/WebCore/platform/URL.h.
        * wtf/URLHash.h: Renamed from Source/WebCore/platform/URLHash.h.
        (WTF::URLHash::hash):
        (WTF::URLHash::equal):
        * wtf/URLParser.cpp: Renamed from Source/WebCore/platform/URLParser.cpp.
        (WTF::URLParser::isInUserInfoEncodeSet):
        (WTF::URLParser::parseAuthority):
        * wtf/URLParser.h: Renamed from Source/WebCore/platform/URLParser.h.
        (WTF::URLParser::URLParser):
        (WTF::URLParser::result):
        * wtf/cf/CFURLExtras.cpp: Renamed from Source/WebCore/platform/cf/CFURLExtras.cpp.
        * wtf/cf/CFURLExtras.h: Renamed from Source/WebCore/platform/cf/CFURLExtras.h.
        * wtf/cf/URLCF.cpp: Renamed from Source/WebCore/platform/cf/URLCF.cpp.
        * wtf/cocoa/NSURLExtras.h: Copied from Source/WebCore/loader/archive/ArchiveResourceCollection.h.
        * wtf/cocoa/NSURLExtras.mm: Copied from Source/WebCore/platform/mac/WebCoreNSURLExtras.mm.
        (WTF::isArmenianLookalikeCharacter):
        (WTF::isArmenianScriptCharacter):
        (WTF::isASCIIDigitOrValidHostCharacter):
        (WTF::isLookalikeCharacter):
        (WTF::whiteListIDNScript):
        (WTF::readIDNScriptWhiteListFile):
        (WTF::allCharactersInIDNScriptWhiteList):
        (WTF::isSecondLevelDomainNameAllowedByTLDRules):
        (WTF::isRussianDomainNameCharacter):
        (WTF::allCharactersAllowedByTLDRules):
        (WTF::mapHostNameWithRange):
        (WTF::hostNameNeedsDecodingWithRange):
        (WTF::hostNameNeedsEncodingWithRange):
        (WTF::decodeHostNameWithRange):
        (WTF::encodeHostNameWithRange):
        (WTF::decodeHostName):
        (WTF::encodeHostName):
        (WTF::collectRangesThatNeedMapping):
        (WTF::collectRangesThatNeedEncoding):
        (WTF::collectRangesThatNeedDecoding):
        (WTF::applyHostNameFunctionToMailToURLString):
        (WTF::applyHostNameFunctionToURLString):
        (WTF::mapHostNames):
        (WTF::stringByTrimmingWhitespace):
        (WTF::URLByTruncatingOneCharacterBeforeComponent):
        (WTF::URLByRemovingResourceSpecifier):
        (WTF::URLWithData):
        (WTF::dataWithUserTypedString):
        (WTF::URLWithUserTypedString):
        (WTF::URLWithUserTypedStringDeprecated):
        (WTF::hasQuestionMarkOnlyQueryString):
        (WTF::dataForURLComponentType):
        (WTF::URLByRemovingComponentAndSubsequentCharacter):
        (WTF::URLByRemovingUserInfo):
        (WTF::originalURLData):
        (WTF::createStringWithEscapedUnsafeCharacters):
        (WTF::userVisibleString):
        (WTF::isUserVisibleURL):
        (WTF::rangeOfURLScheme):
        (WTF::looksLikeAbsoluteURL):
        * wtf/cocoa/URLCocoa.mm: Renamed from Source/WebCore/platform/mac/URLMac.mm.
        (WTF::URL::URL):
        (WTF::URL::createCFURL const):
        * wtf/glib/GUniquePtrSoup.h: Renamed from Source/WebCore/platform/network/soup/GUniquePtrSoup.h.
        * wtf/glib/URLSoup.cpp: Renamed from Source/WebCore/platform/soup/URLSoup.cpp.

2018-11-30  Alexey Proskuryakov  <ap@apple.com>

        Move USE_CFNETWORK_IGNORE_HSTS to its proper place
        https://bugs.webkit.org/show_bug.cgi?id=192173

        Reviewed by Tim Horton.

        * wtf/Platform.h: Also renamed it to better match other version checks.

2018-11-29  Alexey Proskuryakov  <ap@apple.com>

        Modernize the check for kCFURLRequestContentDecoderSkipURLCheck existence
        https://bugs.webkit.org/show_bug.cgi?id=192041

        Reviewed by Tim Horton.

        * wtf/Platform.h:

2018-11-28  Mark Lam  <mark.lam@apple.com>

        ENABLE_SEPARATED_WX_HEAP needs to be defined in Platform.h.
        https://bugs.webkit.org/show_bug.cgi?id=192110
        <rdar://problem/46317746>

        Reviewed by Saam Barati.

        Contrary my previous claim in r238564, ENABLE_SEPARATED_WX_HEAP needs to be
        defined in Platform.h because it is also needed in WebCore for the CSS JIT.  Also
        contrary to my previous claim, ENABLE(FAST_JIT_PERMISSIONS) is defined for WebCore
        (and other projects) as well as JSC.  Hence, there's no reason why
        ENABLE_SEPARATED_WX_HEAP cannot be defined in Platform.h.

        * wtf/Platform.h:

2018-11-28  Keith Rollin  <krollin@apple.com>

        Update generate-unified-source-bundles.rb to generate .xcfilelist files
        https://bugs.webkit.org/show_bug.cgi?id=192029
        <rdar://problem/46285918>

        Reviewed by Alex Christensen.

        Update generate-unified-source-bundles.rb to generate output for
        .xcfilelist files. These files are used to indicate the sets of input
        and output files to Run Script build phases in Xcode. By invoking
        generate-unified-source-bundles.rb with -generate-xcfilelists, the
        script generates these .xcfilelist files. These .xcfilelist files can
        then be used to specify the inputs and outputs of the Generate Unified
        Sources build phases.

        * Scripts/generate-unified-source-bundles.rb:

2018-11-28  Alexey Proskuryakov  <ap@apple.com>

        Remove another OS version check from NetworkDataTaskCocoa.mm
        https://bugs.webkit.org/show_bug.cgi?id=192046

        Reviewed by Alex Christensen.

        * wtf/Platform.h:

2018-11-28  Alexey Proskuryakov  <ap@apple.com>

        Modernize version checks for same site cookie support
        https://bugs.webkit.org/show_bug.cgi?id=192054

        Reviewed by Tim Horton.

        * wtf/Platform.h:

2018-11-27  Alexey Proskuryakov  <ap@apple.com>

        Modernize the check for async _saveCookies existence
        https://bugs.webkit.org/show_bug.cgi?id=191987

        Reviewed by Dean Jackson.

        * wtf/Platform.h: Added a specific macro for this. Not changing the behavior here,
        although it seems very likely that we want to do the same on other iOS family OSes.

2018-11-26  Fujii Hironori  <Hironori.Fujii@sony.com>

        [Win][Clang] SOFT_LINK reports warning: implicit conversion between pointer-to-function and pointer-to-object is a Microsoft extension [-Wmicrosoft-cast]
        https://bugs.webkit.org/show_bug.cgi?id=191960

        Reviewed by Alex Christensen.

        * wtf/win/SoftLinking.h: Do reinterpret_cast<void*> a function
        pointer argument of EncodePointer. Changed the type of stored
        function pointer returned by EncodePointer.

2018-11-26  Sam Weinig  <sam@webkit.org>

        Streamline ListHashSet use in floating object code
        https://bugs.webkit.org/show_bug.cgi?id=191957

        Reviewed by Alex Christensen.

        * wtf/ListHashSet.h:
        Reverses the order of the template arguments for the find() and contains()
        overload that allow specifying a hash translator to allow the compiler to
        deduce type T. This simplifies call sites and matches other WTF containers.

2018-11-25  Michael Catanzaro  <mcatanzaro@igalia.com>

        CRASH() should call abort() except on Darwin and in developer builds
        https://bugs.webkit.org/show_bug.cgi?id=184408

        Reviewed by Daniel Bates.

        CRASH() should call abort() except on Darwin and in developer builds, as discussed on
        webkit-dev. This should be slightly nicer than dereferencing 0xbadbeef.

        On Darwin, CRASH() uses a breakpoint trap, which seems to corrupt the stack on Linux, so we
        can't do that.

        Continue to call WTFCrash() in developer mode, and make no changes to WTFCrash(), since it
        is reportedly useful in nightmare scenarios where core dumps are unavailable.

        We also have to define CRASH_UNDER_CONSTEXPR_CONTEXT(). It's a bit odd that it's possible to
        use a non-constexpr function here, but it works. Currently this macro uses WTFCrash(), which
        is also non-constexpr.

        * wtf/Assertions.h:

2018-11-25  Michael Catanzaro  <mcatanzaro@igalia.com>

        Unreviewed, rolling out r238469.

        Broke the build

        Reverted changeset:

        "CRASH() should call abort() except on Darwin and in developer
        builds"
        https://bugs.webkit.org/show_bug.cgi?id=184408
        https://trac.webkit.org/changeset/238469

2018-11-24  Andy Estes  <aestes@apple.com>

        [Cocoa] SOFT_LINK_CLASS_FOR_{HEADER,SOURCE} should generate a more concise getter function
        https://bugs.webkit.org/show_bug.cgi?id=191899

        Reviewed by Dean Jackson.

        Currently, SOFT_LINK_CLASS_FOR_HEADER declares a class getter function that includes the
        framework name. For example, NSView would have a class getter named
        namespace::get_AppKit_NSViewClass().

        Including the framework name in the getter is unnecessary. Objective-C classes already exist
        in a global namespace, so there is no need to disambiguate class names by framework. This
        patch elides the framework name from the getter function. For example, NSView would now have
        a getter named namespace::getNSViewClass().

        * wtf/cocoa/SoftLinking.h:

2018-11-24  Michael Catanzaro  <mcatanzaro@igalia.com>

        CRASH() should call abort() except on Darwin and in developer builds
        https://bugs.webkit.org/show_bug.cgi?id=184408

        Reviewed by Daniel Bates.

        CRASH() should call abort() except on Darwin and in developer builds, as discussed on
        webkit-dev. This should be slightly nicer than dereferencing 0xbadbeef.

