options: Remove a bunch of useless:

chrome/browser/resources/options/clear_browser_data_overlay.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 OptionsPage = options.OptionsPage;
 
   /**
    * ClearBrowserDataOverlay class
    * Encapsulated handling of the 'Clear Browser Data' overlay page.
@@ skipping 29 matching lines @@
      * Whether or not the WebUI handler has completed initialization.
      *
      * Unless this becomes true, it must be assumed that the above flags might
      * not contain the authoritative values.
      *
      * @type {boolean}
      * @private
      */
     isInitializationComplete_: false,
 
-    /**
-     * Initialize the page.
-     */
+    /** @override */
     initializePage: function() {
       // Call base class implementation to starts preference initialization.
       OptionsPage.prototype.initializePage.call(this);
 
       var f = this.updateStateOfControls_.bind(this);
       var types = ['browser.clear_data.browsing_history',
                    'browser.clear_data.download_history',
                    'browser.clear_data.cache',
                    'browser.clear_data.cookies',
                    'browser.clear_data.passwords',
@@ skipping 67 matching lines @@
         } else {
           var span = document.createElement('span');
           span.textContent = footerFragments[i];
           footer.appendChild(span);
           i += 1;
         }
       }
       $('open-content-settings-from-clear-browsing-data').onclick =
           function(event) {
         OptionsPage.navigateToPage('content');
-      }
+      };
       $('open-search-engines-from-clear-browsing-data').onclick =
           function(event) {
         OptionsPage.navigateToPage('searchEngines');
-      }
+      };
     },
 
     /**
      * Sets whether or not we are in the process of clearing data.
      * @param {boolean} clearing Whether the browsing data is currently being
      *     cleared.
      * @private
      */
     setClearing_: function(clearing) {
       this.isClearingInProgress_ = clearing;
@@ skipping 105 matching lines @@
     var topmostVisiblePage = OptionsPage.getTopmostVisiblePage();
     if (topmostVisiblePage && topmostVisiblePage.name == 'clearBrowserData')
       OptionsPage.closeOverlay();
   };
 
   // Export
   return {
     ClearBrowserDataOverlay: ClearBrowserDataOverlay
   };
 });