Add speaker on/off control on Android for WebRTC

media/audio/audio_manager_base.h

Index: media/audio/audio_manager_base.h
===================================================================
--- media/audio/audio_manager_base.h	(revision 189519)
+++ media/audio/audio_manager_base.h	(working copy)
@@ -136,11 +136,20 @@
   // from the audio thread (no locking).
   AudioOutputDispatchersMap output_dispatchers_;
 
+#if defined(OS_ANDROID)
+  // Java AudioManagerAndroid instance.
+  base::android::ScopedJavaGlobalRef<jobject> j_am_;

[tommi (sloooow) - chröme, 2013/03/21 15:31:27]

full_descriptive_variable_names_please_ :)

[Yaron, 2013/03/21 16:51:31]

Make this private. Also this object (AudioManagerBase) will get destroyed at
some point? Want to make sure we don't keep the java object from get gc'd

[leozwang1, 2013/03/21 18:51:35]

Done.

[leozwang1, 2013/03/21 18:51:35]

scoped_ptr<media::AudioManager> audio_manager_ is defined in broswer_main_loop.h

+#endif
+
  private:
   // Called by Shutdown().
   void ShutdownOnAudioThread();
 
+#if defined(OS_ANDROID)
   void SetAudioMode(int mode);
+  void RegisterHeadsetReceiver();
+  void UnRegisterHeadsetReceiver();

[tommi (sloooow) - chröme, 2013/03/21 15:31:27]

Unregister is one word I believe

[leozwang1, 2013/03/21 18:51:35]

Done.

+#endif
 
   // Counts the number of active input streams to find out if something else
   // is currently recording in Chrome.