Moves more code to ash/wm/common

ash/wm/common/always_on_top_controller.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 ASH_WM_ALWAYS_ON_TOP_CONTROLLER_H_
-#define ASH_WM_ALWAYS_ON_TOP_CONTROLLER_H_
+#ifndef ASH_WM_COMMON_ALWAYS_ON_TOP_CONTROLLER_H_
+#define ASH_WM_COMMON_ALWAYS_ON_TOP_CONTROLLER_H_
 
 #include <memory>
 
 #include "ash/ash_export.h"
 #include "ash/wm/common/wm_window_observer.h"
 #include "base/macros.h"
 
 namespace ash {
 class WorkspaceLayoutManager;
 
@@ skipping 23 matching lines @@
                                intptr_t old) override;
   void OnWindowDestroying(wm::WmWindow* window) override;
 
   wm::WmWindow* always_on_top_container_;
 
   DISALLOW_COPY_AND_ASSIGN(AlwaysOnTopController);
 };
 
 }  // namepsace ash
 
-#endif  // ASH_WM_ALWAYS_ON_TOP_CONTROLLER_H_
+#endif  // ASH_WM_COMMON_ALWAYS_ON_TOP_CONTROLLER_H_