Comment 95 for bug 491521

What I've noticed is that this patch to gtk also causes more expose events to occur, including one I've specifically spotted where resizing a window to the same size it already was causes an event. I had a piece of code that used to run perfectly but since it had a resize in the expose event handler, it wasn't actually able to draw at all and just used 100% cpu. I think this also applies to animated progressbars in murrine, they give me 100% cpu as well, but they do draw.