[Animation Worklet] Upstream web tests (related to animator) to WPT

Test for animator-registration was purposefully left out of this group because it will be a more involved change


web_tests/animations/animationworklet/animator-animate.html -> web_tests/external/wpt/animation-worklet/animator-animate.https.html

web_tests/animations/animationworklet/animator-with-options.html -> web_tests/external/wpt/animation-worklet/animator-with-options.https.html

Bug: 915352
Change-Id: I3ccab26ec2134a2d02df9fc9ae4e42dd997264ea
Reviewed-on: https://chromium-review.googlesource.com/c/1468008
Commit-Queue: Jordan Taylor <jortaylo@microsoft.com>
Reviewed-by: Yi Gu <yigu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#631489}
6 files changed