Don't depend on MessageLoopProxy in remoting protocol code.

remoting/protocol/protobuf_video_writer.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 REMOTING_PROTOCOL_PROTOBUF_VIDEO_WRITER_H_
 #define REMOTING_PROTOCOL_PROTOBUF_VIDEO_WRITER_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "remoting/protocol/buffered_socket_writer.h"
 #include "remoting/protocol/video_writer.h"
 
-namespace base {
-class MessageLoopProxy;
-}  // namespace base
-
 namespace net {
 class StreamSocket;
 }  // namespace net
 
 namespace remoting {
 namespace protocol {
 
 class Session;
 
 class ProtobufVideoWriter : public VideoWriter {
  public:
-  ProtobufVideoWriter(base::MessageLoopProxy* message_loop);
+  ProtobufVideoWriter();
   virtual ~ProtobufVideoWriter();
 
   // VideoWriter interface.
   virtual void Init(protocol::Session* session,
                     const InitializedCallback& callback) OVERRIDE;
   virtual void Close() OVERRIDE;
   virtual bool is_connected() OVERRIDE;
 
   // VideoStub interface.
   virtual void ProcessVideoPacket(scoped_ptr<VideoPacket> packet,
@@ skipping 12 matching lines @@
 
   BufferedSocketWriter buffered_writer_;
 
   DISALLOW_COPY_AND_ASSIGN(ProtobufVideoWriter);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_PROTOBUF_VIDEO_WRITER_H_