        On Darwin, CRASH() uses a breakpoint trap, which seems to corrupt the stack on Linux, so we
        can't do that.

        Continue to call WTFCrash() in developer mode, and make no changes to WTFCrash(), since it
        is reportedly useful in nightmare scenarios where core dumps are unavailable.

        * wtf/Assertions.h:

2018-11-23  Sam Weinig  <sam@webkit.org>

        Add raw pointer overloads to ListHashSet via SmartPtr specialized functions
        https://bugs.webkit.org/show_bug.cgi?id=191936

        Reviewed by Zalan Bujtas.

        Adds overloads for find, contains, insertBefore and remove that take raw pointers
        when the value type V of a ListHashSet is true for the predicate IsSmartPtr<V>::value.
        This brings the interface to ListHashSet closer inline with HashSet, HashMap and HashCountedSet
        which already have this functionality. Like in the other collections, this is especially
        useful when using std::unique_ptr<> as the value, since there would be no way to pass it
        to these functions. One difference between this set of overloads is the inclusion of insertBefore,
        which is unique to ListHashSet. As would be expected, this specialization only changes the first
        parameter, the one that needs to be found, to support a raw pointer.  

        * wtf/ListHashSet.h:
        (WTF::U>::find):
        (WTF::U>::find const):
        (WTF::U>::contains const):
        (WTF::U>::insertBefore):
        (WTF::U>::remove):

2018-11-21  Yusuke Suzuki  <yusukesuzuki@slowstart.org>

        [JSC] Drop ARM_TRADITIONAL support in LLInt, baseline JIT, and DFG
        https://bugs.webkit.org/show_bug.cgi?id=191675

        Reviewed by Mark Lam.

        * wtf/InlineASM.h:
        * wtf/Platform.h:

2018-11-21  Andy Estes  <aestes@apple.com>

        [Cocoa] Create a soft-linking file for PassKit
        https://bugs.webkit.org/show_bug.cgi?id=191875
        <rdar://problem/46203215>

        Reviewed by Myles Maxfield.

        * wtf/Platform.h: Defined USE_PASSKIT.
        * wtf/cocoa/SoftLinking.h: Added _WITH_EXPORT variants of SOFT_LINK_FRAMEWORK_FOR_SOURCE,
        SOFT_LINK_PRIVATE_FRAMEWORK_FOR_SOURCE, SOFT_LINK_CLASS_FOR_SOURCE,
        SOFT_LINK_FUNCTION_FOR_SOURCE, and SOFT_LINK_CONSTANT_FOR_SOURCE.

2018-11-21  Dominik Infuehr  <dinfuehr@igalia.com>

        Enable JIT on ARM/Linux
        https://bugs.webkit.org/show_bug.cgi?id=191548

        Reviewed by Yusuke Suzuki.

        Enable JIT by default on ARMv7/Linux after it was disabled with
        recent bytcode format change.

        * wtf/Platform.h:

2018-11-14  Keith Rollin  <krollin@apple.com>

        Fix #end vs. #endif typo.
        https://bugs.webkit.org/show_bug.cgi?id=191668
        <rdar://problem/46081704>

        Reviewed by Alexey Proskuryakov.

        Source/WebCore/SourcesCocoa.txt had a #end that should have been a
        #endif. Fix this, an add a check to generate-unified-source-bundles.rb
        to detect similar typos.

        * Scripts/generate-unified-source-bundles.rb:

2018-11-12  Mark Lam  <mark.lam@apple.com>

        Add OOM detection to StringPrototype's substituteBackreferences().
        https://bugs.webkit.org/show_bug.cgi?id=191563
        <rdar://problem/45720428>

        Reviewed by Saam Barati.

        Enhanced StringBuilder::toString() to skip the shrinkToFit(), reifyString(), and
        the hasOverflowed() check if m_string is not null.  When m_string is not null,
        the StringBuilder either only has a single String in m_string (with m_buffer being 
        null), or reifyString() has already been called (resulting in a non-null m_string
        with a possibly non-null m_buffer).

        We can skip the overflow check because:
        1. if the StringBuilder only has a single String, then there cannot be an overflow.
        2. if reifyString() has already been called, then the hasOverflowed() checked has
           already been done because every code path that calls reifyString() first does
           the hasOverflowed() check.

        We can skip shrinkToFit() because it only applies to m_buffer.
        1. if the StringBuilder only has a single String, then there's no m_buffer to shrink.
        2. if reifyString() has already been called, then we either came down
           a. the toString() path with a null m_string previously, where we would have
              already called shrinkToFit() before reifyString(), or
           b. the toStringPreserveCapacity() path where we don't want to shrinkToFit().

        We can skip reifyString() because:
        1. if the StringBuilder only has a single String, then the string is already reified.
        2. if reifyString() has been already called, then the string is already reified.

        Note that if m_string is the null string and m_buffer is null, reifyString() will
        replace it with the empty string.  For this reason, we cannot solely check for
        !m_buffer because we need to reify the null string into the empty string.

        Note also that if m_string is null and m_buffer is non-null, reifyString() will
        create a String and set m_string to it.  However, m_buffer remains non-null.
        For this reason, we cannot assert !m_buffer alone when m_string is non-null.
        We add a m_isReified flag (only when assertions are enabled) to track the reified
        case where both m_buffer and m_string are non-null.

        * wtf/text/StringBuilder.cpp:
        (WTF::StringBuilder::reifyString const):
        * wtf/text/StringBuilder.h:
        (WTF::StringBuilder::toString):

2018-11-10  Benjamin Poulain  <benjamin@webkit.org>

        Fix a fixme: rename wtfObjcMsgSend to wtfObjCMsgSend
        https://bugs.webkit.org/show_bug.cgi?id=191492

        Reviewed by Alex Christensen.

        Because renaming ObjcRuntimeExtras.h to ObjCRuntimeExtras.h only changes
        the cases, some systems have issues with applying this patch.

        To work around the problem, the change is made is two patches, first rename to
        WTFObjCRuntimeExtras.h, then back to ObjCRuntimeExtras.h.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/WTFObjCRuntimeExtras.h: Renamed from Source/WTF/wtf/ObjcRuntimeExtras.h.
        (wtfObjCMsgSend):

2018-11-09  Keith Miller  <keith_miller@apple.com>

        LLInt VectorSizeOffset should be based on offset extraction
        https://bugs.webkit.org/show_bug.cgi?id=191468

        Reviewed by Yusuke Suzuki.

        Make things friends with LLIntOffsetsExtractor.

        * wtf/RefCountedArray.h:
        * wtf/Vector.h:

2018-11-09  Jim Mason  <jmason@ibinx.com>

        [WTF] Changes in bug 188867 break non-Linux Unix builds
        https://bugs.webkit.org/show_bug.cgi?id=191380

        The intention of 188867 was to split out platform-specific
        heap query/release code.  Any unsupported platform
        would use a generic, no-op stub.  However, wtf/PlatformGTK.cmake
        ended up sending all non-Linux platforms through the Linux
        implementation, which breaks the build for those platforms.
        This includes any user of the GTK target which is not Linux,
        such as the *BSDs, Solaris, etc.

        Reviewed by Yusuke Suzuki.

        * wtf/PlatformGTK.cmake: Updated to include Linux-specific
        code only for Linux; all other platforms use the generic stub.

2018-11-06  Geoffrey Garen  <ggaren@apple.com>

        Removed mbmalloc target from WTF
        https://bugs.webkit.org/show_bug.cgi?id=191313

        Reviewed by Saam Barati.

        For benchmarking, WTF::fastMalloc is no longer meaningfully different
        from bmalloc. (And bmalloc has its own mbmalloc target.)

        * Configurations/mbmalloc.xcconfig: Removed.
        * WTF.xcodeproj/project.pbxproj:
        * wtf/mbmalloc.cpp: Removed.

2018-11-08  Alexey Proskuryakov  <ap@apple.com>

        Re-add PLATFORM(IOS), now with the strict meaning
        https://bugs.webkit.org/show_bug.cgi?id=191281

        Reviewed by Tim Horton.

        * wtf/Platform.h: No change in behavior. Some of the macros look a bit weird
        when expanded, it might be that the values are incorrect for some flavors of iOS family.

2018-11-08  Dean Jackson  <dino@apple.com>

        Add a String literal that returns a String
        https://bugs.webkit.org/show_bug.cgi?id=191425
        <rdar://problem/45914556>

        Reviewed by Sam Weinig.

        Add a new String literal, _str, that will return a String type.
        This is useful when ""_s won't work, such as for things that
        don't take an ASCIILiteral directly e.g. ExceptionOr<String>
        or Variants.

        * wtf/text/WTFString.h:
        (WTF::StringLiterals::operator _str): Added.

2018-11-06  Justin Fan  <justin_fan@apple.com>

        [WebGPU] Experimental prototype for WebGPURenderPipeline and WebGPUSwapChain
        https://bugs.webkit.org/show_bug.cgi?id=191291

        Reviewed by Myles Maxfield.

        Properly disable WEBGPU on all non-Metal platforms for now.

        * wtf/Platform.h:

2018-11-05  Myles C. Maxfield  <mmaxfield@apple.com>

        Cache glyph paths and share underline skipping code between all the ports
        https://bugs.webkit.org/show_bug.cgi?id=191239

        Reviewed by Alex Christensen.

        Remove CSS3_TEXT_DECORATION_SKIP_INK. It's now interoperable and part of the Web Platform.

        * wtf/Platform.h:

2018-11-05  Dominik Infuehr  <dinfuehr@igalia.com>

        Enable LLInt on ARMv7/Linux
        https://bugs.webkit.org/show_bug.cgi?id=191190

        Reviewed by Yusuke Suzuki.

        After enabling the new bytecode format in r237547, C_LOOP was
        forced on all 32-bit platforms. Now enable LLInt again on
        ARMv7-Thumb2/Linux by default.

        * wtf/Platform.h:

2018-11-04  Fujii Hironori  <Hironori.Fujii@sony.com>

        [Win] Use C++14, not C++17
        https://bugs.webkit.org/show_bug.cgi?id=191101

        Reviewed by Alex Christensen.

