Stop refcounting URLRequestContext.

net/proxy/proxy_script_fetcher_impl.cc

 // Copyright (c) 2012 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.
 
 #include "net/proxy/proxy_script_fetcher_impl.h"
 
 #include "base/compiler_specific.h"
 #include "base/i18n/icu_string_conversions.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
@@ skipping 277 matching lines @@
     cur_request_->GetCharset(&charset);
     ConvertResponseToUTF16(charset, bytes_read_so_far_, result_text_);
   } else {
     // On error, the caller expects empty string for bytes.
     result_text_->clear();
   }
 
   int result_code = result_code_;
   CompletionCallback callback = callback_;
 
-  // Hold a reference to the URLRequestContext to prevent re-entrancy from
-  // ~URLRequestContext.
-  scoped_refptr<const URLRequestContext> context(cur_request_->context());
   ResetCurRequestState();
 
   callback.Run(result_code);
 }
 
 void ProxyScriptFetcherImpl::ResetCurRequestState() {
   cur_request_.reset();
   cur_request_id_ = 0;
   callback_.Reset();
   result_code_ = OK;
   result_text_ = NULL;
 }
 
 void ProxyScriptFetcherImpl::OnTimeout(int id) {
   // Timeout tasks may outlive the URLRequest they reference. Make sure it
   // is still applicable.
   if (cur_request_id_ != id)
     return;
 
   DCHECK(cur_request_.get());
   result_code_ = ERR_TIMED_OUT;
   cur_request_->Cancel();
 }
 
 }  // namespace net