Add allocator interface for use by cdm_adapter

media/cdm/cdm_buffer.h

+// Copyright 2016 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_CDM_CDM_BUFFER_H_
+#define MEDIA_CDM_CDM_BUFFER_H_
+
+#include <stdint.h>
+
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "media/base/media_export.h"
+#include "media/base/video_frame.h"
+#include "media/cdm/api/content_decryption_module.h"
+#include "ui/gfx/geometry/size.h"
+
+namespace media {
+
+class VideoFrameImpl;
+
+class MEDIA_EXPORT CdmBuffer : public cdm::Buffer {
+ public:
+  // Create a VideoFrame object based on |video_frame| and |natural_size|.
+  // Returned VideoFrame should have a reference to the data contained in
+  // this CdmBuffer.
+  virtual scoped_refptr<VideoFrame> MakeVideoFrame(VideoFrameImpl* video_frame,
+                                                   gfx::Size natural_size) = 0;

[xhwang, 2016/02/09 18:27:32]

It's odd to have this function in this class. See my comment below please.

[jrummell, 2016/02/11 01:39:38]

Removed.

+
+ protected:
+  CdmBuffer();
+  ~CdmBuffer() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(CdmBuffer);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_CDM_CDM_BUFFER_H_