Refactor site_power_status, power_strip modules into client/cros.

server/site_tests/platform_CryptohomeSyncStressServer/platform_CryptohomeSyncStressServer.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 random, time
-from autotest_lib.client.common_lib import error, power_strip
+from autotest_lib.client.common_lib import error
+from autotest_lib.client.cros import power_strip
 from autotest_lib.server import autotest, test
 
 class platform_CryptohomeSyncStressServer(test.test):
     version = 1
     max_delay = 120
 
     def run_once(self, host, power_addr, outlet, username, password):
         # check parameters
         if power_addr == None:
             raise error.TestFail('Missing power_addr argument.')
@@ skipping 17 matching lines @@
             raise error.TestFail('Client test failed')
 
         # wait for some delay
         delay = random.randint(0, self.max_delay)
         print 'Delaying for %s seconds and then restarting.' % (delay)
         time.sleep(delay)
 
         # restart client
         power_strip.PowerStrip(power_addr).reboot(outlet)
         host.wait_for_restart(old_boot_id=boot_id)