Add support for creating accelerated WebGL contexts in a worker

[mattwoodrow]

cfc4f80

Add support for creating accelerated WebGL contexts in a worker
https://bugs.webkit.org/show_bug.cgi?id=247103

Reviewed by Dean Jackson.

* Source/WebCore/html/canvas/WebGLRenderingContextBase.cpp:
(WebCore::getGraphicsClient):
(WebCore::WebGLRenderingContextBase::create):
(WebCore::WebGLRenderingContextBase::maybeRestoreContext):
* Source/WebCore/platform/GraphicsClient.h:
* Source/WebCore/platform/HostWindow.h:
* Source/WebKit/WebProcess/WebCoreSupport/WebWorkerClient.cpp:
(WebKit::WebWorkerClient::createGraphicsContextGL const):
* Source/WebKit/WebProcess/WebCoreSupport/WebWorkerClient.h:

Canonical link: https://commits.webkit.org/257541@main

c87922b

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

[webkit-early-warning-system]

EWS run on previous version of this PR (hash 6eacb4b)

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 previous version of this PR (hash 5211ec3)

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 previous version of this PR (hash 267ad48)

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
⏳ 🛠 🧪 jsc	🛠 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 9ae44a8)

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
⏳ 🛠 🧪 jsc	⏳ 🛠 tv	⏳ 🧪 mac-wk1
	⏳ 🛠 tv-sim	⏳ 🧪 mac-wk2
	⏳ 🛠 watch	⏳ 🧪 mac-AS-debug-wk2
	⏳ 🛠 watch-sim	⏳ 🧪 mac-wk2-stress

[webkit-early-warning-system]

EWS run on previous version of this PR (hash 9ae44a8)

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

[webkit-early-warning-system]

EWS run on current version of this PR (hash c87922b)

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

[webkit-commit-queue]

Committed 257541@main (cfc4f80): https://commits.webkit.org/257541@main

Reviewed commits have been landed. Closing PR #5842 and removing active labels.