Fix some closure compilation issues 8n order to update compiler.jar

chrome/browser/resources/options/pref_ui.js

 // Copyright (c) 2012 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;
 
   /**
    * Allows an element to be disabled for several reasons.
    * The element is disabled if at least one reason is true, and the reasons
@@ skipping 80 matching lines @@
      * it, a default handler is invoked that updates the input element's state.
      * @param {Event} event Pref change event.
      * @protected
      */
     updateStateFromPref: function(event) {
       if (!this.customPrefChangeHandler(event))
         this.value = event.value.value;
     },
 
     /**
+     * An abstract method for all subclasses to override to update their
+     * preference from existing state.
+     * @protected
+     */
+    updatePrefFromState: assertNotReached,
+
+    /**
      * See |updateDisabledState| above.
      */
     setDisabled: function(reason, disabled) {
       updateDisabledState(this, reason, disabled);
     },
 
     /**
      * Custom change handler that is invoked first when the user makes changes
      * to the input element's state. If it returns false, a default handler is
      * invoked next that updates the associated pref. If it returns true, the
@@ skipping 467 matching lines @@
     PrefInputElement: PrefInputElement,
     PrefNumber: PrefNumber,
     PrefRadio: PrefRadio,
     PrefRange: PrefRange,
     PrefSelect: PrefSelect,
     PrefTextField: PrefTextField,
     PrefPortNumber: PrefPortNumber,
     PrefButton: PrefButton
   };
 });