Import wpt@9820252a704761e8487ee98a5d523e7068104e22

Using wpt-import in Chromium bae1802c.
With Chromium commits locally applied on WPT:
6e39e2ba "Port animation-*-event-destroy-renderer to WPT"
b689ea56 "Refactor WPTs to support manual reportEvent beacons."
b5f122f2 "[Invokers] mark clickon tests as long"
8e11871d "Clean up PendingBeaconAPI-related implementation"



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:
pcupp@microsoft.com:
  external/wpt/editing

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

No-Export: true
Validate-Test-Flakiness: skip
Cq-Include-Trybots: luci.chromium.try:linux-blink-rel
Change-Id: Icd85e91cf9b5e1ad22d0f1e4bbf851362844c756
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5388917
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Auto-Submit: WPT Autoroller <wpt-autoroller@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1277304}