<!DOCTYPE html>
<style>
.test {
    -webkit-writing-mode:vertical-rl;
    font-family:'Hiragino Kaku Gothic ProN';
}
</style>
<p>Make sure assertion does not fail for glpyh ID 0 of a font that has a "VORG" table in vertical flow.
<div class="test">&#xFFFF;</div>
<script>
if (window.testRunner)
    testRunner.dumpAsText();
document.body.offsetTop;
</script>