Make VideoTrack and VideoTrackRenderers implement rtc::VideoSourceInterface.

webrtc/examples/peerconnection/client/linux/main_wnd.cc

Index: webrtc/examples/peerconnection/client/linux/main_wnd.cc
diff --git a/webrtc/examples/peerconnection/client/linux/main_wnd.cc b/webrtc/examples/peerconnection/client/linux/main_wnd.cc
index cf98c1cac7934efb4c6ce689d99b6a7d6b069167..5a9c26817552b05b72f3ce521d75aaaa262cabf1 100644
--- a/webrtc/examples/peerconnection/client/linux/main_wnd.cc
+++ b/webrtc/examples/peerconnection/client/linux/main_wnd.cc
@@ -460,11 +460,11 @@ GtkMainWnd::VideoRenderer::VideoRenderer(
       height_(0),
       main_wnd_(main_wnd),
       rendered_track_(track_to_render) {
-  rendered_track_->AddRenderer(this);
+  rendered_track_->AddOrUpdateSink(this, rtc::VideoSinkWants());
 }
 
 GtkMainWnd::VideoRenderer::~VideoRenderer() {
-  rendered_track_->RemoveRenderer(this);
+  rendered_track_->RemoveSink(this);
 }
 
 void GtkMainWnd::VideoRenderer::SetSize(int width, int height) {
@@ -480,11 +480,11 @@ void GtkMainWnd::VideoRenderer::SetSize(int width, int height) {
   gdk_threads_leave();
 }
 
-void GtkMainWnd::VideoRenderer::RenderFrame(
-    const cricket::VideoFrame* video_frame) {
+void GtkMainWnd::VideoRenderer::OnFrame(
+    const cricket::VideoFrame& video_frame) {
   gdk_threads_enter();
 
-  const cricket::VideoFrame* frame = video_frame->GetCopyWithRotationApplied();
+  const cricket::VideoFrame* frame = video_frame.GetCopyWithRotationApplied();
 
   SetSize(static_cast<int>(frame->GetWidth()),
           static_cast<int>(frame->GetHeight()));
@@ -511,5 +511,3 @@ void GtkMainWnd::VideoRenderer::RenderFrame(
 
   g_idle_add(Redraw, main_wnd_);
 }
-
-