protected Element convertToElements(SafeHtml html) {
        return convertToElements(this, getTmpElem(), html);
    }
Convert the specified HTML into DOM elements and return the parent of the
DOM elements.

@param html the HTML to convert
@return the parent element
stroom-core-client-widget/src/main/java/com/google/gwt/user/cellview/client/AbstractHasData.java