Matthias Clasen authored Aug 12, 2016 and Emmanuele Bassi committed Oct 17, 2016

Change get_render_node to return nodes that are sized to the clip
area and expect to be placed at the clip position; change
gtk_container_propagate_render_node to place child render nodes
accordingly, and change gtk_css_gadget_get_render_node to return
nodes that are sized accordingly as well.