actor: when culling/clipped redraws disable ignore paint box
actor: when culling/clipped redraws disable ignore paint box

To make comparing the performance with culling/clipped redraws
enabled/disabled fairer we now avoid querying the paint box when they
are disabled, so that results should reflect how the cost of
transforming paint volumes into screen space etc gets offset against the
benefit of culling.

spatulasnout/clutter,Distrotech/clutter,djdeath/clutter-multithreaded,djdeath/clutter-multithreaded,dlespiau/clutter,nobled/clutter,Distrotech/clutter,djdeath/clutter-android,GNOME/clutter,djdeath/clutter,Distrotech/clutter,GNOME/clutter,Distrotech/clutter,jigpu/clutter,heysion/clutter-clone,nobled/clutter,GNOME/clutter,heysion/clutter-clone,Distrotech/clutter,djdeath/clutter-android,kerrickstaley/clutter-vala,djdeath/clutter-android,ebassi/clutter,jigpu/clutter,djdeath/clutter,heysion/clutter-clone,djdeath/clutter,nobled/clutter,spatulasnout/clutter,kerrickstaley/clutter-vala,spatulasnout/clutter,djdeath/clutter,collects/clutter,GNOME/clutter,heysion/clutter-clone,jigpu/clutter,dlespiau/clutter,dlespiau/clutter,djdeath/clutter-android,spatulasnout/clutter,kerrickstaley/clutter-vala,GNOME/clutter,jigpu/clutter,spatulasnout/clutter,ebassi/clutter,heysion/clutter-clone,djdeath/clutter-multithreaded,Distrotech/clutter,jigpu/clutter,djdeath/clutter-multithreaded,kerrickstaley/clutter-vala,jigpu/clutter,collects/clutter,collects/clutter,ebassi/clutter,ebassi/clutter,djdeath/clutter-android,collects/clutter,djdeath/clutter,collects/clutter,ebassi/clutter,djdeath/clutter