Implement Custom Elements

sky/engine/bindings/scripts/templates/attributes_cpp.template

 {##############################################################################}
 {% macro attribute_getter(cpp_class, attribute) %}
 static void {{static_attribute_name(attribute, 'Getter')}}(Dart_NativeArguments args) {
 {% if attribute.is_getter_raises_exception or attribute.is_call_with_execution_context %}
     Dart_Handle exception = nullptr;
 {% endif %}
   {
 {% if attribute.is_call_with_execution_context %}
     ExecutionContext* context = DOMDartState::CurrentDocument();
     if (!context) {
@@ skipping 65 matching lines @@
 {
 {% if attribute.idl_type == "EventHandler" or not attribute.cpp_setter %}
 {# TODO(terry): Need to fix properly. #}
     // FIXME: proper implementation.
     DART_UNIMPLEMENTED();
 {% else %}
     Dart_Handle exception = nullptr;
     {
         {{cpp_class}}* receiver = GetReceiver<{{cpp_class}}>(args);
 {% if attribute.is_custom_element_callbacks %}
-        CustomElementProcessingStack::CallbackDeliveryScope deliveryScope;
+        NewCustomElementCallbackScope deliveryScope;
 {% endif %}
 {% set attribute_name = attribute.name if not attribute.put_forwards else 'value' %}
 
         {{attribute.local_cpp_type}} {{attribute.setter_lvalue}} = {{attribute.dart_value_to_local_cpp_value}};
         if (exception)
             goto fail;
 {% if attribute.is_call_with_execution_context or
       attribute.is_setter_call_with_execution_context %}
 
         ExecutionContext* context = DOMDartState::CurrentDocument();
@@ skipping 98 matching lines @@
 {% macro generate_attribute_symbolizer_body(dart_class, class_name, attribute) %}
 if (native_function == {{dart_class}}Internal::{{static_attribute_name(attribute, 'Getter')}}) {
     return reinterpret_cast<const uint8_t*>("{{attribute.native_entry_getter.resolver_string}}");
 }
   {% if not attribute.is_read_only %}
 if (native_function == {{dart_class}}Internal::{{static_attribute_name(attribute, 'Setter')}}) {
     return reinterpret_cast<const uint8_t*>("{{attribute.native_entry_setter.resolver_string}}");
 }
   {% endif %}
 {% endmacro %}