Move some more WM functionality down into ash.

ash/wm/root_window_event_filter.h

 // Copyright (c) 2011 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_SHELL_ROOT_WINDOW_EVENT_FILTER_H_
-#define UI_AURA_SHELL_ROOT_WINDOW_EVENT_FILTER_H_
+#ifndef ASH_WM_ROOT_WINDOW_EVENT_FILTER_H_
+#define ASH_WM_ROOT_WINDOW_EVENT_FILTER_H_
 #pragma once
 
 #include "base/compiler_specific.h"
 #include "base/observer_list.h"
 #include "ui/aura/event.h"
 #include "ui/aura/event_filter.h"
 #include "ui/aura_shell/aura_shell_export.h"
 
 namespace aura_shell {
 namespace internal {
@@ skipping 42 matching lines @@
 
   // Additional event filters that pre-handles events.
   ObserverList<aura::EventFilter, true> filters_;
 
   DISALLOW_COPY_AND_ASSIGN(RootWindowEventFilter);
 };
 
 }  // namespace internal
 }  // namespace aura_shell
 
-#endif  // UI_AURA_SHELL_ROOT_WINDOW_EVENT_FILTER_H_
+#endif  // ASH_WM_ROOT_WINDOW_EVENT_FILTER_H_