[DevTools] Ability to emulate touch or user agent, even when device emulation is turned off.

Source/devtools/front_end/ui/SettingsUI.js

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 150 matching lines @@
     }
 
     return p;
 }
 
 /**
  * @param {string} label
  * @param {!WebInspector.Setting} setting
  * @param {number=} maxLength
  * @param {string=} width
- * @param {!WebInspector.Setting=} toggleSetting
  * @param {string=} defaultText
  */
-WebInspector.SettingsUI.createSettingLabel = function(label, setting, maxLength, width, toggleSetting, defaultText)
+WebInspector.SettingsUI.createSettingLabel = function(label, setting, maxLength, width, defaultText)
 {
     var p = document.createElement("p");
     var labelElement = p.createChild("span");
     labelElement.textContent = label;
     if (label)
         labelElement.style.marginRight = "5px";
     var spanElement = p.createChild("span");
     spanElement.textContent = setting.get();
     if (width)
         p.style.width = width;
 
-    if (toggleSetting)
-        toggleSetting.addChangeListener(onSettingChange);
     setting.addChangeListener(onSettingChange);
     onSettingChange();
 
     function onSettingChange()
     {
-        var text = toggleSetting && !toggleSetting.get() ? (defaultText || "") : setting.get();
+        var text = setting.get() || defaultText;
         spanElement.title = text;
         if (maxLength && text.length > maxLength)
             text = text.substring(0, maxLength - 2) + "...";
         spanElement.textContent = text;
     }
 
     return p;
 }
 
 WebInspector.SettingsUI.createCustomSetting = function(name, element)
@@ skipping 77 matching lines @@
 
 WebInspector.UISettingDelegate.prototype = {
     /**
      * @return {?Element}
      */
     settingElement: function()
     {
         return null;
     }
 }