Pass Client pointer in Initialize() for VDA/VEA

media/video/video_decode_accelerator.h

 // Copyright (c) 2012 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_VIDEO_VIDEO_DECODE_ACCELERATOR_H_
 #define MEDIA_VIDEO_VIDEO_DECODE_ACCELERATOR_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 68 matching lines @@
 
    protected:
     virtual ~Client() {}
   };
 
   // Video decoder functions.
 
   // Initializes the video decoder with specific configuration.
   // Parameters:
   //  |profile| is the video stream's format profile.
+  //  |client| is the client of this video decoder.  The provided pointer must
+  //  be valid until Destroy() is called.
   //
   // Returns true when command successfully accepted. Otherwise false.
-  virtual bool Initialize(VideoCodecProfile profile) = 0;
+  virtual bool Initialize(VideoCodecProfile profile, Client* client) = 0;
 
   // Decodes given bitstream buffer that contains at most one frame. Once
   // decoder is done with processing |bitstream_buffer| it will call
   // NotifyEndOfBitstreamBuffer() with the bitstream buffer id.
   // Parameters:
   //  |bitstream_buffer| is the input bitstream that is sent for decoding.
   virtual void Decode(const BitstreamBuffer& bitstream_buffer) = 0;
 
   // Assigns a set of texture-backed picture buffers to the video decoder.
   //
@@ skipping 29 matching lines @@
   // component is freed.  This call may asynchornously free system resources,
   // but its client-visible effects are synchronous.  After this method returns
   // no more callbacks will be made on the client.  Deletes |this|
   // unconditionally, so make sure to drop all pointers to it!
   virtual void Destroy() = 0;
 };
 
 }  // namespace media
 
 #endif  // MEDIA_VIDEO_VIDEO_DECODE_ACCELERATOR_H_