Don't recreate the audio receive stream when updating the local_ssrc.

Bug: webrtc:11993
Change-Id: Ic5d8a8a8b7c12fb1d906e0b3cbdf657fd9e8eafc
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/222042
Commit-Queue: Tommi <tommi@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34299}
diff --git a/modules/rtp_rtcp/source/rtp_rtcp_impl.h b/modules/rtp_rtcp/source/rtp_rtcp_impl.h
index 5bcabc5..b0e0b41 100644
--- a/modules/rtp_rtcp/source/rtp_rtcp_impl.h
+++ b/modules/rtp_rtcp/source/rtp_rtcp_impl.h
@@ -63,6 +63,7 @@
                           size_t incoming_packet_length) override;
 
   void SetRemoteSSRC(uint32_t ssrc) override;
+  void SetLocalSsrc(uint32_t ssrc) override;
 
   // Sender part.
   void RegisterSendPayloadFrequency(int payload_type,