[NSNumber numberWithBool:true] is confusing as it normally takes a YES/NO. Either way it can be modernized to @YES.
Created attachment 262783 [details] [PATCH] Proposed Fix
Comment on attachment 262783 [details] [PATCH] Proposed Fix Clearing flags on attachment: 262783 Committed r190831: <http://trac.webkit.org/changeset/190831>
All reviewed patches have been landed. Closing bug.