Move VideoFrame and related declarations to webrtc/api/video.

webrtc/media/base/videobroadcaster.cc

 /*
  *  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.
  */
 
 #include "webrtc/media/base/videobroadcaster.h"
 
 #include <limits>
 
+#include "webrtc/api/video/i420_buffer.h"
 #include "webrtc/base/checks.h"
 #include "webrtc/base/logging.h"
 
 namespace rtc {
 
 VideoBroadcaster::VideoBroadcaster() {
   thread_checker_.DetachFromThread();
 }
 
 void VideoBroadcaster::AddOrUpdateSink(
@@ skipping 77 matching lines @@
     wants.max_pixel_count_step_up = Optional<int>();
   }
   current_wants_ = wants;
 }
 
 const rtc::scoped_refptr<webrtc::VideoFrameBuffer>&
 VideoBroadcaster::GetBlackFrameBuffer(int width, int height) {
   if (!black_frame_buffer_ || black_frame_buffer_->width() != width ||
       black_frame_buffer_->height() != height) {
     rtc::scoped_refptr<webrtc::I420Buffer> buffer =
-        new RefCountedObject<webrtc::I420Buffer>(width, height);
-    buffer->SetToBlack();
+        webrtc::I420Buffer::Create(width, height);
+    webrtc::I420Buffer::SetBlack(buffer.get());
     black_frame_buffer_ = buffer;
   }
 
   return black_frame_buffer_;
 }
 
 }  // namespace rtc