third_party/blink/web_tests/images/imagemap-overflowing-circle-focus-ring.html - chromium/src - Git at Google

 <html>
 <body>
 <p>Assuming the port-specific theme draws focus rings, this test can be used to ensure that a focus ring is drawn for an &lt;area shape=&quot;circle&quot;&gt; that overflows the img element. This test PASSED if a half-circule-shaped focus ring is drawn for the &lt;area&gt; in the imagemap (below).</p>
 <map name="imagemap">
     <area id="area" shape="circle" coords="128,64,61" href="#dummy" />
 </map>
 <img width="128" height="128" usemap="#imagemap" />
 <script>document.getElementById("area").focus()</script>
 </body>
 </html>
	<html>
	<body>
	<p>Assuming the port-specific theme draws focus rings, this test can be used to ensure that a focus ring is drawn for an <area shape="circle"> that overflows the img element. This test PASSED if a half-circule-shaped focus ring is drawn for the <area> in the imagemap (below).</p>
	<map name="imagemap">
	<area id="area" shape="circle" coords="128,64,61" href="#dummy" />
	</map>
	<img width="128" height="128" usemap="#imagemap" />
	<script>document.getElementById("area").focus()</script>
	</body>
	</html>