composited-overflow-with-negative-offset-outline.html

<!DOCTYPE html>
<script src="../resources/text-based-repaint.js"></script>
<script>
function repaintTest() {
    scroller.style.outline = '1px solid green';
}
onload = runRepaintAndPixelTest;
</script>
<style>
#scroller {
    overflow: scroll;
    width: 200px;
    height: 200px;
    will-change: transform;
    outline: 1px solid red;
    outline-offset: -4px;
}

.spacer {
    height: 300px;
}
</style>
<!-- #scroller has a negative offset outline which should not be covered up by
    the scrollbar. When the color changes it should repaint. -->
<div id="scroller">
    <div class="spacer"></div>
</div>

chromium/third_party/blink/web_tests/paint/invalidation/overflow/composited-overflow-with-negative-offset-outline.html