Move recipe engine to third_party/recipe_engine.

scripts/slave/recipe_modules/android/config.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.
 
-from slave.recipe_config import config_item_context, ConfigGroup, Single, List
-from slave.recipe_config import Static
-from slave.recipe_config_types import Path
+from recipe_engine.config import config_item_context, ConfigGroup, Single, List
+from recipe_engine.config import Static
+from recipe_engine.config_types import Path
 
 def BaseConfig(USE_MIRROR=False):
   chromium_in_android_subpath = ('external', 'chromium_org')
   build_path = Path('[SLAVE_BUILD]', 'android-src')
 
   return ConfigGroup(
     lunch_flavor = Single(basestring),
     repo = ConfigGroup(
       url = Single(basestring),
       branch = Single(basestring),
@@ skipping 21 matching lines @@
 def AOSP(c):
   c.lunch_flavor = 'full-eng'
   c.repo.url = 'https://android.googlesource.com/platform/manifest'
   c.repo.branch = 'android-4.4_r1'
   c.repo.sync_flags = ['-j6', '-d', '-f']
 
 @config_ctx(includes=['AOSP'])
 def AOSP_webview(c):
   c.sync_manifest_override = Path('[CHECKOUT]', 'android_webview', 'buildbot',
                                   'aosp_manifest.xml')