Missing removeEventListener() arg in assertions.js

chrome/test/data/extensions/api_test/messaging/externally_connectable/sites/assertions.js

Index: chrome/test/data/extensions/api_test/messaging/externally_connectable/sites/assertions.js
diff --git a/chrome/test/data/extensions/api_test/messaging/externally_connectable/sites/assertions.js b/chrome/test/data/extensions/api_test/messaging/externally_connectable/sites/assertions.js
index bdb6ecb8ae60e35e04d392d57ace9f767845e39a..3fab920e7ff29a110498a46aacf358c6666ab544 100644
--- a/chrome/test/data/extensions/api_test/messaging/externally_connectable/sites/assertions.js
+++ b/chrome/test/data/extensions/api_test/messaging/externally_connectable/sites/assertions.js
@@ -85,7 +85,7 @@ if (parent == window) {
   tabLocationHref = document.location.href;
 } else {
   window.addEventListener('message', function listener(event) {
-    window.removeEventListener(listener);
+    window.removeEventListener('message', listener);
     tabLocationHref = event.data;
   });
 }