Created attachment 199813 [details] actual The canvas seem scaled, plus the outline (light blue border) is missing.
Created attachment 199814 [details] expected
Created attachment 199834 [details] Patch
LGTM. I just tried it locally, and it seems to fix the issue. Thx a lot for looking into this that quickly!
Comment on attachment 199834 [details] Patch Clearing flags on attachment: 199834 Committed r149276: <http://trac.webkit.org/changeset/149276>
All reviewed patches have been landed. Closing bug.