Comment 2 for bug 748858

The only program I can think of that does this on *nix is Firefox. Lots of programs do it on Windows, including (IIRC) Photoshop and Illustrator.

It should apply to scroll bars. Firefox lets you use the scroll bars from the screen edge (although Fitts' law says the easiest target to hit is wherever the mouse currently is, so usually the scroll wheel is all you need).

I don't know whether it's a good idea for all apps to ignore such borders, but apps that run in full-screen with toolbars on the side should.