Implement Blink-in-JS for DOM attributes

Source/bindings/templates/interface_base.cpp

 // 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.
 
 // This file has been auto-generated by {{code_generator}}. DO NOT MODIFY!
 
 #include "config.h"
 {% filter conditional(conditional_string) %}
 #include "{{v8_class}}.h"
 
@@ skipping 39 matching lines @@
                                 'WrapperTypeObjectPrototype' %}
 const WrapperTypeInfo {{v8_class}}::wrapperTypeInfo = { gin::kEmbedderBlink, {{v8_class}}::domTemplate, {{v8_class}}::derefObject, {{to_active_dom_object}}, {{to_event_target}}, {{visit_dom_wrapper}}, {{v8_class}}::installPerContextEnabledMethods, {{parent_wrapper_type_info}}, {{wrapper_type_prototype}}, {{gc_type}} };
 
 namespace {{cpp_class}}V8Internal {
 
 template <typename T> void V8_USE(T) { }
 
 {# Attributes #}
 {% from 'attributes.cpp' import constructor_getter_callback,
        attribute_getter, attribute_getter_callback,
-       attribute_setter, attribute_setter_callback
-   with context %}
+       attribute_setter, attribute_setter_callback,
+       attribute_getter_implemented_in_private_script,
+       attribute_setter_implemented_in_private_script
+       with context %}
 {% for attribute in attributes if not attribute.constructor_type %}
+{% if attribute.is_implemented_in_private_script %}
+{{attribute_getter_implemented_in_private_script(attribute)}}
+{% if not attribute.is_read_only or attribute.put_forwards %}
+{{attribute_setter_implemented_in_private_script(attribute)}}
+{% endif %}
+{% endif %}
 {% for world_suffix in attribute.world_suffixes %}
 {% if not attribute.has_custom_getter %}
 {{attribute_getter(attribute, world_suffix)}}
 {% endif %}
 {{attribute_getter_callback(attribute, world_suffix)}}
 {% if not attribute.is_read_only or attribute.put_forwards %}
 {% if not attribute.has_custom_setter %}
 {{attribute_setter(attribute, world_suffix)}}
 {% endif %}
 {{attribute_setter_callback(attribute, world_suffix)}}
@@ skipping 75 matching lines @@
 {% block install_per_context_attributes %}{% endblock %}
 {% block install_per_context_methods %}{% endblock %}
 {% block to_active_dom_object %}{% endblock %}
 {% block to_event_target %}{% endblock %}
 {% block get_shadow_object_template %}{% endblock %}
 {% block wrap %}{% endblock %}
 {% block create_wrapper %}{% endblock %}
 {% block deref_object_and_to_v8_no_inline %}{% endblock %}
 } // namespace WebCore
 {% endfilter %}