Extend the use of IOBuffers to the code underneath...

net/base/tcp_client_socket_libevent.h

 // Copyright (c) 2006-2009 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_BASE_TCP_CLIENT_SOCKET_LIBEVENT_H_
 #define NET_BASE_TCP_CLIENT_SOCKET_LIBEVENT_H_
 
 #include <sys/socket.h>  // for struct sockaddr
 
 #include "base/message_loop.h"
@@ skipping 18 matching lines @@
 
   // ClientSocket methods:
   virtual int Connect(CompletionCallback* callback);
   virtual void Disconnect();
   virtual bool IsConnected() const;
   virtual bool IsConnectedAndIdle() const;
 
   // Socket methods:
   // Multiple outstanding requests are not supported.
   // Full duplex mode (reading and writing at the same time) is supported
-  virtual int Read(char* buf, int buf_len, CompletionCallback* callback);
-  virtual int Write(const char* buf, int buf_len, CompletionCallback* callback);
+  virtual int Read(IOBuffer* buf, int buf_len, CompletionCallback* callback);
+  virtual int Write(IOBuffer* buf, int buf_len, CompletionCallback* callback);
 
   // Identical to posix system call of same name
   // Needed by ssl_client_socket_nss
   virtual int GetPeerName(struct sockaddr *name, socklen_t *namelen);
 
  private:
   // Called by MessagePumpLibevent when the socket is ready to do I/O
   void OnFileCanReadWithoutBlocking(int fd);
   void OnFileCanWriteWithoutBlocking(int fd);
 
@@ skipping 13 matching lines @@
   // Where we are in above list, or NULL if all addrinfos have been tried.
   const struct addrinfo* current_ai_;
 
   // Whether we're currently waiting for connect() to complete
   bool waiting_connect_;
 
   // The socket's libevent wrapper
   MessageLoopForIO::FileDescriptorWatcher socket_watcher_;
 
   // The buffer used by OnSocketReady to retry Read requests
-  char* read_buf_;
+  scoped_refptr<IOBuffer> read_buf_;
   int read_buf_len_;
 
   // The buffer used by OnSocketReady to retry Write requests
-  const char* write_buf_;
+  scoped_refptr<IOBuffer> write_buf_;
   int write_buf_len_;
 
   // External callback; called when read is complete.
   CompletionCallback* read_callback_;
 
   // External callback; called when write is complete.
   CompletionCallback* write_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(TCPClientSocketLibevent);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_TCP_CLIENT_SOCKET_LIBEVENT_H_