Sync ui/events to chromium @ https://codereview.chromium.org/1210203002

ui/events/gestures/gesture_provider_impl.h

Index: ui/events/gestures/gesture_provider_impl.h
diff --git a/ui/events/gestures/gesture_provider_impl.h b/ui/events/gestures/gesture_provider_impl.h
index fd907e1faf031084d68cedd2d6b9be71c0e881c7..807ec2773171c5270b2d5331f01ca733ae7d9d82 100644
--- a/ui/events/gestures/gesture_provider_impl.h
+++ b/ui/events/gestures/gesture_provider_impl.h
@@ -29,8 +29,8 @@ class EVENTS_EXPORT GestureProviderImpl : public GestureProviderClient {
   GestureProviderImpl(GestureProviderImplClient* client);
   ~GestureProviderImpl() override;
 
-  bool OnTouchEvent(const TouchEvent& event);
-  void OnTouchEventAck(bool event_consumed);
+  bool OnTouchEvent(TouchEvent* event);
+  void OnTouchEventAck(uint32 unique_event_id, bool event_consumed);
   const MotionEventImpl& pointer_state() { return pointer_state_; }
   ScopedVector<GestureEvent>* GetAndResetPendingGestures();
 
@@ -47,7 +47,6 @@ class EVENTS_EXPORT GestureProviderImpl : public GestureProviderClient {
   MotionEventImpl pointer_state_;
   FilteredGestureProvider filtered_gesture_provider_;
 
-  ui::LatencyInfo last_touch_event_latency_info_;
   bool handling_event_;
   ScopedVector<GestureEvent> pending_gestures_;