Move recipe engine to third_party/recipe_engine.

third_party/recipe_engine/recipe_api.py

-# Copyright 2013 The Chromium Authors. All rights reserved.
+# Copyright 2013-2015 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 types
 
 from functools import wraps
 
 from .recipe_test_api import DisabledTestData, ModuleTestData
 
-from .recipe_util import ModuleInjectionSite
+from .util import ModuleInjectionSite
 
 from . import field_composer
 
 
 class StepFailure(Exception):
   """
   This is the base class for all step failures.
 
   Raising a StepFailure counts as 'running a step' for the purpose of
   infer_composite_step's logic.
@@ skipping 417 matching lines @@
     #  module.resource('dir').join('subdir', 'file.py')
     return self._module.MODULE_DIRECTORY.join('resources', *path)
 
   @property
   def name(self):
     return self._module.NAME
 
 
 class RecipeApi(RecipeApiPlain):
   __metaclass__ = RecipeApiMeta