history: more VoiceOver enhancements.

chrome/browser/resources/history/other_devices.js

Index: chrome/browser/resources/history/other_devices.js
diff --git a/chrome/browser/resources/history/other_devices.js b/chrome/browser/resources/history/other_devices.js
index 3043b213bcb6712b7ecad61c3d149dfb83f6cb46..427d9f5e1f062590196a69c4976e765c823b5418 100644
--- a/chrome/browser/resources/history/other_devices.js
+++ b/chrome/browser/resources/history/other_devices.js
@@ -189,6 +189,7 @@ Device.prototype.getDOMNode = function(maxNumTabs, row) {
   var dropDownButton = new cr.ui.ContextMenuButton;
   dropDownButton.tabIndex = 0;
   dropDownButton.classList.add('drop-down');
+  dropDownButton.title = loadTimeData.getString('actionMenuDescription');
   dropDownButton.addEventListener('mousedown', function(event) {
       handleDropDownFocus(event);
       // Mousedown handling of cr.ui.MenuButton.handleEvent calls
@@ -242,7 +243,7 @@ Device.prototype.setSearchText = function(searchText) {
  * @private
  */
 Device.prototype.createSessionContents_ = function(maxNumTabs) {
-  var contents = createElementWithClassName('div', 'device-contents');
+  var contents = createElementWithClassName('ol', 'device-contents');
 
   var sessionTag = this.session_.tag;
   var numTabsShown = 0;