Adds new logging type SYSLOG which logs to the system log.

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
 
 
 class MockInputApi(object):
   """Mock class for the InputApi class.
 
   This class can be used for unittests for presubmit by initializing the files
   attribute as the list of changed files.
   """
 
   def __init__(self):
     self.json = json
     self.re = re
     self.os_path = os.path
     self.python_executable = sys.executable
+    self.platform = sys.platform
     self.subprocess = subprocess
     self.files = []
     self.is_committing = False
     self.change = MockChange([])
 
   def AffectedFiles(self, file_filter=None, include_deletes=False):
     return self.files
 
   def AffectedSourceFiles(self, file_filter=None):
     return self.files
@@ skipping 80 matching lines @@
     return self._local_path
 
   def rfind(self, p):
     """os.path.basename is called on MockFile so we need an rfind method."""
     return self._local_path.rfind(p)
 
   def __getitem__(self, i):
     """os.path.basename is called on MockFile so we need a get method."""
     return self._local_path[i]
 
+  def __len__(self):
+    """os.path.basename is called on MockFile so we need a len method."""
+    return len(self._local_path)
+
 
 class MockAffectedFile(MockFile):
   def AbsoluteLocalPath(self):
     return self._local_path
 
 
 class MockChange(object):
   """Mock class for Change class.
 
   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