Add [DoNotGenerateClassBindings] extended attribute

Source/bindings/templates/interface_base.cpp

Index: Source/bindings/templates/interface_base.cpp
diff --git a/Source/bindings/templates/interface_base.cpp b/Source/bindings/templates/interface_base.cpp
index f6c8704eea98f7a527613ce10987a39730a87ec9..e1ff6e4061fa0edc17898c7569579486da28f0c6 100644
--- a/Source/bindings/templates/interface_base.cpp
+++ b/Source/bindings/templates/interface_base.cpp
@@ -40,6 +40,7 @@
 #include "{{filename}}"
 {% endfor %}
 
+{% if has_class_bindings %}
 namespace WebCore {
 
 static void initializeScriptWrappableForInterface({{cpp_class}}* object)
@@ -61,6 +62,7 @@ void webCoreInitializeScriptWrappableForInterface(WebCore::{{cpp_class}}* object
     WebCore::initializeScriptWrappableForInterface(object);
 }
 
+{% endif %}
 namespace WebCore {
 {% set to_active_dom_object = '%s::toActiveDOMObject' % v8_class
                               if is_active_dom_object else '0' %}
@@ -174,6 +176,7 @@ template <typename T> void V8_USE(T) { }
 {% block get_shadow_object_template %}{% endblock %}
 {% block wrap %}{% endblock %}
 {% block create_wrapper %}{% endblock %}
-{% block deref_object_and_to_v8_no_inline %}{% endblock %}
+{% block deref_object %}{% endblock %}
+{% block to_v8_no_inline %}{% endblock %}
 } // namespace WebCore
 {% endfilter %}