mozilla-central: gfx/layers/apz/test/mochitest/helper_test_autoscrolling_in_oop_frame.html@dd0fdd1daa69783be36acd5c50544f3694eaa8f9

Mercurial > mozilla-central / file revision / gfx/layers/apz/test/mochitest/helper_test_autoscrolling_in_oop_frame.html@dd0fdd1daa69783be36acd5c50544f3694eaa8f9

author	James Teh <jteh@mozilla.com>
	Wed, 01 Feb 2023 05:02:01 +0000
changeset 651150	dd0fdd1daa69783be36acd5c50544f3694eaa8f9
parent 587298	4593c3d66951dfc5311236f655cf8ffd5db0be1c
permissions	-rw-r--r--

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>
<html>
<head>
</head>
<body>
  <iframe src="http://example.net" style="height: 90vh; width: 90vw;"></iframe>
  <div style="height: 200px"></div>
</body>
</html>