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

webrtc/common_video/video_frame_buffer.cc

 /*

[the sun, 2016/11/24 10:36:59]

Rename file to i420_buffer.cc

[nisse-webrtc, 2016/11/25 08:58:03]

I think that should be done in this cl if and only if we decide to move the
I420Buffer class to api/video.

  *  Copyright (c) 2015 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/common_video/include/video_frame_buffer.h"
 
@@ skipping 13 matching lines @@
 namespace webrtc {
 
 namespace {
 
 int I420DataSize(int height, int stride_y, int stride_u, int stride_v) {
   return stride_y * height + (stride_u + stride_v) * ((height + 1) / 2);
 }
 
 }  // namespace
 
-VideoFrameBuffer::~VideoFrameBuffer() {}
-
 I420Buffer::I420Buffer(int width, int height)
     : I420Buffer(width, height, width, (width + 1) / 2, (width + 1) / 2) {
 }
 
 I420Buffer::I420Buffer(int width,
                        int height,
                        int stride_y,
                        int stride_u,
                        int stride_v)
     : width_(width),
@@ skipping 295 matching lines @@
 void* WrappedI420Buffer::native_handle() const {
   return nullptr;
 }
 
 rtc::scoped_refptr<VideoFrameBuffer> WrappedI420Buffer::NativeToI420Buffer() {
   RTC_NOTREACHED();
   return nullptr;
 }
 
 }  // namespace webrtc