By removing the "Atom" suffix, which is redundant. MozReview-Commit-ID: 4MCX9Icfjrw
(Path is actually r=froydnj.) Bug 1400459 devirtualized nsIAtom so that it is no longer a subclass of nsISupports. This means that nsAtom is now a better name for it than nsIAtom. MozReview-Commit-ID: 91U22X2NydP
MozReview-Commit-ID: 77Hqo24F2nB