Use gn_helpers to [se]serialize GN lists.

build/android/gyp/apkbuilder.py

Index: build/android/gyp/apkbuilder.py
diff --git a/build/android/gyp/apkbuilder.py b/build/android/gyp/apkbuilder.py
index 71be5a1d29775842fec7f2e4c64ff40bef7e9a2b..82ac496ed970039ed34bd51af0e06c64b88d91f4 100755
--- a/build/android/gyp/apkbuilder.py
+++ b/build/android/gyp/apkbuilder.py
@@ -69,18 +69,18 @@ def _ParseArgs(args):
                       action='store_true',
                       help='Uncompress shared libraries')
   options = parser.parse_args(args)
-  options.assets = build_utils.ParseGypList(options.assets)
-  options.uncompressed_assets = build_utils.ParseGypList(
+  options.assets = build_utils.ParseGnList(options.assets)
+  options.uncompressed_assets = build_utils.ParseGnList(
       options.uncompressed_assets)
-  options.native_lib_placeholders = build_utils.ParseGypList(
+  options.native_lib_placeholders = build_utils.ParseGnList(
       options.native_lib_placeholders)
   all_libs = []
   for gyp_list in options.native_libs:
-    all_libs.extend(build_utils.ParseGypList(gyp_list))
+    all_libs.extend(build_utils.ParseGnList(gyp_list))
   options.native_libs = all_libs
   secondary_libs = []
   for gyp_list in options.secondary_native_libs:
-    secondary_libs.extend(build_utils.ParseGypList(gyp_list))
+    secondary_libs.extend(build_utils.ParseGnList(gyp_list))
   options.secondary_native_libs = secondary_libs