Import wpt@3fcd8c9417f5b1d030f803c5415418c1b7fc5975

Using wpt-import in Chromium 091c06e2.
With Chromium commits locally applied on WPT:
661771ae "URLPattern: Escape pattern baseURL values."


Note to sheriffs: This CL imports external tests and adds
expectations for those tests; if this CL is large and causes
a few new failures, please fix the failures by adding new
lines to TestExpectations rather than reverting. See:
https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md

Directory owners for changes in this CL:
meade@chromium.org:
  external/wpt/web-animations

NOAUTOREVERT=true
R=rubber-stamper@appspot.gserviceaccount.com

No-Export: true
Cq-Include-Trybots: luci.chromium.try:linux-wpt-identity-fyi-rel,linux-wpt-input-fyi-rel,linux-blink-rel
Change-Id: I75e0db709fb7488f1f556a22908a7dc3b3a6d72b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4030926
Auto-Submit: WPT Autoroller <wpt-autoroller@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1072217}