[tools/perf] Update code to reference py_utils.cloud_storage

content/test/gpu/page_sets/PRESUBMIT.py

 # 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.
 
 """Presubmit script for changes affecting content/test/gpu/page_sets/.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
 for more details about the presubmit API built into depot_tools.
 """
 
 import os
 import sys
 
 
 def _GetChromiumSrcDir(input_api):
   return input_api.os_path.abspath(input_api.os_path.join(
       input_api.PresubmitLocalPath(), '..', '..', '..', '..'))
 
 
 def _CheckWprShaFiles(input_api, output_api):
   """Check whether the wpr sha files have matching URLs."""
   old_sys_path = sys.path
   try:
-    catapult_base_path = input_api.os_path.join(
-        _GetChromiumSrcDir(input_api), 'third_party', 'catapult',
-        'catapult_base')
-    sys.path.insert(1, catapult_base_path)
-    from catapult_base import cloud_storage  # pylint: disable=import-error
+    py_utils_path = input_api.os_path.join(
+        _GetChromiumSrcDir(input_api), 'third_party', 'catapult', 'common',
+        'py_utils')
+    sys.path.insert(1, py_utils_path)
+    from py_utils import cloud_storage  # pylint: disable=import-error
   finally:
     sys.path = old_sys_path
 
   results = []
   for affected_file in input_api.AffectedFiles(include_deletes=False):
     filename = affected_file.AbsoluteLocalPath()
     if not filename.endswith('wpr.sha1'):
       continue
     expected_hash = cloud_storage.ReadHash(filename)
     is_wpr_file_uploaded = any(
@@ skipping 36 matching lines @@
 def CheckChangeOnUpload(input_api, output_api):
   results = []
   results.extend(_CommonChecks(input_api, output_api))
   return results
 
 
 def CheckChangeOnCommit(input_api, output_api):
   results = []
   results.extend(_CommonChecks(input_api, output_api))
   return results