message: Polymer dom flush only if `Polymer` exists
diff: @@ -54,8 +54,10 @@ var a11ySuiteExport;
  // instantiate fixture
  fixtureElement.create();
  + if (typeof Polymer !== 'undefined') {
  // Make sure lazy-loaded dom is ready (eg <template is='dom-repeat'>)
  Polymer.dom.flush();
  + }
  // If we have a beforeEach function, call it
  if (beforeEach) {
  