        * wtf/StdLibExtras.h: Use _MSVC_LANG to check C++ language version
        instead of _MSC_FULL_VER.

2018-11-02  Justin Fan  <justin_fan@apple.com>

        [WebGPU] Experimental prototype for MSL shaders
        https://bugs.webkit.org/show_bug.cgi?id=191084

        Reviewed by Dean Jackson.

        Disabling WebGPU on non-Cocoa platforms and iOS Simulator.

        * wtf/Platform.h:

2018-11-01  Jiewen Tan  <jiewen_tan@apple.com>

        Replace CommonRandom SPI with API
        https://bugs.webkit.org/show_bug.cgi?id=191178
        <rdar://problem/45722391>

        Reviewed by Brent Fulgham.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/RandomDevice.cpp:
        (WTF::RandomDevice::cryptographicallyRandomValues):
        * wtf/spi/darwin/CommonCryptoSPI.h: Removed.

2018-11-01  Fujii Hironori  <Hironori.Fujii@sony.com>

        Rename <wtf/unicode/UTF8.h> to <wtf/unicode/UTF8Conversion.h> in order to avoid conflicting with ICU's unicode/utf8.h
        https://bugs.webkit.org/show_bug.cgi?id=189693

        Reviewed by Yusuke Suzuki.

        * WTF.xcodeproj/project.pbxproj: Replaced unicode/UTF8.{cpp,h} with unicode/UTF8Conversion.{cpp,h}.
        * wtf/CMakeLists.txt: Ditto.
        * wtf/text/AtomicStringImpl.cpp: Replaced <wtf/unicode/UTF8.h> with <wtf/unicode/UTF8Conversion.h>.
        * wtf/text/StringImpl.cpp: Ditto.
        * wtf/text/StringView.cpp: Ditto.
        * wtf/text/WTFString.cpp: Ditto.
        * wtf/unicode/UTF8Conversion.cpp: Renamed from Source/WTF/wtf/unicode/UTF8.cpp.
        * wtf/unicode/UTF8Conversion.h: Renamed from Source/WTF/wtf/unicode/UTF8.h.

2018-10-30  Don Olmstead  <don.olmstead@sony.com>

        [PlayStation] Enable JavaScriptCore
        https://bugs.webkit.org/show_bug.cgi?id=191072

        Reviewed by Brent Fulgham.

        Add platform files for the PlayStation port.

        * wtf/PlatformPlayStation.cmake: Added.

2018-10-30  David Kilzer  <ddkilzer@apple.com>

        XSLTProcessor should limit max transform depth
        <https://webkit.org/b/191075>
        <rdar://problem/45531453>

        Reviewed by Alex Christensen.

        * wtf/cocoa/SoftLinking.h:
        (SOFT_LINK_VARIABLE_FOR_HEADER):
        (SOFT_LINK_VARIABLE_FOR_SOURCE):
        - Add macros for non-constant global variables.

2018-10-30  Alexey Proskuryakov  <ap@apple.com>

        Clean up some obsolete MAX_ALLOWED macros
        https://bugs.webkit.org/show_bug.cgi?id=190916

        Reviewed by Tim Horton.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/PlatformMac.cmake:
        * wtf/spi/cocoa/NSMapTableSPI.h: Removed. This was only needed for old SDKs.

2018-10-29  Mark Lam  <mark.lam@apple.com>

        Correctly detect string overflow when using the 'Function' constructor.
        https://bugs.webkit.org/show_bug.cgi?id=184883
        <rdar://problem/36320331>

        Reviewed by Saam Barati.

        1. Enhanced StringBuilder so that it supports 2 modes of behavior:
           a. StringBuilder::OverflowHandler::CrashOnOverflow.
           b. StringBuilder::OverflowHandler::RecordOverflow.

           CrashOnOverflow will crash the moment an overflow or failure to allocate
           memory is detected.

           RecordOverflow will make StringBuilder::hasOverflowed() return true when an
           overflow or failure to allocate memory is detected.  However, if the user
           invokes toString(), toStringPreserveCapacity(), toAtomicString(), length(),
           capacity(), isEmpty(), characters8(), or characters16(), then the StringBuilder
           will crash regardless because these methods can only meaningfully do their
           work and return a result if and only if the builder has not overflowed.

           By default, the StringBuilder crashes on overflow (the old behavior) unless it
           is explicitly constructed with the StringBuilder::OverflowHandler::RecordOverflow
           enum.

           Design note:

           The StringBuilder can only be put in 1 of the 2 modes at the time of
           construction.  This means that we could have implemented it as a template
           that is parameterized on an OverflowHandler class (like CheckedArithmetic)
           instead of using a runtime check in the ConditionalCrashOnOverflow handler.

           However, I was not able to get clang to export the explicitly instantiated
           instances (despite the methods having being decorated with WTF_EXPORT_PRIVATE).
           Since the StringBuilder is a transient object (not stored for a long time on
           the heap), and the runtime check of the boolean is not that costly compared
           to other work that StringBuilder routinely does (e.g. memcpy), using the
           new ConditionalCrashOnOverflow (which does a runtime check to determine to
           crash or not on overflow) is fine.

           When clang is able to export explicitly instantiated template methods, we can
           templatize StringBuilder and do away with ConditionalCrashOnOverflow.
           See https://bugs.webkit.org/show_bug.cgi?id=191050.

        To support the above, we also did:

        2. Enhanced all StringBuilder append and buffer allocation methods to be able to
           fail without crashing.  This also meant that ...

        3. Added tryReallocate() support to StringImpl.  tryRealloc() was added to
           FastMalloc, and bmalloc (and related peers) to enable this.

        4. Added ConditionalCrashOnOverflow, which can choose at runtime whether to behave
           like CrashOnOverflow or RecordOverflow.

        * wtf/CheckedArithmetic.h:
        (WTF::ConditionalCrashOnOverflow::overflowed):
        (WTF::ConditionalCrashOnOverflow::shouldCrashOnOverflow const):
        (WTF::ConditionalCrashOnOverflow::setShouldCrashOnOverflow):
        (WTF::ConditionalCrashOnOverflow::hasOverflowed const):
        (WTF::ConditionalCrashOnOverflow::clearOverflow):
        (WTF::ConditionalCrashOnOverflow::crash):
        (WTF::RecordOverflow::overflowed):
        (WTF::Checked::unsafeGet const):
        * wtf/FastMalloc.cpp:
        (WTF::tryFastRealloc):
        * wtf/FastMalloc.h:
        * wtf/text/StringBuilder.cpp:
        (WTF::expandedCapacity):
        (WTF::StringBuilder::reifyString const):
        (WTF::StringBuilder::resize):
        (WTF::StringBuilder::allocateBuffer):
        (WTF::StringBuilder::allocateBufferUpConvert):
        (WTF::StringBuilder::reallocateBuffer<LChar>):
        (WTF::StringBuilder::reallocateBuffer<UChar>):
        (WTF::StringBuilder::reserveCapacity):
        (WTF::StringBuilder::appendUninitialized):
        (WTF::StringBuilder::appendUninitializedSlow):
        (WTF::StringBuilder::append):
        (WTF::StringBuilder::canShrink const):
        (WTF::StringBuilder::shrinkToFit):
        * wtf/text/StringBuilder.h:
        (WTF::StringBuilder::StringBuilder):
        (WTF::StringBuilder::didOverflow):
        (WTF::StringBuilder::hasOverflowed const):
        (WTF::StringBuilder::crashesOnOverflow const):
        (WTF::StringBuilder::append):
        (WTF::StringBuilder::toString):
        (WTF::StringBuilder::toStringPreserveCapacity const):
        (WTF::StringBuilder::toAtomicString const):
        (WTF::StringBuilder::length const):
        (WTF::StringBuilder::capacity const):
        (WTF::StringBuilder::operator[] const):
        (WTF::StringBuilder::swap):
        (WTF::StringBuilder::getBufferCharacters<UChar>):
        * wtf/text/StringBuilderJSON.cpp:
        (WTF::StringBuilder::appendQuotedJSONString):
        * wtf/text/StringImpl.cpp:
        (WTF::StringImpl::reallocateInternal):
        (WTF::StringImpl::reallocate):
        (WTF::StringImpl::tryReallocate):
        * wtf/text/StringImpl.h:

2018-10-29  Tim Horton  <timothy_horton@apple.com>

        Modernize WebKit nibs and lprojs for localization's sake
        https://bugs.webkit.org/show_bug.cgi?id=190911
        <rdar://problem/45349466>

        Reviewed by Dan Bernstein.

        * WTF.xcodeproj/project.pbxproj:
        English->en

2018-10-29  Tadeu Zagallo  <tzagallo@apple.com>

        New bytecode format for JSC
        https://bugs.webkit.org/show_bug.cgi?id=187373
        <rdar://problem/44186758>

        Reviewed by Filip Pizlo.

        * wtf/Forward.h: Fix WTF_LAZY_FOR_EACH_TERM on MSVC and add WTF_LAZY_HAS_REST to check whether
        a macro was passed multiple arguments
        * wtf/Platform.h: Force ENABLE_JIT=false on all 32-bit platforms
        * wtf/Vector.h:
        (WTF::minCapacity>::insertVector): Allow vectors with different overflow handlers to be passed to insertVector

2018-10-28  Geoffrey Garen  <ggaren@apple.com>

        HashMap should support selecting a random entry
        https://bugs.webkit.org/show_bug.cgi?id=190814

        Reviewed by Ryosuke Niwa.

        * wtf/HashTable.h:
        (WTF::HashTable::random):
        (WTF::HashTable::random const): Merge the empty and deleted checks, and
        use more idiomatic addressing.

2018-10-26  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r237479 and r237484.
        https://bugs.webkit.org/show_bug.cgi?id=190978

        broke JSC on iOS (Requested by tadeuzagallo on #webkit).

        Reverted changesets:

        "New bytecode format for JSC"
        https://bugs.webkit.org/show_bug.cgi?id=187373
        https://trac.webkit.org/changeset/237479

        "Gardening: Build fix after r237479."
        https://bugs.webkit.org/show_bug.cgi?id=187373
        https://trac.webkit.org/changeset/237484

2018-10-26  Tadeu Zagallo  <tzagallo@apple.com>

        New bytecode format for JSC
        https://bugs.webkit.org/show_bug.cgi?id=187373
        <rdar://problem/44186758>

        Reviewed by Filip Pizlo.

