The change to RootAccessible.cpp fixes an obvious bug introduced in bug 741707.
The visibility changes in gfx/thebes are because NS_DECL_ISUPPORTS has a
trailing "public:" that those classes were relying on to have public
constructors.
MozReview-Commit-ID: IeB8KIJCGhU
Accessibility module uses nsIEditor (and nsIPlaintextEditor). However, now, it can use TextEditor and HTMLEditor. So, it should use them.
Note that this patch makes HTMLTextFieldAccessible::GetEditor() use nsITextControlElement::GetTextEditor() instead of nsIDOMNSEditableElement::GetEditor() but this won't change actual behavior since both implementation of HTMLInputElement and HTMLTextareaElement are just call shared internal methods.
MozReview-Commit-ID: HxHMGVSvWFv