Add a telemetry-based gpu_tests folder

tools/perf/run_multipage_benchmarks

 #!/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.
 import imp
 import os
 import sys
 import urllib
 
 # Directory path in which to save bootstrap files.
 BOOTSTRAPPED_FILES_DIR = 'support/bootstrap_files'
 
 
 def bootstrapIfNeeded(module_name, module_path, module_deps_url):
   """Ensures that the given module_name is available, grab from URL if not."""
   try:
     imp.find_module(module_name)
     return
   except ImportError:
     sys.path.append(os.path.join(os.path.dirname(__file__),
                                  BOOTSTRAPPED_FILES_DIR,
-                                 module_path)) 
+                                 module_path))
     try:
       imp.find_module(module_name)
       return
     except ImportError:
       bootstrap_txt = urllib.urlopen('http://src.chromium.org/viewvc/chrome/' +
                                      'trunk/src/tools/telemetry/tools/' +
                                      'telemetry_bootstrap.py').read()
       bootstrap = imp.new_module('bootstrap')
       exec bootstrap_txt in bootstrap.__dict__
       bootstrap.DownloadDepsURL(os.path.join(os.path.dirname(__file__),
                                              BOOTSTRAPPED_FILES_DIR),
                                 module_deps_url)
 
 
 if __name__ == '__main__':
   bootstrapIfNeeded('perf_tools', 'src/tools/perf',
                     'http://src.chromium.org/viewvc/chrome/trunk/src/tools/' +
                     'perf/perf_lib/bootstrap_deps')
   import perf_tools
   from telemetry.page import multi_page_benchmark_runner
   benchmark_dir = os.path.join(os.path.dirname(__file__), 'perf_tools')
   sys.exit(multi_page_benchmark_runner.Main(benchmark_dir))