[tools/perf] Remove default values of benchmark_dirs and top_level_dir in chromium_config module (R…

tools/perf/record_wpr

 #!/usr/bin/env python
 # Copyright 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.
 import os
 import sys
 
 
 from chrome_telemetry_build import chromium_config
-sys.path.append(chromium_config.GetTelemetryDir())
+from core import path_util
+path_util.AddTelemetryToPath()
 
 from telemetry import record_wpr
 
 # This is required to resolve importing davclient in tools/perf/third_party/
 # when record_wpr try to dynamically discover benchmark classes.
 import third_party  # pylint: disable=unused-import
 
 
 _WARNING_PATTERN = '\033[93m%s\033[0m'  # Use yellow color for warning.
 
 
 def _WarnPythonVersion():
   print (_WARNING_PATTERN %
          ("Your system python's version is less than 2.7.9. "
           'For best recording results, please run record_wpr with Python '
           'version 2.7.9 or after (See '
           'https://github.com/chromium/web-page-replay/issues/73 '
           'for more information).\n'
           'For instructions on how to upgrade Python on Ubuntu 14.04, see:\n'
           'http://mbless.de/blog/2016/01/09/upgrade-to-python-2711-on-ubuntu-1404-lts.html'))
 
 
 if __name__ == '__main__':
   if sys.version_info < (2, 7, 9):
     _WarnPythonVersion()
-  sys.exit(record_wpr.Main(environment=chromium_config.ChromiumConfig()))
+  config = chromium_config.ChromiumConfig(
+      benchmark_dirs=[path_util.GetPerfBenchmarksDir()],
+      top_level_dir=path_util.GetPerfDir())
+  sys.exit(record_wpr.Main(environment=config))