873a1e67aa
Automatic update from web-platform-tests IntersectionObserver -- properly handle "unknown" occlusion state If we most recently reported a target as "guaranteed visible", then in the interest of avoiding false positives we must transition to "not guaranteed visible" if the frame occlusion state becomes "unknown". This CL also makes a child frame inherit its parent's "not visible" occlusion state rather than calling it "unknown", which is technically more correct. Bug: chromium:371247941 Change-Id: I4d721dd252d013deac14a12f1f2922830ef2a8a4 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5950965 Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org> Commit-Queue: Stefan Zager <szager@chromium.org> Cr-Commit-Position: refs/heads/main@{#1373093} -- wpt-commits: 0da067c931696835f75630136c9308c721fbaccc wpt-pr: 48794