Implement EXT_provoking_vertex draft extension

[lexaknyazev]

862fe9c

Implement EXT_provoking_vertex draft extension
https://bugs.webkit.org/show_bug.cgi?id=244363

Reviewed by Kimmo Kinnunen.

* LayoutTests/TestExpectations:
* LayoutTests/platform/gtk/TestExpectations:
* LayoutTests/platform/ios-simulator/webgl/webgl-draft-extensions-flag-default-expected.txt:
* LayoutTests/platform/ios-simulator/webgl/webgl-draft-extensions-flag-off-expected.txt:
* LayoutTests/platform/ios-simulator/webgl/webgl-draft-extensions-flag-on-expected.txt:
* LayoutTests/webgl/resources/webgl-draft-extensions-flag.js:
* LayoutTests/webgl/webgl-draft-extensions-flag-default-expected.txt:
* LayoutTests/webgl/webgl-draft-extensions-flag-off-expected.txt:
* LayoutTests/webgl/webgl-draft-extensions-flag-on-expected.txt:
* Source/WebCore/CMakeLists.txt:
* Source/WebCore/DerivedSources-input.xcfilelist:
* Source/WebCore/DerivedSources-output.xcfilelist:
* Source/WebCore/DerivedSources.make:
* Source/WebCore/Sources.txt:
* Source/WebCore/WebCore.xcodeproj/project.pbxproj:
* Source/WebCore/bindings/js/JSDOMConvertWebGL.cpp:
(WebCore::convertToJSValue):
* Source/WebCore/html/canvas/EXTProvokingVertex.cpp: Added.
(WebCore::EXTProvokingVertex::EXTProvokingVertex):
(WebCore::EXTProvokingVertex::getName const):
(WebCore::EXTProvokingVertex::supported):
(WebCore::EXTProvokingVertex::provokingVertexEXT):
* Source/WebCore/html/canvas/EXTProvokingVertex.h: Added.
* Source/WebCore/html/canvas/EXTProvokingVertex.idl: Added.
* Source/WebCore/html/canvas/WebGL2RenderingContext.cpp:
(WebCore::WebGL2RenderingContext::getExtension):
(WebCore::WebGL2RenderingContext::getSupportedExtensions):
(WebCore::WebGL2RenderingContext::getParameter):
* Source/WebCore/html/canvas/WebGLExtension.h:
* Source/WebCore/html/canvas/WebGLRenderingContextBase.cpp:
(WebCore::WebGLRenderingContextBase::extensionIsEnabled):
(WebCore::WebGLRenderingContextBase::loseExtensions):
* Source/WebCore/html/canvas/WebGLRenderingContextBase.h:
* Source/WebCore/platform/graphics/GraphicsContextGL.h:
* Source/WebCore/platform/graphics/angle/GraphicsContextGLANGLE.cpp:
(WebCore::GraphicsContextGLANGLE::provokingVertexANGLE):
* Source/WebCore/platform/graphics/angle/GraphicsContextGLANGLE.h:
* Source/WebKit/GPUProcess/graphics/RemoteGraphicsContextGL.messages.in:
* Source/WebKit/GPUProcess/graphics/RemoteGraphicsContextGLFunctionsGenerated.h:
(provokingVertexANGLE):
* Source/WebKit/WebProcess/GPU/graphics/RemoteGraphicsContextGLProxy.h:
* Source/WebKit/WebProcess/GPU/graphics/RemoteGraphicsContextGLProxyFunctionsGenerated.cpp:
(WebKit::RemoteGraphicsContextGLProxy::provokingVertexANGLE):

Canonical link: https://commits.webkit.org/255261@main

76f4d4f

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 🧪 win
✅ 🧪 bindings	✅ 🛠 ios-sim	✅ 🛠 mac-debug	✅ 🛠 gtk	✅ 🛠 wincairo
✅ 🧪 webkitperl	🧪 ios-wk2	✅ 🛠 mac-AS-debug	✅ 🧪 gtk-wk2
	✅ 🧪 api-ios	🧪 api-mac	❌ 🧪 api-gtk
	✅ 🛠 tv	✅ 🧪 mac-wk1
	✅ 🛠 tv-sim	✅ 🧪 mac-wk2
❌ 🛠 🧪 merge	✅ 🛠 watch	❌ 🧪 mac-AS-debug-wk2
	✅ 🛠 watch-sim	✅ 🧪 mac-wk2-stress

[webkit-early-warning-system]

EWS run on previous version of this PR (hash 597c1a6)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 🧪 win
✅ 🧪 bindings	✅ 🛠 ios-sim	✅ 🛠 mac-debug	✅ 🛠 gtk	✅ 🛠 wincairo
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🛠 mac-AS-debug	✅ 🧪 gtk-wk2
	✅ 🧪 api-ios	✅ 🧪 api-mac	✅ 🧪 api-gtk
	✅ 🛠 tv	✅ 🧪 mac-wk1
	✅ 🛠 tv-sim	✅ 🧪 mac-wk2
	✅ 🛠 watch	✅ 🧪 mac-AS-debug-wk2
	✅ 🛠 watch-sim	✅ 🧪 mac-wk2-stress

[kkinnunen-apple]

Nice, looks good. Let's land only after we have the test in the tree.

[lexaknyazev]

Let's land only after we have the test in the tree.

Since it's a draft extension, the test may have no effect because of https://bugs.webkit.org/show_bug.cgi?id=242053.

[webkit-early-warning-system]

EWS run on previous version of this PR (hash 0d09020)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	❌ 🛠 🧪 win
✅ 🧪 bindings	✅ 🛠 ios-sim	⏳ 🛠 mac-debug	✅ 🛠 gtk	⏳ 🛠 wincairo
✅ 🧪 webkitperl	🧪 ios-wk2	⏳ 🛠 mac-AS-debug	❌ 🧪 gtk-wk2
	✅ 🧪 api-ios	🧪 api-mac	🧪 api-gtk
	✅ 🛠 tv	🧪 mac-wk1
	✅ 🛠 tv-sim	🧪 mac-wk2
	✅ 🛠 watch	⏳ 🧪 mac-AS-debug-wk2
	✅ 🛠 watch-sim	✅ 🧪 mac-wk2-stress

[webkit-early-warning-system]

EWS run on current version of this PR (hash 76f4d4f)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 🧪 win
✅ 🧪 bindings	✅ 🛠 ios-sim	✅ 🛠 mac-debug	✅ 🛠 gtk	✅ 🛠 wincairo
✅ 🧪 webkitperl	🧪 ios-wk2	✅ 🛠 mac-AS-debug	✅ 🧪 gtk-wk2
	✅ 🧪 api-ios	🧪 api-mac	❌ 🧪 api-gtk
	✅ 🛠 tv	✅ 🧪 mac-wk1
	✅ 🛠 tv-sim	✅ 🧪 mac-wk2
❌ 🛠 🧪 merge	✅ 🛠 watch	❌ 🧪 mac-AS-debug-wk2
	✅ 🛠 watch-sim	✅ 🧪 mac-wk2-stress

[webkit-commit-queue]

Committed 255261@main (862fe9c): https://commits.webkit.org/255261@main

Reviewed commits have been landed. Closing PR #3701 and removing active labels.