Bug 1813980: Check IsDoc before Parent in RemoteAccessibleBase::ApplyCrossDocOffset. r=morgan
We call this function on every ancestor when calculating bounds.
RemoteParent() currently requires a hash lookup, so it's more efficient to early return for !IsDoc() first.
This is a micro-optimisation, but it might have some impact given that we call this on every ancestor, especially when hit testing, where we call Bounds() a lot.
As a bit of drive-by cleanup, use RemoteParent() rather than calling Parent() and IsRemote/AsRemote().
Differential Revision:
https://phabricator.services.mozilla.com/D168346
<!DOCTYPE HTML>
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<html class="reftest-wait"><head>
<meta charset="utf-8">
<title>CSS Grid Test: test 009 dynamic remove/insert second item</title>
<link rel="author" title="Mats Palmgren" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1144096">
<link rel="help" href="https://drafts.csswg.org/css-grid/#pagination">
<link rel="match" href="grid-fragmentation-009-ref.html">
<script src="support/dyn.js"></script>
<script>
function runTest(text) {
document.body.innerHTML = text;
dyn3('.grid');
document.documentElement.removeAttribute("class");
}
</script>
</head>
<body onload='dynamicTest("grid-fragmentation-009.html", runTest)'></body>
</html>
