Bug 834414 - Fix leaks caused by missing tab change listener unregistrations. r=sriram
Bug 834414 - Remove unnecessary getInstance call that was leaking an App instance. r=wesj
Bug 834414 - Destroy the SiteIdentityPopup when the activity is destroyed to prevent leaking the activity. r=margaret
Bug 834414 - Remove a dangling reference to the LayerView in the IME code when the activity is destroyed. r=jchen
Bug 834414 - Stop holding on to a content resolver in Tab, which leaks the Activity instance it is associated with. r=bnicholson
Bug 834414 - Free the local refs in GeckoThread's long-running run method to prevent leaks. r=cpeterson