MD Settings: CrOS: Focus elements on dialog close

chrome/browser/resources/settings/device_page/display.js

 // Copyright 2016 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.
 
 /**
  * @fileoverview
  * 'settings-display' is the settings subpage for display settings.
  */
 
 cr.define('settings.display', function() {
@@ skipping 416 matching lines @@
    * @param {!Event} e
    * @private
    */
   onOverscanTap_: function(e) {
     e.preventDefault();
     this.overscanDisplayId = this.selectedDisplay.id;
     this.showOverscanDialog_(true);
   },
 
   /** @private */
+  onCloseOverscanDialog_: function() {
+    this.$$('#overscan button').focus();
+  },
+
+  /** @private */
   updateDisplayInfo_: function() {
     var displayIds = '';
     var primaryDisplay = undefined;
     var selectedDisplay = undefined;
     for (var i = 0; i < this.displays.length; ++i) {
       var display = this.displays[i];
       if (displayIds)
         displayIds += ',';
       displayIds += display.id;
       if (display.isPrimary && !primaryDisplay)
@@ skipping 11 matching lines @@
   },
 
   /** @private */
   setPropertiesCallback_: function() {
     if (chrome.runtime.lastError) {
       console.error(
           'setDisplayProperties Error: ' + chrome.runtime.lastError.message);
     }
   },
 });