Fix a "managedUser" reference that was re-renamed.

chrome/browser/resources/options/manage_profile_overlay.js

Index: chrome/browser/resources/options/manage_profile_overlay.js
diff --git a/chrome/browser/resources/options/manage_profile_overlay.js b/chrome/browser/resources/options/manage_profile_overlay.js
index aaa36441bab345ed3ae1e93dea2cf33706abb742..a1bfab6a7ba80a70599a442e33aad3d265f350f4 100644
--- a/chrome/browser/resources/options/manage_profile_overlay.js
+++ b/chrome/browser/resources/options/manage_profile_overlay.js
@@ -117,7 +117,7 @@ cr.define('options', function() {
         // is shown again when the import overlay loads. TODO(akuegel): Remove
         // this temporary fix when crbug/246304 is resolved.
         $('import-existing-supervised-user-link').hidden = true;
-        PageManager.showPageByName('managedUserImport');
+        PageManager.showPageByName('supervisedUserImport');
       };
     },