Fix sudo again.

bin/cros_au_test_harness.py

 #!/usr/bin/python
 
 # Copyright (c) 2011 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.
 
 """This module runs a suite of Auto Update tests.
 
   The tests can be run on either a virtual machine or actual device depending
   on parameters given.  Specific tests can be run by invoking --test_prefix.
@@ skipping 714 matching lines @@
   """A Simple wrapper around a devserver instance."""
 
   def __init__(self):
     self.proc = None
     threading.Thread.__init__(self)
 
   def run(self):
     # Kill previous running instance of devserver if it exists.
     RunCommand(['sudo', 'pkill', '-f', 'devserver.py', ], error_ok=True,
                print_cmd=False)
-    self.proc = subprocess.Popen(['./start_devserver',
+    self.proc = subprocess.Popen(['sudo',
+                                  './start_devserver',
                                   '--archive_dir=./static',
                                   '--client_prefix=ChromeOSUpdateEngine',
                                   '--production',
                                  ])
     self.proc.communicate()
 
   def Stop(self):
     """Kills the devserver instance."""
     self.proc.kill()
 
@@ skipping 199 matching lines @@
   else:
     dev_server_cache = None
     test_suite = _PrepareTestSuite(parser, options, test_class)
     test_result = unittest.TextTestRunner(verbosity=2).run(test_suite)
     if not test_result.wasSuccessful():
       Die('Test harness was not successful.')
 
 
 if __name__ == '__main__':
   main()