When a video enters or leaves fullscreen, the snapshot of the video flickers. This issue was once discussed with yoon in github.
Created attachment 270102 [details] Patch
@yoon, looks good to you?
Comment on attachment 270102 [details] Patch As we discussed at the hackfest! Looks good to me.
Comment on attachment 270102 [details] Patch rs=me since it's approved by Yoon
Oh, Cool. I did not expect r+ from you Michael. Thanks!
Comment on attachment 270102 [details] Patch Clearing flags on attachment: 270102 Committed r195771: <http://trac.webkit.org/changeset/195771>
All reviewed patches have been landed. Closing bug.