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<!DOCTYPE html>
<html>
<head>
<style>
.composited {
transform: translatez(0);
}
.box {
position: absolute;
top: 360px;
left: 50px;
background-color: cyan;
width: 300px;
height: 100px;
}
#iframe1 {
position: absolute;
top: 30px;
left: 10px;
width: 150px;
height: 150px;
}
#iframe2 {
position: absolute;
top: 200px;
left: 10px;
width: 150px;
height: 150px;
}
#iframe3 {
position: absolute;
top: 380px;
left: 10px;
width: 150px;
height: 150px;
}
</style>
<script type="text/javascript">
if (window.internals) {
window.internals.settings.setPreferCompositingToLCDTextEnabled(true);
}
if (window.testRunner) {
testRunner.dumpAsText();
window.addEventListener("load", function() {
document.getElementById("layertree").innerText = window.internals.layerTreeAsText(document);
}, false);
}
</script>
</head>
<body style="height: 4000px;">
<div>In all iframes, the green fixed-position element should not be composited.
<pre id="layertree"></pre>
</div>
<div class="composited box"> Composited box underneath iframe. </div>
<iframe id="iframe1" src="resources/fixed-position-nonscrollable-body.html"></iframe>
<iframe id="iframe2" class="composited" src="resources/fixed-position-nonscrollable-body.html"></iframe>
<iframe id="iframe3" src="resources/fixed-position-nonscrollable-body.html"></iframe>
</body>
</html>
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