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

PRESUBMIT_test_mocks.py

Index: PRESUBMIT_test_mocks.py
diff --git a/PRESUBMIT_test_mocks.py b/PRESUBMIT_test_mocks.py
index 109b782c887821a60ce79cb91498643c58356c0e..772f405725be0f575c193ad0ecac46d93d973d06 100644
--- a/PRESUBMIT_test_mocks.py
+++ b/PRESUBMIT_test_mocks.py
@@ -22,6 +22,7 @@ class MockInputApi(object):
     self.os_path = os.path
     self.platform = sys.platform
     self.python_executable = sys.executable
+    self.platform = sys.platform
     self.subprocess = subprocess
     self.files = []
     self.is_committing = False
@@ -122,6 +123,10 @@ class MockFile(object):
     """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):