[Ozone/x11] events can be dispatched to the wrong window

ui/events/platform/x11/x11_event_source_libevent.cc

Index: ui/events/platform/x11/x11_event_source_libevent.cc
diff --git a/ui/events/platform/x11/x11_event_source_libevent.cc b/ui/events/platform/x11/x11_event_source_libevent.cc
index 7edd46c84661c99ee44eef5d3667cdec56b8b6c6..48580de449e5ce7cbb96592510b886be83df14af 100644
--- a/ui/events/platform/x11/x11_event_source_libevent.cc
+++ b/ui/events/platform/x11/x11_event_source_libevent.cc
@@ -158,7 +158,8 @@ void X11EventSourceLibevent::RemoveXEventDispatcher(
 void X11EventSourceLibevent::ProcessXEvent(XEvent* xevent) {
   std::unique_ptr<ui::Event> translated_event = TranslateXEventToEvent(*xevent);
   if (translated_event) {
-    DispatchEvent(translated_event.get());
+    EventWithPlatformEvent ewxe = {translated_event.get(), xevent};
+    DispatchEvent(&ewxe);

[sadrul, 2017/04/04 04:02:06]

This is fairly hacky.

Maybe this should always go through the XEventDispatcher, or negotiate with the
XEventDispatchers to find the real target first?

   } else {
     // Only if we can't translate XEvent into ui::Event, try to dispatch XEvent
     // directly to XEventDispatchers.