Move recipe engine to third_party/recipe_engine.

scripts/slave/recipe_modules/chromium_tests/api.py

 # 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.
 
 import contextlib
 import copy
 import json
 
 from infra.libs.infra_types import freeze, thaw
-from slave import recipe_api
-from slave import recipe_util
+from recipe_engine import recipe_api
+from recipe_engine import util as recipe_util
 
 
 class ChromiumTestsApi(recipe_api.RecipeApi):
   def configure_build(self, mastername, buildername, override_bot_type=None,
 ):
     master_dict = self.m.chromium.builders.get(mastername, {})
     bot_config = master_dict.get('builders', {}).get(buildername)
 
     # Get the buildspec version. It can be supplied as a build property or as
     # a recipe config value.
@@ skipping 583 matching lines @@
           master_config.get('build_gs_bucket'),
           extra_url_components=None)
     elif (mastername == 'tryserver.chromium.perf' or
           (mastername == 'tryserver.chromium.linux' and
            buildername == 'linux_full_bisect_builder')):
       return None
     else:
       return self.m.archive.legacy_upload_url(
           master_config.get('build_gs_bucket'),
           extra_url_components=self.m.properties['mastername'])