This in turn makes the default:
QPainter::fillRect(QRect(...), Qt::transparent);
a no-op. The commit makes the fillrect actually do what, I bet
it was supposed to be doing. (but i ain't much of a gambler since
i'm not sure what it's supposed to be doin in the first place. at
least now it's doing something "weird" faster)
svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=680260