Comment 8 for bug 945608

As I wrote in a neighbor https://bugs.launchpad.net/ayatana-design/+bug/723167/comments/24, we either need to fix cairo or draw background for all labels, we can't use empty/transparent CAIRO_FORMAT_ARGB32 because it makes cairo draw weird antialiased artifacts.

It does not look like we can get a pixmap of the destination, so this patch just queries for HUD/Dash being open and draws background if not. This is really bad as it makes indicatorentry aware of the dash and hud (and it don't really need that knowledge) but it is as far as I could get.