EmbeddedPreview:With Video No Poster

Build 6976 on 23-05-JG-fix-video-wrapper
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Baseline History
Build 69769bb3d0e
Current build. There are unaccepted changes, so build 6302 is still the baseline.
Build 6284f35c143
Accepted by Ziwei Liu.
Build 5936be24d0b
Auto-accepted
Build 2970753d077
Accepted by John Geronimo.
Commenting is disabled because there's a newer build on this branch