Use new common utils where possible.

slave/skia_slave_scripts/chrome_drt_canary_upload_results.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.
 
 """ Run this before running any tests. """
 
 from build_step import BuildStep
-from utils import shell_utils
+from py.utils import shell_utils
 from utils import upload_to_bucket
 import os
 import posixpath
 import skia_vars
 import sys
 
 
 GS_DRT_SUBDIR = 'chrome_drt_results'
 
 
@@ skipping 14 matching lines @@
     print 'To download the tarball, run this command:'
     gs_url = posixpath.join(
         skia_vars.GetGlobalVariable('googlestorage_bucket'),
         GS_DRT_SUBDIR,
         result_tarball)
     print 'gsutil cp %s <local_dir>' % gs_url
 
 
 if '__main__' == __name__:
   sys.exit(BuildStep.RunBuildStep(ChromeDRTCanaryUploadResults))