v8binding: Fixes static readonly wrapper-returning attributes.

third_party/WebKit/Source/bindings/scripts/v8_attributes.py

 # Copyright (C) 2013 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 347 matching lines @@
         return CONTENT_ATTRIBUTE_GETTER_NAMES[base_idl_type]
     if 'URL' in attribute.extended_attributes:
         return 'GetURLAttribute'
     return 'FastGetAttribute'
 
 
 def is_keep_alive_for_gc(interface, attribute):
     idl_type = attribute.idl_type
     base_idl_type = idl_type.base_type
     extended_attributes = attribute.extended_attributes
+    if attribute.is_static:
+        return False
     return (
         # For readonly attributes, for performance reasons we keep the attribute
         # wrapper alive while the owner wrapper is alive, because the attribute
         # never changes.
         (attribute.is_read_only and
          idl_type.is_wrapper_type and
          # There are some exceptions, however:
          not(
              # Node lifetime is managed by object grouping.
              inherits_interface(interface.name, 'Node') or
@@ skipping 197 matching lines @@
 def is_constructor_attribute(attribute):
     return attribute.idl_type.name.endswith('Constructor')
 
 
 def is_named_constructor_attribute(attribute):
     return attribute.idl_type.name.endswith('ConstructorConstructor')
 
 
 def update_constructor_attribute_context(interface, attribute, context):
     context['needs_constructor_getter_callback'] = context['measure_as'] or context['deprecate_as']