Revert of Fix pylint warnings in webkitpy/common/.

third_party/WebKit/Tools/Scripts/webkitpy/common/memoized.py

 # Copyright (c) 2010 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 14 matching lines @@
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 # Python does not (yet) seem to provide automatic memoization.  So we've
 # written a small decorator to do so.
 
 import functools
 
 
-# This class has a lower-case name because it is a decorator.
-class memoized(object):  # pylint: disable=invalid-name
+class memoized(object):
 
     def __init__(self, function):
         self._function = function
         self._results_cache = {}
 
     def __call__(self, *args):
         try:
             return self._results_cache[args]
         except KeyError:
             result = self._function(*args)
             self._results_cache[args] = result
             return result
         except TypeError as e:
             raise TypeError(
                 'Cannot call memoized function %s with unhashable '
                 'arguments: %s' % (self._function.__name__, e.message))
 
     # Use python "descriptor" protocol __get__ to appear
     # invisible during property access.
     def __get__(self, instance, owner):
         # Return a function partial with object already bound as self.
         return functools.partial(self.__call__, instance)