[Android] Some clean up in pylib.

build/android/device_stats_monitor.py

-#!/usr/bin/env python
-#
-# 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.
-
-"""Provides iotop/top style profiling for android.
-
-Usage:
-  ./device_stats_monitor.py --hz=20 --duration=5 --outfile=/tmp/foo
-"""
-
-import optparse
-import os
-import sys
-import time
-
-from pylib import android_commands
-from pylib import device_stats_monitor
-from pylib.utils import test_options_parser
-
-
-def main(argv):
-  option_parser = optparse.OptionParser()
-  option_parser.add_option('--hz', type='int', default=20,
-                           help='Number of samples/sec.')
-  option_parser.add_option('--duration', type='int', default=5,
-                           help='Seconds to monitor.')
-  option_parser.add_option('--outfile', default='/tmp/devicestatsmonitor',
-                           help='Location to start output file.')
-  test_options_parser.AddBuildTypeOption(option_parser)
-  options, args = option_parser.parse_args(argv)
-
-  monitor = device_stats_monitor.DeviceStatsMonitor(
-      android_commands.AndroidCommands(), options.hz, options.build_type)
-  monitor.Start()
-  print 'Waiting for %d seconds while profiling.' % options.duration
-  time.sleep(options.duration)
-  url = monitor.StopAndCollect(options.outfile)
-  print 'View results in browser at %s' % url
-
-if __name__ == '__main__':
-  sys.exit(main(sys.argv))