Added a new automation hook ExecuteJavascriptInOOBEWebUI() to execute javascript prior to login on…

chrome/test/functional/chromeos_login.py

 #!/usr/bin/env python
 # Copyright (c) 2011 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 os
 import subprocess
 
 import pyauto_functional  # Must be imported before pyauto
 import pyauto
@@ skipping 13 matching lines @@
     pyauto.PyUITest.setUp(self)
 
   def _ValidCredentials(self, account_type='test_google_account'):
     """Obtains a valid username and password from a data file.
 
     Returns:
       A dictionary with the keys 'username' and 'password'
     """
     return self.GetPrivateInfo()[account_type]
 
+  def testExecuteJavascriptInOOBEWebUI(self):
+    """Test that javascript can be executed at the login page."""
+    msg = 'test success'
+    ret = self.ExecuteJavascriptInOOBEWebUI(
+              'window.domAutomationController.send("%s");' % msg)
+    self.assertEqual(ret, msg)
+
   def testGoodLogin(self):
     """Test that login is successful with valid credentials."""
     credentials = self._ValidCredentials()
     self.Login(credentials['username'], credentials['password'])
     login_info = self.GetLoginInfo()
     self.assertTrue(login_info['is_logged_in'], msg='Login failed.')
 
   def testBadUsername(self):
     """Test that login fails when passed an invalid username."""
     self.Login('doesnotexist@fakedomain.org', 'badpassword')
@@ skipping 97 matching lines @@
     self.testGoodLogin()
     self.Logout()
     self.testBadPassword()
     self.testLoginAsGuest()
     self.Logout()
     self.testLoginToCreateNewAccount()
 
 
 if __name__ == '__main__':
   pyauto_functional.Main()