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

ui/events/platform/x11/x11_event_source_libevent.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/events/platform/x11/x11_event_source_libevent.h"
 
 #include <X11/Xlib.h>
 #include <X11/extensions/XInput2.h>
 
 #include <memory>
@@ skipping 140 matching lines @@
 }
 
 void X11EventSourceLibevent::RemoveXEventDispatcher(
     XEventDispatcher* dispatcher) {
   dispatchers_xevent_.RemoveObserver(dispatcher);
 }
 
 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.
     DispatchXEventToXEventDispatchers(xevent);
   }
 }
 
 void X11EventSourceLibevent::AddEventWatcher() {
   if (initialized_)
     return;
@@ skipping 25 matching lines @@
 
 void X11EventSourceLibevent::OnFileCanReadWithoutBlocking(int fd) {
   event_source_.DispatchXEvents();
 }
 
 void X11EventSourceLibevent::OnFileCanWriteWithoutBlocking(int fd) {
   NOTREACHED();
 }
 
 }  // namespace ui