Eliminate ash::internal namespace

ash/wm/resize_shadow_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_RESIZE_SHADOW_CONTROLLER_H_
 #define ASH_WM_RESIZE_SHADOW_CONTROLLER_H_
 
 #include <map>
 
 #include "ash/ash_export.h"
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/linked_ptr.h"
 #include "ui/aura/window_observer.h"
 
 namespace aura {
 class Window;
 }
 
 namespace ash {
-namespace internal {
-
 class ResizeShadow;
 
 // ResizeShadowController observes changes to resizable windows and shows
 // a resize handle visual effect when the cursor is near the edges.
 class ASH_EXPORT ResizeShadowController : public aura::WindowObserver {
  public:
   ResizeShadowController();
   virtual ~ResizeShadowController();
 
   // Shows the appropriate shadow for a given |window| and |hit_test| location.
@@ skipping 19 matching lines @@
   ResizeShadow* CreateShadow(aura::Window* window);
 
   // Returns the resize shadow for |window| or NULL if no shadow exists.
   ResizeShadow* GetShadowForWindow(aura::Window* window);
 
   WindowShadowMap window_shadows_;
 
   DISALLOW_COPY_AND_ASSIGN(ResizeShadowController);
 };
 
-}  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_WM_RESIZE_SHADOW_CONTROLLER_H_