Create a cros directory under client, and start moving things into it.

client/common_lib/site_auth_server.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 httplib, logging, os, socket, stat, time, utils
-from autotest_lib.client.bin import chromeos_constants, site_cryptohome
+from autotest_lib.client.bin import site_cryptohome
 from autotest_lib.client.common_lib import error, site_httpd
+from autotest_lib.client.cros import constants as chromeos_constants
 
 class GoogleAuthServer(object):
     """A mock Google accounts server that can be run in a separate thread
     during autotests. By default, it returns happy-signals, accepting any
     credentials.
     """
 
     sid = '1234'
     lsid = '5678'
     token = 'aaaa'
@@ skipping 111 matching lines @@
         if not 'continue' in url_args:
             raise error.TestError('TokenAuth called with no continue param')
         handler.send_response(httplib.SEE_OTHER)
         handler.send_header('Location', url_args['continue'][0])
         handler.end_headers()
 
 
     def __test_over_responder(self, handler, url_args):
         handler.send_response(httplib.OK)
         handler.end_headers()