This method looks like it was leaking. But remove it entirely, since it doesn't look like it was being used at all.
Created attachment 228000 [details] [PATCH] Proposed Fix
Comment on attachment 228000 [details] [PATCH] Proposed Fix Huh.
Comment on attachment 228000 [details] [PATCH] Proposed Fix Clearing flags on attachment: 228000 Committed r166393: <http://trac.webkit.org/changeset/166393>
All reviewed patches have been landed. Closing bug.