Caught by webkit-style. A parameter is being passed as RefPtr instead of PassRefPtr.
Created attachment 223376 [details] [PATCH] Proposed Fix
Comment on attachment 223376 [details] [PATCH] Proposed Fix Clearing flags on attachment: 223376 Committed r163565: <http://trac.webkit.org/changeset/163565>
All reviewed patches have been landed. Closing bug.