        * wtf/Forward.h: Fix WTF_LAZY_FOR_EACH_TERM on MSVC and add WTF_LAZY_HAS_REST to check whether
        a macro was passed multiple arguments
        * wtf/Platform.h: Force ENABLE_JIT=false on all 32-bit platforms
        * wtf/Vector.h:
        (WTF::minCapacity>::insertVector): Allow vectors with different overflow handlers to be passed to insertVector

2018-10-26  Geoffrey Garen  <ggaren@apple.com>

        HashMap should support selecting a random entry
        https://bugs.webkit.org/show_bug.cgi?id=190814

        Reviewed by Antti Koivisto.

        * wtf/HashTable.h:
        (WTF::HashTable::random):
        (WTF::HashTable::random const): Draw a new random bucket any time we
        have a miss, to avoid bias caused by lopsided tables.

2018-10-26  Antti Koivisto  <antti@apple.com>

        hashSet.remove(hashSet.random()) doesn't build
        https://bugs.webkit.org/show_bug.cgi?id=190953

        Reviewed by Chris Dumez.

        * wtf/HashSet.h:

        Remove non-const random(). HashSet only returns const iterators (it is immutable via iterator).

        * wtf/HashTable.h:
        (WTF::HashTable::random const):

        Invoke const_iterator() by using static_cast<> instead of trying to do it directly.

2018-10-26  Alicia Boya García  <aboya@igalia.com>

        [MSE][WTF][Media] Invalid MediaTime should be falsy
        https://bugs.webkit.org/show_bug.cgi?id=190893

        Reviewed by Jer Noble.

        This patch modifies the definition of MediaTime so that invalid times
        are evaluated to false in the context of a boolean expression.

        * wtf/MediaTime.cpp:
        (WTF::MediaTime::operator! const):
        (WTF::MediaTime::operator bool const):

2018-10-26  Keith Miller  <keith_miller@apple.com>

        Some internal projects include wtf headers and build with C++11
        https://bugs.webkit.org/show_bug.cgi?id=190791

        Reviewed by Alexey Proskuryakov.

        C++11 doesn't support constexpr functions that contain
        statements. This patch removes getLSBSet set from builds before
        C++14 to avoid this for now.

        * wtf/MathExtras.h:
        (getLSBSet):

2018-10-25  Ross Kirsling  <ross.kirsling@sony.com>

        Cleanup: inline constexpr is redundant as constexpr implies inline
        https://bugs.webkit.org/show_bug.cgi?id=190819

        Reviewed by Mark Lam.

        * wtf/Bitmap.h:
        (WTF::WordType>::Bitmap):
        * wtf/LEBDecoder.h:
        (WTF::LEBDecoder::maxByteLength):
        * wtf/MathExtras.h:
        (defaultMinimumForClamp):
        (defaultMaximumForClamp):
        (clampToAccepting64):
        (isLessThan):
        (isLessThanEqual):
        (isGreaterThan):
        (isGreaterThanEqual):
        (WTF::roundUpToPowerOfTwo):
        (WTF::maskForSize):
        * wtf/Optional.h:
        * wtf/PtrTag.h:
        (WTF::tagCodePtr):
        (WTF::untagCodePtr):
        (WTF::retagCodePtr):
        (WTF::removeCodePtrTag):
        * wtf/StdLibExtras.h:
        (WTF::roundUpToMultipleOf):
        * wtf/Variant.h:
        (WTF::operator==):
        (WTF::operator!=):
        (WTF::operator>=):
        (WTF::operator<=):
        (WTF::operator>):
        (WTF::operator<):
        * wtf/text/StringImpl.h:
        (WTF::StringImplShape::StringImplShape):
        (WTF::StringImpl::StaticStringImpl::StaticStringImpl):

2018-10-25  Geoffrey Garen  <ggaren@apple.com>

        HashMap should support selecting a random entry
        https://bugs.webkit.org/show_bug.cgi?id=190814

        Reviewed by Antti Koivisto.

        In some cases, remove(begin()) is not quite good enough as a random
        eviction strategy. (See https://bugs.webkit.org/show_bug.cgi?id=190792.)
        So, let's support real random eviction.

        (And by "real" I mean "pseudo".)

        * wtf/HashCountedSet.h:
        * wtf/HashMap.h:
        * wtf/HashSet.h:
        * wtf/ListHashSet.h:
        (WTF::ListHashSet::random):
        (WTF::ListHashSet::random const):
        * wtf/LoggingHashMap.h:
        * wtf/LoggingHashSet.h: Plumb through the random() iterator.

        * wtf/HashTable.h:
        (WTF::HashTable::random):
        (WTF::HashTable::random const): Implement the random() iterator.
        makeIterator() already supports starting from any bucket, so this is
        pretty easy.

        In the subtle case where we select end(), we choose to wrap around and
        return begin(). We expect that clients don't really think of the end()
        bucket as being in the domain of the random search. Also, we don't want
        to annoy clients who know their tables are non-empty with needless
        checks for end().

        * wtf/RandomNumber.cpp:
        (WTF::weakRandomUint32):
        * wtf/RandomNumber.h: Added a free function for weak random numbers so
        that clients that want cheap random numbers aren't required to allocate
        storage for a WeakRandom generator.

2018-10-24  Megan Gardner  <megan_gardner@apple.com>

        Turn on Conic Gradients
        https://bugs.webkit.org/show_bug.cgi?id=190810

        Reviewed by Tim Horton.

        * wtf/FeatureDefines.h:

2018-10-24  Christopher Reid  <chris.reid@sony.com>

        [Win] Add function call name information to stack traces
        https://bugs.webkit.org/show_bug.cgi?id=190761

        Reviewed by Fujii Hironori.

        Add symbol information to stack traces using dbghelp.dll
        This library will use symbols files from these sources:
            - The current working directory
            - The directory containing the application's executable
            - _NT_SYMBOL_PATH environment variable
            - _NT_ALTERNATE_SYMBOL_PATH environment variable

        This functionality is currently only enabled in debug mode since dbghelp is not threadsafe.
        The DbgHelper class attempts to synchronize calls to dbghelp.dll but external code
        can still attempt to call the library at the same time as WebKit.

        * wtf/CMakeLists.txt:
        * wtf/PlatformWin.cmake:
        * wtf/StackTrace.cpp:
        * wtf/win/DbgHelperWin.cpp: Added.
        * wtf/win/DbgHelperWin.h: Added.

2018-10-22  Alexey Proskuryakov  <ap@apple.com>

        Really prevent PLATFORM(IOS) from being used
        https://bugs.webkit.org/show_bug.cgi?id=190813

        Reviewed by Tim Horton.

        * wtf/Platform.h: This relies on -Wundef, which we have enabled.

2018-10-22  Chris Dumez  <cdumez@apple.com>

        Deque's contains() and findIf() should be const
        https://bugs.webkit.org/show_bug.cgi?id=190796

        Reviewed by Antti Koivisto.

        Deque's contains() and findIf() should be const as they do not modify the container.

        * wtf/Deque.h:
        (WTF::inlineCapacity>::findIf):
        (WTF::inlineCapacity>::findIf const):
        (WTF::inlineCapacity>::contains const):
        (WTF::inlineCapacity>::contains): Deleted.

2018-10-18  Alicia Boya García  <aboya@igalia.com>

        [Media] Use nanoseconds as MaximumTimeScale
        https://bugs.webkit.org/show_bug.cgi?id=190631

        1e9 is a much more useful timescale than the previous one 2^31-1.
        Unlike 2^31-1, which is a prime number, nanosecond scale is pretty
        common among some formats like WebM and frameworks like GStreamer
        where base 10 timescale is common... and it's those big timescales the
        ones that are usually scaled up to MaximumTimeScale.

        Reviewed by Jer Noble.

        * wtf/MediaTime.cpp:

2018-10-18  Alexey Proskuryakov  <ap@apple.com>

        Remove PLATFORM(IOS) for now
        https://bugs.webkit.org/show_bug.cgi?id=190737

        Reviewed by Tim Horton.

        * wtf/Platform.h:

2018-10-18  Alexey Proskuryakov  <ap@apple.com>

        Switch from PLATFORM(IOS) to PLATFORM(IOS_FAMILY)
        https://bugs.webkit.org/show_bug.cgi?id=190729

        Reviewed by Tim Horton.

        * wtf/Assertions.h:
        * wtf/FeatureDefines.h:
        * wtf/InlineASM.h:
        * wtf/MemoryPressureHandler.cpp:
        (WTF::thresholdForPolicy):
        * wtf/Platform.h:
        * wtf/cocoa/MemoryPressureHandlerCocoa.mm:
        (WTF::MemoryPressureHandler::install):
        (WTF::MemoryPressureHandler::respondToMemoryPressure):
        * wtf/spi/cocoa/NSMapTableSPI.h:
        * wtf/spi/darwin/XPCSPI.h:
        * wtf/text/StringCommon.h:
        * wtf/text/TextBreakIterator.cpp:
        * wtf/text/TextBreakIterator.h:
        * wtf/unicode/icu/CollatorICU.cpp:
        (WTF::copyDefaultLocale):

2018-10-18  Alex Christensen  <achristensen@webkit.org>

        Clean up FrameLoader two-state enums
        https://bugs.webkit.org/show_bug.cgi?id=190731

        Reviewed by Chris Dumez.

        * wtf/EnumTraits.h:
        (WTF::isValidEnum):

2018-10-17  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r237208.
        https://bugs.webkit.org/show_bug.cgi?id=190691

        Caused the API test that was changed to failure continuously
        (Requested by Truitt on #webkit).

