Remove more logic out of trychange.py into scm.py.

tests/gclient_scm_test.py

 #!/usr/bin/python
 #
 # Copyright 2008-2009 Google Inc.  All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #      http://www.apache.org/licenses/LICENSE-2.0
 #
@@ skipping 342 matching lines @@
     self.enabled = self.CreateGitRepo(self.sample_git_import, self.base_path)
     SuperMoxBaseTestBase.setUp(self)
 
   def tearDown(self):
     SuperMoxBaseTestBase.tearDown(self)
     shutil.rmtree(self.root_dir)
 
   def testDir(self):
     members = [
         'COMMAND', 'Capture', 'CaptureStatus', 'FetchUpstreamTuple',
-        'GenerateDiff', 'GetBranchRef', 'GetEmail', 'GetSVNBranch',
+        'GenerateDiff', 'GetBranch', 'GetBranchRef', 'GetCheckoutRoot',
+        'GetEmail', 'GetPatchName', 'GetSVNBranch',
         'GetUpstream', 'IsGitSvn', 'ShortBranchName',
         'RunCommand', 'cleanup', 'diff', 'export', 'relpath', 'revert',
         'revinfo', 'runhooks', 'scm_name', 'status', 'update', 'url',
     ]
 
     # If you add a member, be sure to add the relevant test!
     self.compareMembers(gclient_scm.CreateSCM(url=self.url), members)
 
   def testRevertMissing(self):
     if not self.enabled:
@@ skipping 156 matching lines @@
                                 relpath=self.relpath)
     rev_info = scm.revinfo(options, (), None)
     self.assertEquals(rev_info, '069c602044c5388d2d15c3f875b057c852003458')
 
 
 if __name__ == '__main__':
   import unittest
   unittest.main()
 
 # vim: ts=2:sw=2:tw=80:et: