Store only locale paks rather than all assets within BuildConfig.java

build/android/gyp/write_build_config.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.
 
 """Writes a build_config file.
 
 The build_config file for a target is a json file containing information about
 how to build that target based on the target's dependencies. This includes
@@ skipping 199 matching lines @@
   return ret
 
 
 def _CreateJavaLibrariesList(library_paths):
   """Returns a java literal array with the "base" library names:
   e.g. libfoo.so -> foo
   """
   return ('{%s}' % ','.join(['"%s"' % s[3:-3] for s in library_paths]))
 
 
-def _CreateJavaAssetList(assets):
+def _CreateLocalePaksAssetJavaList(assets):
   """Returns a java literal array from a list of assets in the form src:dst."""
-  return '{%s}' % ','.join(sorted(['"%s"' % a.split(':')[1] for a in assets]))
+  names_only = (a.split(':')[1][:-4] for a in assets if a.endswith('.pak'))
+  locales_only = (a for a in names_only if '-' in a or len(a) == 2)
+  return '{%s}' % ','.join(sorted('"%s"' % a for a in locales_only))
 
 
 def main(argv):
   parser = optparse.OptionParser()
   build_utils.AddDepfileOption(parser)
   parser.add_option('--build-config', help='Path to build_config output.')
   parser.add_option(
       '--type',
       help='Type of this target (e.g. android_library).')
   parser.add_option(
@@ skipping 404 matching lines @@
 
     all_inputs.extend(runtime_deps_files)
     config['native'] = {
       'libraries': library_paths,
       'secondary_abi_libraries': secondary_abi_library_paths,
       'java_libraries_list': java_libraries_list,
       'secondary_abi_java_libraries_list': secondary_abi_java_libraries_list,
     }
     config['assets'], config['uncompressed_assets'] = (
         _MergeAssets(deps.All('android_assets')))
-    config['compressed_assets_java_list'] = (
-        _CreateJavaAssetList(config['assets']))
-    config['uncompressed_assets_java_list'] = (
-        _CreateJavaAssetList(config['uncompressed_assets']))
+    config['compressed_locales_java_list'] = (
+        _CreateLocalePaksAssetJavaList(config['assets']))
+    config['uncompressed_locales_java_list'] = (
+        _CreateLocalePaksAssetJavaList(config['uncompressed_assets']))
 
   build_utils.WriteJson(config, options.build_config, only_if_changed=True)
 
   if options.depfile:
     build_utils.WriteDepfile(options.depfile, options.build_config, all_inputs)
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))