First pass to transition away for gclient_utils.Error and gclient_utils.CheckedCallError.

tests/gcl_unittest.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.
 
 """Unit tests for gcl.py."""
 
 # pylint is too confused.
 # pylint: disable=E1101,E1103,E1120,W0212,W0403
 
@@ skipping 76 matching lines @@
         'GetCodeReviewSetting', 'GetEditor', 'GetFilesNotInCL', 'GetInfoDir',
         'GetModifiedFiles', 'GetRepositoryRoot', 'ListFiles',
         'LoadChangelistInfoForMultiple', 'MISSING_TEST_MSG',
         'OptionallyDoPresubmitChecks', 'REPOSITORY_ROOT', 'REVIEWERS_REGEX',
         'RunShell', 'RunShellWithReturnCode', 'SVN',
         'TryChange', 'UnknownFiles', 'Warn',
         'attrs', 'breakpad', 'defer_attributes', 'fix_encoding',
         'gclient_utils', 'getpass',
         'json', 'main', 'need_change', 'need_change_and_args', 'no_args',
         'optparse', 'os', 'presubmit_support', 'random', 're',
-        'string', 'subprocess', 'sys', 'tempfile', 'time', 'upload',
-        'urllib2',
+        'string', 'subprocess', 'subprocess2', 'sys', 'tempfile', 'time',
+        'upload', 'urllib2',
     ]
     # If this test fails, you should add the relevant test.
     self.compareMembers(gcl, members)
 
   def testIsSVNMoved(self):
     # TODO(maruel): TEST ME
     pass
 
   def testGetSVNFileProperty(self):
     # TODO(maruel): TEST ME
@@ skipping 452 matching lines @@
     self.assertEquals(retval, 0)
     self.assertEquals(change_info.description,
         'deescription\n\nCommitted: http://view/12345')
     self.assertTrue(change_info._deleted)
     self.assertTrue(change_info._closed)
 
 
 if __name__ == '__main__':
   import unittest
   unittest.main()