Comment 1 for bug 1203557

[What actually happens]

The window x-size is now the same like your screen's x resolution minus the size of the window borders.

     is->resizeGeometry.x = window->x ();
     is->resizeGeometry.y = window->y ();
     is->resizeGeometry.width = window->width ();
     is->resizeGeometry.height = window->height ();

Which happens to be the correct behavior.