blob: a754aad22e026c50cf994fb62b1175b25d5712d3 [file] [log] [blame]
/*
* Copyright (C) 2006 Eric Seidel <eric@webkit.org>
* Copyright (C) 2008-2019 Apple Inc. All rights reserved.
* Copyright (C) Research In Motion Limited 2011. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "EmptyClients.h"
#include "ApplicationCacheStorage.h"
#include "BackForwardClient.h"
#include "CacheStorageProvider.h"
#include "ColorChooser.h"
#include "ContextMenuClient.h"
#include "CookieJar.h"
#include "DOMPasteAccess.h"
#include "DataListSuggestionPicker.h"
#include "DatabaseProvider.h"
#include "DiagnosticLoggingClient.h"
#include "DocumentFragment.h"
#include "DocumentLoader.h"
#include "DragClient.h"
#include "EditorClient.h"
#include "EmptyFrameLoaderClient.h"
#include "FileChooser.h"
#include "FormState.h"
#include "Frame.h"
#include "FrameLoaderClient.h"
#include "FrameNetworkingContext.h"
#include "HTMLFormElement.h"
#include "HistoryItem.h"
#include "InProcessIDBServer.h"
#include "InspectorClient.h"
#include "LibWebRTCProvider.h"
#include "NetworkStorageSession.h"
#include "Page.h"
#include "PageConfiguration.h"
#include "PaymentCoordinatorClient.h"
#include "PluginInfoProvider.h"
#include "ProgressTrackerClient.h"
#include "SecurityOriginData.h"
#include "SocketProvider.h"
#include "StorageArea.h"
#include "StorageNamespace.h"
#include "StorageNamespaceProvider.h"
#include "StorageType.h"
#include "TextCheckerClient.h"
#include "ThreadableWebSocketChannel.h"
#include "UserContentProvider.h"
#include "VisitedLinkStore.h"
#include <JavaScriptCore/HeapInlines.h>
#include <wtf/NeverDestroyed.h>
#if ENABLE(CONTENT_EXTENSIONS)
#include "CompiledContentExtension.h"
#endif
#if USE(QUICK_LOOK)
#include "PreviewLoaderClient.h"
#endif
namespace WebCore {
class UserMessageHandlerDescriptor;
class EmptyBackForwardClient final : public BackForwardClient {
void addItem(Ref<HistoryItem>&&) final { }
void goToItem(HistoryItem&) final { }
RefPtr<HistoryItem> itemAtIndex(int) final { return nullptr; }
unsigned backListCount() const final { return 0; }
unsigned forwardListCount() const final { return 0; }
void close() final { }
};
#if ENABLE(CONTEXT_MENUS)
class EmptyContextMenuClient final : public ContextMenuClient {
void contextMenuDestroyed() final { }
void downloadURL(const URL&) final { }
void searchWithGoogle(const Frame*) final { }
void lookUpInDictionary(Frame*) final { }
bool isSpeaking() final { return false; }
void speak(const String&) final { }
void stopSpeaking() final { }
#if PLATFORM(COCOA)
void searchWithSpotlight() final { }
#endif
#if PLATFORM(GTK)
void insertEmoji(Frame&) final { }
#endif
#if USE(ACCESSIBILITY_CONTEXT_MENUS)
void showContextMenu() final { }
#endif
};
#endif // ENABLE(CONTEXT_MENUS)
class EmptyDatabaseProvider final : public DatabaseProvider {
#if ENABLE(INDEXED_DATABASE)
IDBClient::IDBConnectionToServer& idbConnectionToServerForSession(const PAL::SessionID& sessionID) final
{
static auto& sharedConnection = InProcessIDBServer::create(sessionID).leakRef();
return sharedConnection.connectionToServer();
}
#endif
};
class EmptyDiagnosticLoggingClient final : public DiagnosticLoggingClient {
void logDiagnosticMessage(const String&, const String&, ShouldSample) final { }
void logDiagnosticMessageWithResult(const String&, const String&, DiagnosticLoggingResultType, ShouldSample) final { }
void logDiagnosticMessageWithValue(const String&, const String&, double, unsigned, ShouldSample) final { }
void logDiagnosticMessageWithEnhancedPrivacy(const String&, const String&, ShouldSample) final { }
