Refactor site_fmap, flashrom_utils and gbb_utils module into client/cros.

client/cros/gbb_util.py

 #!/usr/bin/env 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.
 
 """Provides convenience routines to access the GBB on the current BIOS.
 
    GBBUtility is a wrapper of gbb_utility program.
 """
 
 import os
 import tempfile
 
+from autotest_lib.client.bin import utils
 from autotest_lib.client.common_lib import error
-from autotest_lib.client.common_lib import flashrom_util
-from autotest_lib.client.common_lib import utils
+import common
+import flashrom_util
 
 
 class GBBUtility(object):
     """GBBUtility is a wrapper of gbb_utility program.
 
     It accesses the GBB on the current BIOS image.
     """
     def __init__(self,
                  gbb_command='gbb_utility',
                  temp_dir=None,
@@ skipping 157 matching lines @@
                 self._remove_temp_file(rootkey_file)
             self._need_commit = False
             self._clear_cached()
 
 
     def discard(self):
         """Discard all uncommitted changes."""
         if self._need_commit:
             self._need_commit = False
             self._clear_cached()