Ensures that WebRTC works for device selection using a different sample rate than default

content/renderer/media/webrtc_audio_device_impl.h

Index: content/renderer/media/webrtc_audio_device_impl.h
diff --git a/content/renderer/media/webrtc_audio_device_impl.h b/content/renderer/media/webrtc_audio_device_impl.h
index 701a7c2c9945fedc913fa9dc47477caa5f4dbcc1..5c8c12d5242525d8c3cba433fad4e5324d3f7e28 100644
--- a/content/renderer/media/webrtc_audio_device_impl.h
+++ b/content/renderer/media/webrtc_audio_device_impl.h
@@ -369,9 +369,6 @@ class CONTENT_EXPORT WebRtcAudioDeviceImpl
   virtual int32_t SetLoudspeakerStatus(bool enable) OVERRIDE;
   virtual int32_t GetLoudspeakerStatus(bool* enabled) const OVERRIDE;
 
-  // Sets the session id.
-  void SetSessionId(int session_id);
-
   // Sets the |renderer_|, returns false if |renderer_| has already existed.
   bool SetRenderer(WebRtcAudioRenderer* renderer);
 
@@ -439,10 +436,6 @@ class CONTENT_EXPORT WebRtcAudioDeviceImpl
 
   base::TimeTicks last_process_time_;
 
-  // Id of the media session to be started, it tells which device to be used
-  // on the input/capture side.
-  int session_id_;
-
   // Protects |recording_|, |output_delay_ms_|, |input_delay_ms_|, |renderer_|.
   mutable base::Lock lock_;