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

chrome/browser/apps/drive/drive_app_converter.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/apps/drive/drive_app_converter.h"
 
 #include <algorithm>
 #include <set>
 
 #include "base/callback_helpers.h"
@@ skipping 26 matching lines @@
  public:
   IconFetcher(DriveAppConverter* converter,
               const GURL& icon_url,
               int expected_size)
       : converter_(converter),
         icon_url_(icon_url),
         expected_size_(expected_size) {}
   ~IconFetcher() override {}
 
   void Start() {
-    fetcher_.reset(
-        net::URLFetcher::Create(icon_url_, net::URLFetcher::GET, this));
+    fetcher_ = net::URLFetcher::Create(icon_url_, net::URLFetcher::GET, this);
     fetcher_->SetRequestContext(converter_->profile_->GetRequestContext());
     fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SAVE_COOKIES);
     fetcher_->Start();
   }
 
   const GURL& icon_url() const { return icon_url_; }
   const SkBitmap& icon() const { return icon_; }
 
  private:
   // net::URLFetcherDelegate overrides:
@@ skipping 136 matching lines @@
     return;
   }
 
   extension_ = crx_installer_->extension();
   is_new_install_ = success && crx_installer_->current_version().empty();
   PostInstallCleanUp();
 
   base::ResetAndReturn(&finished_callback_).Run(this, success);
   // |finished_callback_| could delete this.
 }