Support for remote audio into tracks

talk/app/webrtc/rtpreceiver.h

Index: talk/app/webrtc/rtpreceiver.h
diff --git a/talk/app/webrtc/rtpreceiver.h b/talk/app/webrtc/rtpreceiver.h
index a93ccbcbfe89ca63ad650879f95453714709bb6d..db021baf6869984f41ecb82629e180d2c5528dc6 100644
--- a/talk/app/webrtc/rtpreceiver.h
+++ b/talk/app/webrtc/rtpreceiver.h
@@ -68,10 +68,10 @@ class AudioRtpReceiver : public ObserverInterface,
  private:
   void Reconfigure();
 
-  std::string id_;
-  rtc::scoped_refptr<AudioTrackInterface> track_;
-  uint32_t ssrc_;
-  AudioProviderInterface* provider_;
+  const std::string id_;
+  const rtc::scoped_refptr<AudioTrackInterface> track_;
+  const uint32_t ssrc_;
+  AudioProviderInterface* provider_;  // Set to null in Stop().

[perkj_webrtc, 2015/12/10 12:24:05]

Can you make sure |provider_| in remote source is also set to null then to
ensure it can no longer be used? 

[tommi, 2015/12/10 22:37:25]

As discussed offline, it's handled in OnClose() (also see other comment).

   bool cached_track_enabled_;
 };