Extract send-side ViEReceiver calls.

webrtc/video/vie_channel.cc

Index: webrtc/video/vie_channel.cc
diff --git a/webrtc/video/vie_channel.cc b/webrtc/video/vie_channel.cc
index 1ac22780c74f0f4ca65cc5236012cad8c3264ceb..c8f2e3945673791c2bc7f57f66f27541eccc9464 100644
--- a/webrtc/video/vie_channel.cc
+++ b/webrtc/video/vie_channel.cc
@@ -610,13 +610,9 @@ int32_t ViEChannel::GetLocalSSRC(uint8_t idx, unsigned int* ssrc) {
   return 0;
 }
 
-uint32_t ViEChannel::GetRemoteSSRC() {
-  RTC_DCHECK(sender_);
-  return vie_receiver_.GetRemoteSsrc();
-}
-
 int ViEChannel::SetRtxSendPayloadType(int payload_type,
                                       int associated_payload_type) {
+  RTC_DCHECK(sender_);
   for (RtpRtcp* rtp_rtcp : rtp_rtcp_modules_)
     rtp_rtcp->SetRtxSendPayloadType(payload_type, associated_payload_type);
   SetRtxSendStatus(true);
@@ -837,15 +833,6 @@ void ViEChannel::StopReceive() {
     StopDecodeThread();
 }
 
-int32_t ViEChannel::ReceivedRTCPPacket(const void* rtcp_packet,
-                                       size_t rtcp_packet_length) {
-  RTC_DCHECK(sender_);
-  return vie_receiver_.DeliverRtcp(
-             reinterpret_cast<const uint8_t*>(rtcp_packet), rtcp_packet_length)
-             ? 0
-             : -1;
-}
-
 int32_t ViEChannel::SetMTU(uint16_t mtu) {
   RTC_DCHECK(sender_);
   for (RtpRtcp* rtp_rtcp : rtp_rtcp_modules_)