Replace SetCapturer and SetCaptureDevice by SetSource.

webrtc/pc/channel.cc

Index: webrtc/pc/channel.cc
diff --git a/webrtc/pc/channel.cc b/webrtc/pc/channel.cc
index 8e916f12793802f245313b3c088050b128961cdc..d0ce4624cf842bd042a5e967f4c5d71b8e3d48e5 100644
--- a/webrtc/pc/channel.cc
+++ b/webrtc/pc/channel.cc
@@ -1675,9 +1675,11 @@ bool VideoChannel::SetSink(uint32_t ssrc,
   return true;
 }
 
-bool VideoChannel::SetCapturer(uint32_t ssrc, VideoCapturer* capturer) {
-  return InvokeOnWorker(Bind(&VideoMediaChannel::SetCapturer,
-                             media_channel(), ssrc, capturer));
+void VideoChannel::SetSource(
+    uint32_t ssrc,
+    rtc::VideoSourceInterface<cricket::VideoFrame>* source) {
+  worker_thread()->Invoke<void>(Bind(&VideoMediaChannel::SetSource,
+                                     media_channel(), ssrc, source));
 }
 
 bool VideoChannel::SetVideoSend(uint32_t ssrc,