Revert of Make cricket::VideoCapturer implement VideoSourceInterface

webrtc/media/base/videosourceinterface.h

Index: webrtc/media/base/videosourceinterface.h
diff --git a/webrtc/media/base/videosourceinterface.h b/webrtc/media/base/videosourceinterface.h
deleted file mode 100644
index 14624585432194c74bec680c6f18befb56ce79f5..0000000000000000000000000000000000000000
--- a/webrtc/media/base/videosourceinterface.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- *  Copyright (c) 2016 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.
- */
-
-#ifndef WEBRTC_MEDIA_BASE_VIDEOSOURCEINTERFACE_H_
-#define WEBRTC_MEDIA_BASE_VIDEOSOURCEINTERFACE_H_
-
-#include "webrtc/media/base/videosinkinterface.h"
-#include "webrtc/base/callback.h"
-
-namespace rtc {
-
-// VideoSinkWants is used for notifying the source of properties a video frame
-// should have when it is delivered to a certain sink.
-struct VideoSinkWants {
-  bool operator==(const VideoSinkWants& rh) const {
-    return rotation_applied == rh.rotation_applied;
-  }
-  bool operator!=(const VideoSinkWants& rh) const { return !operator==(rh); }
-
-  // Tells the source whether the sink wants frames with rotation applied.
-  // By default, the rotation is applied by the source.
-  bool rotation_applied = true;
-};
-
-template <typename VideoFrameT>
-class VideoSourceInterface {
- public:
-  virtual void AddOrUpdateSink(VideoSinkInterface<VideoFrameT>* sink,
-                               const VideoSinkWants& wants) = 0;
-  // RemoveSink must guarantee that at the time the method returns,
-  // there is no current and no future calls to VideoSinkInterface::OnFrame.
-  virtual void RemoveSink(VideoSinkInterface<VideoFrameT>* sink) = 0;
-
- protected:
-  virtual ~VideoSourceInterface() {}
-};
-
-}  // namespace rtc
-#endif  // WEBRTC_MEDIA_BASE_VIDEOSOURCEINTERFACE_H_