Changes to improve multiprocessing PRESUBMIT support in Windows

tests/presubmit_unittest.py

 #!/usr/bin/env python
 # Copyright (c) 2012 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 presubmit_support.py and presubmit_canned_checks.py."""
 
 # pylint: disable=E1101,E1103
 
 import StringIO
@@ skipping 2511 matching lines @@
     input_api.environ = self.mox.CreateMock(os.environ)
     input_api.environ.copy().AndReturn({})
     input_api.AffectedSourceFiles(mox.IgnoreArg()).AndReturn(True)
     input_api.PresubmitLocalPath().AndReturn('/foo')
     input_api.PresubmitLocalPath().AndReturn('/foo')
     input_api.os_walk('/foo').AndReturn([('/foo', [], ['file1.py'])])
     pylint = os.path.join(_ROOT, 'third_party', 'pylint.py')
     pylintrc = os.path.join(_ROOT, 'pylintrc')
 
     CommHelper(input_api,
-        ['pyyyyython', pylint, '--args-on-stdin', '--disable=cyclic-import',
-         '--jobs=2'],
-        env=mox.IgnoreArg(), stdin='file1.py\n--rcfile=%s' % pylintrc)
+        ['pyyyyython', pylint, '--args-on-stdin'],
+        env=mox.IgnoreArg(), stdin=
+               '--rcfile=%s\n--disable=cyclic-import\n--jobs=2\nfile1.py'
+               % pylintrc)
     CommHelper(input_api,
-        ['pyyyyython', pylint, '--args-on-stdin', '--disable=all',
-         '--enable=cyclic-import'],
-        env=mox.IgnoreArg(), stdin='file1.py\n--rcfile=%s' % pylintrc)
+        ['pyyyyython', pylint, '--args-on-stdin'],
+        env=mox.IgnoreArg(), stdin=
+               '--rcfile=%s\n--disable=all\n--enable=cyclic-import\nfile1.py'
+               % pylintrc)
     self.mox.ReplayAll()
 
     results = presubmit_canned_checks.RunPylint(
         input_api, presubmit.OutputApi)
     self.assertEquals([], results)
     self.checkstdout('')
 
   def testCheckBuildbotPendingBuildsBad(self):
     input_api = self.MockInputApi(None, True)
     connection = self.mox.CreateMockAnything()
@@ skipping 350 matching lines @@
         owners_check=False)
     self.assertEqual(1, len(results))
     self.assertEqual(
         'Found line ending with white spaces in:', results[0]._message)
     self.checkstdout('')
 
 
 if __name__ == '__main__':
   import unittest
   unittest.main()