void logDiagnosticMessageWithValueDictionary(const String&, const String&, const ValueDictionary&, ShouldSample) final { }
};
#if ENABLE(DRAG_SUPPORT)
class EmptyDragClient final : public DragClient {
void willPerformDragDestinationAction(DragDestinationAction, const DragData&) final { }
void willPerformDragSourceAction(DragSourceAction, const IntPoint&, DataTransfer&) final { }
DragSourceAction dragSourceActionMaskForPoint(const IntPoint&) final { return DragSourceActionNone; }
void startDrag(DragItem, DataTransfer&, Frame&) final { }
void dragControllerDestroyed() final { }
};
#endif // ENABLE(DRAG_SUPPORT)
class EmptyEditorClient final : public EditorClient {
WTF_MAKE_FAST_ALLOCATED;
public:
EmptyEditorClient() = default;
private:
bool shouldDeleteRange(Range*) final { return false; }
bool smartInsertDeleteEnabled() final { return false; }
bool isSelectTrailingWhitespaceEnabled() const final { return false; }
bool isContinuousSpellCheckingEnabled() final { return false; }
void toggleContinuousSpellChecking() final { }
bool isGrammarCheckingEnabled() final { return false; }
void toggleGrammarChecking() final { }
int spellCheckerDocumentTag() final { return -1; }
bool shouldBeginEditing(Range*) final { return false; }
bool shouldEndEditing(Range*) final { return false; }
bool shouldInsertNode(Node*, Range*, EditorInsertAction) final { return false; }
bool shouldInsertText(const String&, Range*, EditorInsertAction) final { return false; }
bool shouldChangeSelectedRange(Range*, Range*, EAffinity, bool) final { return false; }
bool shouldApplyStyle(StyleProperties*, Range*) final { return false; }
void didApplyStyle() final { }
bool shouldMoveRangeAfterDelete(Range*, Range*) final { return false; }
void didBeginEditing() final { }
void respondToChangedContents() final { }
void respondToChangedSelection(Frame*) final { }
void updateEditorStateAfterLayoutIfEditabilityChanged() final { }
void discardedComposition(Frame*) final { }
void canceledComposition() final { }
void didUpdateComposition() final { }
void didEndEditing() final { }
void didEndUserTriggeredSelectionChanges() final { }
void willWriteSelectionToPasteboard(Range*) final { }
void didWriteSelectionToPasteboard() final { }
void getClientPasteboardDataForRange(Range*, Vector<String>&, Vector<RefPtr<SharedBuffer>>&) final { }
void requestCandidatesForSelection(const VisibleSelection&) final { }
void handleAcceptedCandidateWithSoftSpaces(TextCheckingResult) final { }
void registerUndoStep(UndoStep&) final;
void registerRedoStep(UndoStep&) final;
void clearUndoRedoOperations() final { }
DOMPasteAccessResponse requestDOMPasteAccess(const String&) final { return DOMPasteAccessResponse::DeniedForGesture; }
bool canCopyCut(Frame*, bool defaultValue) const final { return defaultValue; }
bool canPaste(Frame*, bool defaultValue) const final { return defaultValue; }
bool canUndo() const final { return false; }
bool canRedo() const final { return false; }
void undo() final { }
void redo() final { }
void handleKeyboardEvent(KeyboardEvent&) final { }
void handleInputMethodKeydown(KeyboardEvent&) final { }
void textFieldDidBeginEditing(Element*) final { }
void textFieldDidEndEditing(Element*) final { }
void textDidChangeInTextField(Element*) final { }
bool doTextFieldCommandFromEvent(Element*, KeyboardEvent*) final { return false; }
void textWillBeDeletedInTextField(Element*) final { }
void textDidChangeInTextArea(Element*) final { }
void overflowScrollPositionChanged() final { }
#if PLATFORM(IOS_FAMILY)
