Move recipe engine to third_party/recipe_engine.

scripts/slave/recipe_modules/v8/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 collections
 import datetime
 import math
 import re
 
 from infra.libs.infra_types import freeze
-from slave import recipe_api
+from recipe_engine import recipe_api
 from . import builders
 
 
 # Regular expressions for v8 branch names.
 RELEASE_BRANCH_RE = re.compile(r'^\d+\.\d+$')
 ROLL_BRANCH_RE = re.compile(r'^\d+\.\d+\.\d+$')
 
 # With more than 23 letters, labels are to big for buildbot's popup boxes.
 MAX_LABEL_SIZE = 23
 
@@ skipping 882 matching lines @@
       properties = {
         'revision': self.revision,
         'parent_got_revision': self.revision,
         'parent_got_revision_cp': self.revision_cp,
       }
       properties.update(**additional_properties)
       self.m.trigger(*[{
         'builder_name': builder_name,
         'properties': properties,
       } for builder_name in triggers])