Bug 895905 - B2G mechanism for content to inform APZC about scroll events. Handles multi-APZC. r=kats
Bug 895905 - Eliminate some of the special handling of ROOT_SCROLL_ID. r=kats, r=tn
Bug 895905 - Fixed a compiler error on GCC 4.7. r=Bas
Bug 906109 - Make the GestureEventListener realize when a touch point disappears. r=

When receiving a touch event arrives that is missing previously-known
touch points, remove them from the list. This makes the GestureEventListener
more robust so that it doesn't keeping doing pinches when there should
be pans.
Bug 898443 - Add a parent pointer to the AsyncPanZoomController class. r=
Bug 898443 - Extract input transform calculations from GetAPZCAtPoint. No functional changes. r=
Bug 898443 - Ensure that all multitouch events following a START go to the same APZC instance. r=
Bug 898443 - Completely extract the transformation calculation from GetTargetAPZC. r=
Bug 898443 - Always use the innermost APZC containing all touch points for multi-touch inputs. r=
Turn on logging in APZCTM