Eliminate ash::internal namespace

ash/default_accessibility_delegate.h

 // Copyright 2013 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_DEFAULT_ACCESSIBILITY_DELEGATE_H_
 #define ASH_DEFAULT_ACCESSIBILITY_DELEGATE_H_
 
 #include "ash/accessibility_delegate.h"
 #include "ash/ash_export.h"
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 
 namespace ash {
-namespace internal {
 
 class ASH_EXPORT DefaultAccessibilityDelegate : public AccessibilityDelegate {
  public:
   DefaultAccessibilityDelegate();
   virtual ~DefaultAccessibilityDelegate();
 
   virtual bool IsSpokenFeedbackEnabled() const OVERRIDE;
   virtual void ToggleHighContrast() OVERRIDE;
   virtual bool IsHighContrastEnabled() const OVERRIDE;
   virtual void SetMagnifierEnabled(bool enabled) OVERRIDE;
@@ skipping 22 matching lines @@
   bool high_contrast_enabled_;
   bool screen_magnifier_enabled_;
   MagnifierType screen_magnifier_type_;
   bool large_cursor_enabled_;
   bool autoclick_enabled_;
   bool virtual_keyboard_enabled_;
   AccessibilityAlert accessibility_alert_;
   DISALLOW_COPY_AND_ASSIGN(DefaultAccessibilityDelegate);
 };
 
-}  // namespace internal
 }  // namespace ash
 
 #endif  // DEFAULT_ACCESSIBILITY_DELEGATE_H_