Steps to reproduce:
1. Start a youtube video.
2. Click on resize (two-arrow) button to change its size.
Results: depending on original size, the video or its bounding view will be scaled incorrectly, with controls misplaced.
Created attachment 50828 [details]
I've tried using DOM events to make the test work automatically in browser without success.
Comment on attachment 50828 [details]
Does this hurt performance?
> Does this hurt performance?
The test I performed was putting six YouTube videos on a page and scrolling. This didn't seem to have been affected.
Created attachment 50836 [details]
oops, forgot about WebKitTools
Committed WebKitTools changes in <http://trac.webkit.org/changeset/56086>.