<!DOCTYPE HTML>
<p>This test passes by not crashing.</p>
<canvas id="canvas">
    <button id="button"></button>
</canvas>
<script>
if (window.testRunner)
    testRunner.dumpAsText();

var button = document.getElementById("button");
button.focus();
var canvas = document.getElementById("canvas")
var ctx = canvas.getContext("2d");
ctx.rect(0, 0, 10, 10);
canvas.style.display = "none";
ctx.drawFocusIfNeeded(button);
</script>