base::Bind: Convert StreamSocket::Connect.

net/socket/socks_client_socket.h

Index: net/socket/socks_client_socket.h
diff --git a/net/socket/socks_client_socket.h b/net/socket/socks_client_socket.h
index eb74a5e3386ee7f93144e64cdcd0207ac622ba75..c7089af9d19de114df73285d614f2b8718a98ac4 100644
--- a/net/socket/socks_client_socket.h
+++ b/net/socket/socks_client_socket.h
@@ -49,6 +49,7 @@ class NET_EXPORT_PRIVATE SOCKSClientSocket : public StreamSocket {
 
   // Does the SOCKS handshake and completes the protocol.
   virtual int Connect(OldCompletionCallback* callback) OVERRIDE;
+  virtual int Connect(const net::CompletionCallback& callback) OVERRIDE;
   virtual void Disconnect() OVERRIDE;
   virtual bool IsConnected() const OVERRIDE;
   virtual bool IsConnectedAndIdle() const OVERRIDE;
@@ -110,7 +111,8 @@ class NET_EXPORT_PRIVATE SOCKSClientSocket : public StreamSocket {
   State next_state_;
 
   // Stores the callback to the layer above, called on completing Connect().
-  OldCompletionCallback* user_callback_;
+  OldCompletionCallback* old_user_callback_;
+  CompletionCallback user_callback_;
 
   // This IOBuffer is used by the class to read and write
   // SOCKS handshake data. The length contains the expected size to