Import wpt@504dbb9401e985461bdc3fb534cb26fd5bb9d9ad

Using wpt-import in Chromium faa13c72.
With Chromium commits locally applied on WPT:
a3e84dde "webnn: Remove sync methods"
075c2ea3 "Content-shell support for the SetRPHRegistrationMode webdriver command"
aac36378 "Revert "webnn: Remove sync methods""
12977d15 "Reland "webnn: Remove sync methods""



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

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: Ia52d09912a995ebec09037d0a700bada842160e7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5302444
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Auto-Submit: WPT Autoroller <wpt-autoroller@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1262138}