Update the webdriver_pages to use "list" instead of "listbox".

chrome/test/functional/webdriver_pages/settings.py

 # 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.
 
 import types
 
 import selenium.common.exceptions
 from selenium.webdriver.common.action_chains import ActionChains
 from selenium.webdriver.support.ui import WebDriverWait
 
@@ skipping 305 matching lines @@
       driver: The remote WebDriver instance to manage some content type.
       content_type: The content type to manage.
     """
     content_url = 'chrome://settings-frame/contentExceptions#%s' % content_type
     driver.get(content_url)
     return ManageExceptionsPage(driver, content_type)
 
   def __init__(self, driver, content_type):
     self._list_elem = driver.find_element_by_xpath(
         './/*[@id="content-settings-exceptions-area"]'
-        '//*[@contenttype="%s"]//list[@role="listbox"]'
+        '//*[@contenttype="%s"]//list[@role="list"]'
         '[@class="settings-list"]' % content_type)
     self._driver = driver
     self._content_type = content_type
     try:
       self._incognito_list_elem = driver.find_element_by_xpath(
           './/*[@id="content-settings-exceptions-area"]'
           '//*[@contenttype="%s"]//div[not(@hidden)]'
-          '//list[@mode="otr"][@role="listbox"]'
+          '//list[@mode="otr"][@role="list"]'
           '[@class="settings-list"]' % content_type)
     except selenium.common.exceptions.NoSuchElementException:
       self._incognito_list_elem = None
 
   def _AssertIncognitoAvailable(self):
     if not self._incognito_list_elem:
       raise AssertionError(
           'Incognito settings in "%s" content page not available'
           % self._content_type)
 
@@ skipping 294 matching lines @@
     """
     delete_button_list = self._list_elem.find_elements_by_class_name(
         'row-delete-button')
     site_list = self.GetSiteNameList()
     for i in range(len(site_list)):
       if site_list[i] == site:
         # Highlight the item so the close button shows up, then delete button
         # shows up, then click on the delete button.
         ActionChains(self._driver).move_to_element(
             delete_button_list[i]).click().perform()