Refactor site_power_status, power_strip modules into client/cros.

client/site_tests/power_ARMSettings/power_ARMSettings.py

 # 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.
 
 import glob, logging, os, re
-from autotest_lib.client.bin import test
-from autotest_lib.client.common_lib import error, site_power_status, utils
+from autotest_lib.client.bin import test, utils
+from autotest_lib.client.common_lib import error
+from autotest_lib.client.cros import power_status
 
 class power_ARMSettings(test.test):
     version = 1
 
     def run_once(self):
         if not self._check_cpu_type():
             raise error.TestNAError('Unsupported CPU')
 
-        power_status = site_power_status.get_status()
-        if power_status.linepower[0].online:
+        status = power_status.get_status()
+        if status.linepower[0].online:
             logging.info('AC Power is online')
             self._on_ac = True
         else:
             logging.info('AC Power is offline')
             self._on_ac = False
 
         failures = ''
 
         fail_count = self._verify_wifi_power_settings()
         if fail_count:
@@ skipping 54 matching lines @@
                 continue
 
             out = utils.read_one_line(level_file)
             logging.debug('USB: path set to %s for %s',
                            out, level_file)
             if out != expected_state:
                 logging.info(level_file)
                 errors += 1
 
         return errors