Fix apptest builds and runner on Android.

mojo/tools/apptest_runner.py

 #!/usr/bin/env python
 # Copyright 2014 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.
 
 """A test runner for gtest application tests."""
 
 import argparse
 import logging
 import sys
 
 from mopy import dart_apptest
 from mopy import gtest
-# TODO(msw): Mojo's script pulls in android.py via mojo/devtools/common/pylib.
 from mopy.android import AndroidShell
 from mopy.config import Config
 from mopy.gn import ConfigForGNArgs, ParseGNConfig
 from mopy.log import InitLogging
 from mopy.paths import Paths
 
 
 _logger = logging.getLogger()
 
 
@@ skipping 57 matching lines @@
     if apptest_result != "Succeeded":
       exit_code = 1
     print apptest_result
     _logger.info("Completed: %s" % test_name)
 
   return exit_code
 
 
 if __name__ == '__main__':
   sys.exit(main())