It shouldn't have "xpc" in the name. There is no xpc involved here. This is the queue specific to a JSContext.
Created attachment 225403 [details] [PATCH] Proposed Fix
Comment on attachment 225403 [details] [PATCH] Proposed Fix Clearing flags on attachment: 225403 Committed r164829: <http://trac.webkit.org/changeset/164829>
All reviewed patches have been landed. Closing bug.