Import wpt@1cec90d5774800b1b6d36369613d78f125614244

https://github.com/web-platform-tests/wpt/compare/9f10c123a...1cec90d57

Using wpt-import in Chromium 0c8b464d49f98bf02d03faaf4aee8d1ee2a2e73d.
With Chromium commits locally applied on WPT:
  9479ba47fb "Fix only-top-level-navigation-hsts-upgrade test's comment"

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

Directory owners for changes in this CL:
cbiesinger@chromium.org:
  external/wpt/css/css-sizing

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

No-Export: true
Cq-Include-Trybots: luci.chromium.try:linux-blink-rel
Change-Id: I5ac0a4c32dc462da4b652e492609df8486d1cea1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6347016
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@{#1431949}