| Index: webrtc/common_video/include/video_frame_buffer.h
 | 
| diff --git a/webrtc/common_video/include/video_frame_buffer.h b/webrtc/common_video/include/video_frame_buffer.h
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| index 270f2d5a2d036b20f09fff61bc3bdba160b7b8e0..9cf57a43591b1da66f82ed9d59ffde5794fdc212 100644
 | 
| --- a/webrtc/common_video/include/video_frame_buffer.h
 | 
| +++ b/webrtc/common_video/include/video_frame_buffer.h
 | 
| @@ -81,6 +81,10 @@ class I420Buffer : public VideoFrameBuffer {
 | 
|    void* native_handle() const override;
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|    rtc::scoped_refptr<VideoFrameBuffer> NativeToI420Buffer() override;
 | 
|  
 | 
| +  // Create a new buffer and copy the pixel data.
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| +  static rtc::scoped_refptr<I420Buffer> Copy(
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| +      const rtc::scoped_refptr<VideoFrameBuffer>& buffer);
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| +
 | 
|   protected:
 | 
|    ~I420Buffer() override;
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|  
 | 
| 
 |