<!DOCTYPE html>
<!--The test makes four canvases. The first never receives a getContext. The
  second is rendered into immediately. The third and fourth are rendered
  into with from nested setTimeout callbacks. When the canvases are accelerated
  we expect that the latter three are all placed in render layers while
  the first is not.-->
<html>
<body style="line-height: 0;">
  <canvas id="A" width=100 height=100></canvas><canvas id="B" width=100 height=100></canvas><canvas id="C" width=100 height=100></canvas><canvas id="D" width=100 height=100></canvas>
  <script type="text/javascript" charset="utf-8">
    if (window.testRunner)
        testRunner.waitUntilDone();

    function doTest() {
        var contextB = document.getElementById("B").getContext("2d");
        contextB.fillStyle = "#00C000";
        contextB.fillRect(0, 0, 100, 100);

        window.setTimeout(function() {
            var contextD = document.getElementById("D").getContext("2d");
            contextD.fillStyle = "#00C000";
            contextD.fillRect(0, 0, 100, 100);

            window.setTimeout(function() {
                var contextC = document.getElementById("C").getContext("2d");
                contextC.fillStyle = "#00C000";
                contextC.fillRect(0, 0, 100, 100);
                if (window.testRunner)
                    testRunner.notifyDone();
            }, 0);

        }, 0);
    }
    window.addEventListener('load', doTest, false);
  </script>
</body>
</html>