We only found 4 places of public API:

• QDomElement EntryInternal::entryXml()
• Provider::setProviderXml(QDomElement)
• KNSCore::addElement(QDomDocument, QDomElement, QString, QString)
• XmlLoader::signalLoaded(QDomDocument)

Fortunately all of this is unused externally, so we can deprecate those, and even make them no-ops and port all the internals away from QDom API.