Make more tests pass on Windows.

PRESUBMIT.py

 # 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.
 
 """Top-level presubmit script for depot tools.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts for
 details on the presubmit API built into depot_tools.
 """
 
@@ skipping 33 matching lines @@
       'tests',
       whitelist=[r'.*test\.py$'],
       verbose=verbose))
   results.extend(RunGitClTests(input_api, output_api, verbose=verbose))
   return results
 
 
 def RunGitClTests(input_api, output_api, verbose):
   """Run all the shells scripts in the directory test.
   """
+  if input_api.platform == 'win32':
+    # Skip for now as long as the test scripts are bash scripts.
+    return []
+
   # First loads a local Rietveld instance.
   import sys
   old_sys_path = sys.path
   try:
     sys.path = [input_api.PresubmitLocalPath()] + sys.path
     from tests import local_rietveld  # pylint: disable=W0403
     server = local_rietveld.LocalRietveld()
   finally:
     sys.path = old_sys_path
 
@@ skipping 32 matching lines @@
   return CommonChecks(input_api, output_api)
 
 
 def CheckChangeOnCommit(input_api, output_api):
   output = []
   output.extend(CommonChecks(input_api, output_api))
   output.extend(input_api.canned_checks.CheckDoNotSubmit(
       input_api,
       output_api))
   return output