Use is<>() / downcast<>() for Image subclasses
Created attachment 239651 [details] Patch
Comment on attachment 239651 [details] Patch r=me
Comment on attachment 239651 [details] Patch Clearing flags on attachment: 239651 Committed r174623: <http://trac.webkit.org/changeset/174623>
All reviewed patches have been landed. Closing bug.