Fix small error in SimpleMock.

testing_support/auto_stub.py

 # Copyright (c) 2011 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 inspect
 import unittest
 
 
 class OrderedDict(object):
   """Incomplete and inefficient implementation of collections.OrderedDict."""
@@ skipping 38 matching lines @@
   def tearDown(self):
     """Restore all the mocked members."""
     if self._saved:
       for obj, items in self._saved.iteritems():
         for member, previous_value in items.iteritems():
           setattr(obj, member, previous_value)
 
 
 class SimpleMock(object):
   """Really simple manual class mock."""
-  calls = []
-
   def __init__(self, unit_test):
     """Do not call __init__ if you want to use the global call list to detect
     ordering across different instances.
     """
     self.calls = []
     self.unit_test = unit_test
     self.assertEquals = unit_test.assertEquals
 
   def pop_calls(self):
     """Returns the list of calls up to date.
@@ skipping 50 matching lines @@
     if hasattr(super(TestCase, self), 'assertIn'):
       return super(TestCase, self).assertIn(expr1, expr2, msg)
     if expr1 not in expr2:
       self.fail(msg or '%r not in %r' % (expr1, expr2))
 
   def assertLess(self, a, b, msg=None):
     if hasattr(super(TestCase, self), 'assertLess'):
       return super(TestCase, self).assertLess(a, b, msg)
     if not a < b:
       self.fail(msg or '%r not less than %r' % (a, b))