Implement cross-origin attributes using access check interceptors.

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

 {% from 'utilities.cpp.tmpl' import declare_enum_validation_variable, v8_value_to_local_cpp_value %}
 
 {##############################################################################}
 {% macro generate_method(method, world_suffix) %}
 static void {{method.name}}{{method.overload_index}}Method{{world_suffix}}(const v8::FunctionCallbackInfo<v8::Value>& info) {
   {% filter format_remove_duplicates([
       'ExceptionState exceptionState',
       'ScriptState* scriptState = ']) %}
   {% set define_exception_state -%}
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::ExecutionContext, "{{interface_name}}", "{{method.name}}");
@@ skipping 492 matching lines @@
   {% elif method.is_post_message %}
   postMessageImpl("{{interface_name}}", {{v8_class}}::toImpl(info.Holder()), info);
   {% else %}
   {{cpp_class_or_partial}}V8Internal::{{method.name}}Method{{world_suffix}}(info);
   {% endif %}
 }
 {% endmacro %}
 
 
 {##############################################################################}
-{% macro origin_safe_method_getter(method, world_suffix) %}
-static void {{method.name}}OriginSafeMethodGetter{{world_suffix}}(const v8::PropertyCallbackInfo<v8::Value>& info) {
+{% macro cross_origin_method_getter(method, world_suffix) %}
+static void {{method.name}}CrossOriginMethodGetter{{world_suffix}}(const v8::PropertyCallbackInfo<v8::Value>& info) {
   static int domTemplateKey; // This address is used for a key to look up the dom template.
   V8PerIsolateData* data = V8PerIsolateData::from(info.GetIsolate());
   const DOMWrapperWorld& world = DOMWrapperWorld::world(info.GetIsolate()->GetCurrentContext());
   v8::Local<v8::FunctionTemplate> interfaceTemplate = data->findInterfaceTemplate(world, &{{v8_class}}::wrapperTypeInfo);
   v8::Local<v8::Signature> signature = v8::Signature::New(info.GetIsolate(), interfaceTemplate);
 
   v8::Local<v8::FunctionTemplate> methodTemplate = data->findOrCreateOperationTemplate(world, &domTemplateKey, {{cpp_class}}V8Internal::{{method.name}}MethodCallback{{world_suffix}}, v8Undefined(), signature, {{method.length}});
-  // Return the function by default, unless the user script has overwritten it.
   v8SetReturnValue(info, methodTemplate->GetFunction(info.GetIsolate()->GetCurrentContext()).ToLocalChecked());
-
-  {{cpp_class}}* impl = {{v8_class}}::toImpl(info.Holder());
-  if (!BindingSecurity::shouldAllowAccessTo(currentDOMWindow(info.GetIsolate()), impl, BindingSecurity::ErrorReportOption::DoNotReport)) {
-    return;
-  }
-
-  v8::Local<v8::Value> hiddenValue = V8HiddenValue::getHiddenValue(ScriptState::current(info.GetIsolate()), v8::Local<v8::Object>::Cast(info.Holder()), v8AtomicString(info.GetIsolate(), "{{method.name}}"));
-  if (!hiddenValue.IsEmpty()) {
-    v8SetReturnValue(info, hiddenValue);
-  }
-}
-
-void {{method.name}}OriginSafeMethodGetterCallback{{world_suffix}}(v8::Local<v8::Name>, const v8::PropertyCallbackInfo<v8::Value>& info) {
-  {{cpp_class}}V8Internal::{{method.name}}OriginSafeMethodGetter{{world_suffix}}(info);
 }
 {% endmacro %}
 
 
 {##############################################################################}
 {% macro method_implemented_in_private_script(method) %}
 bool {{v8_class}}::PrivateScript::{{method.name}}Method({{method.argument_declarations_for_private_script | join(', ')}}) {
   if (!frame)
     return false;
   v8::HandleScope handleScope(toIsolate(frame));
@@ skipping 114 matching lines @@
                           if method.overloads else
                           method.runtime_enabled_function) %}
 const V8DOMConfiguration::MethodConfiguration {{method.name}}MethodConfiguration = {{method_configuration(method)}};
 V8DOMConfiguration::installMethod(isolate, world, v8::Local<v8::Object>(), prototypeObject, interfaceObject, signature, {{method.name}}MethodConfiguration);
 {% endfilter %}{# runtime_enabled() #}
 {% endfilter %}{# exposed() #}
 {% endfilter %}{# secure_context() #}
 {% endfor %}
 {% endif %}
 {%- endmacro %}