void startDelayingAndCoalescingContentChangeNotifications() final { }
void stopDelayingAndCoalescingContentChangeNotifications() final { }
bool hasRichlyEditableSelection() final { return false; }
int getPasteboardItemsCount() final { return 0; }
RefPtr<DocumentFragment> documentFragmentFromDelegate(int) final { return nullptr; }
bool performsTwoStepPaste(DocumentFragment*) final { return false; }
void updateStringForFind(const String&) final { }
#endif
bool performTwoStepDrop(DocumentFragment&, Range&, bool) final { return false; }
#if PLATFORM(COCOA)
void setInsertionPasteboard(const String&) final { };
#endif
#if USE(APPKIT)
void uppercaseWord() final { }
void lowercaseWord() final { }
void capitalizeWord() final { }
#endif
#if USE(AUTOMATIC_TEXT_REPLACEMENT)
void showSubstitutionsPanel(bool) final { }
bool substitutionsPanelIsShowing() final { return false; }
void toggleSmartInsertDelete() final { }
bool isAutomaticQuoteSubstitutionEnabled() final { return false; }
void toggleAutomaticQuoteSubstitution() final { }
bool isAutomaticLinkDetectionEnabled() final { return false; }
void toggleAutomaticLinkDetection() final { }
bool isAutomaticDashSubstitutionEnabled() final { return false; }
void toggleAutomaticDashSubstitution() final { }
bool isAutomaticTextReplacementEnabled() final { return false; }
void toggleAutomaticTextReplacement() final { }
bool isAutomaticSpellingCorrectionEnabled() final { return false; }
void toggleAutomaticSpellingCorrection() final { }
#endif
#if PLATFORM(GTK)
bool shouldShowUnicodeMenu() final { return false; }
#endif
TextCheckerClient* textChecker() final { return &m_textCheckerClient; }
void updateSpellingUIWithGrammarString(const String&, const GrammarDetail&) final { }
void updateSpellingUIWithMisspelledWord(const String&) final { }
void showSpellingUI(bool) final { }
bool spellingUIIsShowing() final { return false; }
void willSetInputMethodState() final { }
void setInputMethodState(bool) final { }
class EmptyTextCheckerClient final : public TextCheckerClient {
bool shouldEraseMarkersAfterChangeSelection(TextCheckingType) const final { return true; }
void ignoreWordInSpellDocument(const String&) final { }
void learnWord(const String&) final { }
void checkSpellingOfString(StringView, int*, int*) final { }
String getAutoCorrectSuggestionForMisspelledWord(const String&) final { return { }; }
void checkGrammarOfString(StringView, Vector<GrammarDetail>&, int*, int*) final { }
#if USE(UNIFIED_TEXT_CHECKING)
Vector<TextCheckingResult> checkTextOfParagraph(StringView, OptionSet<TextCheckingType>, const VisibleSelection&) final { return Vector<TextCheckingResult>(); }
#endif
void getGuessesForWord(const String&, const String&, const VisibleSelection&, Vector<String>&) final { }
void requestCheckingOfString(TextCheckingRequest&, const VisibleSelection&) final;
};
EmptyTextCheckerClient m_textCheckerClient;
};
class EmptyFrameNetworkingContext final : public FrameNetworkingContext {
public:
static Ref<EmptyFrameNetworkingContext> create() { return adoptRef(*new EmptyFrameNetworkingContext); }
private:
EmptyFrameNetworkingContext();
bool shouldClearReferrerOnHTTPSToHTTPRedirect() const { return true; }
NetworkStorageSession* storageSession() const final { return nullptr; }
#if PLATFORM(COCOA)
bool localFileContentSniffingEnabled() const { return false; }
SchedulePairHashSet* scheduledRunLoopPairs() const { return nullptr; }
RetainPtr<CFDataRef> sourceApplicationAuditData() const { return nullptr; };
#endif
#if PLATFORM(COCOA) || PLATFORM(WIN)
