Delete AudioOutputMixer.

media/audio/audio_output_mixer.h

Index: media/audio/audio_output_mixer.h
diff --git a/media/audio/audio_output_mixer.h b/media/audio/audio_output_mixer.h
deleted file mode 100644
index 4ddeeef282905720857da4e3d40ee283a88429a9..0000000000000000000000000000000000000000
--- a/media/audio/audio_output_mixer.h
+++ /dev/null
@@ -1,94 +0,0 @@
-// 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.
-
-// AudioOutputMixer is a class that implements browser-side audio mixer.
-// AudioOutputMixer implements both AudioOutputDispatcher and
-// AudioSourceCallback interfaces.
-
-#ifndef MEDIA_AUDIO_AUDIO_OUTPUT_MIXER_H_
-#define MEDIA_AUDIO_AUDIO_OUTPUT_MIXER_H_
-
-#include <map>
-
-#include "base/basictypes.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "base/synchronization/lock.h"
-#include "base/timer.h"
-#include "media/audio/audio_io.h"
-#include "media/audio/audio_manager.h"
-#include "media/audio/audio_output_dispatcher.h"
-#include "media/audio/audio_parameters.h"
-
-namespace media {
-
-class MEDIA_EXPORT AudioOutputMixer
-    : public AudioOutputDispatcher,
-      public AudioOutputStream::AudioSourceCallback {
- public:
-  AudioOutputMixer(AudioManager* audio_manager,
-                   const AudioParameters& params,
-                   const base::TimeDelta& close_delay);
-
-  // AudioOutputDispatcher interface.
-  virtual bool OpenStream() OVERRIDE;
-  virtual bool StartStream(AudioOutputStream::AudioSourceCallback* callback,
-                           AudioOutputProxy* stream_proxy) OVERRIDE;
-  virtual void StopStream(AudioOutputProxy* stream_proxy) OVERRIDE;
-  virtual void StreamVolumeSet(AudioOutputProxy* stream_proxy,
-                               double volume) OVERRIDE;
-  virtual void CloseStream(AudioOutputProxy* stream_proxy) OVERRIDE;
-  virtual void Shutdown() OVERRIDE;
-
-  // AudioSourceCallback interface.
-  virtual uint32 OnMoreData(uint8* dest,
-                            uint32 max_size,
-                            AudioBuffersState buffers_state) OVERRIDE;
-  virtual void OnError(AudioOutputStream* stream, int code) OVERRIDE;
-  virtual void WaitTillDataReady() OVERRIDE;
-
- private:
-  friend class base::RefCountedThreadSafe<AudioOutputMixer>;
-  virtual ~AudioOutputMixer();
-
-  // Called by |close_timer_|. Closes physical stream.
-  void ClosePhysicalStream();
-
-  // The |lock_| must be acquired whenever we modify |proxies_| in the audio
-  // manager thread or accessing it in the hardware audio thread. Read in the
-  // audio manager thread is safe.
-  base::Lock lock_;
-
-  // List of audio output proxies currently being played.
-  // For every proxy we store aux structure containing data necessary for
-  // mixing.
-  struct ProxyData {
-    AudioOutputStream::AudioSourceCallback* audio_source_callback;
-    double volume;
-    int pending_bytes;
-  };
-  typedef std::map<AudioOutputProxy*, ProxyData> ProxyMap;
-  ProxyMap proxies_;
-
-  // Physical stream for this mixer.
-  scoped_ptr<AudioOutputStream> physical_stream_;
-
-  // Temporary buffer used when mixing. Allocated in the constructor
-  // to avoid constant allocation/deallocation in the callback.
-  scoped_array<uint8> mixer_data_;
-
-  // Used to post delayed tasks to ourselves that we cancel inside Shutdown().
-  base::WeakPtrFactory<AudioOutputMixer> weak_this_;
-  base::DelayTimer<AudioOutputMixer> close_timer_;
-
-  // Size of data in all in-flight buffers.
-  int pending_bytes_;
-
-  DISALLOW_COPY_AND_ASSIGN(AudioOutputMixer);
-};
-
-}  // namespace media
-
-#endif  // MEDIA_AUDIO_AUDIO_OUTPUT_MIXER_H_