Update gtest-parallel and introduce gtest-parallel-wrapper.

tools/mb/mb.py

 #!/usr/bin/env python
 # Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 """MB - the Meta-Build wrapper around GYP and GN
@@ skipping 1099 matching lines @@
           '-v'
       ]
       cmdline = (['./../../build/android/test_wrapper/logdog_wrapper.py']
                  + logdog_command + test_cmdline)
     elif use_x11 and test_type == 'windowed_test_launcher':
       extra_files = [
           'xdisplaycheck',
           '../../testing/test_env.py',
           '../../testing/xvfb.py',
           '../../third_party/gtest-parallel/gtest-parallel',
+          '../../third_party/gtest-parallel/gtest-parallel-wrapper.py',
       ]
       cmdline = [
-        '../../testing/xvfb.py',
-        '.',
-        'python',
-        '../../third_party/gtest-parallel/gtest-parallel',
+          '../../testing/xvfb.py',
+          '.',
+          '../../third_party/gtest-parallel/gtest-parallel-wrapper.py',
       ] + common_cmdline
     elif test_type in ('windowed_test_launcher', 'console_test_launcher'):
       extra_files = [
           '../../testing/test_env.py',
           '../../third_party/gtest-parallel/gtest-parallel',
+          '../../third_party/gtest-parallel/gtest-parallel-wrapper.py',
       ]
       cmdline = [
           '../../testing/test_env.py',
-          'python',
-          '../../third_party/gtest-parallel/gtest-parallel',
+          '../../third_party/gtest-parallel/gtest-parallel-wrapper.py',
       ] + common_cmdline
     elif test_type == 'non_parallel_console_test_launcher':
       extra_files = [
           '../../testing/test_env.py',
       ]
       cmdline = [
           '../../testing/test_env.py',
       ] + common_cmdline
     else:
       self.WriteFailureAndRaise('No command line for %s found (test type %s).'
@@ skipping 407 matching lines @@
   # Then check to see if the arg contains any metacharacters other than
   # double quotes; if it does, quote everything (including the double
   # quotes) for safety.
   if any(a in UNSAFE_FOR_CMD for a in arg):
     arg = ''.join('^' + a if a in ALL_META_CHARS else a for a in arg)
   return arg
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))