Use new common utils where possible.

slave/skia_slave_scripts/compare_gms.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.
 
 """ Compare the generated GM images to the baselines """
 
 # System-level imports
 import os
 import sys
 
 from build_step import BuildStep, BuildStepWarning
-from utils import misc
+from py.utils import misc
 import run_gm
 import skia_vars
 
 LIVE_REBASELINE_SERVER_BASEURL = (
     'http://skia-tree-status.appspot.com/redirect/rebaseline-server/'
     'static/view.html#/view.html')
 
 
 class CompareGMs(BuildStep):
   def _Run(self):
@@ skipping 14 matching lines @@
     if not success:
       if self._builder_name in may_fail_with_warning:
         raise BuildStepWarning('Expectations mismatch in %s!' %
                                json_summary_path)
       else:
         raise Exception('Expectations mismatch in %s!' % json_summary_path)
 
 
 if '__main__' == __name__:
   sys.exit(BuildStep.RunBuildStep(CompareGMs))