mojo/public/bindings/generators/cpp_templates/struct_serialization

// static
void ObjectTraits<$CLASS>::EncodePointersAndHandles(
    $CLASS* $NAME, std::vector<mojo::Handle>* handles) {
$ENCODES
$ENCODE_HANDLES
}

// static
bool ObjectTraits<$CLASS>::DecodePointersAndHandles(
    $CLASS* $NAME, const mojo::Message& message) {
$DECODES
$DECODE_HANDLES
  return true;
}