Convert //chrome/browser/sync from scoped_ptr to std::unique_ptr

chrome/browser/sync/sessions/notification_service_sessions_router.h

 // 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.
 
 #ifndef CHROME_BROWSER_SYNC_SESSIONS_NOTIFICATION_SERVICE_SESSIONS_ROUTER_H_
 #define CHROME_BROWSER_SYNC_SESSIONS_NOTIFICATION_SERVICE_SESSIONS_ROUTER_H_
 
 #include <set>
 
 #include "base/callback_list.h"
@@ skipping 53 matching lines @@
   // and vice versa.
   void OnFaviconsChanged(const std::set<GURL>& page_urls,
                          const GURL& icon_url);
 
   LocalSessionEventHandler* handler_;
   content::NotificationRegistrar registrar_;
   Profile* const profile_;
   sync_sessions::SyncSessionsClient* const sessions_client_;
   syncer::SyncableService::StartSyncFlare flare_;
 
-  scoped_ptr<base::CallbackList<void(const std::set<GURL>&,
-                                     const GURL&)>::Subscription>
+  std::unique_ptr<base::CallbackList<void(const std::set<GURL>&,
+                                          const GURL&)>::Subscription>
       favicon_changed_subscription_;
 
   base::WeakPtrFactory<NotificationServiceSessionsRouter> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NotificationServiceSessionsRouter);
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_SESSIONS_NOTIFICATION_SERVICE_SESSIONS_ROUTER_H_