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diff --git a/media/base/video_util.h b/media/base/video_util.h
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+++ b/media/base/video_util.h
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+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MEDIA_BASE_VIDEO_UTIL_H_
+#define MEDIA_BASE_VIDEO_UTIL_H_
+
+#include "base/basictypes.h"
+
+namespace media {
+
+class VideoFrame;
+
+// Copies a plane of YUV source into a VideoFrame object, taking into account
+// source and destinations dimensions.
+//
+// NOTE: rows is *not* the same as height!
+void CopyYPlane(const uint8* source, int stride, int rows, VideoFrame* frame);
+void CopyUPlane(const uint8* source, int stride, int rows, VideoFrame* frame);
+void CopyVPlane(const uint8* source, int stride, int rows, VideoFrame* frame);
+
+}  // namespace media
+
+#endif  // MEDIA_BASE_VIDEO_UTIL_H_