LayoutTests/fast/css/webkit-named-image/apple-pay-logo-black/background-size.html

<style>
div {
    width: 100px;
    height: 100px;
    background-image: -webkit-named-image(apple-pay-logo-black);
    background-size: 50px 50px;
    background-repeat: no-repeat;
}
</style>
<div></div>