[Android] Add optional per-test cooling wait for perf tests.

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 588 matching lines @@
   group.add_argument(
       '--no-timeout', action='store_true',
       help=('Do not impose a timeout. Each perf step is responsible for '
             'implementing the timeout logic.'))
   group.add_argument(
       '-f', '--test-filter',
       help=('Test filter (will match against the names listed in --steps).'))
   group.add_argument(
       '--dry-run', action='store_true',
       help='Just print the steps without executing.')
+  # Uses 0.1 degrees C because that's what Android does.
+  group.add_argument(
+      '--max-battery-temp', type=int,
+      help='Only start tests when the battery is at or below the given '
+           'temperature (0.1 C)')
   group.add_argument('single_step_command', nargs='*', action=SingleStepAction,
                      help='If --single-step is specified, the command to run.')
   AddCommonOptions(parser)
   AddDeviceOptions(parser)
 
 
 def ProcessPerfTestOptions(args):
   """Processes all perf test options.
 
   Args:
     args: argparse.Namespace object.
 
   Returns:
     A PerfOptions named tuple which contains all options relevant to
     perf tests.
   """
   # TODO(jbudorick): Move single_step handling down into the perf tests.
   if args.single_step:
     args.single_step = ' '.join(args.single_step_command)
   # TODO(jbudorick): Get rid of PerfOptions.
   return perf_test_options.PerfOptions(
       args.steps, args.flaky_steps, args.output_json_list,
       args.print_step, args.no_timeout, args.test_filter,
       args.dry_run, args.single_step, args.collect_chartjson_data,
-      args.output_chartjson_data)
+      args.output_chartjson_data, args.max_battery_temp)
 
 
 def AddPythonTestOptions(parser):
   group = parser.add_argument_group('Python Test Options')
   group.add_argument(
       '-s', '--suite', dest='suite_name', metavar='SUITE_NAME',
       choices=constants.PYTHON_UNIT_TEST_SUITES.keys(),
       help='Name of the test suite to run.')
   AddCommonOptions(parser)
 
@@ skipping 403 matching lines @@
     if e.is_infra_error:
       return constants.INFRA_EXIT_CODE
     return constants.ERROR_EXIT_CODE
   except: # pylint: disable=W0702
     logging.exception('Unrecognized error occurred.')
     return constants.ERROR_EXIT_CODE
 
 
 if __name__ == '__main__':
   sys.exit(main())