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chromium/content/test/data/accessibility/accname/name-link-labelledby.html 

<!--
@BLINK-DENY:descri*
-->
<!doctype html>
<html>
<body>
<div id="ID1">foo</div>
<a id="test" href="test.html" aria-labelledby="ID1">bar</a>
</body>
</html>