Sync WPT with upstream (03-08-2025) (#38434)

Automated downstream sync of changes from upstream as of 03-08-2025
[no-wpt-sync]

Signed-off-by: WPT Sync Bot <ghbot+wpt-sync@servo.org>
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Servo WPT Sync 2025-08-03 03:48:15 +02:00 committed by GitHub
parent 76e5758ab9
commit fed1953198
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686 changed files with 11311 additions and 5508 deletions

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@ -4,3 +4,15 @@
[offsetParent must find the first offset parent which is a shadow-including ancestor of the context object even some shadow tree of closed mode did not have any offset parent]
expected: FAIL
[offsetParent must return the fixed position containing block of a fixed element when the context object is assigned to a slot within a fixed containing block in shadow tree of open mode]
expected: FAIL
[offsetParent must return the fixed position containing block of a fixed element when the context object is assigned to a slot within a fixed containing block in shadow tree of closed mode]
expected: FAIL
[offsetParent must return null when the context object is assigned to a slot without a fixed containing block in shadow tree of open mode]
expected: FAIL
[offsetParent must return null when the context object is assigned to a slot without a fixed containing block in shadow tree of closed mode]
expected: FAIL