The following layout test crash on chromium linux debug. fast/lists/list-marker-remove-crash.html This test is introduced by following change, and continues to crash after landing. https://bugs.webkit.org/show_bug.cgi?id=90476 Douglas, I reverted this change for now as a WebKit gardener. Could you look into this? http://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=fast%2Flists%2Flist-marker-remove-crash.html