ResourceError blockedError(const ResourceRequest&) const final { return { }; }
#endif
};
class EmptyInspectorClient final : public InspectorClient {
void inspectedPageDestroyed() final { }
Inspector::FrontendChannel* openLocalFrontend(InspectorController*) final { return nullptr; }
void bringFrontendToFront() final { }
void highlight() final { }
void hideHighlight() final { }
};
#if ENABLE(APPLE_PAY)
class EmptyPaymentCoordinatorClient final : public PaymentCoordinatorClient {
Optional<String> validatedPaymentNetwork(const String&) final { return WTF::nullopt; }
bool canMakePayments() final { return false; }
void canMakePaymentsWithActiveCard(const String&, const String&, CompletionHandler<void(bool)>&& completionHandler) final { callOnMainThread([completionHandler = WTFMove(completionHandler)]() mutable { completionHandler(false); }); }
void openPaymentSetup(const String&, const String&, CompletionHandler<void(bool)>&& completionHandler) final { callOnMainThread([completionHandler = WTFMove(completionHandler)]() mutable { completionHandler(false); }); }
bool showPaymentUI(const URL&, const Vector<URL>&, const ApplePaySessionPaymentRequest&) final { return false; }
void completeMerchantValidation(const PaymentMerchantSession&) final { }
void completeShippingMethodSelection(Optional<ShippingMethodUpdate>&&) final { }
void completeShippingContactSelection(Optional<ShippingContactUpdate>&&) final { }
void completePaymentMethodSelection(Optional<PaymentMethodUpdate>&&) final { }
void completePaymentSession(Optional<PaymentAuthorizationResult>&&) final { }
void cancelPaymentSession() final { }
void abortPaymentSession() final { }
void paymentCoordinatorDestroyed() final { }
};
#endif
class EmptyPluginInfoProvider final : public PluginInfoProvider {
void refreshPlugins() final { };
Vector<PluginInfo> pluginInfo(Page&, Optional<Vector<SupportedPluginIdentifier>>&) final { return { }; }
Vector<PluginInfo> webVisiblePluginInfo(Page&, const URL&) final { return { }; }
};
class EmptyPopupMenu : public PopupMenu {
public:
EmptyPopupMenu() = default;
private:
void show(const IntRect&, FrameView*, int) final { }
void hide() final { }
void updateFromElement() final { }
void disconnectClient() final { }
};
class EmptyProgressTrackerClient final : public ProgressTrackerClient {
void willChangeEstimatedProgress() final { }
void didChangeEstimatedProgress() final { }
void progressStarted(Frame&) final { }
void progressEstimateChanged(Frame&) final { }
void progressFinished(Frame&) final { }
};
class EmptySearchPopupMenu : public SearchPopupMenu {
public:
EmptySearchPopupMenu()
: m_popup(adoptRef(*new EmptyPopupMenu))
{
}
private:
PopupMenu* popupMenu() final { return m_popup.ptr(); }
void saveRecentSearches(const AtomicString&, const Vector<RecentSearch>&) final { }
void loadRecentSearches(const AtomicString&, Vector<RecentSearch>&) final { }
bool enabled() final { return false; }
Ref<EmptyPopupMenu> m_popup;
};
class EmptyStorageNamespaceProvider final : public StorageNamespaceProvider {
struct EmptyStorageArea : public StorageArea {
unsigned length() final { return 0; }
String key(unsigned) final { return { }; }
String item(const String&) final { return { }; }
void setItem(Frame*, const String&, const String&, bool&) final { }
void removeItem(Frame*, const String&) final { }
void clear(Frame*) final { }
bool contains(const String&) final { return false; }
StorageType storageType() const final { return StorageType::Local; }
size_t memoryBytesUsedByCache() final { return 0; }
