PlatformEventDispatcher::DispatchEvent() should return a PostDispatchAction

ui/views/widget/desktop_aura/x11_desktop_handler.cc

 // Copyright (c) 2012 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/views/widget/desktop_aura/x11_desktop_handler.h"
 
 #include <X11/Xatom.h>
 #include <X11/Xlib.h>
 
 #include "base/message_loop/message_loop.h"
@@ skipping 138 matching lines @@
       NOTREACHED();
   }
 }
 
 bool X11DesktopHandler::CanDispatchEvent(const ui::PlatformEvent& event) {
   return event->type == CreateNotify || event->type == DestroyNotify ||
          (event->type == PropertyNotify &&
           event->xproperty.window == x_root_window_);
 }
 
-uint32_t X11DesktopHandler::DispatchEvent(const ui::PlatformEvent& event) {
+ui::PostDispatchAction X11DesktopHandler::DispatchEvent(
+    const ui::PlatformEvent& event) {
   switch (event->type) {
     case PropertyNotify: {
       // Check for a change to the active window.
       CHECK_EQ(x_root_window_, event->xproperty.window);
       ::Atom active_window_atom = atom_cache_.GetAtom("_NET_ACTIVE_WINDOW");
       if (event->xproperty.atom == active_window_atom) {
         ::Window window;
         if (ui::GetXIDProperty(x_root_window_, "_NET_ACTIVE_WINDOW", &window) &&
             window) {
           OnActiveWindowChanged(window, ACTIVE);
@@ skipping 65 matching lines @@
     ui::XMenuList::GetInstance()->MaybeUnregisterMenu(window);
   }
 
   if (event_type == DestroyNotify) {
     // Notify the XForeignWindowManager that |window| has been destroyed.
     ui::XForeignWindowManager::GetInstance()->OnWindowDestroyed(window);
   }
 }
 
 }  // namespace views