WebXR should not work from an iFrame unless it is allowed to use the xr-spatial-tracking permissions policy

[achan00]

7b007a8

WebXR should not work from an iFrame unless it is allowed to use the xr-spatial-tracking permissions policy
https://bugs.webkit.org/show_bug.cgi?id=271363
rdar://122963817

Reviewed by Mike Wyrzykowski.

Follow the latest WebXR spec and check whether 'xr-spatial-tracking' is enabled for
the requesting document's origin in WebGLRenderingContextBase::makeXRCompatible and
WebXRSystem::resolveRequestedFeatures.

Added layout tests to verify 'xr-spatial-tracking' permissions policy is checked
properly for xr.isSessionSupported, xr.requestSession, and WebGLRenderingContextBase::makeXRCompatible.
Set up symbolic links to the webxr related scripts from http/wpt/webxr folder so the
pages embedded in the iframes can reference them.

* LayoutTests/http/tests/webxr/resources/resources/test-only-api.js: Added.
* LayoutTests/http/tests/webxr/resources/resources/webxr_test_constants_single_view.js: Added.
* LayoutTests/http/tests/webxr/resources/resources/webxr_util.js: Added.
* LayoutTests/http/tests/webxr/resources/webxr-issessionsupported-test.html: Added.
* LayoutTests/http/tests/webxr/resources/webxr-makexrcompatible-test.html: Added.
* LayoutTests/http/tests/webxr/resources/webxr-requestsession-test.html: Added.
* LayoutTests/http/tests/webxr/webxr-third-party-iframe-issessionsupported-allowed-by-feature-policy-expected.txt: Added.
* LayoutTests/http/tests/webxr/webxr-third-party-iframe-issessionsupported-allowed-by-feature-policy.html: Added.
* LayoutTests/http/tests/webxr/webxr-third-party-iframe-issessionsupported-denied-by-insufficient-feature-policy-expected.txt: Added.
* LayoutTests/http/tests/webxr/webxr-third-party-iframe-issessionsupported-denied-by-insufficient-feature-policy.html: Added.
* LayoutTests/http/tests/webxr/webxr-third-party-iframe-makexrcompatible-allowed-by-feature-policy-expected.txt: Added.
* LayoutTests/http/tests/webxr/webxr-third-party-iframe-makexrcompatible-allowed-by-feature-policy.html: Added.
* LayoutTests/http/tests/webxr/webxr-third-party-iframe-makexrcompatible-denied-by-insufficient-feature-policy-expected.txt: Added.
* LayoutTests/http/tests/webxr/webxr-third-party-iframe-makexrcompatible-denied-by-insufficient-feature-policy.html: Added.
* LayoutTests/http/tests/webxr/webxr-third-party-iframe-requestsession-allowed-by-feature-policy-expected.txt: Added.
* LayoutTests/http/tests/webxr/webxr-third-party-iframe-requestsession-allowed-by-feature-policy.html: Added.
* LayoutTests/http/tests/webxr/webxr-third-party-iframe-requestsession-denied-by-insufficient-feature-policy-expected.txt: Added.
* LayoutTests/http/tests/webxr/webxr-third-party-iframe-requestsession-denied-by-insufficient-feature-policy.html: Added.
* LayoutTests/platform/gtk/TestExpectations:
* LayoutTests/platform/ios/TestExpectations:
* LayoutTests/platform/mac-gpup/TestExpectations:
* LayoutTests/platform/mac/TestExpectations:
Skip http/tests/webxr tests in the same places where we've skipped other webxr layout tests.
* LayoutTests/platform/wpe/TestExpectations:
Filed a new bug on a crash found when calling WebXRSession destructor.
* LayoutTests/platform/wincairo/TestExpectations:
Skip http/tests/webxr tests in the same places where we've skipped other webxr layout tests.
* Source/WebCore/Modules/webxr/WebXRSystem.cpp:
(WebCore::WebXRSystem::isFeaturePermitted const):
(WebCore::WebXRSystem::resolveRequestedFeatures const):
* Source/WebCore/Modules/webxr/WebXRSystem.h:
* Source/WebCore/html/canvas/WebGLRenderingContextBase.cpp:
(WebCore::WebGLRenderingContextBase::makeXRCompatible):

Canonical link: https://commits.webkit.org/277301@main

2559ec2

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

[webkit-early-warning-system]

EWS run on previous version of this PR (hash f23fd7d)

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

[marcoscaceres]

Non-reviewer 👍 from me. Nice one solving for the script duplication!

[webkit-early-warning-system]

EWS run on previous version of this PR (hash 224554e)

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

[webkit-early-warning-system]

EWS run on current version of this PR (hash 2559ec2)

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

[webkit-commit-queue]

Committed 277301@main (7b007a8): https://commits.webkit.org/277301@main

Reviewed commits have been landed. Closing PR #26376 and removing active labels.