Adding missing stats class registration, lost in #10298.

webrtc/video/video_send_stream.cc

 /*
  *  Copyright (c) 2013 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 136 matching lines @@
   vie_channel_.reset(new ViEChannel(
       num_cpu_cores, config.send_transport, module_process_thread_,
       channel_group_->GetRtcpIntraFrameObserver(),
       channel_group_->GetBitrateController()->CreateRtcpBandwidthObserver(),
       transport_feedback_observer,
       channel_group_->GetRemoteBitrateEstimator(false),
       channel_group_->GetCallStats()->rtcp_rtt_stats(), channel_group_->pacer(),
       channel_group_->packet_router(), ssrcs.size(), true));
   RTC_CHECK(vie_channel_->Init() == 0);
 
+  channel_group_->GetCallStats()->RegisterStatsObserver(
+      vie_channel_->GetStatsObserver());
+
   vie_encoder_->StartThreadsAndSetSharedMembers(
       vie_channel_->send_payload_router(),
       vie_channel_->vcm_protection_callback());
 
   std::vector<uint32_t> first_ssrc(1, ssrcs[0]);
   vie_encoder_->SetSsrcs(first_ssrc);
 
   for (size_t i = 0; i < config_.rtp.extensions.size(); ++i) {
     const std::string& extension = config_.rtp.extensions[i].name;
     int id = config_.rtp.extensions[i].id;
@@ skipping 379 matching lines @@
                                        vie_channel_->IsSendingFecEnabled());
 
   // Restart the media flow
   vie_encoder_->Restart();
 
   return true;
 }
 
 }  // namespace internal
 }  // namespace webrtc