Bake in Python's unittest command line args.

tools/chrome_proxy/webdriver/common.py

 # Copyright 2016 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 argparse
 import json
 import os
 import re
 import socket
 import shlex
@@ skipping 24 matching lines @@
     'be considered valid')
   parser.add_argument('--android', help='If given, attempts to run the test on '
     'Android via adb. Ignores usage of --chrome_exec', action='store_true')
   parser.add_argument('--android_package', nargs=1,
     default='com.android.chrome', help='Set the android package for Chrome')
   parser.add_argument('--chrome_exec', nargs=1, type=str, help='The path to '
     'the Chrome or Chromium executable')
   parser.add_argument('chrome_driver', nargs=1, type=str, help='The path to '
     'the ChromeDriver executable. If not given, the default system chrome '
     'will be used.')
+  parser.add_argument('-b', '--buffer', help='The standard output and standard '
+    'error streams are buffered during the test run. Output during a passing '
+    'test is discarded. Output is echoed normally on test fail or error and is '
+    'added to the failure messages.', action='store_true')
+  parser.add_argument('-c', '--catch', help='Control-C during the test run '
+    'waits for the current test to end and then reports all the results so '
+    'far. A second Control-C raises the normal KeyboardInterrupt exception.',
+    action='store_true')
+  parser.add_argument('-f', '--failfast', help='Stop the test run on the first '
+    'error or failure.', action='store_true')
   # TODO(robertogden): Log sys.argv here.
   return parser.parse_args(sys.argv[1:])
 
 def HandleException(test_name=None):
   """Writes the exception being handled and a stack trace to stderr.
 
   Args:
     test_name: The string name of the test that led to this exception.
   """
   sys.stderr.write("**************************************\n")
@@ skipping 323 matching lines @@
   @property
   def request_type(self):
     return self._request_type
 
   def ResponseHasViaHeader(self):
     return 'via' in self._response_headers and (self._response_headers['via'] ==
       self._flags.via_header_value)
 
   def WasXHR(self):
     return self.request_type == 'XHR'