        Reverted changeset:

        "[Media] Use nanoseconds as MaximumTimeScale"
        https://bugs.webkit.org/show_bug.cgi?id=190631
        https://trac.webkit.org/changeset/237208

2018-10-16  Alicia Boya García  <aboya@igalia.com>

        [Media] Use nanoseconds as MaximumTimeScale
        https://bugs.webkit.org/show_bug.cgi?id=190631

        1e9 is a much more useful timescale than the previous one 2^31-1.
        Unlike 2^31-1, which is a prime number, nanosecond scale is pretty
        common among some formats like WebM and frameworks like GStreamer
        where base 10 timescale is common... and it's those big timescales the
        ones that are usually scaled up to MaximumTimeScale.

        Reviewed by Jer Noble.

        * wtf/MediaTime.cpp:

2018-10-15  Keith Miller  <keith_miller@apple.com>

        Support arm64 CPUs with a 32-bit address space
        https://bugs.webkit.org/show_bug.cgi?id=190273

        Reviewed by Michael Saboff.

        Use WTF_CPU_ADDRESS64/32 to decide if the system is running on arm64_32.

        * wtf/MathExtras.h:
        (getLSBSet):
        * wtf/Platform.h:

2018-10-15  Timothy Hatcher  <timothy@apple.com>

        Add support for prefers-color-scheme media query
        https://bugs.webkit.org/show_bug.cgi?id=190499
        rdar://problem/45212025

        Reviewed by Dean Jackson.

        * wtf/FeatureDefines.h: Added ENABLE_DARK_MODE_CSS.

2018-10-15  Saam barati  <sbarati@apple.com>

        Emit fjcvtzs on ARM64E on Darwin
        https://bugs.webkit.org/show_bug.cgi?id=184023

        Reviewed by Yusuke Suzuki and Filip Pizlo.

        * wtf/Platform.h:

2018-10-15  Alex Christensen  <achristensen@webkit.org>

        Use pragma once in WTF
        https://bugs.webkit.org/show_bug.cgi?id=190527

        Reviewed by Chris Dumez.

        We also need to consistently include wtf headers from within wtf so we can build wtf without
        symbol redefinition errors from including the copy in Source and the copy in the build directory.

        * wtf/ASCIICType.h:
        * wtf/Assertions.cpp:
        * wtf/Assertions.h:
        * wtf/Atomics.h:
        * wtf/AutomaticThread.cpp:
        * wtf/AutomaticThread.h:
        * wtf/BackwardsGraph.h:
        * wtf/Bag.h:
        * wtf/BagToHashMap.h:
        * wtf/BitVector.cpp:
        * wtf/BitVector.h:
        * wtf/Bitmap.h:
        * wtf/BloomFilter.h:
        * wtf/Box.h:
        * wtf/BubbleSort.h:
        * wtf/BumpPointerAllocator.h:
        * wtf/ByteOrder.h:
        * wtf/CPUTime.cpp:
        * wtf/CallbackAggregator.h:
        * wtf/CheckedArithmetic.h:
        * wtf/CheckedBoolean.h:
        * wtf/ClockType.cpp:
        * wtf/ClockType.h:
        * wtf/CommaPrinter.h:
        * wtf/CompilationThread.cpp:
        * wtf/CompilationThread.h:
        * wtf/Compiler.h:
        * wtf/ConcurrentPtrHashSet.cpp:
        * wtf/ConcurrentVector.h:
        * wtf/Condition.h:
        * wtf/CountingLock.cpp:
        * wtf/CrossThreadTaskHandler.cpp:
        * wtf/CryptographicUtilities.cpp:
        * wtf/CryptographicUtilities.h:
        * wtf/CryptographicallyRandomNumber.cpp:
        * wtf/CryptographicallyRandomNumber.h:
        * wtf/CurrentTime.cpp:
        * wtf/DataLog.cpp:
        * wtf/DataLog.h:
        * wtf/DateMath.cpp:
        * wtf/DateMath.h:
        * wtf/DecimalNumber.cpp:
        * wtf/DecimalNumber.h:
        * wtf/Deque.h:
        * wtf/DisallowCType.h:
        * wtf/Dominators.h:
        * wtf/DoublyLinkedList.h:
        * wtf/FastBitVector.cpp:
        * wtf/FastMalloc.cpp:
        * wtf/FastMalloc.h:
        * wtf/FeatureDefines.h:
        * wtf/FilePrintStream.cpp:
        * wtf/FilePrintStream.h:
        * wtf/FlipBytes.h:
        * wtf/FunctionDispatcher.cpp:
        * wtf/FunctionDispatcher.h:
        * wtf/GetPtr.h:
        * wtf/Gigacage.cpp:
        * wtf/GlobalVersion.cpp:
        * wtf/GraphNodeWorklist.h:
        * wtf/GregorianDateTime.cpp:
        * wtf/GregorianDateTime.h:
        * wtf/HashFunctions.h:
        * wtf/HashMap.h:
        * wtf/HashMethod.h:
        * wtf/HashSet.h:
        * wtf/HashTable.cpp:
        * wtf/HashTraits.h:
        * wtf/Indenter.h:
        * wtf/IndexSparseSet.h:
        * wtf/InlineASM.h:
        * wtf/Insertion.h:
        * wtf/IteratorAdaptors.h:
        * wtf/IteratorRange.h:
        * wtf/JSONValues.cpp:
        * wtf/JSValueMalloc.cpp:
        * wtf/LEBDecoder.h:
        * wtf/Language.cpp:
        * wtf/ListDump.h:
        * wtf/Lock.cpp:
        * wtf/Lock.h:
        * wtf/LockAlgorithm.h:
        * wtf/LockedPrintStream.cpp:
        * wtf/Locker.h:
        * wtf/MD5.cpp:
        * wtf/MD5.h:
        * wtf/MainThread.cpp:
        * wtf/MainThread.h:
        * wtf/MallocPtr.h:
        * wtf/MathExtras.h:
        * wtf/MediaTime.cpp:
        * wtf/MediaTime.h:
        * wtf/MemoryPressureHandler.cpp:
        * wtf/MessageQueue.h:
        * wtf/MetaAllocator.cpp:
        * wtf/MetaAllocator.h:
        * wtf/MetaAllocatorHandle.h:
        * wtf/MonotonicTime.cpp:
        * wtf/MonotonicTime.h:
        * wtf/NakedPtr.h:
        * wtf/NoLock.h:
        * wtf/NoTailCalls.h:
        * wtf/Noncopyable.h:
        * wtf/NumberOfCores.cpp:
        * wtf/NumberOfCores.h:
        * wtf/OSAllocator.h:
        * wtf/OSAllocatorPosix.cpp:
        * wtf/OSRandomSource.cpp:
        * wtf/OSRandomSource.h:
        * wtf/ObjcRuntimeExtras.h:
        * wtf/OrderMaker.h:
        * wtf/PackedIntVector.h:
        * wtf/PageAllocation.h:
        * wtf/PageBlock.cpp:
        * wtf/PageBlock.h:
        * wtf/PageReservation.h:
        * wtf/ParallelHelperPool.cpp:
        * wtf/ParallelHelperPool.h:
        * wtf/ParallelJobs.h:
        * wtf/ParallelJobsLibdispatch.h:
        * wtf/ParallelVectorIterator.h:
        * wtf/ParkingLot.cpp:
        * wtf/ParkingLot.h:
        * wtf/Platform.h:
        * wtf/PointerComparison.h:
        * wtf/Poisoned.cpp:
        * wtf/PrintStream.cpp:
        * wtf/PrintStream.h:
        * wtf/ProcessID.h:
        * wtf/ProcessPrivilege.cpp:
        * wtf/RAMSize.cpp:
        * wtf/RAMSize.h:
        * wtf/RandomDevice.cpp:
        * wtf/RandomNumber.cpp:
        * wtf/RandomNumber.h:
        * wtf/RandomNumberSeed.h:
        * wtf/RangeSet.h:
        * wtf/RawPointer.h:
        * wtf/ReadWriteLock.cpp:
        * wtf/RedBlackTree.h:
        * wtf/Ref.h:
        * wtf/RefCountedArray.h:
        * wtf/RefCountedLeakCounter.cpp:
        * wtf/RefCountedLeakCounter.h:
        * wtf/RefCounter.h:
        * wtf/RefPtr.h:
        * wtf/RetainPtr.h:
        * wtf/RunLoop.cpp:
        * wtf/RunLoop.h:
        * wtf/RunLoopTimer.h:
        * wtf/RunLoopTimerCF.cpp:
        * wtf/SHA1.cpp:
        * wtf/SHA1.h:
        * wtf/SaturatedArithmetic.h:
        (saturatedSubtraction):
        * wtf/SchedulePair.h:
        * wtf/SchedulePairCF.cpp:
        * wtf/SchedulePairMac.mm:
        * wtf/ScopedLambda.h:
        * wtf/Seconds.cpp:
        * wtf/Seconds.h:
        * wtf/SegmentedVector.h:
        * wtf/SentinelLinkedList.h:
        * wtf/SharedTask.h:
        * wtf/SimpleStats.h:
        * wtf/SingleRootGraph.h:
        * wtf/SinglyLinkedList.h:
        * wtf/SixCharacterHash.cpp:
        * wtf/SixCharacterHash.h:
        * wtf/SmallPtrSet.h:
        * wtf/Spectrum.h:
        * wtf/StackBounds.cpp:
        * wtf/StackBounds.h:
        * wtf/StackStats.cpp:
        * wtf/StackStats.h:
        * wtf/StackTrace.cpp:
        * wtf/StdLibExtras.h:
        * wtf/StreamBuffer.h:
        * wtf/StringHashDumpContext.h:
        * wtf/StringPrintStream.cpp:
        * wtf/StringPrintStream.h:
        * wtf/ThreadGroup.cpp:
        * wtf/ThreadMessage.cpp:
        * wtf/ThreadSpecific.h:
        * wtf/Threading.cpp:
        * wtf/Threading.h:
        * wtf/ThreadingPrimitives.h:
        * wtf/ThreadingPthreads.cpp:
        * wtf/TimeWithDynamicClockType.cpp:
        * wtf/TimeWithDynamicClockType.h:
        * wtf/TimingScope.cpp:
        * wtf/TinyLRUCache.h:
        * wtf/TinyPtrSet.h:
        * wtf/TriState.h:
        * wtf/TypeCasts.h:
        * wtf/UUID.cpp:
        * wtf/UnionFind.h:
        * wtf/VMTags.h:
        * wtf/ValueCheck.h:
        * wtf/Vector.h:
        * wtf/VectorTraits.h:
        * wtf/WallTime.cpp:
        * wtf/WallTime.h:
        * wtf/WeakPtr.h:
        * wtf/WeakRandom.h:
        * wtf/WordLock.cpp:
        * wtf/WordLock.h:
        * wtf/WorkQueue.cpp:
        * wtf/WorkQueue.h:
        * wtf/WorkerPool.cpp:
        * wtf/cf/LanguageCF.cpp:
        * wtf/cf/RunLoopCF.cpp:
        * wtf/cocoa/Entitlements.mm:
        * wtf/cocoa/MachSendRight.cpp:
        * wtf/cocoa/MainThreadCocoa.mm:
        * wtf/cocoa/MemoryFootprintCocoa.cpp:
        * wtf/cocoa/WorkQueueCocoa.cpp:
        * wtf/dtoa.cpp:
        * wtf/dtoa.h:
        * wtf/ios/WebCoreThread.cpp:
        * wtf/ios/WebCoreThread.h:
        * wtf/mac/AppKitCompatibilityDeclarations.h:
        * wtf/mac/DeprecatedSymbolsUsedBySafari.mm:
        * wtf/mbmalloc.cpp:
        * wtf/persistence/PersistentCoders.cpp:
        * wtf/persistence/PersistentDecoder.cpp:
        * wtf/persistence/PersistentEncoder.cpp:
        * wtf/spi/cf/CFBundleSPI.h:
        * wtf/spi/darwin/CommonCryptoSPI.h:
        * wtf/text/ASCIIFastPath.h:
        * wtf/text/ASCIILiteral.cpp:
        * wtf/text/AtomicString.cpp:
        * wtf/text/AtomicString.h:
        * wtf/text/AtomicStringHash.h:
        * wtf/text/AtomicStringImpl.cpp:
        * wtf/text/AtomicStringImpl.h:
        * wtf/text/AtomicStringTable.cpp:
        * wtf/text/AtomicStringTable.h:
        * wtf/text/Base64.cpp:
        * wtf/text/CString.cpp:
        * wtf/text/CString.h:
        * wtf/text/ConversionMode.h:
        * wtf/text/ExternalStringImpl.cpp:
        * wtf/text/IntegerToStringConversion.h:
        * wtf/text/LChar.h:
        * wtf/text/LineEnding.cpp:
        * wtf/text/StringBuffer.h:
        * wtf/text/StringBuilder.cpp:
        * wtf/text/StringBuilder.h:
        * wtf/text/StringBuilderJSON.cpp:
        * wtf/text/StringCommon.h:
        * wtf/text/StringConcatenate.h:
        * wtf/text/StringHash.h:
        * wtf/text/StringImpl.cpp:
        * wtf/text/StringImpl.h:
        * wtf/text/StringOperators.h:
        * wtf/text/StringView.cpp:
        * wtf/text/StringView.h:
        * wtf/text/SymbolImpl.cpp:
        * wtf/text/SymbolRegistry.cpp:
        * wtf/text/SymbolRegistry.h:
        * wtf/text/TextBreakIterator.cpp:
        * wtf/text/TextBreakIterator.h:
        * wtf/text/TextBreakIteratorInternalICU.h:
        * wtf/text/TextPosition.h:
        * wtf/text/TextStream.cpp:
        * wtf/text/UniquedStringImpl.h:
        * wtf/text/WTFString.cpp:
        * wtf/text/WTFString.h:
        * wtf/text/cocoa/StringCocoa.mm:
        * wtf/text/cocoa/StringViewCocoa.mm:
        * wtf/text/cocoa/TextBreakIteratorInternalICUCocoa.cpp:
        * wtf/text/icu/UTextProvider.cpp:
        * wtf/text/icu/UTextProvider.h:
        * wtf/text/icu/UTextProviderLatin1.cpp:
        * wtf/text/icu/UTextProviderLatin1.h:
        * wtf/text/icu/UTextProviderUTF16.cpp:
        * wtf/text/icu/UTextProviderUTF16.h:
        * wtf/threads/BinarySemaphore.cpp:
        * wtf/threads/BinarySemaphore.h:
        * wtf/threads/Signals.cpp:
        * wtf/unicode/CharacterNames.h:
        * wtf/unicode/Collator.h:
        * wtf/unicode/CollatorDefault.cpp:
        * wtf/unicode/UTF8.cpp:
        * wtf/unicode/UTF8.h:

