tree cec23e0ffac9590dfde872e08a94126f999bb2ff
parent 5484d8df43a5a2daba5ca6b372cb5fe05c21a825
author George Steel <gtsteel@chromium.org> 1601935690 -0700
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1601944319 -0700

Add reftests for transform animations

Because composited animations are inaccessible from js, reftests are
necessary to test their behavior. In this set, the file
transform-interpolation-reftests.js defines the tests themselves and
several wrapper html files each run a subset of them (this structure
is due to the lack of support for test variants in reftests).

As these tests are specifically meant for testing compositor animations,
add css-transforms to the virtual/threaded suite to test with threaded
compositing. As this has found several errors, bugs have been filed and
linked to the threaded cases in TestExpectations

Bug: 1131196, 1133901, 1131252
Change-Id: I9c6d92727e52a3ec11fe56f3375fc352baeadf04
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2443209
Reviewed-by: Kevin Ellis <kevers@chromium.org>
Commit-Queue: George Steel <gtsteel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#813921}