Use the primitive_units from the FilterContext; no need to get them from a parent node
Use the primitive_units from the FilterContext; no need to get them from a parent node

The primitiveUnits from the <filter> node have already been copied to
the FilterContext when it was built.  We don't need
Primitive.get_bounds() to go looking up the tree of elements.

GNOME/librsvg,GNOME/librsvg,GNOME/librsvg,GNOME/librsvg