chromium/third_party/blink/web_tests/paint/invalidation/background/multiple-backgrounds-style-change-expected.html

<!DOCTYPE html>
<style>
    .box {
        height: 200px;
        width: 200px;
        border: 1px solid black;
        background-repeat: no-repeat;
        background-size: 100px 100px;
        background-position: 0 0, 100px 100px;
        background-image: url('../../../images/resources/green-256x256.jpg'), url('../../../images/resources/dice.png');
        transform: translate3d(50px, 50px, 0);
        will-change: transform;
    }
</style>
<div id="test" class="box">
</div>