no need to use it with GCActivityCallback implemented.
Created attachment 161725 [details] the patch
Comment on attachment 161725 [details] the patch LGTM.
Comment on attachment 161725 [details] the patch Clearing flags on attachment: 161725 Committed r127278: <http://trac.webkit.org/changeset/127278>
All reviewed patches have been landed. Closing bug.