Move root_window.* to window_event_dispatcher.*

ui/aura/window_event_dispatcher.h

 // 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.
 
-#ifndef UI_AURA_ROOT_WINDOW_H_
-#define UI_AURA_ROOT_WINDOW_H_
+#ifndef UI_AURA_WINDOW_EVENT_DISPATCHER_H_
+#define UI_AURA_WINDOW_EVENT_DISPATCHER_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "ui/aura/aura_export.h"
@@ skipping 302 matching lines @@
   base::WeakPtrFactory<WindowEventDispatcher> repost_event_factory_;
 
   // Used to schedule DispatchHeldEvents() when |move_hold_count_| goes to 0.
   base::WeakPtrFactory<WindowEventDispatcher> held_event_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowEventDispatcher);
 };
 
 }  // namespace aura
 
-#endif  // UI_AURA_ROOT_WINDOW_H_
+#endif  // UI_AURA_WINDOW_EVENT_DISPATCHER_H_