Enable presubmit pylint in build/android.

build/android/pylib/utils/findbugs.py

 # Copyright (c) 2012 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 optparse
 import os
 import re
 import shlex
 import subprocess
 import sys
@@ skipping 44 matching lines @@
     print
   else:
     print 'No new FindBugs warnings.'
   print
   return count
 
 
 def _Rebaseline(current_warnings_set, known_bugs_file):
   with file(known_bugs_file, 'w') as known_bugs:
     for warning in sorted(current_warnings_set):
-      print >>known_bugs, warning
+      print >> known_bugs, warning
   return 0
 
 
 def _GetChromeClasses(release_version):
   version = 'Debug'
   if release_version:
     version = 'Release'
   path = os.path.join(constants.DIR_SOURCE_ROOT, 'out', version)
   cmd = 'find %s -name "*.class"' % path
   out = cmd_helper.GetCmdOutput(shlex.split(cmd))
@@ skipping 49 matching lines @@
     cmd = '%s %s ' % (cmd, findbug_args)
 
 
   chrome_classes = _GetChromeClasses(release_version)
   if not chrome_classes:
     return 1
   cmd = '%s %s ' % (cmd, chrome_classes)
 
   proc = subprocess.Popen(shlex.split(cmd),
                           stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-  out, err = proc.communicate()
+  out, _err = proc.communicate()
   current_warnings_set = set(_StripLineNumbers(filter(None, out.splitlines())))
 
   if rebaseline:
     return _Rebaseline(current_warnings_set, known_bugs)
   else:
     return _DiffKnownWarnings(current_warnings_set, known_bugs)
 
 def Run(options):
   exclude_file = None
   known_bugs_file = None
@@ skipping 67 matching lines @@
   parser.add_option('-b',
                     '--base-dir',
                     action='store',
                     default=None,
                     dest='base_dir',
                     help='Base directory for configuration file.')
 
   return parser
 
 
-def main(argv):
+def main():
   parser = GetCommonParser()
   options, _ = parser.parse_args()
 
   return Run(options)
 
 
 if __name__ == '__main__':
-  sys.exit(main(sys.argv))
+  sys.exit(main())