[Android] Add a custom pylintrc for build/android/.

build/android/buildbot/bb_device_steps.py

 #!/usr/bin/env python
 # Copyright (c) 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.
 
 import collections
 import glob
 import hashlib
 import json
 import os
@@ skipping 706 matching lines @@
 
   if args:
     return sys.exit('Unused args %s' % args)
 
   unknown_tests = set(options.test_filter) - VALID_TESTS
   if unknown_tests:
     return sys.exit('Unknown tests %s' % list(unknown_tests))
 
   setattr(options, 'target', options.factory_properties.get('target', 'Debug'))
 
+  # pylint: disable=global-statement
   if options.chrome_output_dir:
     global CHROME_OUT_DIR
     global LOGCAT_DIR
     CHROME_OUT_DIR = options.chrome_output_dir
     LOGCAT_DIR = os.path.join(CHROME_OUT_DIR, 'logcat')
 
   if options.coverage_bucket:
     setattr(options, 'coverage_dir',
             os.path.join(CHROME_OUT_DIR, options.target, 'coverage'))
 
   MainTestWrapper(options)
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv))