Reference count ProxyService....

chrome/browser/net/resolve_proxy_msg_helper.h

 // Copyright (c) 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 CHROME_BROWSER_NET_RESOLVE_PROXY_MSG_HELPER_
 #define CHROME_BROWSER_NET_RESOLVE_PROXY_MSG_HELPER_
 
 #include <deque>
 #include <string>
 
+#include "base/ref_counted.h"
 #include "googleurl/src/gurl.h"
 #include "ipc/ipc_message.h"
 #include "net/base/completion_callback.h"
 #include "net/proxy/proxy_service.h"
 
 // This class holds the common logic used to respond to the messages:
 // {PluginProcessHostMsg_ResolveProxy, ViewHostMsg_ResolveProxy}.
 //
 // This involves kicking off a ProxyResolve request on the IO thread using
 // the specified proxy service.
@@ skipping 56 matching lines @@
      GURL url;
 
      // Data to pass back to the delegate on completion (we own it until then).
      IPC::Message* reply_msg;
 
      // Handle for cancelling the current request if it has started (else NULL).
      net::ProxyService::PacRequest* pac_req;
   };
 
   // Members for the current outstanding proxy request.
-  net::ProxyService* proxy_service_;
+  scoped_refptr<net::ProxyService> proxy_service_;
   net::CompletionCallbackImpl<ResolveProxyMsgHelper> callback_;
   net::ProxyInfo proxy_info_;
 
   // FIFO queue of pending requests. The first entry is always the current one.
   typedef std::deque<PendingRequest> PendingRequestList;
   PendingRequestList pending_requests_;
 
   Delegate* delegate_;
 
   // Specified by unit-tests, to use this proxy service in place of the
   // global one.
-  net::ProxyService* proxy_service_override_;
+  scoped_refptr<net::ProxyService> proxy_service_override_;
 };
 
 #endif  // CHROME_BROWSER_NET_RESOLVE_PROXY_MSG_HELPER_