Update I420Buffer to new VideoFrameBuffer interface

webrtc/api/video/i420_buffer.h

 /*
  *  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.
  */
 
@@ skipping 12 matching lines @@
 class I420Buffer : public I420BufferInterface {
  public:
   static rtc::scoped_refptr<I420Buffer> Create(int width, int height);
   static rtc::scoped_refptr<I420Buffer> Create(int width,
                                                int height,
                                                int stride_y,
                                                int stride_u,
                                                int stride_v);
 
   // Create a new buffer and copy the pixel data.
-  static rtc::scoped_refptr<I420Buffer> Copy(const VideoFrameBuffer& buffer);
+  static rtc::scoped_refptr<I420Buffer> Copy(const I420BufferInterface& buffer);
+  // Deprecated.
+  static rtc::scoped_refptr<I420Buffer> Copy(const VideoFrameBuffer& buffer) {
+    return Copy(*buffer.GetI420());
+  }
 
   static rtc::scoped_refptr<I420Buffer> Copy(
       int width, int height,
       const uint8_t* data_y, int stride_y,
       const uint8_t* data_u, int stride_u,
       const uint8_t* data_v, int stride_v);
 
   // Returns a rotated copy of |src|.
+  static rtc::scoped_refptr<I420Buffer> Rotate(const I420BufferInterface& src,
+                                               VideoRotation rotation);
+  // Deprecated.
   static rtc::scoped_refptr<I420Buffer> Rotate(const VideoFrameBuffer& src,
-                                               VideoRotation rotation);
+                                               VideoRotation rotation) {
+    return Rotate(*src.GetI420(), rotation);
+  }
 
   // Sets the buffer to all black.
   static void SetBlack(I420Buffer* buffer);
 
   // Sets all three planes to all zeros. Used to work around for
   // quirks in memory checkers
   // (https://bugs.chromium.org/p/libyuv/issues/detail?id=377) and
   // ffmpeg (http://crbug.com/390941).
   // TODO(nisse): Deprecated. Should be deleted if/when those issues
   // are resolved in a better way. Or in the mean time, use SetBlack.
   void InitializeData();
 
   int width() const override;
   int height() const override;
   const uint8_t* DataY() const override;
   const uint8_t* DataU() const override;
   const uint8_t* DataV() const override;
 
   int StrideY() const override;
   int StrideU() const override;
   int StrideV() const override;
 
   uint8_t* MutableDataY();
   uint8_t* MutableDataU();
   uint8_t* MutableDataV();
 
   // Scale the cropped area of |src| to the size of |this| buffer, and
   // write the result into |this|.
-  void CropAndScaleFrom(const VideoFrameBuffer& src,
+  void CropAndScaleFrom(const I420BufferInterface& src,
                         int offset_x,
                         int offset_y,
                         int crop_width,
                         int crop_height);
 
   // The common case of a center crop, when needed to adjust the
   // aspect ratio without distorting the image.
-  void CropAndScaleFrom(const VideoFrameBuffer& src);
+  void CropAndScaleFrom(const I420BufferInterface& src);
 
   // Scale all of |src| to the size of |this| buffer, with no cropping.
-  void ScaleFrom(const VideoFrameBuffer& src);
+  void ScaleFrom(const I420BufferInterface& src);
 
  protected:
   I420Buffer(int width, int height);
   I420Buffer(int width, int height, int stride_y, int stride_u, int stride_v);
 
   ~I420Buffer() override;
 
  private:
   const int width_;
   const int height_;
   const int stride_y_;
   const int stride_u_;
   const int stride_v_;
   const std::unique_ptr<uint8_t, AlignedFreeDeleter> data_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_API_VIDEO_I420_BUFFER_H_