Suppressed MEs for gestures from cancelled PEs

ui/events/gesture_detection/gesture_event_data.h

Index: ui/events/gesture_detection/gesture_event_data.h
diff --git a/ui/events/gesture_detection/gesture_event_data.h b/ui/events/gesture_detection/gesture_event_data.h
index 541fe125f6b2c7453ae658d2e1ab1eb82cc8e6f0..190662310f3cebf5cbc97f11564424f8f140c639 100644
--- a/ui/events/gesture_detection/gesture_event_data.h
+++ b/ui/events/gesture_detection/gesture_event_data.h
@@ -28,7 +28,8 @@ struct GESTURE_DETECTION_EXPORT GestureEventData {
                    float raw_y,
                    size_t touch_point_count,
                    const gfx::RectF& bounding_box,
-                   int flags);
+                   int flags,
+                   uint32_t unique_touch_event_id);
   GestureEventData(EventType type, const GestureEventData&);
   GestureEventData(const GestureEventData& other);
 
@@ -44,6 +45,10 @@ struct GESTURE_DETECTION_EXPORT GestureEventData {
   float raw_y;
   int flags;
 
+  // This field gets a meaningful value right before sending the gesture event
+  // off to the renderer at TouchDispositionGestureFilter::SendGesture.
+  uint32_t unique_touch_event_id;
+
  private:
   friend class GestureEventDataPacket;