Add VideoReader and VideoWriter interfaces.

remoting/protocol/rtp_reader.h

 // Copyright (c) 2010 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 REMOTING_PROTOCOL_RTP_READER_H_
 #define REMOTING_PROTOCOL_RTP_READER_H_
 
 #include "base/scoped_ptr.h"
 #include "remoting/protocol/rtp_utils.h"
 #include "remoting/protocol/socket_reader_base.h"
@@ skipping 10 matching lines @@
   int payload_size;
 };
 
 class RtpReader : public SocketReaderBase {
  public:
   RtpReader();
   ~RtpReader();
 
   // The OnMessageCallback is called whenever a new message is received.
   // Ownership of the message is passed the callback.
-  typedef Callback1<RtpPacket*>::Type OnMessageCallback;
+  typedef Callback1<const RtpPacket&>::Type OnMessageCallback;
 
   // Initialize the reader and start reading. Must be called on the thread
   // |socket| belongs to. The callback will be called when a new message is
   // received. RtpReader owns |on_message_callback|, doesn't own
   // |socket|.
   void Init(net::Socket* socket, OnMessageCallback* on_message_callback);
 
  protected:
   virtual void OnDataReceived(net::IOBuffer* buffer, int data_size);
 
  private:
   scoped_ptr<OnMessageCallback> on_message_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(RtpReader);
 };
 
 }  // namespace remoting
 
 
 #endif  // REMOTING_PROTOCOL_RTP_READER_H_