Rename the aura_shell namespace to ash

ash/wm/show_state_controller.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 ASH_WM_SHOW_STATE_CONTROLLER_H_
 #define ASH_WM_SHOW_STATE_CONTROLLER_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "ui/aura/window_observer.h"
 
 namespace aura {
 class Window;
 }
 
-namespace aura_shell {
+namespace ash {
 namespace internal {
 
 class WorkspaceManager;
 
 // ShowStateController controls the window's bounds when
 // the window's show state property has changed.
 class ShowStateController : public aura::WindowObserver {
 public:
   explicit ShowStateController(WorkspaceManager* layout_manager);
   virtual ~ShowStateController();
 
   // aura::WindowObserver overrides:
   virtual void OnWindowPropertyChanged(aura::Window* window,
                                        const char* name,
                                        void* old) OVERRIDE;
 
  private:
   // |workspace_maanger_| is owned by |WorkspaceController|.
   WorkspaceManager* workspace_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(ShowStateController);
 };
 
-}  // namepsace aura_shell
 }  // namepsace internal
+}  // namepsace ash
 
 #endif  // ASH_WM_SHOW_STATE_CONTROLLER_H_