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

trunk/src/ash/system/audio/tray_audio.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_AUDIO_TRAY_AUDIO_H_
-#define ASH_SYSTEM_AUDIO_TRAY_AUDIO_H_
-
-#include "ash/system/audio/audio_observer.h"
-#include "ash/system/tray/tray_image_item.h"
-
-namespace ash {
-
-namespace system {
-class TrayAudioDelegate;
-}
-
-namespace internal {
-
-namespace tray {
-class VolumeView;
-}
-
-class TrayAudio : public TrayImageItem,
-                  public AudioObserver {
- public:
-  TrayAudio(SystemTray* system_tray, system::TrayAudioDelegate* audio_delegate);
-  virtual ~TrayAudio();
-
- protected:
-  virtual void Update();
-
-  system::TrayAudioDelegate* audio_delegate_;
-  tray::VolumeView* volume_view_;
-
-  // True if VolumeView should be created for accelerator pop up;
-  // Otherwise, it should be created for detailed view in ash tray bubble.
-  bool pop_up_volume_view_;
-
- private:
-  // Overridden from TrayImageItem.
-  virtual bool GetInitialVisibility() OVERRIDE;
-
-  // Overridden from SystemTrayItem.
-  virtual views::View* CreateDefaultView(user::LoginStatus status) OVERRIDE;
-  virtual views::View* CreateDetailedView(user::LoginStatus status) OVERRIDE;
-  virtual void DestroyDefaultView() OVERRIDE;
-  virtual void DestroyDetailedView() OVERRIDE;
-  virtual bool ShouldHideArrow() const OVERRIDE;
-  virtual bool ShouldShowShelf() const OVERRIDE;
-
-  // Overridden from AudioObserver.
-  virtual void OnOutputVolumeChanged() OVERRIDE;
-  virtual void OnOutputMuteChanged() OVERRIDE;
-  virtual void OnAudioNodesChanged() OVERRIDE;
-  virtual void OnActiveOutputNodeChanged() OVERRIDE;
-  virtual void OnActiveInputNodeChanged() OVERRIDE;
-
-  DISALLOW_COPY_AND_ASSIGN(TrayAudio);
-};
-
-}  // namespace internal
-}  // namespace ash
-
-#endif  // ASH_SYSTEM_AUDIO_TRAY_AUDIO_H_