Add session object so that we have one class that control logged in session

client/bin/site_login.py

 # Copyright (c) 2010 The Chromium OS 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 logging, os, utils, signal, time
 from autotest_lib.client.bin import chromeos_constants, test
 from autotest_lib.client.common_lib import error, site_ui
 
 
 def setup_autox(test):
@@ skipping 73 matching lines @@
                                  'xscreensaver after %i seconds' %
                                  time.time() - start_time)
         return False
 
     return True
 
 
 def nuke_login_manager():
     nuke_process_by_name('session_manager')
     wait_for_browser()
+    
 
 def nuke_process_by_name(name, with_prejudice=False):
     pid = int(utils.system_output('pgrep -o ^%s$' % name))
     if with_prejudice:
         utils.nuke_pid(pid, [signal.SIGKILL])
     else:
-        utils.nuke_pid(pid)
+        utils.nuke_pid(pid)