Enable presubmit pylint in build/android.

build/android/surface_stats.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.
 
 """Command line tool for continuously printing Android graphics surface
 statistics on the console.
 """
 
@@ skipping 77 matching lines @@
                     default='jank_count,max_frame_delay,avg_surface_fps,'
                         'frame_lengths',
                     help='Comma separated list of fields to display or "all".')
   parser.add_option('-d',
                     '--delay',
                     dest='delay',
                     default=1,
                     type='float',
                     help='Time in seconds to sleep between updates.')
 
-  options, args = parser.parse_args(argv)
+  options, _ = parser.parse_args(argv)
   run_tests_helper.SetLogLevel(options.verbose_count)
 
   adb = android_commands.AndroidCommands(options.device)
   collector = surface_stats_collector.SurfaceStatsCollector(adb)
   collector.DisableWarningAboutEmptyData()
 
   fields = options.fields.split(',')
   row_count = None
 
   try:
@@ skipping 15 matching lines @@
       _PrintResults(results)
       row_count += 1
   except KeyboardInterrupt:
     sys.exit(0)
   finally:
     collector.Stop()
 
 
 if __name__ == '__main__':
   main(sys.argv)