Drop [TreatNullAs=LegacyNullString] from HTMLBaseElement.href as this does not match the specification:
Firefox and Chrome both convert null to the string "null".
Created attachment 272726 [details]
Comment on attachment 272726 [details]
View in context: https://bugs.webkit.org/attachment.cgi?id=272726&action=review
> + No new tests, already covered by existing test.
You're adding a test case to fast/dom/HTMLBaseElement/href-attribute-resolves-with-respect-to-document.html
so you should list that instead of saying there's an existing coverage.
Committed r197494: <http://trac.webkit.org/changeset/197494>