IDL compiler: Window-specific code + Window-only features

Source/bindings/templates/methods.cpp

 {##############################################################################}
 {% macro generate_method(method, world_suffix) %}
 {% filter conditional(method.conditional_string) %}
 static void {{method.name}}{{method.overload_index}}Method{{world_suffix}}(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     {% if method.has_exception_state %}
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "{{method.name}}", "{{interface_name}}", info.Holder(), info.GetIsolate());
     {% endif %}
     {% if method.name in ['addEventListener', 'removeEventListener'] %}
     {{add_remove_event_listener_method(method.name) | indent}}
@@ skipping 260 matching lines @@
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 {% endfilter %}
 {% endmacro %}
 
 
 {##############################################################################}
 {% macro origin_safe_method_getter(method, world_suffix) %}
 static void {{method.name}}OriginSafeMethodGetter{{world_suffix}}(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
+    {% set signature = 'v8::Local<v8::Signature>()'
+                       if method.is_do_not_check_signature else
+                       'v8::Signature::New(info.GetIsolate(), %s::domTemplate(info.GetIsolate(), currentWorldType))' % v8_class %}
     {# FIXME: don't call GetIsolate() so often #}
     // This is only for getting a unique pointer which we can pass to privateTemplate.
     static int privateTemplateUniqueKey;
     WrapperWorldType currentWorldType = worldType(info.GetIsolate());
     V8PerIsolateData* data = V8PerIsolateData::from(info.GetIsolate());
     {# FIXME: 1 case of [DoNotCheckSignature] in Window.idl may differ #}
-    v8::Handle<v8::FunctionTemplate> privateTemplate = data->privateTemplate(currentWorldType, &privateTemplateUniqueKey, {{cpp_class}}V8Internal::{{method.name}}MethodCallback{{world_suffix}}, v8Undefined(), v8::Signature::New(info.GetIsolate(), {{v8_class}}::domTemplate(info.GetIsolate(), currentWorldType)), {{method.number_of_required_or_variadic_arguments}});
+    v8::Handle<v8::FunctionTemplate> privateTemplate = data->privateTemplate(currentWorldType, &privateTemplateUniqueKey, {{cpp_class}}V8Internal::{{method.name}}MethodCallback{{world_suffix}}, v8Undefined(), {{signature}}, {{method.number_of_required_or_variadic_arguments}});
 
     v8::Handle<v8::Object> holder = info.This()->FindInstanceInPrototypeChain({{v8_class}}::domTemplate(info.GetIsolate(), currentWorldType));
     if (holder.IsEmpty()) {
         // This is only reachable via |object.__proto__.func|, in which case it
         // has already passed the same origin security check
         v8SetReturnValue(info, privateTemplate->GetFunction());
         return;
     }
     {{cpp_class}}* imp = {{v8_class}}::toNative(holder);
     if (!BindingSecurity::shouldAllowAccessToFrame(info.GetIsolate(), imp->frame(), DoNotReportSecurityError)) {
         static int sharedTemplateUniqueKey;
-        v8::Handle<v8::FunctionTemplate> sharedTemplate = data->privateTemplate(currentWorldType, &sharedTemplateUniqueKey, {{cpp_class}}V8Internal::{{method.name}}MethodCallback{{world_suffix}}, v8Undefined(), v8::Signature::New(info.GetIsolate(), {{v8_class}}::domTemplate(info.GetIsolate(), currentWorldType)), {{method.number_of_required_or_variadic_arguments}});
+        v8::Handle<v8::FunctionTemplate> sharedTemplate = data->privateTemplate(currentWorldType, &sharedTemplateUniqueKey, {{cpp_class}}V8Internal::{{method.name}}MethodCallback{{world_suffix}}, v8Undefined(), {{signature}}, {{method.number_of_required_or_variadic_arguments}});
         v8SetReturnValue(info, sharedTemplate->GetFunction());
         return;
     }
 
     v8::Local<v8::Value> hiddenValue = getHiddenValue(info.GetIsolate(), info.This(), "{{method.name}}");
     if (!hiddenValue.IsEmpty()) {
         v8SetReturnValue(info, hiddenValue);
         return;
     }
 
@@ skipping 88 matching lines @@
     v8::Handle<v8::Object> wrapper = info.Holder();
     {% if is_constructor_raises_exception %}
     if (exceptionState.throwIfNeeded())
         return;
     {% endif %}
 
     V8DOMWrapper::associateObjectWithWrapper<{{v8_class}}>(impl.release(), &{{v8_class}}Constructor::wrapperTypeInfo, wrapper, info.GetIsolate(), WrapperConfiguration::Dependent);
     v8SetReturnValue(info, wrapper);
 }
 {% endmacro %}