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

webrtc/modules/video_coding/codecs/i420/i420.cc

 /*
  *  Copyright (c) 2012 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/modules/video_coding/codecs/i420/include/i420.h"
 
 #include <limits>
 #include <string>
 
+#include "webrtc/api/video/i420_buffer.h"
 #include "webrtc/common_video/libyuv/include/webrtc_libyuv.h"
 
 namespace {
 const size_t kI420HeaderSize = 4;
 }
 
 namespace webrtc {
 
 I420Encoder::I420Encoder()
     : _inited(false), _encodedImage(), _encodedCompleteCallback(NULL) {}
@@ skipping 204 matching lines @@
     DecodedImageCallback* callback) {
   _decodeCompleteCallback = callback;
   return WEBRTC_VIDEO_CODEC_OK;
 }
 
 int I420Decoder::Release() {
   _inited = false;
   return WEBRTC_VIDEO_CODEC_OK;
 }
 }  // namespace webrtc