Fix WeakPtrFactory member ordering in chrome/browser/sync

chrome/browser/sync/sessions/notification_service_sessions_router.h

Index: chrome/browser/sync/sessions/notification_service_sessions_router.h
diff --git a/chrome/browser/sync/sessions/notification_service_sessions_router.h b/chrome/browser/sync/sessions/notification_service_sessions_router.h
index a873d24880f2835d2a028cb44ea568e2385c04e0..1ebd723ac8f850be8c448e778af97067ebb59d81 100644
--- a/chrome/browser/sync/sessions/notification_service_sessions_router.h
+++ b/chrome/browser/sync/sessions/notification_service_sessions_router.h
@@ -59,11 +59,12 @@ class NotificationServiceSessionsRouter
   content::NotificationRegistrar registrar_;
   Profile* const profile_;
   syncer::SyncableService::StartSyncFlare flare_;
-  base::WeakPtrFactory<NotificationServiceSessionsRouter> weak_ptr_factory_;
 
   scoped_ptr<base::CallbackList<void(const std::set<GURL>&)>::Subscription>
       favicon_changed_subscription_;
 
+  base::WeakPtrFactory<NotificationServiceSessionsRouter> weak_ptr_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(NotificationServiceSessionsRouter);
 };