DOMUI: Use dispatchSimpleEvent instead of programatically clicking the checkbox

chrome/browser/resources/options/pref_ui.js

 // Copyright (c) 2011 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.
 
 cr.define('options', function() {
 
   var Preferences = options.Preferences;
   /////////////////////////////////////////////////////////////////////////////
   // PrefCheckbox class:
   // TODO(jhawkins): Refactor all this copy-pasted code!
@@ skipping 32 matching lines @@
 
             // Managed UI elements can only be disabled as a result of being
             // managed. They cannot be enabled as a result of a pref being
             // unmanaged.
             if (self.managed)
               self.disabled = true;
           });
 
       // Listen to user events.
       this.addEventListener(
-          'click',
+          'change',
           function(e) {
             var value = self.inverted_pref ? !self.checked : self.checked;
             switch(self.valueType) {
               case 'number':
                 Preferences.setIntegerPref(self.pref,
                     Number(value), self.metric);
                 break;
               case 'boolean':
                 Preferences.setBooleanPref(self.pref,
                     value, self.metric);
                 break;
             }
           });
     },
 
     /**
      * Sets up options in checkbox element.
      * @param {String} valueType The preference type for this checkbox.
      */
     initializeValueType: function(valueType) {
       this.valueType = valueType || 'boolean';
-    }
+    },
   };
 
   /**
    * The preference name.
    * @type {string}
    */
   cr.defineProperty(PrefCheckbox, 'pref', cr.PropertyKind.ATTR);
 
   /**
    * The user metric string.
@@ skipping 425 matching lines @@
     PrefCheckbox: PrefCheckbox,
     PrefNumber: PrefNumber,
     PrefNumeric: PrefNumeric,
     PrefRadio: PrefRadio,
     PrefRange: PrefRange,
     PrefSelect: PrefSelect,
     PrefTextField: PrefTextField
   };
 
 });