chromium/third_party/blink/web_tests/css3/masking/clip-path-inset-large-radii.html

<!DOCTYPE html>
<style>
    div {
        width: 200px;
        height: 150px;
        background-color: blue;
        -webkit-clip-path: inset(0px round 60%);
    }
</style>
<body>
    <p><a href="http://crbug.com/449638">Issue 449638</a> - [CSS Masking][CSS Shapes] Large corner radii use with inset() clip-path are not properly constrained</p>
    <p>The radii for this inset should be constrained in the same way that border-radii are constrained. If this happens correctly, you should see a blue ellipse.</p>
    <p>NOTE: we should have a reftest but currently comparing this clip-path with a border-radius expectation will show small pixel differences around the curve.</p>
    <div></div>
</body>