Use MessageLoopProxy for network message loop.

remoting/protocol/rtp_writer.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_WRITER_H_
 #define REMOTING_PROTOCOL_RTP_WRITER_H_
 
 #include "net/socket/socket.h"
 #include "remoting/protocol/buffered_socket_writer.h"
 #include "remoting/protocol/rtp_utils.h"
 
 namespace remoting {
 
 class CompoundBuffer;
 
 namespace protocol {
 
 class RtpWriter {
  public:
-  RtpWriter();
+  RtpWriter(base::MessageLoopProxy* message_loop);
   virtual ~RtpWriter();
 
   // Initializes the writer. Must be called on the thread the socket
   // belongs to.
   void Init(net::Socket* socket);
   void Close();
 
   // Sends next packet. The packet is mutated by
   void SendPacket(uint32 timestamp, bool marker,
                   const Vp8Descriptor& vp8_descriptor,
                   const CompoundBuffer& payload);
 
   // Returns number of packets queued in the buffer.
   int GetPendingPackets();
 
  private:
   uint32 last_packet_number_;
 
   scoped_refptr<BufferedDatagramWriter> buffered_rtp_writer_;
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_RTP_WRITER_H_