AX: Incomplete object information with focus event on dynamic created…

[pgorszkowski-igalia]

… div

https://bugs.webkit.org/show_bug.cgi?id=270433

Reviewed by Tyler Wilcock.

When the element is dynamically created and focused, the focus change event should be deferred in case renderer is not available yet but document needs style recalculation.

• Source/WebCore/accessibility/AXObjectCache.cpp: (WebCore::shouldDeferFocusChange): (WebCore::AXObjectCache::onFocusChange):
• Tools/TestWebKitAPI/Tests/WebKitGtk/TestWebKitAccessibility.cpp: (testAccessibleStateChangedFocus): (beforeAll):
• LayoutTests/accessibility/focus-new-element.html: Added.
• LayoutTests/platform/glib/accessibility/focus-new-element-expected.txt: Added.
• LayoutTests/platform/ios-simulator-wk2/accessibility/focus-new-element-expected.txt: Added.
• LayoutTests/platform/mac/accessibility/focus-new-element-expected.txt: Added.

Canonical link: https://commits.webkit.org/275980@main https://github.com/WebPlatformForEmbedded/WPEWebKit/commit/9fb41502895ee7084c65024a7c0333588be82051

Build-Tests	Layout-Tests
✅ 🛠 wpe-amd64-build	✅ 🧪 wpe-amd64-layout
✅ 🛠 wpe-arm32-build	✅ 🧪 wpe-arm32-layout