Import wpt@c16b988b9a5eea9ea5a9fb14ed54e08a59095d0a

https://github.com/web-platform-tests/wpt/compare/d4ae0ac58...c16b988b9

Using wpt-import in Chromium 7fd13225.
With Chromium commits locally applied on WPT:
  29472422 "webnn: Initialize memory allocated for CoreML and [...]
  716e5d1c "Allow anchor attribute to be used on Element, not [...]
  2db74c9f "webnn: Add a BYOB version of readBuffer()"

Note to gardeners: 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

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: I27cae7d325035e5db7f11ba19b7e87dd13ceb6e7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5778040
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@{#1339999}