Re-enable Eager Gesture Recognition on Aura

ui/events/event.cc

Index: ui/events/event.cc
diff --git a/ui/events/event.cc b/ui/events/event.cc
index e93a0aedf618c3810be06c34b6b253f258c29be3..20f336caf7b18c934d6fc0ecc7f71cab4f6e706a 100644
--- a/ui/events/event.cc
+++ b/ui/events/event.cc
@@ -108,6 +108,11 @@ bool X11EventHasNonStandardState(const base::NativeEvent& event) {
 #endif
 }
 
+unsigned long long get_next_touch_event_id() {
+  static unsigned long long id = 0;
+  return id++;
+}
+
 }  // namespace
 
 namespace ui {
@@ -170,6 +175,10 @@ bool Event::HasNativeEvent() const {
   return !!std::memcmp(&native_event_, &null_event, sizeof(null_event));
 }
 
+void Event::DisableSynchronousHandling() {
+  result_ = static_cast<EventResult>(result_ | ER_DISABLE_SYNC_HANDLING);
+}
+
 void Event::StopPropagation() {
   // TODO(sad): Re-enable these checks once View uses dispatcher to dispatch
   // events.
@@ -514,6 +523,7 @@ void MouseWheelEvent::UpdateForRootTransform(
 TouchEvent::TouchEvent(const base::NativeEvent& native_event)
     : LocatedEvent(native_event),
       touch_id_(GetTouchId(native_event)),
+      unique_event_id_(get_next_touch_event_id()),
       radius_x_(GetTouchRadiusX(native_event)),
       radius_y_(GetTouchRadiusY(native_event)),
       rotation_angle_(GetTouchAngle(native_event)),
@@ -537,6 +547,7 @@ TouchEvent::TouchEvent(EventType type,
                        base::TimeDelta time_stamp)
     : LocatedEvent(type, location, location, time_stamp, 0),
       touch_id_(touch_id),
+      unique_event_id_(get_next_touch_event_id()),
       radius_x_(0.0f),
       radius_y_(0.0f),
       rotation_angle_(0.0f),
@@ -555,6 +566,7 @@ TouchEvent::TouchEvent(EventType type,
                        float force)
     : LocatedEvent(type, location, location, time_stamp, flags),
       touch_id_(touch_id),
+      unique_event_id_(get_next_touch_event_id()),
       radius_x_(radius_x),
       radius_y_(radius_y),
       rotation_angle_(angle),