This prevents us from generating the "originating from" string in some layout tests. It would also be very useful for embedders. It should not be very hard now that we have a DOM API. This can be observed by looking at the output of fast/forms/mailto/formenctype-attribute-button-html.html and fast/forms/mailto/formenctype-attribute-input-html.html.
Committed r72015: <http://trac.webkit.org/changeset/72015>
This isn't going to happen in WebKit2.