Revert 113699 - base::Bind: Convert Socket::Write.

net/spdy/spdy_proxy_client_socket.h

Index: net/spdy/spdy_proxy_client_socket.h
===================================================================
--- net/spdy/spdy_proxy_client_socket.h	(revision 113718)
+++ net/spdy/spdy_proxy_client_socket.h	(working copy)
@@ -84,9 +84,6 @@
   virtual int Write(IOBuffer* buf,
                     int buf_len,
                     OldCompletionCallback* callback) OVERRIDE;
-  virtual int Write(IOBuffer* buf,
-                    int buf_len,
-                    const CompletionCallback& callback) OVERRIDE;
   virtual bool SetReceiveBufferSize(int32 size) OVERRIDE;
   virtual bool SetSendBufferSize(int32 size) OVERRIDE;
   virtual int GetPeerAddress(AddressList* address) const OVERRIDE;
@@ -140,8 +137,7 @@
   OldCompletionCallback* old_read_callback_;
   CompletionCallback read_callback_;
   // Stores the callback to the layer above, called on completing Write().
-  OldCompletionCallback* old_write_callback_;
-  CompletionCallback write_callback_;
+  OldCompletionCallback* write_callback_;
 
   // CONNECT request and response.
   HttpRequestInfo request_;