web-platform-tests
[CompositeClipPathAnimations] Ensure fragmented layouts fall back to main thread
Animations on fragmented layouts are defined as not being compositable, however, due to an omission in HasCompositeClipPathAnimation, clip paths would use paint worklet based clip even if they were not compositable.
Because the decision to composite a clip path animation occurs in the pre-paint phase (as it is tied to the decision whether or not to paint with a mask-based clip), an additional variable is needed to determine whether an animation is compositable or not, as the fragmentation of a layout object is not visible from just the layout object before pre paint has finished.
Bug: 1359514 Change-Id: I9d76518f00e3cc50b968ab2b0d67ecfdf6771fb1 Reviewed-on: https://chromium-review.googlesource.com/3846017 WPT-Export-Revision: 5f084116e562882048d110f495204f39797d7ecf
