Use Optional::hasValue() instead of Optional::has_value()
https://bugs.webkit.org/show_bug.cgi?id=192948

Reviewed by Tim Horton.

Source/JavaScriptCore:

* inspector/scripts/codegen/generate_cpp_backend_dispatcher_implementation.py:
(CppBackendDispatcherImplementationGenerator._generate_async_dispatcher_class_for_domain):
(CppBackendDispatcherImplementationGenerator._generate_dispatcher_implementation_for_command):

Source/WebCore:

* bindings/js/DOMPromiseProxy.h:
(WebCore::DOMPromiseProxy<IDLType>::isFulfilled const):
(WebCore::DOMPromiseProxy<IDLVoid>::isFulfilled const):
(WebCore::DOMPromiseProxyWithResolveCallback<IDLType>::isFulfilled const):
* dom/DataTransferItemList.h:
(WebCore::DataTransferItemList::hasItems const):
* dom/EventTarget.cpp:
(WebCore::EventTarget::addEventListener):
* html/HTMLMediaElement.cpp:
(WebCore::HTMLMediaElement::captionDisplayMode):
* platform/graphics/MediaPlayer.cpp:
(WebCore::MediaPlayer::wouldTaintOrigin const):
* platform/graphics/gstreamer/mse/AppendPipeline.cpp:
(WebCore::AppendPipeline::parseDemuxerSrcPadCaps):
* platform/graphics/gstreamer/mse/MediaPlayerPrivateGStreamerMSE.cpp:
(WebCore::MediaPlayerPrivateGStreamerMSE::trackDetected):
* platform/graphics/gstreamer/mse/WebKitMediaSourceGStreamer.cpp:
(webKitMediaSrcUpdatePresentationSize):
* platform/mac/NSScrollerImpDetails.mm:
(WebCore::ScrollerStyle::recommendedScrollerStyle):
* rendering/RenderListItem.cpp:
(WebCore::RenderListItem::setExplicitValue):

Source/WebKit:

* UIProcess/Automation/WebAutomationSession.cpp:
(WebKit::AutomationCommandError::toProtocolString):
(WebKit::WebAutomationSession::willClosePage):
* WebProcess/Automation/WebAutomationSessionProxy.cpp:
(WebKit::WebAutomationSessionProxy::computeElementLayout):

Source/WTF:

* wtf/Hasher.h:
(WTF::add):
* wtf/Optional.h:

Tools:

* TestWebKitAPI/Tests/WebCore/CBORReaderTest.cpp:
(TestWebKitAPI::TEST):
* TestWebKitAPI/Tests/WebCore/CBORWriterTest.cpp:
(TestWebKitAPI::TEST):
* TestWebKitAPI/Tests/WebCore/FileSystem.cpp:
(TestWebKitAPI::TEST_F):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@239477 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/WebCore/dom/DataTransferItemList.h b/Source/WebCore/dom/DataTransferItemList.h
index 9a55b23..b2413b8 100644
--- a/Source/WebCore/dom/DataTransferItemList.h
+++ b/Source/WebCore/dom/DataTransferItemList.h
@@ -65,7 +65,7 @@
 
     void didClearStringData(const String& type);
     void didSetStringData(const String& type);
-    bool hasItems() const { return m_items.has_value(); }
+    bool hasItems() const { return m_items.hasValue(); }
     const Vector<Ref<DataTransferItem>>& items() const
     {
         ASSERT(m_items);