Use gn_helpers to [se]serialize GN lists.

build/android/gyp/create_test_runner_script.py

 #!/usr/bin/env python
 #
 # Copyright 2015 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.
 
 """Creates a script to run an android test using build/android/test_runner.py.
 """
 
 import argparse
@@ skipping 62 matching lines @@
     """Returns the path relative to the output script directory."""
     return os.path.relpath(path, os.path.dirname(args.script_output_path))
 
   test_runner_path = args.test_runner_path or os.path.join(
       os.path.dirname(__file__), os.path.pardir, 'test_runner.py')
   test_runner_path = RelativizePathToScript(test_runner_path)
 
   test_runner_path_args = []
   if args.additional_apk_list:
     args.additional_apks.extend(
-        build_utils.ParseGypList(args.additional_apk_list))
+        build_utils.ParseGnList(args.additional_apk_list))
   if args.additional_apks:
     test_runner_path_args.extend(
         ('--additional-apk', RelativizePathToScript(a))
         for a in args.additional_apks)
   if args.apk_under_test:
     test_runner_path_args.append(
         ('--apk-under-test', RelativizePathToScript(args.apk_under_test)))
   if args.apk_under_test_incremental_install_script:
     test_runner_path_args.append(
         ('--apk-under-test-incremental-install-script',
@@ skipping 28 matching lines @@
 
   os.chmod(args.script_output_path, 0750)
 
   if args.depfile:
     build_utils.WriteDepfile(
         args.depfile,
         build_utils.GetPythonDependencies())
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))