Compile chrome://settings, part 1: remove all warnings

chrome/browser/resources/options/language_options.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.
 
 // TODO(kochi): Generalize the notification as a component and put it
 // in js/cr/ui/notification.js .
 
 cr.define('options', function() {
   /** @const */ var Page = cr.ui.pageManager.Page;
   /** @const */ var PageManager = cr.ui.pageManager.PageManager;
@@ skipping 66 matching lines @@
     Page.call(this, 'languages',
               loadTimeData.getString('languagePageTabTitle'), 'languagePage');
   }
 
   cr.addSingletonGetter(LanguageOptions);
 
   // Inherit LanguageOptions from Page.
   LanguageOptions.prototype = {
     __proto__: Page.prototype,
 
-    /* For recording the prospective language (the next locale after relaunch).
+    /**
+     * For recording the prospective language (the next locale after relaunch).
      * @type {?string}
      * @private
      */
     prospectiveUiLanguageCode_: null,
 
-    /*
+    /**
      * Map from language code to spell check dictionary download status for that
      * language.
      * @type {Array}
      * @private
      */
     spellcheckDictionaryDownloadStatus_: [],
 
     /**
      * Number of times a spell check dictionary download failed.
      * @type {int}
@@ skipping 801 matching lines @@
         return false;
       return (!cr.isChromeOS ||
               this.canDeleteLanguage_(languageCode));
     },
 
     /**
      * Handles browse.enable_spellchecking change.
      * @param {Event} e Change event.
      * @private
      */
-    updateEnableSpellCheck_: function() {
+    updateEnableSpellCheck_: function(e) {
        var value = !$('enable-spell-check').checked;
        $('language-options-spell-check-language-button').disabled = value;
        if (!cr.IsMac)
          $('edit-dictionary-button').hidden = value;
      },
 
     /**
      * Handles translateBlockedLanguagesPref change.
      * @param {Event} e Change event.
      * @private
@@ skipping 365 matching lines @@
       this.spellcheckDictionaryDownloadStatus_[languageCode] =
           DOWNLOAD_STATUS.FAILED;
       this.spellcheckDictionaryDownloadFailures_++;
       if (!cr.isMac &&
           languageCode ==
               $('language-options-list').getSelectedLanguageCode()) {
         this.updateSpellCheckLanguageButton_(languageCode);
       }
     },
 
-    /*
+    /**
      * Converts the language code for Translation. There are some differences
      * between the language set for Translation and that for Accept-Language.
      * @param {string} languageCode The language code like 'fr'.
      * @return {string} The converted language code.
      * @private
      */
     convertLangCodeForTranslation_: function(languageCode) {
       var tokens = languageCode.split('-');
       var main = tokens[0];
 
@@ skipping 44 matching lines @@
 
   LanguageOptions.onDictionaryDownloadFailure = function(languageCode) {
     LanguageOptions.getInstance().onDictionaryDownloadFailure_(languageCode);
   };
 
   // Export
   return {
     LanguageOptions: LanguageOptions
   };
 });