gclient: explicitly set checkout cwd for runhooks

recipe_modules/gclient/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.
 
 from recipe_engine import recipe_api
 
 
 class RevisionResolver(object):
   """Resolves the revision based on build properties."""
 
@@ skipping 282 matching lines @@
         self.m.path['build'].join('scripts', 'slave', 'gclient_safe_revert.py'),
         ['.', self.m.path['depot_tools'].join('gclient',
                                               platform_ext={'win': '.bat'})],
         infra_step=True,
         **kwargs
     )
 
   def runhooks(self, args=None, name='runhooks', **kwargs):
     args = args or []
     assert isinstance(args, (list, tuple))
+    kwargs.setdefault('cwd', self.m.path['checkout'])
     return self(
       name, ['runhooks'] + list(args), infra_step=False, **kwargs)
 
   @property
   def is_blink_mode(self):
     """ Indicates wether the caller is to use the Blink config rather than the
     Chromium config. This may happen for one of two reasons:
     1. The builder is configured to always use TOT Blink. (factory property
        top_of_tree_blink=True)
     2. A try job comes in that applies to the Blink tree. (patch_project is
@@ skipping 56 matching lines @@
     """Updates config revision corresponding to patch_project.
 
     Useful for bot_update only, as this is the only consumer of gclient's config
     revision map. This doesn't overwrite the revision if it was already set.
     """
     assert patch_project is None or isinstance(patch_project, basestring)
     cfg = gclient_config or self.c
     path, revision = cfg.patch_projects.get(patch_project, (None, None))
     if path and revision and path not in cfg.revisions:
       cfg.revisions[path] = revision