2018-10-12  Alex Christensen  <achristensen@webkit.org>

        Allow encoding of small enum classes
        https://bugs.webkit.org/show_bug.cgi?id=190531

        Reviewed by Tim Horton.

        * wtf/Forward.h:

2018-10-11  Alexey Proskuryakov  <ap@apple.com>

        Add PLATFORM(IOS_FAMILY) and OS(IOS_FAMILY)
        https://bugs.webkit.org/show_bug.cgi?id=190477

        Reviewed by Tim Horton.

        Currently, PLATFORM(IOS) and OS(IOS) are true when building for any
        TARGET_OS_IPHONE target, which is quite confusing. Add a better named alternative,
        as a first step towards mass replacing PLATFORM(IOS). Can't so it all at once
        because of dependencies in other source repositories.

        * wtf/Platform.h: Changed to the new name in this file though. Kept a few
        instances that actually target iOS only, having a version check.

2018-10-11  Yusuke Suzuki  <yusukesuzuki@slowstart.org>

        Use currentStackPointer more
        https://bugs.webkit.org/show_bug.cgi?id=190503

        Reviewed by Saam Barati.

        Use WTF::currentStackPointer more in WebKit to adopt ASAN detect_stack_use_after_return option.

        * wtf/StackBounds.cpp:
        (WTF::testStackDirection2):
        (WTF::testStackDirection):
        * wtf/ThreadingPthreads.cpp:
        (WTF::Thread::signalHandlerSuspendResume):
        (WTF::getApproximateStackPointer): Deleted.

2018-10-11  Ross Kirsling  <ross.kirsling@sony.com>

        [WTF] Semaphore.h conflicts with POSIX header
        https://bugs.webkit.org/show_bug.cgi?id=190486

        Reviewed by Yusuke Suzuki.

        Rename Semaphore.h to WTFSemaphore.h to avoid conflict with POSIX semaphore.h on case-insensitive file systems.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/WTFSemaphore.h: Renamed from wtf/Semaphore.h.

2018-10-10  Mark Lam  <mark.lam@apple.com>

        Changes towards allowing use of the ASAN detect_stack_use_after_return option.
        https://bugs.webkit.org/show_bug.cgi?id=190405
        <rdar://problem/45131464>

        Reviewed by Michael Saboff.

        Introduce WTF::currentStackPointer() which computes its caller's stack pointer value.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/StackBounds.h:
        (WTF::StackBounds::checkConsistency const):
        * wtf/StackPointer.cpp: Added.
        (WTF::currentStackPointer):
        * wtf/StackPointer.h: Added.

2018-10-09  Mark Lam  <mark.lam@apple.com>

        StringTypeAdapter constructor is not properly enforcing String::MaxLength.
        https://bugs.webkit.org/show_bug.cgi?id=190392
        <rdar://problem/45116210>

        Reviewed by Saam Barati.

        Previously, the StringTypeAdapter constructor for a UChar* string was summing the
        unsigned length of the source string without an overflow check.  We now make that
        length a size_t which removes this issue, and assert that it's within
        String::MaxLength thereafter.

        Also made the StringTypeAdapter constructor for a LChar* string behave in an
        equivalent manner for consistency.  In both cases, we'll crash in a RELEASE_ASSERT
        if the source string length exceeds String::MaxLength.

        * wtf/text/StringConcatenate.h:

2018-10-09  Mark Lam  <mark.lam@apple.com>

        Revert temporary asserts for debugging a mysterious ASAN bot crash.
        https://bugs.webkit.org/show_bug.cgi?id=190396

        Reviewed by Yusuke Suzuki.

        * wtf/StackBounds.cpp:
        (WTF::StackBounds::newThreadStackBounds):
        * wtf/StackBounds.h:
        (WTF::StackBounds::checkConsistency const):

2018-10-08  Aditya Keerthi  <akeerthi@apple.com>

        Make <input type=color> a runtime enabled (on-by-default) feature
        https://bugs.webkit.org/show_bug.cgi?id=189162

        Reviewed by Wenson Hsieh and Tim Horton.

        * wtf/FeatureDefines.h:

2018-10-06  Mark Lam  <mark.lam@apple.com>

        Adding some temporary asserts with data logging to debug a mysterious ASAN bot crash.
        https://bugs.webkit.org/show_bug.cgi?id=190334
        <rdar://problem/45071303>

        Reviewed by Yusuke Suzuki.

        These assertions are needed because we can't reproduce the issue locally.
        We'll remove these asserts after the needed data has been collected from the bot.

        * wtf/StackBounds.cpp:
        (WTF::StackBounds::newThreadStackBounds):
        * wtf/StackBounds.h:
        (WTF::StackBounds::checkConsistency const):

2018-10-07  Yusuke Suzuki  <yusukesuzuki@slowstart.org>

        Name Heap threads
        https://bugs.webkit.org/show_bug.cgi?id=190337

        Reviewed by Mark Lam.

        Add a functionality naming threads of ParallelHelperPool.

        * wtf/ParallelHelperPool.cpp:
        (WTF::ParallelHelperPool::ParallelHelperPool):
        * wtf/ParallelHelperPool.h:

2018-10-06  Mark Lam  <mark.lam@apple.com>

        Adding some temporary asserts to debug a mysterious ASAN bot crash.
        https://bugs.webkit.org/show_bug.cgi?id=190331

        Reviewed by Filip Pizlo.

        These assertions are needed because we can't reproduce the issue locally.
        We'll remove these asserts after the needed data has been collected from the bot.

        * wtf/StackBounds.h:
        (WTF::StackBounds::checkConsistency const):

2018-10-05  Yusuke Suzuki  <yusukesuzuki@slowstart.org>

        [JSC][Linux] Support Perf JITDump logging
        https://bugs.webkit.org/show_bug.cgi?id=189893

        Reviewed by Mark Lam.

