Added base template for config ui.

appengine/config_service/ui/bower_components/webcomponentsjs/tests/imports/element-import.html

Index: appengine/config_service/ui/bower_components/webcomponentsjs/tests/imports/element-import.html
diff --git a/appengine/config_service/ui/bower_components/webcomponentsjs/tests/imports/element-import.html b/appengine/config_service/ui/bower_components/webcomponentsjs/tests/imports/element-import.html
new file mode 100644
index 0000000000000000000000000000000000000000..6b8935f2f862525504e2d03dfa0f200df30f1cff
--- /dev/null
+++ b/appengine/config_service/ui/bower_components/webcomponentsjs/tests/imports/element-import.html
@@ -0,0 +1,20 @@
+<!--
+@license
+Copyright (c) 2014 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
+-->
+<x-foo></x-foo>
+<script>
+(function() {
+  class XFoo extends HTMLElement {
+    connectedCallback() {
+      this.isCreated = true;
+    }
+  }
+  window.customElements.define('x-foo', XFoo);
+})();
+</script>