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<!DOCTYPE html>
<!-- crbug.com/336676 - layer creation should not accidentally skip requesting
the compositor for a frame to be produced. When there were no other
repaints or layout/style changes, the simple act of adding a layer was not
triggering compositing updates by itself. To recreate this scenario, an
out-of-flow canvas element is added to an empty composited layer. The
actual container layer does not get added to the tree until it realizes
that it receives the canvas content. -->
<html>
<head>
<script src="../../fast/repaint/resources/text-based-repaint.js"></script>
<style>
.composited {
transform: translatez(0);
}
.box {
position: absolute;
z-index: 1;
width: 300px;
height: 300px;
top: 0px;
left: 0px;
}
canvas {
position: absolute;
z-index: 1;
top: 0px;
left: 0px;
}
</style>
<script>
function repaintTest() {
var canvasElement = document.createElement("canvas");
canvasElement.width = 200;
canvasElement.height = 200;
var context = canvasElement.getContext("2d");
context.fillStyle = "green";
context.fillRect(80, 80, 50, 50);
document.getElementById("container").appendChild(canvasElement);
}
</script>
</head>
<body onload="runRepaintAndPixelTest()">
<div id="container" class="composited box"></div>
</body>
</html>
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