const SecurityOriginData& securityOrigin() const final { static NeverDestroyed<SecurityOriginData> origin; return origin.get(); }
};
struct EmptyStorageNamespace final : public StorageNamespace {
Ref<StorageArea> storageArea(const SecurityOriginData&) final { return adoptRef(*new EmptyStorageArea); }
Ref<StorageNamespace> copy(Page*) final { return adoptRef(*new EmptyStorageNamespace); }
};
Ref<StorageNamespace> createSessionStorageNamespace(Page&, unsigned) final;
Ref<StorageNamespace> createLocalStorageNamespace(unsigned) final;
Ref<StorageNamespace> createEphemeralLocalStorageNamespace(Page&, unsigned) final;
Ref<StorageNamespace> createTransientLocalStorageNamespace(SecurityOrigin&, unsigned) final;
};
class EmptyUserContentProvider final : public UserContentProvider {
void forEachUserScript(Function<void(DOMWrapperWorld&, const UserScript&)>&&) const final { }
void forEachUserStyleSheet(Function<void(const UserStyleSheet&)>&&) const final { }
#if ENABLE(USER_MESSAGE_HANDLERS)
void forEachUserMessageHandler(Function<void(const UserMessageHandlerDescriptor&)>&&) const final { }
#endif
#if ENABLE(CONTENT_EXTENSIONS)
ContentExtensions::ContentExtensionsBackend& userContentExtensionBackend() final { static NeverDestroyed<ContentExtensions::ContentExtensionsBackend> backend; return backend.get(); };
#endif
};
class EmptyVisitedLinkStore final : public VisitedLinkStore {
bool isLinkVisited(Page&, SharedStringHash, const URL&, const AtomicString&) final { return false; }
void addVisitedLink(Page&, SharedStringHash) final { }
};
RefPtr<PopupMenu> EmptyChromeClient::createPopupMenu(PopupMenuClient&) const
{
return adoptRef(*new EmptyPopupMenu);
}
RefPtr<SearchPopupMenu> EmptyChromeClient::createSearchPopupMenu(PopupMenuClient&) const
{
return adoptRef(*new EmptySearchPopupMenu);
}
#if ENABLE(INPUT_TYPE_COLOR)
std::unique_ptr<ColorChooser> EmptyChromeClient::createColorChooser(ColorChooserClient&, const Color&)
{
return nullptr;
}
#endif
#if ENABLE(DATALIST_ELEMENT)
std::unique_ptr<DataListSuggestionPicker> EmptyChromeClient::createDataListSuggestionPicker(DataListSuggestionsClient&)
{
return nullptr;
}
#endif
void EmptyChromeClient::runOpenPanel(Frame&, FileChooser&)
{
}
void EmptyChromeClient::showShareSheet(ShareDataWithParsedURL&, CompletionHandler<void(bool)>&&)
{
}
PAL::SessionID EmptyFrameLoaderClient::sessionID() const
{
return PAL::SessionID::defaultSessionID();
}
void EmptyFrameLoaderClient::dispatchDecidePolicyForNewWindowAction(const NavigationAction&, const ResourceRequest&, FormState*, const String&, PolicyCheckIdentifier, FramePolicyFunction&&)
{
}
void EmptyFrameLoaderClient::dispatchDecidePolicyForNavigationAction(const NavigationAction&, const ResourceRequest&, const ResourceResponse&, FormState*, PolicyDecisionMode, PolicyCheckIdentifier, FramePolicyFunction&&)
{
}
void EmptyFrameLoaderClient::dispatchWillSendSubmitEvent(Ref<FormState>&&)
{
}
void EmptyFrameLoaderClient::dispatchWillSubmitForm(FormState&, CompletionHandler<void()>&& completionHandler)
{
completionHandler();
}
Ref<DocumentLoader> EmptyFrameLoaderClient::createDocumentLoader(const ResourceRequest& request, const SubstituteData& substituteData)
{
return DocumentLoader::create(request, substituteData);
}
RefPtr<Frame> EmptyFrameLoaderClient::createFrame(const URL&, const String&, HTMLFrameOwnerElement&, const String&)
{
return nullptr;
}
RefPtr<Widget> EmptyFrameLoaderClient::createPlugin(const IntSize&, HTMLPlugInElement&, const URL&, const Vector<String>&, const Vector<String>&, const String&, bool)
{
return nullptr;
