aura: Repost click events that cause a menu to hide itself.

ui/aura/event.cc

Index: ui/aura/event.cc
diff --git a/ui/aura/event.cc b/ui/aura/event.cc
index c2a0510d398b92d2dd14bcb0c1cc217cee01b31e..1837cfaa627dbd712ff1c8c71994ee56636de333 100644
--- a/ui/aura/event.cc
+++ b/ui/aura/event.cc
@@ -129,7 +129,11 @@ void LocatedEvent::UpdateForRootTransform(const ui::Transform& root_transform) {
 
 MouseEvent::MouseEvent(const base::NativeEvent& native_event)
     : LocatedEvent(native_event) {
-  if (type() == ui::ET_MOUSE_PRESSED)
+  if (type() == ui::ET_MOUSE_PRESSED
+#if defined(USE_X11)
+      && !native_event->xany.send_event
+#endif
+      )
     SetClickCount(GetRepeatCount(*this));
 }