SubtractRegion 40 ui/gfx/path_aura.cc NativeRegion Path::SubtractRegion(NativeRegion r1, NativeRegion r2) { SubtractRegion 49 ui/gfx/path_gtk.cc NativeRegion Path::SubtractRegion(NativeRegion r1, NativeRegion r2) { SubtractRegion 62 ui/gfx/path_win.cc NativeRegion Path::SubtractRegion(NativeRegion r1, NativeRegion r2) {