Revert of Replace interface VideoCapturerInput with VideoSinkInterface.

webrtc/video/video_send_stream.h

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 53 matching lines @@
                   const std::map<uint32_t, RtpState>& suspended_ssrcs);
 
   ~VideoSendStream() override;
 
   void SignalNetworkState(NetworkState state);
   bool DeliverRtcp(const uint8_t* packet, size_t length);
 
   // webrtc::VideoSendStream implementation.
   void Start() override;
   void Stop() override;
-
-  void SetSource(
-      rtc::VideoSourceInterface<webrtc::VideoFrame>* source) override;
-
+  VideoCaptureInput* Input() override;
   void ReconfigureVideoEncoder(VideoEncoderConfig) override;
   Stats GetStats() override;
 
   typedef std::map<uint32_t, RtpState> RtpStateMap;
   RtpStateMap StopPermanentlyAndGetRtpStates();
 
  private:
   class ConstructionTask;
   class DestructAndGetRtpStateTask;
 
   rtc::ThreadChecker thread_checker_;
   rtc::TaskQueue* const worker_queue_;
   rtc::Event thread_sync_event_;
 
   SendStatisticsProxy stats_proxy_;
   const VideoSendStream::Config config_;
   std::unique_ptr<VideoSendStreamImpl> send_stream_;
   std::unique_ptr<ViEEncoder> vie_encoder_;
 };
 
 }  // namespace internal
 }  // namespace webrtc
 
 #endif  // WEBRTC_VIDEO_VIDEO_SEND_STREAM_H_