Move video send/receive stream headers to webrtc/call.

webrtc/media/base/videosourceinterface.h

 /*
  *  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/rtc_base/optional.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 {
+  VideoSinkWants();
+  ~VideoSinkWants();
   // Tells the source whether the sink wants frames with rotation applied.
   // By default, any rotation must be applied by the sink.
   bool rotation_applied = false;
 
   // Tells the source that the sink only wants black frames.
   bool black_frames = false;
 
   // Tells the source the maximum number of pixels the sink wants.
   int max_pixel_count = std::numeric_limits<int>::max();
   // Tells the source the desired number of pixels the sinks wants. This will
@@ skipping 14 matching lines @@
   // 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_