Add MuteableAudioOutputStream interface to export SetMute().

media/audio/android/audio_manager_android.h

 // 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.
 
 #ifndef MEDIA_AUDIO_ANDROID_AUDIO_MANAGER_ANDROID_H_
 #define MEDIA_AUDIO_ANDROID_AUDIO_MANAGER_ANDROID_H_
 
 #include <set>
 
 #include "base/android/jni_android.h"
 #include "base/macros.h"
 #include "base/synchronization/lock.h"
 #include "base/synchronization/waitable_event.h"
 #include "media/audio/audio_manager_base.h"
 
 namespace media {
 
-class OpenSLESOutputStream;
+class MuteableAudioOutputStream;
 
 // Android implemention of AudioManager.
 class MEDIA_EXPORT AudioManagerAndroid : public AudioManagerBase {
  public:
   AudioManagerAndroid(std::unique_ptr<AudioThread> audio_thread,
                       AudioLogFactory* audio_log_factory);
   ~AudioManagerAndroid() override;
 
   void InitializeIfNeeded();
 
@@ skipping 18 matching lines @@
   const char* GetName() override;
 
   // Implementation of AudioManagerBase.
   AudioOutputStream* MakeLinearOutputStream(
       const AudioParameters& params,
       const LogCallback& log_callback) override;
   AudioOutputStream* MakeLowLatencyOutputStream(
       const AudioParameters& params,
       const std::string& device_id,
       const LogCallback& log_callback) override;
+  AudioOutputStream* MakeBitstreamOutputStream(
+      const AudioParameters& params,
+      const std::string& device_id,
+      const LogCallback& log_callback) override;
   AudioInputStream* MakeLinearInputStream(
       const AudioParameters& params,
       const std::string& device_id,
       const LogCallback& log_callback) override;
   AudioInputStream* MakeLowLatencyInputStream(
       const AudioParameters& params,
       const std::string& device_id,
       const LogCallback& log_callback) override;
 
   static bool RegisterAudioManager(JNIEnv* env);
@@ skipping 22 matching lines @@
   bool IsAudioLowLatencySupported();
   int GetAudioLowLatencyOutputFrameSize();
   int GetOptimalOutputFrameSize(int sample_rate, int channels);
 
   void DoSetMuteOnAudioThread(bool muted);
   void DoSetVolumeOnAudioThread(double volume);
 
   // Java AudioManager instance.
   base::android::ScopedJavaGlobalRef<jobject> j_audio_manager_;
 
-  typedef std::set<OpenSLESOutputStream*> OutputStreams;
+  typedef std::set<MuteableAudioOutputStream*> OutputStreams;
   OutputStreams streams_;
 
   // Enabled when first input stream is created and set to false when last
   // input stream is destroyed. Also affects the stream type of output streams.
   bool communication_mode_is_on_;
 
   // If set, overrides volume level on output streams
   bool output_volume_override_set_;
   double output_volume_override_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioManagerAndroid);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_ANDROID_AUDIO_MANAGER_ANDROID_H_