New expect_tests UI

expect_tests/type_definitions.py

 # 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.
 
 from contextlib import contextmanager
 import copy
 import inspect
 import os
 import re
-import sys
 
 from collections import namedtuple
 
 # These have to do with deriving classes from namedtuple return values.
 # Pylint can't tell that namedtuple returns a new-style type() object.
 #
 # "no __init__ method" pylint: disable=W0232
 # "use of super on an old style class" pylint: disable=E1002
 
 UnknownError = namedtuple('UnknownError', 'message')
 NoMatchingTestsError = namedtuple('NoMatchingTestsError', '')
 Result = namedtuple('Result', 'data')
 MultiResult = namedtuple('MultiResult', 'results')
 
+
 class ResultStageAbort(Exception):
   pass
 
 
 class Failure(object):
   pass
 
 
 class TestError(namedtuple('TestError', 'test message log_lines')):
   def __new__(cls, test, message, log_lines=()):
@@ skipping 483 matching lines @@
         print 'UNHANDLED:', obj
       return Failure()
 
     def finalize(self, aborted):
       """Called after __call__() has been called for all results.
 
       @param aborted: True if the user aborted the run.
       @type aborted: bool
       """
       pass