Make blink_trybot recipe work on windows

scripts/slave/annotated_run.py

 #!/usr/bin/env python
 # Copyright (c) 2013 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.
 
 """Entry point for fully-annotated builds.
 
 This script is part of the effort to move all builds to annotator-based
 systems. Any builder configured to use the AnnotatorFactory.BaseFactory()
 found in scripts/master/factory/annotator_factory.py executes a single
@@ skipping 43 matching lines @@
 'step_history' is an OrderedDict of {stepname -> StepData}, always representing
     the current history of what steps have run, what they returned, and any
     json data they emitted. Additionally, the OrderedDict has the following
     convenience functions defined:
       * last_step   - Returns the last step that ran or None
       * nth_step(n) - Returns the N'th step that ran or None
 
 'failed' is a boolean representing if the build is in a 'failed' state.
 """
 
-import collections
 import inspect
 import optparse
 import os
 import subprocess
 import sys
 
+import common.python26_polyfill  # pylint: disable=W0611
+import collections  # Import after polyfill to get OrderedDict on 2.6
+
 from common import annotator
 from common import chromium_utils
 from slave import recipe_api
 
 SCRIPT_PATH = os.path.dirname(os.path.abspath(__file__))
 BUILD_ROOT = os.path.dirname(os.path.dirname(SCRIPT_PATH))
 ROOT_PATH = os.path.abspath(os.path.join(
   SCRIPT_PATH, os.pardir, os.pardir, os.pardir))
 MODULE_DIRS = [os.path.join(x, 'recipe_modules') for x in [
   SCRIPT_PATH,
@@ skipping 208 matching lines @@
       s.step_text('gclient sync failed!')
       s.step_warnings()
     os.environ['RUN_SLAVE_UPDATED_SCRIPTS'] = '1'
     return True
 
 
 if __name__ == '__main__':
   if UpdateScripts():
     os.execv(sys.executable, [sys.executable] + sys.argv)
   sys.exit(main(sys.argv))