Cross-repo recipe package system.

scripts/slave/recipe_modules/isolate/resources/compare_build_artifacts.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.
 
 """Compare the artifacts from two builds."""
 
 import difflib
 import json
 import optparse
 import os
 import struct
 import sys
 import time
 
-from infra.libs.infra_types import freeze
+from recipe_engine.types import freeze
 
 BASE_DIR = os.path.dirname(os.path.abspath(__file__))
 
 
 # List of files that are known to be non deterministic. This is a "temporary"
 # workaround to find regression on the deterministic builders.
 #
 # PNaCl general bug: https://crbug.com/429358
 #
 # TODO(sebmarchand): Remove this once all the files are deterministic.
@@ skipping 659 matching lines @@
     parser.error('--target-platform is required')
 
   return compare_build_artifacts(os.path.abspath(options.first_build_dir),
                                  os.path.abspath(options.second_build_dir),
                                  options.target_platform,
                                  options.recursive)
 
 
 if __name__ == '__main__':
   sys.exit(main())