Clean up logging and add device randomization.

build/android/test_runner.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.
 
 """Runs all types of tests from one unified interface."""
 
 import argparse
 import collections
@@ skipping 110 matching lines @@
 
 def AddRemoteDeviceOptions(parser):
   group = parser.add_argument_group('Remote Device Options')
 
   group.add_argument('--trigger', default='',
                    help=('Only triggers the test if set. Stores test_run_id '
                          'in given file path. '))
   group.add_argument('--collect', default='',
                    help=('Only collects the test results if set. '
                          'Gets test_run_id from given file path.'))
-  group.add_argument('--remote-device', default='Nexus 5',
+  group.add_argument('--remote-device', default='',
                    help=('Device type to run test on.'))
-  group.add_argument('--remote-device-os', default='4.4.2',
+  group.add_argument('--remote-device-os', default='',
                    help=('OS to have on the device.'))
   group.add_argument('--results-path', default='',
                    help=('File path to download results to.'))
   group.add_argument('--api-protocol',
                    help=('HTTP protocol to use. (http or https)'))
   group.add_argument('--api-address', help=('Address to send HTTP requests.'))
   group.add_argument('--api-port', help=('Port to send HTTP requests to.'))
   group.add_argument('--runner-type', default='',
                    help=('Type of test to run as.'))
   group.add_argument('--runner-package', default='',
@@ skipping 840 matching lines @@
     subparser = command_parsers.add_parser(
         test_type, usage='%(prog)s [options]', help=config.help_txt)
     config.add_options_func(subparser)
 
   args = parser.parse_args()
   return RunTestsCommand(args, parser)
 
 
 if __name__ == '__main__':
   sys.exit(main())