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diff --git a/catapult/third_party/polymer/components/shadycss/tests/module/make-element.js b/catapult/third_party/polymer/components/shadycss/tests/module/make-element.js
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+/**
+@license
+Copyright (c) 2016 The Polymer Project Authors. All rights reserved.
+This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
+The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
+The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
+Code distributed by Google as part of the polymer project is also
+subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
+*/
+
+/*
+A simple webcomponents helper
+*/
+'use strict';
+
+window.makeElement = (name, connectedCallback) => {
+  let template = document.querySelector(`template#${name}`);
+  if (template && window.ShadyCSS) {
+    window.ShadyCSS.prepareTemplate(template, name);
+  }
+  window.customElements.define(name, class extends window.HTMLElement {
+    connectedCallback() {
+      window.ShadyCSS && window.ShadyCSS.styleElement(this);
+      if (!this.shadowRoot) {
+        this.attachShadow({mode: 'open'});
+        if (template) {
+          this.shadowRoot.appendChild(template.content.cloneNode(true));
+        }
+      }
+      if (connectedCallback) {
+        connectedCallback.call(this);
+      }
+    }
+  });
+};