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

chrome/browser/chromeos/customization/customization_wallpaper_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/chromeos/customization/customization_wallpaper_downloader.h"
 
 #include <math.h>
 #include <algorithm>
 
 #include "base/files/file_util.h"
@@ skipping 68 matching lines @@
 }
 
 CustomizationWallpaperDownloader::~CustomizationWallpaperDownloader() {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 }
 
 void CustomizationWallpaperDownloader::StartRequest() {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   DCHECK(wallpaper_url_.is_valid());
 
-  url_fetcher_.reset(
-      net::URLFetcher::Create(wallpaper_url_, net::URLFetcher::GET, this));
+  url_fetcher_ =
+      net::URLFetcher::Create(wallpaper_url_, net::URLFetcher::GET, this);
   url_fetcher_->SetRequestContext(url_context_getter_.get());
   url_fetcher_->SetLoadFlags(net::LOAD_BYPASS_CACHE |
                              net::LOAD_DISABLE_CACHE |
                              net::LOAD_DO_NOT_SAVE_COOKIES |
                              net::LOAD_DO_NOT_SEND_COOKIES |
                              net::LOAD_DO_NOT_SEND_AUTH_DATA);
   base::SequencedWorkerPool* blocking_pool =
       content::BrowserThread::GetBlockingPool();
   url_fetcher_->SaveResponseToFileAtPath(
       wallpaper_temporary_file_,
@@ skipping 85 matching lines @@
   }
 }
 
 void CustomizationWallpaperDownloader::OnTemporaryFileRenamed(
     scoped_ptr<bool> success) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   on_wallpaper_fetch_completed_.Run(*success, wallpaper_url_);
 }
 
 }  //   namespace chromeos