Add WPTs for FedCM/SAA autogrants (#47728)
Note that the "happy path" case is expected to fail in content_shell,
due to the fact that content_shell uses a fake
PermissionsControllerDelegate in WPTs. Therefore, the autogrants logic
in StorageAccessGrantPermissionContext is bypassed entirely.
Bug: 330574529, 361124438
Change-Id: I0b4e64be89f300e2a9e88c9889b525f39fea9c3f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5800159
Reviewed-by: Christian Biesinger cbiesinger@chromium.org
Commit-Queue: Chris Fredrickson cfredric@chromium.org
Cr-Commit-Position: refs/heads/main@{#1345084}
Co-authored-by: Chris Fredrickson cfredric@chromium.org