Remove compositor keyframe snapshots for paint worklet animations.
This change totally removes compositor keyframe snapshots for composited paint worklet animations. These snapshots are not used for composited animations as their keyframe offsets/timing functions are included in their paint worklet inputs, which deal with the actual interpolating between keyframes. The animation sent to the compositor is a 'dummy' 0->1 linear animation.
This change was already implemented for composited clip paths, but was not done for composited background color. This change fixes that.
Bug: 40883072
Change-Id: I2a8f669f18cf6f8652f5186f8ef6cd145eeb7af0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5690078
Commit-Queue: Claire Chambers clchambers@microsoft.com
Reviewed-by: Kevin Ellis kevers@chromium.org
Cr-Commit-Position: refs/heads/main@{#1356562}