Refactoring: Hide VideoCodec.codecSpecific as "private"

webrtc/video_decoder.h

 /*
  *  Copyright (c) 2014 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_VIDEO_DECODER_H_
 #define WEBRTC_VIDEO_DECODER_H_
 
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "webrtc/common_types.h"
 #include "webrtc/typedefs.h"
 #include "webrtc/video_frame.h"
 
 namespace webrtc {
 
 class RTPFragmentationHeader;
 // TODO(pbos): Expose these through a public (root) header or change these APIs.
 struct CodecSpecificInfo;
-struct VideoCodec;
+class VideoCodec;
 
 class DecodedImageCallback {
  public:
   virtual ~DecodedImageCallback() {}
 
   virtual int32_t Decoded(VideoFrame& decodedImage) = 0;
   // Provides an alternative interface that allows the decoder to specify the
   // decode time excluding waiting time for any previous pending frame to
   // return. This is necessary for breaking positive feedback in the delay
   // estimation when the decoder has a single output buffer.
@@ skipping 102 matching lines @@
       DecodedImageCallback* callback) override;
 
   int32_t Release() override;
 
   const char* ImplementationName() const override;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_VIDEO_DECODER_H_