This is a regression caused by http://trac.webkit.org/changeset/166514
In making checkboxes and radio buttons share code, I accidentally used checkbox metrics in two spots for radio buttons as well. Miraculously, this does not seem to have effected the rendering is any obvious way, but we should still fix it.
Created attachment 229082 [details]
Comment on attachment 229082 [details]
Because I can't not have a nit, I'd move the "const int* controlMargins" line down below the zoomedSize.setWidth and zoomedSize.setHeight lines. But r=me. :)