Suppressed MEs for gestures from cancelled PEs

ui/events/event.h

Index: ui/events/event.h
diff --git a/ui/events/event.h b/ui/events/event.h
index 114d73ad320cd7fdfe2753c397b0669f8c4a4f9e..3f2dc8d63f48b508c2457ac2df103b9240f94c21 100644
--- a/ui/events/event.h
+++ b/ui/events/event.h
@@ -1049,11 +1049,14 @@ class EVENTS_EXPORT ScrollEvent : public MouseEvent {
 
 class EVENTS_EXPORT GestureEvent : public LocatedEvent {
  public:
+    // The constructor takes a default unique_touch_id of zero to support many
+    // (80+) existing tests that doesn't care about this id.
   GestureEvent(float x,
                float y,
                int flags,
                base::TimeDelta time_stamp,
-               const GestureEventDetails& details);
+               const GestureEventDetails& details,
+               uint32_t unique_touch_event_id = 0);
 
   // Create a new GestureEvent which is identical to the provided model.
   // If source / target windows are provided, the model location will be
@@ -1068,6 +1071,10 @@ class EVENTS_EXPORT GestureEvent : public LocatedEvent {
 
   const GestureEventDetails& details() const { return details_; }
 
+  uint32_t unique_touch_event_id() const {
+    return unique_touch_event_id_;
+  }
+
  private:
   // For (de)serialization.
   GestureEvent(EventType type, base::TimeDelta time_stamp, int flags)
@@ -1076,6 +1083,11 @@ class EVENTS_EXPORT GestureEvent : public LocatedEvent {
   friend struct IPC::ParamTraits<ui::GestureEvent>;
 
   GestureEventDetails details_;
+
+  // The unique id of the touch event that released the gesture event. This
+  // field gets a non-zero value only for gestures that are released through
+  // TouchDispositionGestureFilter::SendGesture.
+  uint32_t unique_touch_event_id_;
 };
 
 }  // namespace ui