Migrate ArcBitmap to use typemapping

ui/arc/notification/arc_notification_manager.cc

Index: ui/arc/notification/arc_notification_manager.cc
diff --git a/ui/arc/notification/arc_notification_manager.cc b/ui/arc/notification/arc_notification_manager.cc
index 59be98a787d3d32796e5b068d8431788ba47c8e2..db7d114fe5b903a7814ea5f4e794b35a7c9eed31 100644
--- a/ui/arc/notification/arc_notification_manager.cc
+++ b/ui/arc/notification/arc_notification_manager.cc
@@ -88,7 +88,7 @@ void ArcNotificationManager::OnNotificationPosted(
     DCHECK(result.second);
     it = result.first;
   }
-  it->second->UpdateWithArcNotificationData(*data);
+  it->second->UpdateWithArcNotificationData(std::move(data));
 }
 
 void ArcNotificationManager::OnNotificationRemoved(const mojo::String& key) {