third_party/WebKit/LayoutTests/fast/canvas/draw-focus-if-needed-invisible-crash.html

   1 <!DOCTYPE HTML>
   2 <p>This test passes by not crashing.</p>
   3 <canvas id="canvas">
   4     <button id="button"></button>
   5 </canvas>
   6 <script>
   7 if (window.testRunner)
   8     testRunner.dumpAsText();
   9
  10 var button = document.getElementById("button");
  11 button.focus();
  12 var canvas = document.getElementById("canvas")
  13 var ctx = canvas.getContext("2d");
  14 ctx.rect(0, 0, 10, 10);
  15 canvas.style.display = "none";
  16 ctx.drawFocusIfNeeded(button);
  17 </script>