pathbar: Implement clipping
pathbar: Implement clipping

.. so the path bar's buttons can have shadows.

alexlarsson/gtk,ahodesuka/gtk,chergert/gtk,Adamovskiy/gtk,alexlarsson/gtk,jadahl/gtk,jigpu/gtk,jessevdk/gtk,ahodesuka/gtk,grubersjoe/adwaita,Lyude/gtk-,Lyude/gtk-,jessevdk/gtk,alexlarsson/gtk,Adamovskiy/gtk,chergert/gtk,Lyude/gtk-,jessevdk/gtk,grubersjoe/adwaita,davidgumberg/gtk,alexlarsson/gtk,chergert/gtk,jigpu/gtk,davidgumberg/gtk,Lyude/gtk-,jessevdk/gtk,jessevdk/gtk,jessevdk/gtk,chergert/gtk,grubersjoe/adwaita,chergert/gtk,jadahl/gtk,Lyude/gtk-,ahodesuka/gtk,jessevdk/gtk,Adamovskiy/gtk,davidgumberg/gtk,grubersjoe/adwaita,alexlarsson/gtk,jadahl/gtk,Lyude/gtk-,ahodesuka/gtk,ahodesuka/gtk,davidgumberg/gtk,Lyude/gtk-,Adamovskiy/gtk,alexlarsson/gtk,davidgumberg/gtk,ahodesuka/gtk,jadahl/gtk,jadahl/gtk,Adamovskiy/gtk,jigpu/gtk,ahodesuka/gtk,grubersjoe/adwaita,Adamovskiy/gtk,chergert/gtk,jadahl/gtk,jigpu/gtk,chergert/gtk,jigpu/gtk,chergert/gtk,davidgumberg/gtk,davidgumberg/gtk,alexlarsson/gtk,Adamovskiy/gtk,jigpu/gtk,Adamovskiy/gtk,ahodesuka/gtk,grubersjoe/adwaita,jigpu/gtk,jigpu/gtk,alexlarsson/gtk,Lyude/gtk-,davidgumberg/gtk,jadahl/gtk,jadahl/gtk,grubersjoe/adwaita,grubersjoe/adwaita