Reland Replace interface VideoCapturerInput with VideoSinkInterface.

webrtc/media/engine/fakewebrtccall.h

Index: webrtc/media/engine/fakewebrtccall.h
diff --git a/webrtc/media/engine/fakewebrtccall.h b/webrtc/media/engine/fakewebrtccall.h
index d3af222489f60c4cd58fcf3883333b0d92769fb1..29142c18b777f3c6d3816cd8e22dc6bde8cf50e4 100644
--- a/webrtc/media/engine/fakewebrtccall.h
+++ b/webrtc/media/engine/fakewebrtccall.h
@@ -99,11 +99,13 @@ class FakeAudioReceiveStream final : public webrtc::AudioReceiveStream {
   bool started_ = false;
 };
 
-class FakeVideoSendStream final : public webrtc::VideoSendStream,
-                                  public webrtc::VideoCaptureInput {
+class FakeVideoSendStream final
+    : public webrtc::VideoSendStream,
+      public rtc::VideoSinkInterface<webrtc::VideoFrame> {
  public:
   FakeVideoSendStream(webrtc::VideoSendStream::Config config,
                       webrtc::VideoEncoderConfig encoder_config);
+  ~FakeVideoSendStream() override;
   const webrtc::VideoSendStream::Config& GetConfig() const;
   const webrtc::VideoEncoderConfig& GetEncoderConfig() const;
   std::vector<webrtc::VideoStream> GetVideoStreams();
@@ -122,14 +124,16 @@ class FakeVideoSendStream final : public webrtc::VideoSendStream,
   }
 
  private:
-  void IncomingCapturedFrame(const webrtc::VideoFrame& frame) override;
+  // rtc::VideoSinkInterface<VideoFrame> implementation.
+  void OnFrame(const webrtc::VideoFrame& frame) override;
 
   // webrtc::VideoSendStream implementation.
   void Start() override;
   void Stop() override;
+  void SetSource(
+      rtc::VideoSourceInterface<webrtc::VideoFrame>* source) override;
   webrtc::VideoSendStream::Stats GetStats() override;
   void ReconfigureVideoEncoder(webrtc::VideoEncoderConfig config) override;
-  webrtc::VideoCaptureInput* Input() override;
 
   bool sending_;
   webrtc::VideoSendStream::Config config_;
@@ -139,6 +143,7 @@ class FakeVideoSendStream final : public webrtc::VideoSendStream,
     webrtc::VideoCodecVP8 vp8;
     webrtc::VideoCodecVP9 vp9;
   } vpx_settings_;
+  rtc::VideoSourceInterface<webrtc::VideoFrame>* source_;
   int num_swapped_frames_;
   webrtc::VideoFrame last_frame_;
   webrtc::VideoSendStream::Stats stats_;