        * wtf/PageReservation.h:
        (WTF::PageReservation::reserveAndCommitWithGuardPages):

2018-10-03  Dan Bernstein  <mitz@apple.com>

        WTF part of [Xcode] Update some build settings as recommended by Xcode 10
        https://bugs.webkit.org/show_bug.cgi?id=190250

        Reviewed by Alex Christensen.

        * Configurations/Base.xcconfig: Enabled CLANG_WARN_COMMA, CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS,
          and CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF.

        * WTF.xcodeproj/project.pbxproj: Let Xcode update LastUpgradeCheck.

        * wtf/MathExtras.h:
        (WTF::fastLog2): Addressed newly-enabled CLANG_WARN_COMMA by splitting some comma-separated
          expressions into individual statements.

2018-10-03  Mark Lam  <mark.lam@apple.com>

        Make string MaxLength for all WTF and JS strings consistently equal to INT_MAX.
        https://bugs.webkit.org/show_bug.cgi?id=190187
        <rdar://problem/42512909>

        Reviewed by Michael Saboff.

        * wtf/text/StringConcatenate.h:
        (WTF::tryMakeStringFromAdapters):
        (WTF::sumWithOverflow): Deleted.
        * wtf/text/StringImpl.h:
        * wtf/text/WTFString.h:

2018-10-03  Michael Catanzaro  <mcatanzaro@igalia.com>

        -Wunused-variable in RenderLayer::updateScrollableAreaSet
        https://bugs.webkit.org/show_bug.cgi?id=190200

        Reviewed by Yusuke Suzuki.

        Add a new UNUSED_VARIABLE() macro. It's the same as UNUSED_PARAM(), just named differently.

        * wtf/Compiler.h:

2018-10-01  Dean Jackson  <dino@apple.com>

        [macOS] Switching to discrete GPU should be done in the UI process
        https://bugs.webkit.org/show_bug.cgi?id=189361
        <rdar://problem/43949622>

        Reviewed by Simon Fraser.

        Define GL_SILENCE_DEPRECATION to avoid deprecation warnings for OpenGL.

        * wtf/Platform.h:

2018-10-02  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r236624 and r236671.
        https://bugs.webkit.org/show_bug.cgi?id=190207

        The change in r236624 introduced crashes on the bots
        (Requested by ryanhaddad on #webkit).

        Reverted changesets:

        "Refactoring: eliminate raw pointer usage in Fullscreen code"
        https://bugs.webkit.org/show_bug.cgi?id=188747
        https://trac.webkit.org/changeset/236624

        "Unify implementation in VideoFullscreenInterfaceAVKit"
        https://bugs.webkit.org/show_bug.cgi?id=190091
        https://trac.webkit.org/changeset/236671

2018-10-02  Caio Lima  <ticaiolima@gmail.com>

        [BigInt] BigInt.proptotype.toString is broken when radix is power of 2
        https://bugs.webkit.org/show_bug.cgi?id=190033

        Reviewed by Yusuke Suzuki.

        * wtf/MathExtras.h:
        (WTF::ctz32):

2018-10-01  Andy Estes  <aestes@apple.com>

        [watchOS] Adopt NSURLSessionCompanionProxyPreference
        https://bugs.webkit.org/show_bug.cgi?id=190177
        <rdar://problem/43402114>

        Reviewed by Wenson Hsieh.

        * wtf/FeatureDefines.h:

2018-10-01  Koby Boyango  <koby.b@mce-sys.com>

        [WTF][JSCONLY] Use MainThreadWin on Windows in the JSCOnly port
        https://bugs.webkit.org/show_bug.cgi?id=190121

        Reviewed by Yusuke Suzuki.

        This fixes JSCOnly build on Windows after r236617.

        * wtf/PlatformJSCOnly.cmake:

2018-10-01  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r236647.
        https://bugs.webkit.org/show_bug.cgi?id=190124

        Breaking test stress/big-int-to-string.js (Requested by
        caiolima_ on #webkit).

        Reverted changeset:

        "[BigInt] BigInt.proptotype.toString is broken when radix is
        power of 2"
        https://bugs.webkit.org/show_bug.cgi?id=190033
        https://trac.webkit.org/changeset/236647

2018-09-30  Caio Lima  <ticaiolima@gmail.com>

        [BigInt] BigInt.proptotype.toString is broken when radix is power of 2
        https://bugs.webkit.org/show_bug.cgi?id=190033

        Reviewed by Yusuke Suzuki.

        * wtf/MathExtras.h:
        (WTF::ctz32):

2018-09-28  Jer Noble  <jer.noble@apple.com>

        Refactoring: eliminate raw pointer usage in Fullscreen code
        https://bugs.webkit.org/show_bug.cgi?id=188747
        <rdar://problem/43541164>

        Reviewed by Alex Christensen.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/WeakPtrContainer.h: Added.

2018-09-28  Yusuke Suzuki  <yusukesuzuki@slowstart.org>

        [WTF] Make isMainThread more reliable
        https://bugs.webkit.org/show_bug.cgi?id=189880

        Reviewed by Mark Lam.

        isMainThread() relied on Thread::current(). This API becomes broken in Windows
        when the Thread is about to be destroyed since TLS is already cleared. This causes
        a bug since `isMainThread()` is called in Thread::didExit in Windows.

        This patch makes this `isMainThread` more reliable in all the platforms. In Windows,
        we use `Thread::currentID()` instead of `Thread::current()` since `Thread::currentID`
        uses Win32 GetCurrentThreadId directly. In the other system, we use `pthread_main_np`
        or `pthread_self` instead.

        We also move `holdLock` code inside `if (shouldRemoveThreadFromThreadGroup())`. If
        the other thread takes a mutex and destroyed, this `holdLock` waits forever. This problem
        only happens in Windows since Windows calls TLS destructor for the main thread.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/MainThread.cpp:
        (WTF::initializeMainThread):
        (): Deleted.
        (WTF::isMainThread): Deleted.
        (WTF::isMainThreadIfInitialized): Deleted.
        * wtf/Platform.h:
        * wtf/PlatformMac.cmake:
        * wtf/Threading.cpp:
        (WTF::Thread::didExit):
        * wtf/cocoa/MainThreadCocoa.mm: Renamed from Source/WTF/wtf/mac/MainThreadMac.mm.
        * wtf/generic/MainThreadGeneric.cpp:
        (WTF::initializeMainThreadPlatform):
        (WTF::isMainThread):
        (WTF::isMainThreadIfInitialized):
        * wtf/win/MainThreadWin.cpp:
        (WTF::initializeMainThreadPlatform):
        (WTF::isMainThread):
        (WTF::isMainThreadIfInitialized):

2018-09-28  Commit Queue  <commit-queue@webkit.org>

        Unreviewed, rolling out r236605.
        https://bugs.webkit.org/show_bug.cgi?id=190087

        caused three API test timeouts (Requested by jernoble on
        #webkit).

        Reverted changeset:

        "Refactoring: eliminate raw pointer usage in Fullscreen code"
        https://bugs.webkit.org/show_bug.cgi?id=188747
        https://trac.webkit.org/changeset/236605

2018-09-28  Brian Burg  <bburg@apple.com>

        Replace recently added line comments in Compiler.h
        https://bugs.webkit.org/show_bug.cgi?id=190062
        <rdar://problem/44838618>

        Reviewed by Joseph Pecoraro.

        This breaks some Apple-internal tooling. For now, work around it by
        changing the comment style. On the other side, the issue will be fixed
        more permanently by adopting the approach from r230213.

        * wtf/Compiler.h: Use multiline comments.

2018-09-28  Jer Noble  <jer.noble@apple.com>

        Refactoring: eliminate raw pointer usage in Fullscreen code
        https://bugs.webkit.org/show_bug.cgi?id=188747
        <rdar://problem/43541164>

        Reviewed by Alex Christensen.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/WeakPtrContainer.h: Added.

2018-09-28  Koby Boyango  <koby.b@mce.systems>

        [WTF] Add ExternalStringImpl, a StringImpl for user controlled buffers
        https://bugs.webkit.org/show_bug.cgi?id=189991

        Reviewed by Yusuke Suzuki.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/text/ExternalStringImpl.cpp: Added.
        * wtf/text/ExternalStringImpl.h: Added.
        * wtf/text/StringImpl.cpp:
        * wtf/text/StringImpl.h:

2018-09-27  Saam barati  <sbarati@apple.com>

        Verify the contents of AssemblerBuffer on arm64e
        https://bugs.webkit.org/show_bug.cgi?id=190057
        <rdar://problem/38916630>

        Reviewed by Mark Lam.

        * wtf/PtrTag.h:
        (WTF::tagInt):

2018-09-27  Jer Noble  <jer.noble@apple.com>

        MediaPlayer should have mediaPlayerWaitingForKeyChanged() / bool waitingForKey() accessor
        https://bugs.webkit.org/show_bug.cgi?id=189951

        Reviewed by Eric Carlson.

        Templated functions should take r-value references, as they have perfect type deduction for
        all parameter types; references, l-value references, and r-value references in template function
        parameters have special type deduction semantics.
        See: <https://en.cppreference.com/w/cpp/language/reference#Forwarding_references>

        Previously, const reference parameters would be copied when passed into anyOf(), and containers
        of Ref<> would generate compile errors when passed into anyOf, as they cannot be copied. Now,
        with r-value reference types in template parameters, a const reference is mapped to a const reference,
        a non-const reference is mapped to a non-const reference, and a r-value reference is mapped to
        an r-value reference.

        * wtf/Algorithms.h:
        (WTF::forEach):
        (WTF::anyOf):
        (WTF::allOf):

2018-09-25  John Wilander  <wilander@apple.com>

        Change from HAVE(CFNETWORK_STORAGE_PARTITIONING) to ENABLE(RESOURCE_LOAD_STATISTICS)
        https://bugs.webkit.org/show_bug.cgi?id=189959
        <rdar://problem/44767642>

        Reviewed by Chris Dumez.

        * wtf/Platform.h:
            Enables RESOURCE_LOAD_STATISTICS for Cocoa platforms.

