tests: Update the devices test
tests: Update the devices test

Use the DeviceManager API instead of the X11 specific API.

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