Revert "no user dir"

This reverts commit f3a9068.

Author: UebelAndre

extensions/wasm_bindgen/private/wasm_bindgen_test_runner.rs

@@ -131,13 +131,12 @@ fn main() {
                 webdriver.to_string_lossy().to_string(),
             );
 
-            // let user_data_dir = undeclared_test_outputs.join("user_data_dir");
+            let user_data_dir = undeclared_test_outputs.join("user_data_dir");
 
             write_webdriver_for_browser(
                 &webdriver_json,
                 "goog:chromeOptions",
-                &Vec::new(),
-                // &vec![format!("user-data-dir={}", user_data_dir.display())],
+                &vec![format!("user-data-dir={}", user_data_dir.display())],
                 &browser,
                 &updated_webdriver_json,
             );