11 background-color: silver;
15 <script type="text/javascript">
16 if (window.testRunner && window.internals) {
17 testRunner.dumpAsText();
18 internals.settings.setPreferCompositingToLCDTextEnabled(true);
20 addEventListener("load", function() {
21 var fixed = document.createElement("div");
22 document.body.appendChild(fixed);
23 document.body.offsetHeight;
24 fixed.className = "fixed";
25 var mainThreadScrollingReasons = internals.mainThreadScrollingReasons(document);
26 document.getElementById("result").innerText = !mainThreadScrollingReasons ? "PASS" : "FAIL: " + mainThreadScrollingReasons;
32 <!-- Fixed position elements may skip compositing without a scrollable
33 ancestor. To make sure this test covers the intended scenario, we force the
34 body element to be tall, so that the FrameView is scrolling. -->
35 <body style="height: 4000px;">
36 <pre id="result"></pre>