Make v8 recipes explicitly set GIT_MODE

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 argparse
 import contextlib
 import datetime
 import difflib
 import random
 import re
@@ skipping 71 matching lines @@
     buildername = self.m.properties.get('buildername')
     master_dict = builders.get(mastername, {})
     self.bot_config = master_dict.get('builders', {}).get(buildername)
     assert self.bot_config, (
         'Unrecognized builder name %r for master %r.' % (
             buildername, mastername))
 
     kwargs = self.bot_config.get('v8_config_kwargs', {})
     self.set_config('v8', optional=True, **kwargs)
     self.m.chromium.set_config('v8', **kwargs)
-    self.m.gclient.set_config('v8', **kwargs)
+    self.m.gclient.set_config('v8', GIT_MODE=True, **kwargs)
 
     for c in self.bot_config.get('gclient_apply_config', []):
       self.m.gclient.apply_config(c)
     for c in self.bot_config.get('chromium_apply_config', []):
       self.m.chromium.apply_config(c)
     if self.m.tryserver.is_tryserver:
       self.init_tryserver()
     for c in self.bot_config.get('v8_apply_config', []):
       self.apply_config(c)
 
@@ skipping 1130 matching lines @@
   def report_culprits(self, culprit_range):
     assert culprit_range
     if len(culprit_range) > 1:
       text = 'Suspecting multiple commits'
     else:
       text = 'Suspecting %s' % culprit_range[0][:8]
 
     step_result = self.m.step(text, cmd=None)
     for culprit in culprit_range:
       step_result.presentation.links[culprit[:8]] = COMMIT_TEMPLATE % culprit