Use gn_helpers to [se]serialize GN lists.

build/android/gyp/insert_chromium_version.py

Index: build/android/gyp/insert_chromium_version.py
diff --git a/build/android/gyp/insert_chromium_version.py b/build/android/gyp/insert_chromium_version.py
index 171f9d41b8d1d70f281b6c5fb6a65c2d347e25fb..9fefa2314e59423bf7e5880190d4705412111307 100755
--- a/build/android/gyp/insert_chromium_version.py
+++ b/build/android/gyp/insert_chromium_version.py
@@ -7,6 +7,7 @@
 """Insert a version string into a library as a section '.chromium.version'.
 """
 
+import ast
 import optparse
 import os
 import sys
@@ -41,13 +42,13 @@ def main(args):
   parser.add_option('--stripped-libraries-dir',
       help='Directory of native libraries')
   parser.add_option('--libraries',
-      help='List of libraries')
+      help='List of libraries in Python list format')
   parser.add_option('--version-string',
       help='Version string to be inserted')
   parser.add_option('--stamp', help='Path to touch on success')
 
   options, _ = parser.parse_args(args)
-  libraries = build_utils.ParseGypList(options.libraries)
+  libraries = ast.literal_eval(options.libraries)
 
   for library in libraries:
     library_path = os.path.join(options.stripped_libraries_dir, library)