Fixing bugs introduced by new presubmit changes.

PRESUBMIT_test_mocks.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.
 
 import json
 import os
 import re
 import subprocess
 import sys
 
@@ skipping 22 matching lines @@
 
   def ReadFile(self, filename, mode='rU'):
     for file_ in self.files:
       if file_.LocalPath() == filename:
         return '\n'.join(file_.NewContents())
     # Otherwise, file is not in our mock API.
     raise IOError, "No such file or directory: '%s'" % filename
 
 
 class MockOutputApi(object):
-  ""Mock class for the OutputApi class.
+  """Mock class for the OutputApi class.
 
   An instance of this class can be passed to presubmit unittests for outputing
   various types of results.
   """
 
   class PresubmitResult(object):
     def __init__(self, message, items=None, long_text=''):
       self.message = message
       self.items = items
       self.long_text = long_text
@@ skipping 46 matching lines @@
 
   This class can be used in presubmit unittests to mock the query of the
   current change.
   """
 
   def __init__(self, changed_files):
     self._changed_files = changed_files
 
   def LocalPaths(self):
     return self._changed_files