Make all the rest of the recipes explicitly specify GIT_MODE

scripts/slave/recipes/legion/legion.py

 # Copyright (c) 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.
 
 """Launches Legion tests."""
 
 from recipe_engine.types import freeze
 
 DEPS = [
     'depot_tools/bot_update',
@@ skipping 39 matching lines @@
     'controller_vars': CONTROLLER_VARS,
   },
 })
 
 
 def RunSteps(api):
   api.isolate.isolate_server = (
       'https://omnibot-legion-isolate-server.appspot.com')
   api.swarming.swarming_server = (
       'https://omnibot-legion-swarming-server.appspot.com')
-  api.gclient.set_config('chromium')
+  api.gclient.set_config('chromium', GIT_MODE=True)
   api.bot_update.ensure_checkout(force=True)
 
   for name, config in CONFIGS.iteritems():
     controller = api.legion.create_controller(
         name=name,
         path=api.path['checkout'].join(*config['controller_path']),
         os='Linux',
         config_vars=config['config_vars'],
         controller_vars=config['controller_vars']
     )
 
     for name, path in config['task_paths'].iteritems():
       api.legion.add_task_to_controller(
           controller=controller,
           name=name,
           path=api.path['checkout'].join(*path),
           config_vars=config['config_vars']
       )
 
     api.legion.execute(controller)
 
 
 def GenTests(api):
   yield api.test('basic') + api.properties.generic()