Implement trusted types integrations with DOM attribute APIs.

[ziransun]

9a38b69

Implement trusted types integrations with DOM attribute APIs.
https://bugs.webkit.org/show_bug.cgi?id=270436

Reviewed by Ryosuke Niwa.

Implement the spec updates at whatwg/dom#1247

It also removes some expectations in GTK as the results should be
in line with the general expectation file.

* LayoutTests/TestExpectations:
* LayoutTests/imported/w3c/web-platform-tests/trusted-types/Element-setAttribute-respects-Elements-node-documents-globals-CSP-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/trusted-types/GlobalEventHandlers-onclick-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/trusted-types/TrustedTypePolicyFactory-metadata.tentative-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/trusted-types/block-string-assignment-to-Element-setAttribute-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/trusted-types/block-string-assignment-to-Element-setAttributeNS-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/trusted-types/trusted-types-event-handlers-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/trusted-types/trusted-types-event-handlers.html:
* LayoutTests/imported/w3c/web-platform-tests/trusted-types/trusted-types-svg-script-set-href-expected.txt:
* LayoutTests/platform/gtk/TestExpectations:
* Source/WebCore/dom/Element.cpp:
(WebCore::trustedTypesCompliantAttributeValue):
(WebCore::Element::validateAttributeIndex const):
(WebCore::Element::toggleAttribute):
(WebCore::Element::setAttribute):
(WebCore::Element::setElementsArrayAttribute):
(WebCore::appendAttributes):
(WebCore::Element::setAttributeNode):
(WebCore::Element::setAttributeNodeNS):
(WebCore::Element::setAttributeNS):
* Source/WebCore/dom/Element.h:
* Source/WebCore/dom/Element.idl:
* Source/WebCore/dom/TrustedScript.h:
* Source/WebCore/dom/TrustedScriptURL.h:
(WebCore::TrustedScriptURL::toString const): Deleted.
(WebCore::TrustedScriptURL::toJSON const): Deleted.
* Source/WebCore/dom/TrustedType.cpp:
(WebCore::stringToTrustedType):
(WebCore::trustedTypeForAttribute):
* Source/WebCore/dom/TrustedType.h:
* Source/WebCore/dom/TrustedTypePolicyFactory.cpp:
(WebCore::TrustedTypePolicyFactory::getAttributeType const):
* Source/WebKit/WebProcess/InjectedBundle/API/mac/WKDOMElement.mm:
(-[WKDOMElement setAttribute:value:]):
* Source/WebKitLegacy/mac/DOM/DOMElement.mm:
(-[DOMElement setAttribute:value:]):
(-[DOMElement setAttributeNS:qualifiedName:value:]):

Canonical link: https://commits.webkit.org/278817@main

04b9b37

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
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	✅ 🧪 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

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✅ 🧪 bindings	❌ 🛠 ios-sim	❌ 🛠 mac-AS-debug	✅ 🧪 wpe-wk2
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	❌ 🛠 tv	❌ 🧪 mac-AS-debug-wk2	✅ 🧪 gtk-wk2
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✅ 🧪 bindings	❌ 🛠 ios-sim	❌ 🛠 mac-AS-debug	✅ 🧪 wpe-wk2
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[lukewarlow]

I think we need to add WEBCORE_EXPORT to TrustedScript and TrustedScriptURL like we have for TrustedHTML, that should fix the build failure.

[lukewarlow]

This index can be stale as getTrustedTypesCompliantAttributeValue can result in JS execution which may mutate the attributes of the element. We need to work out an interopable solution to this.

[ziransun]

As discussed, we will look this at a later stage. The bug is filed at https://bugs.webkit.org/show_bug.cgi?id=272678

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	✅ 🛠 tv-sim	✅ 🧪 mac-wk2-stress	❌ 🧪 api-gtk
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[lukewarlow]

Would be good to try and get rid of the header imports in the Element.h file.

Edit: Done

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	✅ 🛠 tv	✅ 🧪 mac-AS-debug-wk2	✅ 🧪 gtk-wk2
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	✅ 🛠 watch-sim

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✅ 🧪 bindings	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	✅ 🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🧪 api-mac	✅ 🧪 api-wpe
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	✅ 🛠 tv	✅ 🧪 mac-AS-debug-wk2	✅ 🧪 gtk-wk2
	✅ 🛠 tv-sim	✅ 🧪 mac-wk2-stress	✅ 🧪 api-gtk
	✅ 🛠 watch
	✅ 🛠 watch-sim

outdated

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✅ 🧪 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 278817@main (9a38b69): https://commits.webkit.org/278817@main

Reviewed commits have been landed. Closing PR #26519 and removing active labels.