2018-09-24  Fujii Hironori  <Hironori.Fujii@sony.com>

        Rename WTF_COMPILER_GCC_OR_CLANG to WTF_COMPILER_GCC_COMPATIBLE
        https://bugs.webkit.org/show_bug.cgi?id=189733

        Reviewed by Michael Catanzaro.

        Clang for Windows build enables WTF_COMPILER_CLANG and
        WTF_COMPILER_MSVC, but disables WTF_COMPILER_GCC_OR_CLANG. It is
        strange WTF_COMPILER_GCC_OR_CLANG is not enabled even though
        WTF_COMPILER_CLANG is enabled. However, Clang for Windows imitates
        MSVC, and codes for COMPILER(GCC_OR_CLANG) are for non MSVC. At
        least at the moment, it is not feasible to define
        WTF_COMPILER_GCC_OR_CLANG for Clang for Windows.

        To solve the issue, this change renames WTF_COMPILER_GCC_OR_CLANG
        to WTF_COMPILER_GCC_COMPATIBLE.

        As an exception, I'd like to use IGNORE_WARNINGS_* macros even in
        Clang for Windows builds.

        * wtf/Assertions.cpp: Replaced COMPILER(GCC_OR_CLANG) with COMPILER(GCC_COMPATIBLE).
        * wtf/Assertions.h: Ditto.
        * wtf/Atomics.h: Ditto.
        * wtf/CheckedArithmetic.h: Ditto.
        * wtf/FastMalloc.h: Ditto.
        * wtf/MathExtras.h: Ditto.
        * wtf/Platform.h: Ditto.
        * wtf/StdLibExtras.h: Ditto.
        * wtf/Vector.h: Ditto.
        * wtf/text/ASCIIFastPath.h: Ditto.
        * wtf/Compiler.h:  Ditto. Replaced "COMPILER(GCC_OR_CLANG)" with "COMPILER(GCC) || COMPILER(CLANG)" of IGNORE_WARNINGS_* macros.

2018-09-21  Yusuke Suzuki  <yusukesuzuki@slowstart.org>

        [JSC] Enable LLInt ASM interpreter on X64 and ARM64 in non JIT configuration
        https://bugs.webkit.org/show_bug.cgi?id=189778

        Reviewed by Keith Miller.

        This patch adds ENABLE(C_LOOP) which indicates we use CLoop as the interpreter.
        Previously, we used !ENABLE(JIT) for this configuration. But now, we have
        a build configuration that has LLInt ASM interpreter (not CLoop) and !ENABLE(JIT).

        We enable LLInt ASM interpreter for non JIT environment in X86_64 and ARM64 architectures.
        And we enable ENABLE(ASSEMBLER) for non JIT environment since it offers machine register
        information which is used for LLInt and SamplingProfiler.

        * wtf/Platform.h:

2018-09-21  Keith Miller  <keith_miller@apple.com>

        Add Promise SPI
        https://bugs.webkit.org/show_bug.cgi?id=189809

        Reviewed by Saam Barati.

        Fix issue where creating a JSContextRef off the main thread before
        creating initializing the main thread would cause an assertion
        failure.

        * wtf/MainThread.cpp:
        (WTF::isMainThreadIfInitialized):
        * wtf/MainThread.h:
        * wtf/mac/MainThreadMac.mm:
        (WTF::isMainThreadIfInitialized):
        * wtf/text/cf/StringImplCF.cpp:
        (WTF::StringImpl::createCFString):

2018-09-21  Ryan Haddad  <ryanhaddad@apple.com>

        Unreviewed, rolling out r236359.

        Broke the Windows build.

        Reverted changeset:

        "Add Promise SPI"
        https://bugs.webkit.org/show_bug.cgi?id=189809
        https://trac.webkit.org/changeset/236359

2018-09-21  Keith Miller  <keith_miller@apple.com>

        Add Promise SPI
        https://bugs.webkit.org/show_bug.cgi?id=189809

        Reviewed by Saam Barati.

        Fix issue where creating a JSContextRef off the main thread before
        creating initializing the main thread would cause an assertion
        failure.

        * wtf/MainThread.cpp:
        (WTF::isMainThreadIfInitialized):
        * wtf/MainThread.h:
        * wtf/mac/MainThreadMac.mm:
        (WTF::isMainThreadIfInitialized):
        * wtf/text/cf/StringImplCF.cpp:
        (WTF::StringImpl::createCFString):

2018-09-20  Fujii Hironori  <Hironori.Fujii@sony.com>

        [Win][Clang] UNUSED_PARAM(this) causes compilation error of "cannot take the address of an rvalue of type"
        https://bugs.webkit.org/show_bug.cgi?id=189732

        Reviewed by Per Arne Vollan.

        Clang for Windows can't compile the MSVC workaround of
        UNUSED_PARAM which has been introduced for Windows CE and Visual
        Studio 10. I think it's safe just to remove it.

        * wtf/Compiler.h: Removed the code for COMPILER(MSVC).

2018-09-20  Alex Christensen  <achristensen@webkit.org>

        Unreviewed, rolling out r235976.

        Broke ARM

        Reverted changeset:

        "Use a Variant instead of a union in CSSSelector"
        https://bugs.webkit.org/show_bug.cgi?id=188559
        https://trac.webkit.org/changeset/235976

2018-09-17  Yusuke Suzuki  <utatane.tea@gmail.com>

        [WTF] Use Semaphore and BinarySemaphore instead of dispatch_semaphore_t
        https://bugs.webkit.org/show_bug.cgi?id=185339

        Reviewed by Mark Lam.

        This patch adds WTF::Semaphore, which is based on WTF::Lock and WTF::Condition.

        * WTF.xcodeproj/project.pbxproj:
        * wtf/CMakeLists.txt:
        * wtf/Semaphore.h: Added.
        (WTF::Semaphore::Semaphore):
        (WTF::Semaphore::signal):
        (WTF::Semaphore::waitUntil):
        (WTF::Semaphore::waitFor):
        (WTF::Semaphore::wait):
        * wtf/generic/WorkQueueGeneric.cpp:
        (WorkQueue::platformInitialize):
        * wtf/threads/BinarySemaphore.cpp:
        (WTF::BinarySemaphore::waitUntil):
        (WTF::BinarySemaphore::wait): Deleted.
        * wtf/threads/BinarySemaphore.h:
        (WTF::BinarySemaphore::waitFor):
        (WTF::BinarySemaphore::wait):
        Align the names of the functions to WTF::Condition.
        Add BinarySemaphore::wait(), which is the same to waitUntil(WallTime::infinity()).

2018-09-17  Jer Noble  <jer.noble@apple.com>

        Add support for HEVC codec types in Media Capabilities
        https://bugs.webkit.org/show_bug.cgi?id=189565

        Reviewed by Eric Carlson.

        Extract the toIntegralType template into its own header.

        * wtf/CMakeLists.txt:
        * wtf/text/StringConversion.h: Added.
        (isCharacterAllowedInBase):
        (toIntegralType):
        * wtf/text/WTFString.cpp:

2018-09-17  Jer Noble  <jer.noble@apple.com>

        Enable USE_MEDIAREMOTE on iOS
        https://bugs.webkit.org/show_bug.cgi?id=189096

        Reviewed by Eric Carlson.

        * wtf/Platform.h:

2018-09-17  Frederic Wang  <fwang@igalia.com>

        Build error in ImageBufferCG when compiled with IOSurfacePool
        https://bugs.webkit.org/show_bug.cgi?id=189579

        Reviewed by Tim Horton.

        IOSurface.h might be included with different value of IOSURFACE_CANVAS_BACKING_STORE, causing
        compilation errors when files in the same unified source do not agree on the definition.
        This patch moves the definition of IOSURFACE_CANVAS_BACKING_STORE from ImageBufferDataCG.h
        to Platform.h so that IOSURFACE_CANVAS_BACKING_STORE is set to the same value in all files.
        Finally some minors changes to explicitly declare/define ImageBuffer are performed in order
        to prevent future issues with Unified build rotating.

        * wtf/Platform.h: Move definition from ImageBufferDataCG.h.

2018-09-14  Ryan Haddad  <ryanhaddad@apple.com>

        Unreviewed, rolling out r235990.

        Introduced TestWebKitAPI.NowPlayingTest timeouts on iOS

        Reverted changeset:

        "Enable USE_MEDIAREMOTE on iOS"
        https://bugs.webkit.org/show_bug.cgi?id=189096
        https://trac.webkit.org/changeset/235990

2018-09-13  Jer Noble  <jer.noble@apple.com>

        Enable USE_MEDIAREMOTE on iOS
        https://bugs.webkit.org/show_bug.cgi?id=189096

        Reviewed by Eric Carlson.

        * wtf/Platform.h:

2018-09-13  Alex Christensen  <achristensen@webkit.org>

        Use a Variant instead of a union in CSSSelector
        https://bugs.webkit.org/show_bug.cgi?id=188559

        Reviewed by Antti Koivisto.

        * wtf/Variant.h:
        Add packing macros to make it so Variant-containing structures don't always have 7 bytes of padding per Variant.

2018-09-12  Guillaume Emont  <guijemont@igalia.com>

        Add IGNORE_WARNING_.* macros
        https://bugs.webkit.org/show_bug.cgi?id=188996

        Reviewed by Michael Catanzaro.

        * wtf/Assertions.cpp:
        * wtf/Assertions.h:
        * wtf/Compiler.h:
        * wtf/MD5.cpp:
        (WTF::MD5::MD5):
        (WTF::MD5::addBytes):
        (WTF::MD5::checksum):
        * wtf/PrintStream.cpp:
        (WTF::PrintStream::printfVariableFormat):
        * wtf/SHA1.cpp:
        (WTF::SHA1::SHA1):
        (WTF::SHA1::addBytes):
        (WTF::SHA1::computeHash):
        * wtf/ThreadingPthreads.cpp:
        * wtf/Vector.h:
        (WTF::VectorBuffer::endOfBuffer):
        * wtf/text/WTFString.cpp:
        (WTF::createWithFormatAndArguments):

== Rolled over to ChangeLog-2018-09-11 ==