Revert of Refactor X11ForeignWindowManager

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"
 #include "base/strings/string_number_conversions.h"
 #include "ui/aura/env.h"
 #include "ui/aura/window_event_dispatcher.h"
+#include "ui/base/x/x11_foreign_window_manager.h"
 #include "ui/base/x/x11_menu_list.h"
 #include "ui/base/x/x11_util.h"
 #include "ui/events/platform/platform_event_source.h"
 #include "ui/gfx/x/x11_error_tracker.h"
 #include "ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h"
 
 namespace {
 
 const char* const kAtomsToCache[] = {
   "_NET_CURRENT_DESKTOP",
@@ skipping 108 matching lines @@
   // coordinates and stacking order to eliminate repeated calls to the X server
   // during mouse movement, drag and shaping events.
   if (event_type == CreateNotify) {
     // The window might be destroyed if the message pump did not get a chance to
     // run but we can safely ignore the X error.
     gfx::X11ErrorTracker error_tracker;
     ui::XMenuList::GetInstance()->MaybeRegisterMenu(window);
   } else {
     ui::XMenuList::GetInstance()->MaybeUnregisterMenu(window);
   }
+
+  if (event_type == DestroyNotify) {
+    // Notify the XForeignWindowManager that |window| has been destroyed.
+    ui::XForeignWindowManager::GetInstance()->OnWindowDestroyed(window);
+  }
 }
 
 }  // namespace views