}
RefPtr<Widget> EmptyFrameLoaderClient::createJavaAppletWidget(const IntSize&, HTMLAppletElement&, const URL&, const Vector<String>&, const Vector<String>&)
{
return nullptr;
}
inline EmptyFrameNetworkingContext::EmptyFrameNetworkingContext()
: FrameNetworkingContext { nullptr }
{
}
Ref<FrameNetworkingContext> EmptyFrameLoaderClient::createNetworkingContext()
{
return EmptyFrameNetworkingContext::create();
}
void EmptyEditorClient::EmptyTextCheckerClient::requestCheckingOfString(TextCheckingRequest&, const VisibleSelection&)
{
}
void EmptyEditorClient::registerUndoStep(UndoStep&)
{
}
void EmptyEditorClient::registerRedoStep(UndoStep&)
{
}
Ref<StorageNamespace> EmptyStorageNamespaceProvider::createSessionStorageNamespace(Page&, unsigned)
{
return adoptRef(*new EmptyStorageNamespace);
}
Ref<StorageNamespace> EmptyStorageNamespaceProvider::createLocalStorageNamespace(unsigned)
{
return adoptRef(*new EmptyStorageNamespace);
}
Ref<StorageNamespace> EmptyStorageNamespaceProvider::createEphemeralLocalStorageNamespace(Page&, unsigned)
{
return adoptRef(*new EmptyStorageNamespace);
}
Ref<StorageNamespace> EmptyStorageNamespaceProvider::createTransientLocalStorageNamespace(SecurityOrigin&, unsigned)
{
return adoptRef(*new EmptyStorageNamespace);
}
class EmptyStorageSessionProvider : public StorageSessionProvider {
NetworkStorageSession* storageSession() const final { return nullptr; }
};
PageConfiguration pageConfigurationWithEmptyClients()
{
PageConfiguration pageConfiguration {
makeUniqueRef<EmptyEditorClient>(),
SocketProvider::create(),
LibWebRTCProvider::create(),
CacheStorageProvider::create(),
adoptRef(*new EmptyBackForwardClient),
CookieJar::create(adoptRef(*new EmptyStorageSessionProvider))
};
static NeverDestroyed<EmptyChromeClient> dummyChromeClient;
pageConfiguration.chromeClient = &dummyChromeClient.get();
#if ENABLE(APPLE_PAY)
static NeverDestroyed<EmptyPaymentCoordinatorClient> dummyPaymentCoordinatorClient;
pageConfiguration.paymentCoordinatorClient = &dummyPaymentCoordinatorClient.get();
#endif
#if ENABLE(CONTEXT_MENUS)
static NeverDestroyed<EmptyContextMenuClient> dummyContextMenuClient;
pageConfiguration.contextMenuClient = &dummyContextMenuClient.get();
#endif
#if ENABLE(DRAG_SUPPORT)
static NeverDestroyed<EmptyDragClient> dummyDragClient;
pageConfiguration.dragClient = &dummyDragClient.get();
#endif
static NeverDestroyed<EmptyInspectorClient> dummyInspectorClient;
pageConfiguration.inspectorClient = &dummyInspectorClient.get();
static NeverDestroyed<EmptyFrameLoaderClient> dummyFrameLoaderClient;
pageConfiguration.loaderClientForMainFrame = &dummyFrameLoaderClient.get();
static NeverDestroyed<EmptyProgressTrackerClient> dummyProgressTrackerClient;
pageConfiguration.progressTrackerClient = &dummyProgressTrackerClient.get();
pageConfiguration.diagnosticLoggingClient = std::make_unique<EmptyDiagnosticLoggingClient>();
pageConfiguration.applicationCacheStorage = ApplicationCacheStorage::create({ }, { });
pageConfiguration.databaseProvider = adoptRef(*new EmptyDatabaseProvider);
pageConfiguration.pluginInfoProvider = adoptRef(*new EmptyPluginInfoProvider);
pageConfiguration.storageNamespaceProvider = adoptRef(*new EmptyStorageNamespaceProvider);
pageConfiguration.userContentProvider = adoptRef(*new EmptyUserContentProvider);
pageConfiguration.visitedLinkStore = adoptRef(*new EmptyVisitedLinkStore);
return pageConfiguration;
}
DiagnosticLoggingClient& emptyDiagnosticLoggingClient()
{
static NeverDestroyed<EmptyDiagnosticLoggingClient> client;
return client;
}
}