Add back getCurrentActivityType

atom/browser/api/atom_api_app.cc

@@ -527,6 +527,8 @@ void App::BuildPrototype(
       .SetMethod("show", base::Bind(&Browser::Show, browser))
       .SetMethod("setUserActivity",
                  base::Bind(&Browser::SetUserActivity, browser))
+      .SetMethod("getCurrentActivityType",
+                 base::Bind(&Browser::GetCurrentActivityType, browser))
       .SetMethod("getLoginItemStatus",
                  base::Bind(&Browser::GetLoginItemStatus, browser))
       .SetMethod("setAsLoginItem",