chromium/third_party/blink/web_tests/paint/invalidation/button-inner-no-repaint.html

<!DOCTYPE html>
<script src="resources/text-based-repaint.js"></script>
<script>
function repaintTest() {
  document.getElementsByTagName('button')[0].style.maxWidth = '1000px';
}
onload = runRepaintTest;
</script>
<style>
button {
  position: absolute;
  width: 300px;
  height: 100px;
}
</style>
<button><div>Should not repaint on style change that doesn't change visual.<br></div></button>