A number of fast/dom tests fail.
These tests fail with 8u102, 8u112 and 9.

Affected tests:
fast/dom/Document/xml-document-focus.xml
fast/dom/HTMLImageElement/sizes/image-sizes-2x.html
fast/dom/HTMLImageElement/sizes/image-sizes-js-change.html
fast/dom/HTMLImageElement/sizes/image-sizes-js-innerhtml.html
fast/dom/HTMLTemplateElement/cloneNode-nested-templates.html
fast/dom/HTMLTemplateElement/importNode-nested-templates.html
fast/dom/NavigatorContentUtils/is-protocol-handler-registered.html
fast/dom/Window/dom-access-from-closure-window-with-gc.html
fast/dom/Window/window-property-invalid-characters-ignored.html
fast/dom/Window/window-resize-contents.html
fast/dom/html-link-element-activation-behavior-url-is-null.html
fast/dom/insertBefore-refChild-crash.html
fast/dom/microtask-detach.html
fast/dom/microtask-inorder.html
fast/dom/microtask-reverse.html
fast/dom/move-detached-child-in-range.html

Note that some of these tests were not present in pre-Webkit merge DRT workspace, and many of these pass in old DRT workspace with 8u102, or both 8u102 and 9.