Adjust URLFetcher::Create API so that object is returned as scoped_ptr.

chrome/browser/extensions/install_signer.cc

 // Copyright 2013 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 "chrome/browser/extensions/install_signer.h"
 
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
@@ skipping 351 matching lines @@
 
   if (!context_getter_) {
     ReportErrorViaCallback();
     return;
   }
 
   base::Closure closure = base::Bind(&InstallSigner::ParseFetchResponse,
                                      base::Unretained(this));
 
   delegate_.reset(new FetcherDelegate(closure));
-  url_fetcher_.reset(net::URLFetcher::Create(
-      GetBackendUrl(), net::URLFetcher::POST, delegate_.get()));
+  url_fetcher_ = net::URLFetcher::Create(GetBackendUrl(), net::URLFetcher::POST,
+                                         delegate_.get());
   url_fetcher_->SetRequestContext(context_getter_);
 
   // The request protocol is JSON of the form:
   // {
   //   "protocol_version": "1",
   //   "hash": "<base64-encoded hash value here>",
   //   "ids": [ "<id1>", "id2" ]
   // }
   base::DictionaryValue dictionary;
   dictionary.SetInteger(kProtocolVersionKey, 1);
@@ skipping 117 matching lines @@
     if (!verified)
       result.reset();
   }
 
   if (!callback_.is_null())
     callback_.Run(result.Pass());
 }
 
 
 }  // namespace extensions