Couldn't resist testing animation rotation + windowless :) Works quite well.
Created attachment 40778 [details] Animated Flip I thought of replacing the existing flip, but I thought people might get annoyed with the animation when testing.
Comment on attachment 40778 [details] Animated Flip
Comment on attachment 40778 [details] Animated Flip Clearing flags on attachment: 40778 Committed r49240: <http://trac.webkit.org/changeset/49240>
All reviewed patches have been landed. Closing bug.