[Android] Prepare build/android/ for catapult+devil.

build/android/buildbot/bb_device_status_check.py

 #!/usr/bin/env python
 #
 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """A class to keep track of devices across builds and report state."""
 
 import argparse
 import json
 import logging
 import os
 import psutil
 import re
 import signal
 import sys
 
 sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
 import devil_chromium
 from devil.android import battery_utils
 from devil.android import device_blacklist
 from devil.android import device_errors
 from devil.android import device_list
 from devil.android import device_utils
 from devil.android.sdk import adb_wrapper
+from devil.constants import exit_codes
 from devil.utils import lsusb
 from devil.utils import reset_usb
 from devil.utils import run_tests_helper
-from pylib import constants
+from pylib.constants import host_paths
 
 _RE_DEVICE_ID = re.compile(r'Device ID = (\d+)')
 
 
 def KillAllAdb():
   def GetAllAdb():
     for p in psutil.process_iter():
       try:
         if 'adb' in p.name:
           yield p
@@ skipping 250 matching lines @@
           blacklist.Extend([device.adb.GetDeviceSerial()],
                            reason='reboot_timeout')
 
   device_utils.DeviceUtils.parallel(devices).pMap(blacklisting_recovery)
 
 
 def main():
   parser = argparse.ArgumentParser()
   parser.add_argument('--out-dir',
                       help='Directory where the device path is stored',
-                      default=os.path.join(constants.DIR_SOURCE_ROOT, 'out'))
+                      default=os.path.join(host_paths.DIR_SOURCE_ROOT, 'out'))
   parser.add_argument('--restart-usb', action='store_true',
                       help='DEPRECATED. '
                            'This script now always tries to reset USB.')
   parser.add_argument('--json-output',
                       help='Output JSON information into a specified file.')
   parser.add_argument('--blacklist-file', help='Device blacklist JSON file.')
   parser.add_argument('-v', '--verbose', action='count', default=1,
                       help='Log more information.')
 
   args = parser.parse_args()
@@ skipping 72 matching lines @@
   # Dump the device statuses to JSON.
   if args.json_output:
     with open(args.json_output, 'wb') as f:
       f.write(json.dumps(statuses, indent=4))
 
   live_devices = [status['serial'] for status in statuses
                   if (status['adb_status'] == 'device'
                       and not _IsBlacklisted(status['serial'], blacklist))]
 
   # If all devices failed, or if there are no devices, it's an infra error.
-  return 0 if live_devices else constants.INFRA_EXIT_CODE
+  return 0 if live_devices else exit_codes.INFRA
 
 
 if __name__ == '__main__':
   sys.exit(main())