arc: enable use_new_wrapper_types for notifications.mojom

ui/arc/notification/arc_notification_manager_unittest.cc

Index: ui/arc/notification/arc_notification_manager_unittest.cc
diff --git a/ui/arc/notification/arc_notification_manager_unittest.cc b/ui/arc/notification/arc_notification_manager_unittest.cc
index e72d133150deb49244a0d340d5ab7e950c1c042f..e77ddd0711d8eb7220d1803845a7745806e61ac1 100644
--- a/ui/arc/notification/arc_notification_manager_unittest.cc
+++ b/ui/arc/notification/arc_notification_manager_unittest.cc
@@ -100,7 +100,7 @@ class ArcNotificationManagerTest : public testing::Test {
     data->message = "MESSAGE";
 
     std::vector<unsigned char> icon_data;
-    data->icon_data.Swap(&icon_data);
+    data->icon_data = icon_data;
 
     arc_notification_manager()->OnNotificationPosted(std::move(data));