[Bindings] Unify a template block 'prepare_prototype_and_interface_object'

third_party/WebKit/Source/bindings/templates/interface.cpp.tmpl

 {% extends 'interface_base.cpp.tmpl' %}
 
 {% set has_prepare_prototype_and_interface_object =
     unscopables or has_conditional_attributes_on_prototype or
     methods | conditionally_exposed(is_partial) %}
 {% set prepare_prototype_and_interface_object_func =
     '%s::preparePrototypeAndInterfaceObject' % v8_class
     if has_prepare_prototype_and_interface_object
     else 'nullptr' %}
 
@@ skipping 844 matching lines @@
   return value->Is{{interface_name}}() ? toImpl(v8::Local<v8::Object>::Cast(value)) : nullptr;
 {% else %}
   return hasInstance(value, isolate) ? toImpl(v8::Local<v8::Object>::Cast(value)) : nullptr;
 {% endif %}
 }
 
 {% endblock %}
 
 
 {##############################################################################}
-{% block prepare_prototype_and_interface_object %}
-{% from 'methods.cpp.tmpl' import install_conditionally_enabled_methods with context %}
-{% if has_prepare_prototype_and_interface_object %}
-void {{v8_class}}::preparePrototypeAndInterfaceObject(v8::Local<v8::Context> context, const DOMWrapperWorld& world, v8::Local<v8::Object> prototypeObject, v8::Local<v8::Function> interfaceObject, v8::Local<v8::FunctionTemplate> interfaceTemplate) {
-  v8::Isolate* isolate = context->GetIsolate();
-{% if unscopables %}
-  {{install_unscopables() | indent(2)}}
-{% endif %}
-{% if has_conditional_attributes_on_prototype %}
-  {{install_conditionally_enabled_attributes_on_prototype() | indent(2)}}
-{% endif %}
-{% if methods | conditionally_exposed(is_partial) %}
-  {{install_conditionally_enabled_methods() | indent(2)}}
-{% endif %}
-}
-
-{% endif %}
-{% endblock %}
-
-
-{##############################################################################}
-{% macro install_unscopables() %}
-v8::Local<v8::Name> unscopablesSymbol(v8::Symbol::GetUnscopables(isolate));
-v8::Local<v8::Object> unscopables;
-if (v8CallBoolean(prototypeObject->HasOwnProperty(context, unscopablesSymbol)))
-  unscopables = prototypeObject->Get(context, unscopablesSymbol).ToLocalChecked().As<v8::Object>();
-else
-  unscopables = v8::Object::New(isolate);
-{% for name, runtime_enabled_feature_name in unscopables %}
-{% filter runtime_enabled(runtime_enabled_feature_name) %}
-unscopables->CreateDataProperty(context, v8AtomicString(isolate, "{{name}}"), v8::True(isolate)).FromJust();
-{% endfilter %}
-{% endfor %}
-prototypeObject->CreateDataProperty(context, unscopablesSymbol, unscopables).FromJust();
-{% endmacro %}
-
-
-{##############################################################################}
-{% macro install_conditionally_enabled_attributes_on_prototype() %}
-{% from 'attributes.cpp.tmpl' import attribute_configuration with context %}
-ExecutionContext* executionContext = toExecutionContext(context);
-v8::Local<v8::Signature> signature = v8::Signature::New(isolate, interfaceTemplate);
-{% for attribute in attributes if (attribute.exposed_test or attribute.secure_context_test) and attribute.on_prototype %}
-{% filter exposed(attribute.exposed_test) %}
-{% filter secure_context(attribute.secure_context_test) %}
-{% filter runtime_enabled(attribute.runtime_enabled_feature_name) %}
-const V8DOMConfiguration::AccessorConfiguration accessorConfiguration = {{attribute_configuration(attribute)}};
-V8DOMConfiguration::installAccessor(isolate, world, v8::Local<v8::Object>(), prototypeObject, interfaceObject, signature, accessorConfiguration);
-{% endfilter %}{# runtime_enabled #}
-{% endfilter %}{# secure_context #}
-{% endfilter %}{# exposed #}
-{% endfor %}
-{% endmacro %}
-
-
-{##############################################################################}
 {% block partial_interface %}
 {% if has_partial_interface %}
 {% if needs_runtime_enabled_installer %}
 InstallRuntimeEnabledFunction {{v8_class}}::install{{v8_class}}RuntimeEnabledFunction =
     &{{v8_class}}::installRuntimeEnabledFeatures;
 {% endif %}
 
 InstallTemplateFunction {{v8_class}}::install{{v8_class}}TemplateFunction =
     &{{v8_class}}::install{{v8_class}}Template;
 
@@ skipping 17 matching lines @@
 }
 
 {% for method in methods if method.overloads and method.overloads.has_partial_overloads %}
 void {{v8_class}}::register{{method.name | blink_capitalize}}MethodForPartialInterface(void (*method)(const v8::FunctionCallbackInfo<v8::Value>&)) {
   {{cpp_class}}V8Internal::{{method.name}}MethodForPartialInterface = method;
 }
 
 {% endfor %}
 {% endif %}
 {% endblock %}