LayoutTests/fast/css/variables/invalid-shorthand.html

<script>
internals.settings.setCSSVariablesEnabled(true);
</script>
<style>
div {
    -webkit-var-a: 10px solid green;
    border: 10px -webkit-var(a) blue;
}
</style>
<div>
This text should not be surrounded by a border.
</div>