base::Bind: Convert net/proxy.

net/proxy/dhcp_proxy_script_fetcher.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_PROXY_DHCP_SCRIPT_FETCHER_H_
 #define NET_PROXY_DHCP_SCRIPT_FETCHER_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
@@ skipping 40 matching lines @@
   //      ERR_TIMED_OUT         -- fetch took too long to complete.
   //      ERR_FILE_TOO_BIG      -- response body was too large.
   //      ERR_PAC_STATUS_NOT_OK -- script failed to download.
   //      ERR_NOT_IMPLEMENTED   -- script required authentication.
   //
   // If the request is cancelled (either using the "Cancel()" method or by
   // deleting |this|), then no callback is invoked.
   //
   // Only one fetch is allowed to be outstanding at a time.
   virtual int Fetch(string16* utf16_text,
-                    OldCompletionCallback* callback) = 0;
+                    const CompletionCallback& callback) = 0;
 
   // Aborts the in-progress fetch (if any).
   virtual void Cancel() = 0;
 
   // After successful completion of |Fetch()|, this will return the URL
   // retrieved from DHCP.  It is reset if/when |Fetch()| is called again.
   virtual const GURL& GetPacURL() const = 0;
 
   // Intended for unit tests only, so they can test that factories return
   // the right types under given circumstances.
   virtual std::string GetFetcherName() const;
 
  protected:
   DhcpProxyScriptFetcher();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DhcpProxyScriptFetcher);
 };
 
 // A do-nothing retriever, always returns synchronously with
 // ERR_NOT_IMPLEMENTED result and empty text.
 class NET_EXPORT_PRIVATE DoNothingDhcpProxyScriptFetcher
     : public DhcpProxyScriptFetcher {
  public:
   DoNothingDhcpProxyScriptFetcher();
   virtual ~DoNothingDhcpProxyScriptFetcher();
 
   virtual int Fetch(string16* utf16_text,
-                    OldCompletionCallback* callback) OVERRIDE;
+                    const CompletionCallback& callback) OVERRIDE;
   virtual void Cancel() OVERRIDE;
   virtual const GURL& GetPacURL() const OVERRIDE;
  private:
   GURL gurl_;
   DISALLOW_COPY_AND_ASSIGN(DoNothingDhcpProxyScriptFetcher);
 };
 
 }  // namespace net
 
 #endif  // NET_PROXY_DHCP_SCRIPT_FETCHER_H_