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

chrome/browser/supervised_user/experimental/supervised_user_blacklist_downloader.cc

 // Copyright 2014 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/supervised_user/experimental/supervised_user_blacklist_downloader.h"
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
 #include "content/public/browser/browser_thread.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_status_code.h"
 #include "net/url_request/url_fetcher.h"
 #include "url/gurl.h"
 
 using content::BrowserThread;
 using net::URLFetcher;
 
 const int kNumRetries = 1;
 
 SupervisedUserBlacklistDownloader::SupervisedUserBlacklistDownloader(
     const GURL& url,
     const base::FilePath& path,
     net::URLRequestContextGetter* request_context,
     const DownloadFinishedCallback& callback)
     : callback_(callback),
-      fetcher_(URLFetcher::Create(url, URLFetcher::GET, this)),
+      fetcher_(URLFetcher::Create(url, URLFetcher::GET, this).Pass()),
       weak_ptr_factory_(this) {
   fetcher_->SetRequestContext(request_context);
   fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
                          net::LOAD_DO_NOT_SAVE_COOKIES);
   fetcher_->SetAutomaticallyRetryOnNetworkChanges(kNumRetries);
   fetcher_->SaveResponseToFileAtPath(
       path,
       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE));
 
   base::PostTaskAndReplyWithResult(
@@ skipping 32 matching lines @@
 }
 
 void SupervisedUserBlacklistDownloader::OnFileExistsCheckDone(bool exists) {
   if (exists) {
     // TODO(treib): Figure out a strategy for updating the file.
     callback_.Run(true);
   } else {
     fetcher_->Start();
   }
 }