DevTools: fix deepActiveElement and focus on Dialog when document blurs

third_party/WebKit/Source/devtools/front_end/emulation/DevicesSettingsTab.js

 // Copyright 2015 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.
 
 /**
  * @constructor
  * @extends {WebInspector.VBox}
  * @implements {WebInspector.ListWidget.Delegate}
  */
 WebInspector.DevicesSettingsTab = function()
@@ skipping 14 matching lines @@
     this._list = new WebInspector.ListWidget(this);
     this._list.registerRequiredCSS("emulation/devicesSettingsTab.css");
     this._list.element.classList.add("devices-list");
     this._list.show(this.containerElement);
 
     this._muteUpdate = false;
     this._emulatedDevicesList = WebInspector.EmulatedDevicesList.instance();
     this._emulatedDevicesList.addEventListener(WebInspector.EmulatedDevicesList.Events.CustomDevicesUpdated, this._devicesUpdated, this);
     this._emulatedDevicesList.addEventListener(WebInspector.EmulatedDevicesList.Events.StandardDevicesUpdated, this._devicesUpdated, this);
 
     this.setDefaultFocusedElement(this._addCustomButton);

[dgozman, 2016/06/24 17:53:51]

ditto

[luoe, 2016/06/24 20:41:53]

This could be safely removed as well.

 }
 
 WebInspector.DevicesSettingsTab.prototype = {
+    /**
+     * @override
+     * @return {!Element}
+     */
+    defaultFocusedElement: function()
+    {
+        return this.contentElement;
+    },
+
     wasShown: function()
     {
         WebInspector.VBox.prototype.wasShown.call(this);
         this._devicesUpdated();
     },
 
     _devicesUpdated: function()
     {
         if (this._muteUpdate)
             return;
@@ skipping 200 matching lines @@
          * @return {boolean}
          */
         function scaleValidator(item, index, input)
         {
             return WebInspector.DeviceModeModel.deviceScaleFactorValidator(input.value);
         }
     },
 
     __proto__: WebInspector.VBox.prototype
 }