Use gn_helpers to [se]serialize GN lists.

build/android/gyp/package_resources.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.
 
 # pylint: disable=C0301
 """Package resources into an apk.
 
 See https://android.googlesource.com/platform/tools/base/+/master/legacy/ant-tasks/src/main/java/com/android/ant/AaptExecTask.java
@@ skipping 112 matching lines @@
   if positional_args:
     parser.error('No positional arguments should be given.')
 
   # Check that required options have been provided.
   required_options = ('android_sdk_jar', 'aapt_path', 'configuration_name',
                       'android_manifest', 'version_code', 'version_name',
                       'apk_path')
 
   build_utils.CheckOptions(options, parser, required=required_options)
 
-  options.resource_zips = build_utils.ParseGypList(options.resource_zips)
-  options.language_splits = build_utils.ParseGypList(options.language_splits)
+  options.resource_zips = build_utils.ParseGnList(options.resource_zips)
+  options.language_splits = build_utils.ParseGnList(options.language_splits)
   return options
 
 
 def MoveImagesToNonMdpiFolders(res_root):
   """Move images from drawable-*-mdpi-* folders to drawable-* folders.
 
   Why? http://crbug.com/289843
   """
   for src_dir_name in os.listdir(res_root):
     src_components = src_dir_name.split('-')
@@ skipping 171 matching lines @@
   build_utils.CallAndWriteDepfileIfStale(
       lambda: _OnStaleMd5(package_command, options),
       options,
       input_paths=input_paths,
       input_strings=input_strings,
       output_paths=output_paths)
 
 
 if __name__ == '__main__':
   main(sys.argv[1:])