bindings: Retires ScriptWrappableBase mostly.

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 9a6b9d91065a3d99a44c46a3d295c09078e7e884..27c226924b329a263141db566aaa18d2d473251f 100644
--- a/Source/bindings/templates/interface_base.cpp
+++ b/Source/bindings/templates/interface_base.cpp
@@ -12,7 +12,6 @@
 #include "{{filename}}"
 {% endfor %}
 
-{% block initialize_script_wrappable %}{% endblock %}
 namespace blink {
 {% set to_active_dom_object = '%s::toActiveDOMObject' % v8_class
                               if is_active_dom_object else '0' %}
@@ -30,7 +29,6 @@ namespace blink {
 {% if not is_partial %}
 {{wrapper_type_info_const}}WrapperTypeInfo {{v8_class}}::wrapperTypeInfo = { gin::kEmbedderBlink, {{dom_template}}, {{v8_class}}::refObject, {{v8_class}}::derefObject, {{v8_class}}::trace, {{to_active_dom_object}}, {{to_event_target}}, {{visit_dom_wrapper}}, {{v8_class}}::installConditionallyEnabledMethods, {{v8_class}}::installConditionallyEnabledProperties, {{parent_wrapper_type_info}}, WrapperTypeInfo::{{wrapper_type_prototype}}, WrapperTypeInfo::{{wrapper_class_id}}, WrapperTypeInfo::{{lifetime}}, WrapperTypeInfo::{{gc_type}} };
 
-{% if is_script_wrappable %}
 // This static member must be declared by DEFINE_WRAPPERTYPEINFO in {{cpp_class}}.h.
 // For details, see the comment of DEFINE_WRAPPERTYPEINFO in
 // bindings/core/v8/ScriptWrappable.h.
@@ -40,7 +38,6 @@ template<>
 const WrapperTypeInfo& {{cpp_class}}::s_wrapperTypeInfo = {{v8_class}}::wrapperTypeInfo;
 
 {% endif %}
-{% endif %}
 {% if not is_array_buffer_or_view %}
 namespace {{cpp_class_or_partial}}V8Internal {
 {% if has_partial_interface %}