Eliminate ash::internal namespace

ash/focus_cycler.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 FOCUS_CYCLER_H_
 #define FOCUS_CYCLER_H_
 
 #include <vector>
 
 #include "ash/ash_export.h"
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 
 namespace views {
 class Widget;
 }  // namespace views
 
 namespace ash {
 
-namespace internal {
-
 // This class handles moving focus between a set of widgets and the main browser
 // window.
 class ASH_EXPORT FocusCycler {
  public:
   enum Direction {
     FORWARD,
     BACKWARD
   };
 
   FocusCycler();
@@ skipping 15 matching lines @@
 
  private:
   std::vector<views::Widget*> widgets_;
 
   // See description above getter.
   views::Widget* widget_activating_;
 
   DISALLOW_COPY_AND_ASSIGN(FocusCycler);
 };
 
-}  // namespace internal
-
 }  // namespace ash
 
 #endif  // FOCUS_CYCLER_H_