Update from chromium https://crrev.com/302282

testing/scripts/telemetry_unittests.py

 #!/usr/bin/env python
 # Copyright 2014 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 json
 import os
 import sys
 
 
 import common
 
 
 def main_run(args):
   filter_tests = []
   if args.filter_file:
     filter_tests = json.load(args.filter_file)
 
   with common.temporary_file() as tempfile_path:
-    rc = common.run_command([
-        sys.executable,
-        os.path.join(args.paths['build'], 'scripts', 'tools', 'runit.py'),
-        '--show-path',
-        sys.executable,
-        os.path.join(args.paths['build'], 'scripts', 'slave', 'runtest.py'),
-        '--target', args.build_config_fs,
-        '--xvfb',
+    rc = common.run_runtest(args, [
         '--annotate', 'gtest',
         '--test-type', 'telemetry_unittests',
-        '--builder-name', args.properties['buildername'],
-        '--slave-name', args.properties['slavename'],
-        '--build-number', str(args.properties['buildnumber']),
         '--run-python-script',
         os.path.join(common.SRC_DIR, 'tools', 'telemetry', 'run_tests'),
         '--browser', args.build_config_fs.lower(),
         '--retry-limit', '3',
         '--write-full-results-to', tempfile_path,
     ] + filter_tests)
 
     with open(tempfile_path) as f:
       results = json.load(f)
 
@@ skipping 12 matching lines @@
 def main_compile_targets(args):
   json.dump(['chrome'], args.output)
 
 
 if __name__ == '__main__':
   funcs = {
     'run': main_run,
     'compile_targets': main_compile_targets,
   }
   sys.exit(common.run_script(sys.argv[1:], funcs))