merge_pr_24239
It has been decided to monitor only the attributes marked as CrossOrigin instead of every attributes. Updating the tests accordingly. Along the way some improvements. Bug: chromium:1090273 Change-Id: Iecd0bd478ab348f75f3835105db5bdca9edcc39b Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2252339 Commit-Queue: Arthur Sonzogni <[email protected]> Reviewed-by: Pâris Meuleman <[email protected]> Cr-Commit-Position: refs/heads/master@{#780247}