Use gn_helpers to [se]serialize GN lists.

build/android/gyp/configure_multidex.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.
 
 
 import argparse
 import json
 import os
 import sys
@@ skipping 19 matching lines @@
   parser.add_argument('--multidex-configuration-path', required=True,
                       help='The path to which the multidex configuration JSON '
                            'should be saved.')
   parser.add_argument('--multidex-config-java-file', required=True)
   parser.add_argument('--multidex-config-java-stamp', required=True)
   parser.add_argument('--multidex-config-java-template', required=True)
 
   args = parser.parse_args()
 
   if args.enabled_configurations:
-    args.enabled_configurations = build_utils.ParseGypList(
+    args.enabled_configurations = build_utils.ParseGnList(
         args.enabled_configurations)
 
   return args
 
 
 def _WriteConfigJson(multidex_enabled, multidex_configuration_path):
   config = {
     'enabled': multidex_enabled,
   }
 
@@ skipping 27 matching lines @@
 
   _WriteConfigJson(multidex_enabled, args.multidex_configuration_path)
   _GenerateMultidexConfigJava(multidex_enabled, args)
 
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main())