Revert "chromeos: Move files in //ash/common to //ash, part 3"

ash/mus/accessibility_delegate_mus.h

 // Copyright 2016 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_MUS_ACCESSIBILITY_DELEGATE_MUS_H_
 #define ASH_MUS_ACCESSIBILITY_DELEGATE_MUS_H_
 
-#include "ash/default_accessibility_delegate.h"
+#include "ash/common/default_accessibility_delegate.h"
 #include "base/macros.h"
 #include "services/ui/public/interfaces/accessibility_manager.mojom.h"
 
 namespace service_manager {
 class Connector;
 }
 
 namespace ash {
 
 class AccessibilityDelegateMus : public DefaultAccessibilityDelegate {
  public:
   explicit AccessibilityDelegateMus(service_manager::Connector* connector);
   ~AccessibilityDelegateMus() override;
 
  private:
   ui::mojom::AccessibilityManager* GetAccessibilityManager();
 
   // DefaultAccessibilityDelegate:
   void ToggleHighContrast() override;
 
   ui::mojom::AccessibilityManagerPtr accessibility_manager_ptr_;
   service_manager::Connector* connector_;
 
   DISALLOW_COPY_AND_ASSIGN(AccessibilityDelegateMus);
 };
 
 }  // namespace ash
 
 #endif  // ASH_MUS_ACCESSIBILITY_DELEGATE_MUS_H_