Stop refcounting URLRequestContext.

net/proxy/proxy_script_fetcher_impl.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_PROXY_SCRIPT_FETCHER_IMPL_H_
 #define NET_PROXY_PROXY_SCRIPT_FETCHER_IMPL_H_
 #pragma once
 
 #include <string>
 
@@ skipping 67 matching lines @@
   void ResetCurRequestState();
 
   // Callback for time-out task of request with id |id|.
   void OnTimeout(int id);
 
   // Factory for creating the time-out task. This takes care of revoking
   // outstanding tasks when |this| is deleted.
   base::WeakPtrFactory<ProxyScriptFetcherImpl> weak_factory_;
 
   // The context used for making network requests.
-  URLRequestContext* url_request_context_;
+  URLRequestContext* const url_request_context_;
 
   // Buffer that URLRequest writes into.
   scoped_refptr<IOBuffer> buf_;
 
   // The next ID to use for |cur_request_| (monotonically increasing).
   int next_id_;
 
   // The current (in progress) request, or NULL.
   scoped_ptr<URLRequest> cur_request_;
 
@@ skipping 20 matching lines @@
 
   // The maximum amount of time to wait for download to complete.
   base::TimeDelta max_duration_;
 
   DISALLOW_COPY_AND_ASSIGN(ProxyScriptFetcherImpl);
 };
 
 }  // namespace net
 
 #endif  // NET_PROXY_PROXY_SCRIPT_FETCHER_IMPL_H_