Re-enable Eager Gesture Recognition on Aura

ui/events/gesture_detection/filtered_gesture_provider.h

Index: ui/events/gesture_detection/filtered_gesture_provider.h
diff --git a/ui/events/gesture_detection/filtered_gesture_provider.h b/ui/events/gesture_detection/filtered_gesture_provider.h
index f54b29085f9053279c4074d4e406ec40617e3dc5..56682a336c1e83dabd3b6b9f506aeb78dab0864c 100644
--- a/ui/events/gesture_detection/filtered_gesture_provider.h
+++ b/ui/events/gesture_detection/filtered_gesture_provider.h
@@ -28,9 +28,13 @@ class GESTURE_DETECTION_EXPORT FilteredGestureProvider
   // should drop |event|, not forwarding it to the renderer.
   bool OnTouchEvent(const MotionEvent& event);
 
-  // To be called upon ack of an event that was forwarded after a successful
-  // call to |OnTouchEvent()|.
-  void OnTouchEventAck(bool event_consumed);
+  // To be called upon asynchronous ack of an event that was forwarded
+  // after a successful call to |OnTouchEvent()|.
+  void OnAsyncTouchEventAck(bool event_consumed);
+
+  // To be called upon synchronous ack of an event that was forwarded
+  // after a successful call to |OnTouchEvent()|.
+  void OnSyncTouchEventAck(bool event_consumed);
 
   // Methods delegated to |gesture_provider_|.
   void ResetDetection();