tree 2fa80a98aef1cfc936ec071324003bd3ec6a0880
parent d0cc5741e0d92cc71b2610eee0dfcdac57ee032e
author violet <violet.bugreport@gmail.com> 1560468993 +0000
committer moz-wptsync-bot <wptsync@mozilla.com> 1560484335 -0400

Use the referenced element to check whether to ignore a mutation event

Using `nsContentUtils::IsInSameAnonymousTree(this, aElement)` to check will ignore all mutation notification for anonymous <use> which will happen when <use> is nested. This is the cause that second-level <use> isn't properly synced with element mutation.

We should use the referenced element instead of `this` in the check condition.

Differential Revision: https://phabricator.services.mozilla.com/D34284

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1032124
gecko-commit: 96b0fd9c79cd30dfe59597a8a77564862eb30091
gecko-integration-branch: autoland
gecko-reviewers: emilio, longsonr