[MediaFoundation] Invalidate only the videa area using MediaPlayer::repaint(), not the whole FrameView MediaPlayerPrivateMediaFoundation::invalidateFrameView() is invalidating the whole FrameView to render the next frame. (Bug 150941) It's too much. And, this doesn't work with TiledBacking (attachment 448832 [details]).
Created attachment 448888 [details] Patch
Comment on attachment 448888 [details] Patch Clearing flags on attachment: 448888 Committed r287948 (?): <https://commits.webkit.org/r287948>
All reviewed patches have been landed. Closing bug.
<rdar://problem/87484080>