Bug 1028588 - Fix dangerous public destructors in libpref/ - r=bsmedberg
Bug 1028588 - Fix dangerous public destructors in rdf/ - r=bsmedberg
Bug 1028588 - Fix dangerous public destructors in embedding/ - r=bsmedberg
Bug 1028588 - Fix dangerous public destructors in xpcom/ - r=bsmedberg,khuey,nfroyd