Adding an interface to allow extention of the audio player for CRD and iOS.

remoting/client/audio_decode_scheduler.h

Index: remoting/client/audio_decode_scheduler.h
diff --git a/remoting/client/audio_decode_scheduler.h b/remoting/client/audio_decode_scheduler.h
index 767342f011edf79ddb37bc5303367846a957cef1..4710eea38c64deb46784e727100d592b373fab9e 100644
--- a/remoting/client/audio_decode_scheduler.h
+++ b/remoting/client/audio_decode_scheduler.h
@@ -23,14 +23,14 @@ class SessionConfig;
 
 class AudioDecoder;
 class AudioPacket;
-class AudioPlayer;
+class AudioConsumer;
 
 class AudioDecodeScheduler : public protocol::AudioStub {
  public:
   AudioDecodeScheduler(
       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> audio_decode_task_runner,
-      std::unique_ptr<AudioPlayer> audio_player);
+      AudioConsumer* audio_consumer);
   ~AudioDecodeScheduler() override;
 
   // Initializes decoder with the information from the protocol config.