Move responsibility for RTP header extensions on video receive.

webrtc/pc/webrtcsession.cc

 /*
  *  Copyright 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 932 matching lines @@
 }
 
 bool WebRtcSession::PushdownMediaDescription(
     cricket::ContentAction action,
     cricket::ContentSource source,
     std::string* err) {
   auto set_content = [this, action, source, err](cricket::BaseChannel* ch) {
     if (!ch) {
       return true;
     } else if (source == cricket::CS_LOCAL) {
+      const SessionDescription* local_desc = local_description()->description();
+      const ContentInfo* content_info = GetFirstDataContent(local_desc);
+      RTC_DCHECK(IsVideoContent(content_info));
+      const cricket::VideoContentDescription* content_desc =
+          static_cast<const cricket::VideoContentDescription*>(
+              content_info->description);
+      if (content_desc->rtp_header_extensions_set())
+        media_controller_->SetVideoReceiveRtpHeaderExtensions(
+            content_desc->rtp_header_extensions());
+
       return ch->PushdownLocalDescription(local_description()->description(),
                                           action, err);
     } else {
       return ch->PushdownRemoteDescription(remote_description()->description(),
                                            action, err);
     }
   };
 
   bool ret = (set_content(voice_channel()) && set_content(video_channel()) &&
               set_content(rtp_data_channel()));
@@ skipping 1421 matching lines @@
       (rtp_data_channel_->rtcp_dtls_transport() != nullptr);
   channel_manager_->DestroyRtpDataChannel(rtp_data_channel_.release());
   transport_controller_->DestroyDtlsTransport(
       transport_name, cricket::ICE_CANDIDATE_COMPONENT_RTP);
   if (need_to_delete_rtcp) {
     transport_controller_->DestroyDtlsTransport(
         transport_name, cricket::ICE_CANDIDATE_COMPONENT_RTCP);
   }
 }
 }  // namespace webrtc