Cleanup: Remove unneeded forward declarations from remoting.

remoting/protocol/buffered_socket_writer.h

 // Copyright (c) 2011 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_BUFFERED_SOCKET_WRITER_H_
 #define REMOTING_PROTOCOL_BUFFERED_SOCKET_WRITER_H_
 
 #include <list>
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/synchronization/lock.h"
 #include "net/base/io_buffer.h"
 #include "net/socket/socket.h"
 
-class Task;
-
 namespace base {
 class MessageLoopProxy;
 }  // namespace base
 
 namespace net {
 class Socket;
 }  // namespace net
 
 namespace remoting {
 namespace protocol {
@@ skipping 73 matching lines @@
 
   bool write_pending_;
 
   net::OldCompletionCallbackImpl<BufferedSocketWriterBase> written_callback_;
 
   bool closed_;
 };
 
 class BufferedSocketWriter : public BufferedSocketWriterBase {
  public:
-  BufferedSocketWriter(base::MessageLoopProxy* message_loop);
+  explicit BufferedSocketWriter(base::MessageLoopProxy* message_loop);
   virtual ~BufferedSocketWriter();
 
  protected:
   virtual void GetNextPacket_Locked(net::IOBuffer** buffer, int* size);
   virtual void AdvanceBufferPosition_Locked(int written);
   virtual void OnError_Locked(int result);
 
  private:
   scoped_refptr<net::DrainableIOBuffer> current_buf_;
 };
 
 class BufferedDatagramWriter : public BufferedSocketWriterBase {
  public:
-  BufferedDatagramWriter(base::MessageLoopProxy* message_loop);
+  explicit BufferedDatagramWriter(base::MessageLoopProxy* message_loop);
   virtual ~BufferedDatagramWriter();
 
  protected:
   virtual void GetNextPacket_Locked(net::IOBuffer** buffer, int* size);
   virtual void AdvanceBufferPosition_Locked(int written);
   virtual void OnError_Locked(int result);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_BUFFERED_SOCKET_WRITER_H_