Enforce cwd for GIT functions

trychange.py

 #!/usr/bin/env python
 # Copyright (c) 2011 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.
 
 """Client-side script to send a try job to the try server. It communicates to
 the try server by either writting to a svn repository or by directly connecting
 to the server by HTTP.
 """
 
@@ skipping 257 matching lines @@
     if not self.diff_against:
       self.diff_against = scm.GIT.GetUpstreamBranch(self.checkout_root)
       if not self.diff_against:
         raise NoTryServerAccess(
             "Unable to determine default branch to diff against. "
             "Verify this branch is set up to track another"
             "(via the --track argument to \"git checkout -b ...\"")
     logging.info("GIT(%s)" % self.checkout_root)
 
   def CaptureStatus(self):
-    return scm.GIT.CaptureStatus(self.checkout_root.replace(os.sep, '/'),
-                                 self.diff_against)
+    return scm.GIT.CaptureStatus(
+        [],
+        self.checkout_root.replace(os.sep, '/'),
+        self.diff_against)
 
   def GenerateDiff(self):
-    return scm.GIT.GenerateDiff(self.checkout_root, files=self.files,
-                                full_move=True,
-                                branch=self.diff_against)
+    return scm.GIT.GenerateDiff(
+        self.checkout_root,
+        files=self.files,
+        full_move=True,
+        branch=self.diff_against)
 
 
 def _ParseSendChangeOptions(options):
   """Parse common options passed to _SendChangeHTTP and _SendChangeSVN."""
   values = {}
   if options.email:
     values['email'] = options.email
   values['user'] = options.user
   values['name'] = options.name
   if options.bot:
@@ skipping 511 matching lines @@
     return 1
   except (gclient_utils.Error, subprocess2.CalledProcessError), e:
     print >> sys.stderr, e
     return 1
   return 0
 
 
 if __name__ == "__main__":
   fix_encoding.fix_encoding()
   sys.exit(TryChange(None, None, False))