Rename the devtools library: pylib -> devtoolslib.

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
 
 import devtools
-devtools.add_pylib_to_path()
-from pylib.android_shell import AndroidShell
-from pylib.linux_shell import LinuxShell
-from pylib.apptest_dart import run_dart_apptest
-from pylib.apptest_gtest import run_gtest_apptest
+devtools.add_lib_to_path()
+from devtoolslib.android_shell import AndroidShell
+from devtoolslib.linux_shell import LinuxShell
+from devtoolslib.apptest_dart import run_dart_apptest
+from devtoolslib.apptest_gtest import run_gtest_apptest
 
 from mopy import gtest
 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 not apptest_result:
       exit_code = 1
     print "Succeeded" if apptest_result else "Failed"
     _logger.info("Completed: %s" % test_name)
 
   return exit_code
 
 
 if __name__ == '__main__':
   sys.exit(main())