Update tools/perf to use cloud_storage from catapult.

tools/perf/profile_creators/update_remote_extensions.py

 # Copyright 2015 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.
 
 import base64
 import csv
 import json
 import optparse
 import os
 import shutil
 import sys
 import tempfile
 import urllib2
 import zipfile
 
-sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..',
-    'telemetry'))
+sys.path.insert(1, os.path.abspath(os.path.join(
+        __file__, '..', '..')))
+from core import path_util
 
+
+path_util.AddCatapultBaseToPath()
 from catapult_base import cloud_storage
+
+path_util.AddTelemetryToPath()
 from telemetry.core import exceptions
 
+
 # Remote target upload directory in cloud storage for extensions.
 REMOTE_DIR = 'extension_set'
 
 # Target zip file.
 ZIP_NAME = 'extensions.zip'
 
 
 def _DownloadCrxFromCws(ext_id, dst):
   """Downloads CRX specified from Chrome Web Store.
 
@@ skipping 166 matching lines @@
   local_extensions_dir = tempfile.mkdtemp()
   try:
     _UpdateExtensionsInCloud(local_extensions_dir,
                              extension_csv, REMOTE_DIR)
   finally:
     shutil.rmtree(local_extensions_dir)
 
 if __name__ == '__main__':
   main()