Change default tracking branch for new workflow

cros_mark_as_stable.py

 #!/usr/bin/python
 
 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """This module uprevs a given package's ebuild to the next revision."""
 
 
 import fileinput
@@ skipping 18 matching lines @@
                      empty commit id's.""",
                      short_name='i')
 gflags.DEFINE_string('packages', '',
                      'Space separated list of packages to mark as stable.',
                      short_name='p')
 gflags.DEFINE_string('push_options', '',
                      'Options to use with git-cl push using push command.')
 gflags.DEFINE_string('srcroot',  '%s/trunk/src' % os.environ['HOME'],
                      'Path to root src directory.',
                      short_name='r')
-gflags.DEFINE_string('tracking_branch', 'origin',
+gflags.DEFINE_string('tracking_branch', 'cros/master',
                      'Used with commit to specify branch to track against.',
                      short_name='t')
 gflags.DEFINE_boolean('verbose', False,
                       'Prints out verbose information about what is going on.',
                       short_name='v')
 
 
 # Takes two strings, package_name and commit_id.
 _GIT_COMMIT_MESSAGE = \
   'Marking 9999 ebuild for %s with commit %s as stable.'
@@ skipping 322 matching lines @@
              'and reset the git repo yourself.' %
              (package_list[:index], overlay_directory))
       raise e
   elif command == 'push':
     _PushChange()
 
 
 if __name__ == '__main__':
   main(sys.argv)