
The last patch in the series, this one adapts StShadowHelper to received a CoglFramebuffer. This is where we first touch JavaScript with Cogl types, and as such, it depends on the latest Mutter. Earlier versions of Mutter didn't have its Mutter-Clutter GIR to generate types for various Cogl types. https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/283