Make breakpad, gcl and presubmit_support dependencies optional

tests/trychange_unittest.py

 #!/usr/bin/python
 # Copyright (c) 2009 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 trychange.py."""
 
 import optparse
 
 # Local imports
@@ skipping 17 matching lines @@
     self.options.files = self.expected_files
     self.options.diff = None
     self.options.name = None
     self.options.email = None
 
 
 class TryChangeUnittest(TryChangeTestsBase):
   """General trychange.py tests."""
   def testMembersChanged(self):
     members = [
-      'EscapeDot', 'GIT', 'GetTryServerSettings', 'GuessVCS',
+      'EscapeDot', 'GIT', 'GuessVCS',
       'HELP_STRING', 'InvalidScript', 'NoTryServerAccess',
-      'SCM', 'SVN', 'TryChange', 'USAGE', 'breakpad',
-      'datetime', 'gcl', 'gclient_utils', 'getpass', 'logging',
-      'optparse', 'os', 'presubmit_support', 'scm', 'shutil', 'socket',
+      'SCM', 'SVN', 'TryChange', 'USAGE',
+      'breakpad', 'datetime', 'gclient_utils', 'getpass', 'logging',
+      'optparse', 'os', 'scm', 'shutil', 'socket',
       'subprocess', 'sys', 'tempfile', 'urllib',
     ]
     # If this test fails, you should add the relevant test.
     self.compareMembers(trychange, members)
 
 
 class SVNUnittest(TryChangeTestsBase):
   """trychange.SVN tests."""
   def testMembersChanged(self):
     members = [
-      'GetFileNames', 'GetLocalRoot',
+      'GetBots', 'GetFileNames', 'GetLocalRoot',
     ]
     # If this test fails, you should add the relevant test.
     self.compareMembers(trychange.SVN, members)
 
   def testBasic(self):
     trychange.os.getcwd().AndReturn(self.fake_root)
     trychange.scm.SVN.GetCheckoutRoot(self.fake_root).AndReturn(self.fake_root)
     trychange.os.getcwd().AndReturn('pro')
     trychange.os.chdir(self.fake_root)
     trychange.scm.SVN.DiffItem(self.expected_files[0]).AndReturn('bleh')
     trychange.scm.SVN.DiffItem(self.expected_files[1]).AndReturn('blew')
     trychange.os.chdir('pro')
     trychange.scm.SVN.GetEmail(self.fake_root).AndReturn('georges@example.com')
     self.mox.ReplayAll()
     svn = trychange.SVN(self.options)
     self.assertEqual(svn.GetFileNames(), self.expected_files)
     self.assertEqual(svn.GetLocalRoot(), self.fake_root)
 
 
 class GITUnittest(TryChangeTestsBase):
   """trychange.GIT tests."""
   def testMembersChanged(self):
     members = [
-      'GetFileNames', 'GetLocalRoot',
+      'GetBots', 'GetFileNames', 'GetLocalRoot',
     ]
     # If this test fails, you should add the relevant test.
     self.compareMembers(trychange.GIT, members)
 
   def testBasic(self):
     trychange.gclient_utils.CheckCall(
         ['git', 'rev-parse', '--show-cdup']).AndReturn(self.fake_root)
     trychange.os.path.abspath(self.fake_root).AndReturn(self.fake_root)
     trychange.gclient_utils.CheckCall(
         ['git', 'cl', 'upstream']).AndReturn('random branch')
     trychange.gclient_utils.CheckCall(
         ['git', 'diff-tree', '-p', '--no-prefix', 'random branch', 'HEAD']
         ).AndReturn('This is a dummy diff\n+3\n-4\n')
     trychange.gclient_utils.CheckCall(
         ['git', 'symbolic-ref', 'HEAD']).AndReturn('refs/heads/another branch')
     trychange.scm.GIT.GetEmail('.').AndReturn('georges@example.com')
     self.mox.ReplayAll()
     git = trychange.GIT(self.options)
     self.assertEqual(git.GetFileNames(), self.expected_files)
     self.assertEqual(git.GetLocalRoot(), self.fake_root)
 
 
 if __name__ == '__main__':
   import unittest
   unittest.main()