I was seeing leaks of UIScreenEdgePanGestureRecognizer related data allocated in WKSwipeTransitionController. Seems we should be autoreleasing the recognizer we are creating because this file is not ARC.
Created attachment 229709 [details] [PATCH] Proposed Fix
Comment on attachment 229709 [details] [PATCH] Proposed Fix Clearing flags on attachment: 229709 Committed r167552: <http://trac.webkit.org/changeset/167552>
All reviewed patches have been landed. Closing bug.