Add tabs to passwords and exceptions subpage

chrome/browser/resources/options/passwords_exceptions.js

 // Copyright (c) 2010 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;
 
   /////////////////////////////////////////////////////////////////////////////
   // PasswordsExceptions class:
 
   /**
    * Encapsulated handling of password and exceptions page.
    * @constructor
    */
   function PasswordsExceptions() {
+    this.activeNavTab = null;
     OptionsPage.call(this, 'passwordsExceptions',
                      templateData.passwordsExceptionsTitle,
                      'passwordsExceptionsPage');
   }
 
   cr.addSingletonGetter(PasswordsExceptions);
 
   PasswordsExceptions.prototype = {
     __proto__: OptionsPage.prototype,
 
     initializePage: function() {
       OptionsPage.prototype.initializePage.call(this);
 
-      // TODO(sargrass): Add initialization here.
-    }
+      // TODO(sargrass): Passwords filter page --------------------------
+
+      // TODO(sargrass): Exceptions filter page -------------------------
+
+    },
   };
 
   // Export
   return {
     PasswordsExceptions: PasswordsExceptions
   };
 
 });