Move recipe engine to third_party/recipe_engine.

scripts/slave/recipe_modules/json/api.py

 # Copyright 2013 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 functools
 import collections
 import contextlib
 import json
 
-from slave import recipe_api
-from slave import recipe_util
-from slave import recipe_config_types
+from recipe_engine import recipe_api
+from recipe_engine import util as recipe_util
+from recipe_engine import config_types
 
 
 class JsonOutputPlaceholder(recipe_util.Placeholder):
   """JsonOutputPlaceholder is meant to be a placeholder object which, when added
   to a step's cmd list, will be replaced by annotated_run with the path to a
   temporary file (e.g. /tmp/tmp4lp1qM) which will exist only for the duration of
   the step. If the script requires a flag (e.g. --output-json /path/to/file),
   you must supply that flag yourself in the cmd list.
 
   This placeholder can be optionally added when you use the Steps.step()
@@ skipping 38 matching lines @@
     return ret
 
 
 class JsonApi(recipe_api.RecipeApi):
   def __init__(self, **kwargs):
     super(JsonApi, self).__init__(**kwargs)
     self.loads = json.loads
     @functools.wraps(json.dumps)
     def dumps(*args, **kwargs):
       kwargs['sort_keys'] = True
-      kwargs.setdefault('default', recipe_config_types.json_fixup)
+      kwargs.setdefault('default', config_types.json_fixup)
       return json.dumps(*args, **kwargs)
     self.dumps = dumps
 
   def is_serializable(self, obj):
     """Returns True if the object is JSON-serializable."""
     try:
       self.dumps(obj)
       return True
     except Exception:
       return False
@@ skipping 31 matching lines @@
 
     It's vastly preferable to have your recipe only pass the bare minimum
     of arguments to steps. Passing property objects obscures the data that
     the script actually consumes from the property object.
     """
     prop_str = self.dumps(dict(self.m.properties.legacy()))
     return [
       '--factory-properties', prop_str,
       '--build-properties', prop_str
     ]