Import wpt@8cb7b15e690ee21590635dca5df152cf08534113

Using wpt-import in Chromium e13b4d47.
With Chromium commits locally applied on WPT:
302c03c0 "[anchor-position] Support logical keywords"
b7c7d294 "[anchor-position] Fix an error in `anchor-position-writing-modes-002.html`"


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:
bokan@chromium.org:
  external/wpt/dom/events/scrolling

NOAUTOREVERT=true

No-Export: true
Cq-Include-Trybots: luci.chromium.try:linux-wpt-identity-fyi-rel,linux-wpt-input-fyi-rel,linux-blink-rel
Change-Id: I13642a3c80a4a822049f9a16bbcef6314a72b6e1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4062909


Auto-Submit: WPT Autoroller <wpt-autoroller@chops-service-accounts.iam.gserviceaccount.com>
Reviewed-by: Weizhong Xia <weizhong@google.com>
Commit-Queue: Weizhong Xia <weizhong@google.com>
Cr-Commit-Position: refs/heads/main@{#1077077}