base::Bind: Convert net/proxy.

net/socket_stream/socket_stream.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 NET_SOCKET_STREAM_SOCKET_STREAM_H_
 #define NET_SOCKET_STREAM_SOCKET_STREAM_H_
 #pragma once
 
 #include <deque>
 #include <map>
@@ skipping 318 matching lines @@
   int tunnel_response_headers_capacity_;
   int tunnel_response_headers_len_;
 
   scoped_ptr<SingleRequestHostResolver> resolver_;
   AddressList addresses_;
   scoped_ptr<StreamSocket> socket_;
 
   SSLConfig server_ssl_config_;
   SSLConfig proxy_ssl_config_;
 
-  const CompletionCallback io_callback_;
-  OldCompletionCallbackImpl<SocketStream> io_callback_old_;
+  CompletionCallback io_callback_;
 
   scoped_refptr<IOBuffer> read_buf_;
   int read_buf_size_;
 
   // Total amount of buffer (|write_buf_size_| - |write_buf_offset_| +
   // sum of size of |pending_write_bufs_|) should not exceed
   // |max_pending_send_allowed_|.
   // |write_buf_| holds requested data and |current_write_buf_| is used
   // for Write operation, that is, |current_write_buf_| is
   // |write_buf_| + |write_buf_offset_|.
   scoped_refptr<IOBuffer> write_buf_;
   scoped_refptr<DrainableIOBuffer> current_write_buf_;
   int write_buf_offset_;
   int write_buf_size_;
   PendingDataQueue pending_write_bufs_;
 
   bool closing_;
   bool server_closed_;
 
   scoped_ptr<SocketStreamMetrics> metrics_;
 
   DISALLOW_COPY_AND_ASSIGN(SocketStream);
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_STREAM_SOCKET_STREAM_H_