Add VideoPacket struct for video packets. Refactor Decode interface to use it.

remoting/protocol/protobuf_video_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_PROTOBUF_VIDEO_READER_H_
 #define REMOTING_PROTOCOL_PROTOBUF_VIDEO_READER_H_
 
+#include "remoting/proto/video.pb.h"
 #include "remoting/protocol/message_reader.h"
 #include "remoting/protocol/video_reader.h"
 
 namespace remoting {
 namespace protocol {
 
 class Session;
 
 class ProtobufVideoReader : public VideoReader {
  public:
-  ProtobufVideoReader();
+  ProtobufVideoReader(VideoPacketFormat::Encoding encoding);
   virtual ~ProtobufVideoReader();
 
   // VideoReader interface.
   virtual void Init(protocol::Session* session, VideoStub* video_stub);
   virtual void Close();
 
  private:
   void OnNewData(VideoPacket* packet);
 
+  VideoPacketFormat::Encoding encoding_;
+
   MessageReader reader_;
 
   // The stub that processes all received packets.
   VideoStub* video_stub_;
 
   DISALLOW_COPY_AND_ASSIGN(ProtobufVideoReader);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_PROTOBUF_VIDEO_READER_H_