Added VideoTrackInterface::GetSink method, for use by VideoRtpReceiver. Get rid of FrameInput.

talk/app/webrtc/videosource.cc

Index: talk/app/webrtc/videosource.cc
diff --git a/talk/app/webrtc/videosource.cc b/talk/app/webrtc/videosource.cc
index 8006c583b6f7f00fac9b6b39d18401f33f06ef57..bc1196de0a46f830d0b259801fc2c35fd543a9e3 100644
--- a/talk/app/webrtc/videosource.cc
+++ b/talk/app/webrtc/videosource.cc
@@ -294,34 +294,6 @@ bool ExtractVideoOptions(const MediaConstraintsInterface* all_constraints,
   return all_valid;
 }
 
-class FrameInputWrapper : public cricket::VideoRenderer {
- public:
-  explicit FrameInputWrapper(cricket::VideoCapturer* capturer)
-      : capturer_(capturer) {
-    ASSERT(capturer_ != NULL);
-  }
-
-  virtual ~FrameInputWrapper() {}
-
-  // VideoRenderer implementation.
-  bool RenderFrame(const cricket::VideoFrame* frame) override {
-    if (!capturer_->IsRunning()) {
-      return true;
-    }
-
-    // This signal will be made on media engine render thread. The clients
-    // of this signal should have no assumptions on what thread this signal
-    // come from.
-    capturer_->SignalVideoFrame(capturer_, frame);
-    return true;
-  }
-
- private:
-  cricket::VideoCapturer* capturer_;
-
-  RTC_DISALLOW_COPY_AND_ASSIGN(FrameInputWrapper);
-};
-
 }  // anonymous namespace
 
 namespace webrtc {
@@ -418,15 +390,6 @@ void VideoSource::Initialize(
   // Initialize hasn't succeeded until a successful state change has occurred.
 }
 
-cricket::VideoRenderer* VideoSource::FrameInput() {
-  // Defer creation of frame_input_ until it's needed, e.g. the local video
-  // sources will never need it.
-  if (!frame_input_) {
-    frame_input_.reset(new FrameInputWrapper(video_capturer_.get()));
-  }
-  return frame_input_.get();
-}
-
 void VideoSource::Stop() {
   channel_manager_->StopVideoCapture(video_capturer_.get(), format_);
 }