Revert 251959 "Refactor the TrayAudio code so that it can be use..."

trunk/src/ash/system/chromeos/audio/tray_audio_chromeos.h

-// Copyright 2014 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_SYSTEM_CHROMEOS_AUDIO_TRAY_AUDIO_CHROMEOS_H_
-#define ASH_SYSTEM_CHROMEOS_AUDIO_TRAY_AUDIO_CHROMEOS_H_
-
-#include "ash/ash_export.h"
-#include "ash/system/audio/tray_audio.h"
-
-namespace ash {
-
-namespace internal {
-
-namespace tray {
-class AudioDetailedView;
-}
-
-class ASH_EXPORT TrayAudioChromeOs : public TrayAudio {
- public:
-  explicit TrayAudioChromeOs(SystemTray* system_tray,
-                             system::TrayAudioDelegate* audio_delegate);
-  virtual ~TrayAudioChromeOs();
-
- protected:
-  // Overridden from TrayAudio
-  virtual void Update() OVERRIDE;
-
- private:
-  // Overridden from SystemTrayItem.
-  virtual views::View* CreateDetailedView(user::LoginStatus status) OVERRIDE;
-  virtual void DestroyDetailedView() OVERRIDE;
-
-  tray::AudioDetailedView* audio_detail_view_;
-
-  DISALLOW_COPY_AND_ASSIGN(TrayAudioChromeOs);
-};
-
-}  // namespace internal
-}  // namespace ash
-
-#endif  // ASH_SYSTEM_CHROMEOS_AUDIO_TRAY_AUDIO_CHROMEOS_H_