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>
<script src="apz_test_native_event_utils.js"></script>
<script src="apz_test_utils.js"></script>
<style>
body, html {
margin: 0;
}
</style>
<div id="scrolltarget" style="margin-top: 5000px; height: 5000px">#scrolltarget</div>
