WebRtcVoiceMediaChannel::AddRecvStream: Don't call SetRecPayloadType

webrtc/modules/audio_coding/include/audio_coding_module.h

Index: webrtc/modules/audio_coding/include/audio_coding_module.h
diff --git a/webrtc/modules/audio_coding/include/audio_coding_module.h b/webrtc/modules/audio_coding/include/audio_coding_module.h
index 1893b626de86dcbeb2809fef169ccb423b3fb4a4..b5cbff2d3a86cf52206f128a08fe71ecca6a64e0 100644
--- a/webrtc/modules/audio_coding/include/audio_coding_module.h
+++ b/webrtc/modules/audio_coding/include/audio_coding_module.h
@@ -485,6 +485,10 @@ class AudioCodingModule {
   //
   virtual int32_t PlayoutFrequency() const = 0;
 
+  // Replace any existing decoders with the given payload type -> decoder map.

[the sun, 2017/03/14 20:07:00]

nit: how about renaming the argument so that the comment can be removed?

[kwiberg-webrtc, 2017/03/16 10:24:12]

payload_type_to_decoder_format_map? That's a mouthful... and not as easy to read
as the comment because _ is the only available punctuation.

+  virtual void SetReceiveCodecs(
+      const std::map<int, SdpAudioFormat>& codecs) = 0;
+
   // Registers a decoder for the given payload type. Returns true iff
   // successful.
   virtual bool RegisterReceiveCodec(int rtp_payload_type,