LayoutTests/fast/repaint/inline-box-ink-overflow-shrink.html

<style>
div {
 font-family: Ahem;
  height: 200px;
}
span {
  text-decoration: underline;
  text-underline-offset: 100px;
}
</style>
<div><span id=foobar>PASS if there's only one underline visible.</span></div>
<script src="resources/text-based-repaint.js" type="text/javascript"></script>
<script>
  repaintTest = function() {
    foobar.style.textUnderlineOffset = "30px";
  };
runRepaintTest();
</script>