(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
All classes which have mCanvasTM declared as a member object are inherited from
nsSVGDisplayContainerFrame. We should just declare a protected member in the
base class and then remove mCanvasTM and duplicated implementaion of
GetCanvasTM & NotifySVGChanged in those derived classes.
MozReview-Commit-ID: 8f8EgFNEXHJ
