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

webrtc/sdk/objc/Framework/Classes/avfoundationvideocapturer.h

 /*
  *  Copyright 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.
  */
 
 #ifndef WEBRTC_API_OBJC_AVFOUNDATION_VIDEO_CAPTURER_H_
 #define WEBRTC_API_OBJC_AVFOUNDATION_VIDEO_CAPTURER_H_
 
 #import <AVFoundation/AVFoundation.h>
 
+#include "webrtc/api/video/video_frame.h"
 #include "webrtc/common_video/include/i420_buffer_pool.h"
 #include "webrtc/media/base/videocapturer.h"
-#include "webrtc/video_frame.h"
 
 @class RTCAVFoundationVideoCapturerInternal;
 
 namespace rtc {
 class Thread;
 }  // namespace rtc
 
 namespace webrtc {
 
 class AVFoundationVideoCapturer : public cricket::VideoCapturer {
@@ skipping 30 matching lines @@
                            webrtc::VideoRotation rotation);
 
  private:
   RTCAVFoundationVideoCapturerInternal *_capturer;
   webrtc::I420BufferPool _buffer_pool;
 };  // AVFoundationVideoCapturer
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_API_OBJC_AVFOUNDATION_VIDEO_CAPTURER_H_