Replace SetCapturer and SetCaptureDevice by SetSource.

webrtc/api/rtpreceiver.cc

Index: webrtc/api/rtpreceiver.cc
diff --git a/webrtc/api/rtpreceiver.cc b/webrtc/api/rtpreceiver.cc
index 0150dfd546c25e3b238b61a22e8ed58adf7dbd0d..9a5fcfc9dbceb230b2b5c051b60a9ea2e21f7f3a 100644
--- a/webrtc/api/rtpreceiver.cc
+++ b/webrtc/api/rtpreceiver.cc
@@ -24,7 +24,7 @@ AudioRtpReceiver::AudioRtpReceiver(MediaStreamInterface* stream,
       ssrc_(ssrc),
       provider_(provider),
       track_(AudioTrackProxy::Create(
-          rtc::Thread::Current(),
+          rtc::Thread::Current(), nullptr,
           AudioTrack::Create(track_id,
                              RemoteAudioSource::Create(ssrc, provider)))),
       cached_track_enabled_(track_->enabled()) {
@@ -84,7 +84,7 @@ VideoRtpReceiver::VideoRtpReceiver(MediaStreamInterface* stream,
                                                      worker_thread,
                                                      true /* remote */)),
       track_(VideoTrackProxy::Create(
-          rtc::Thread::Current(),
+          rtc::Thread::Current(), worker_thread,
           VideoTrack::Create(track_id, source_.get()))) {
   source_->SetState(MediaSourceInterface::kLive);
   provider_->SetVideoPlayout(ssrc_, true, &broadcaster_);