[Android] Implement gtest and local in platform mode.

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 794 matching lines @@
 
   Raises:
     Exception: Unknown command name passed in, or an exception from an
         individual test runner.
   """
   command = args.command
 
   ProcessCommonOptions(args)
 
   if args.enable_platform_mode:
-    return RunTestsInPlatformMode(args, parser.error)
+    return RunTestsInPlatformMode(args, parser)
 
   if command in constants.LOCAL_MACHINE_TESTS:
     devices = []
   else:
     devices = _GetAttachedDevices(args.test_device)
 
   forwarder.Forwarder.RemoveHostLog()
   if not ports.ResetTestServerPortAllocation():
     raise Exception('Failed to reset test server port.')
 
@@ skipping 96 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())