Fix enable a11y tests for History and fix failures

chrome/browser/resources/history/history.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 <include src="../uber/uber_utils.js">
 <include src="history_focus_manager.js">
 
 ///////////////////////////////////////////////////////////////////////////////
 // Globals:
 /** @const */ var RESULTS_PER_PAGE = 150;
@@ skipping 1274 matching lines @@
   var siteDomainRow = siteDomainWrapper.appendChild(
       createElementWithClassName('div', 'site-domain-row'));
 
   if (this.model_.editingEntriesAllowed) {
     var siteDomainCheckbox =
         createElementWithClassName('input', 'domain-checkbox');
 
     siteDomainCheckbox.type = 'checkbox';
     siteDomainCheckbox.addEventListener('click', domainCheckboxClicked);
     siteDomainCheckbox.domain_ = domain;
+    siteDomainCheckbox.setAttribute('aria-label', domain);
     siteDomainRow.appendChild(siteDomainCheckbox);
   }
 
   var siteArrow = siteDomainRow.appendChild(
       createElementWithClassName('div', 'site-domain-arrow'));
   var siteDomain = siteDomainRow.appendChild(
       createElementWithClassName('div', 'site-domain'));
   var siteDomainLink = siteDomain.appendChild(
       createElementWithClassName('button', 'link-button'));
   siteDomainLink.addEventListener('click', function(e) { e.preventDefault(); });
@@ skipping 15 matching lines @@
         getFilteringStatusDOM(domainVisits[0].hostFilteringBehavior));
   }
 
   siteResults.appendChild(siteDomainWrapper);
   var resultsList = siteResults.appendChild(
       createElementWithClassName('ol', 'site-results'));
   resultsList.classList.add('grouped');
 
   // Collapse until it gets toggled.
   resultsList.style.height = 0;
+  resultsList.setAttribute('aria-hidden', 'true');
 
   // Add the results for each of the domain.
   var isMonthGroupedResult = this.getRangeInDays() == HistoryModel.Range.MONTH;
   for (var j = 0, visit; visit = domainVisits[j]; j++) {
     resultsList.appendChild(visit.getResultDOM({
       focusless: true,
       useMonthDate: isMonthGroupedResult,
     }));
     this.setVisitRendered_(visit);
   }
@@ skipping 334 matching lines @@
  * @param {Event} e The event with element |e.target| which was clicked on.
  * @private
  */
 HistoryView.prototype.toggleGroupedVisits_ = function(e) {
   var entry = findAncestorByClass(/** @type {Element} */(e.target),
                                   'site-entry');
   var innerResultList = entry.querySelector('.site-results');
 
   if (entry.classList.contains('expand')) {
     innerResultList.style.height = 0;
+    innerResultList.setAttribute('aria-hidden', 'true');
   } else {
+    innerResultList.setAttribute('aria-hidden', 'false');
     innerResultList.style.height = 'auto';
     // -webkit-transition does not work on height:auto elements so first set
     // the height to auto so that it is computed and then set it to the
     // computed value in pixels so the transition works properly.
     var height = innerResultList.clientHeight;
     innerResultList.style.height = 0;
     setTimeout(function() {
       innerResultList.style.height = height + 'px';
     }, 0);
   }
@@ skipping 558 matching lines @@
     historyView.reload();
 }
 
 // Add handlers to HTML elements.
 document.addEventListener('DOMContentLoaded', load);
 
 // This event lets us enable and disable menu items before the menu is shown.
 document.addEventListener('canExecute', function(e) {
   e.canExecute = true;
 });