Comment 3 for bug 727901

I can't do that one without breaking the compability between nux and unity, which is forbidden at this state of the cycle as well as being dangerous. Setting in the backlog basket.

Technical reason:
void
Launcher::ProcessDndMove (int x, int y, std::list<char *> mimes)
this function is signaled by Nux, and the mimetypes of the dragged element are only available there. We would need to set the mimetype before, which is an ABI and API break in Nux.