cairo: Fix cairo_*_extents bindings
cairo: Fix cairo_*_extents bindings

tjol/vala-tjol,jessevdk/vala,themiwi/vala,severinh/vala,Jc2k/vala,Jc2k/vala,frida/vala,flobrosch/vala-fixes,phako/vala,kamanashisroy/aroop,frida/vala,kamanashisroy/aroop,Distrotech/vala,GNOME/vala,phako/vala,spidermonkdust/vala,GNOME/vala,Distrotech/vala,tjol/vala-tjol,flobrosch/vala-fixes,tjol/vala-tjol,severinh/vala,jessevdk/vala,GNOME/vala,xdave/pvala,frida/vala,themiwi/vala,spidermonkdust/vala,GNOME/vala,rvu95/vala,lovebug356/vala,rvu95/vala,playya/vala,lovebug356/vala,frida/vala,themiwi/vala,rvu95/vala,playya/vala,severinh/vala,playya/vala,spidermonkdust/vala,flobrosch/vala-fixes,kamanashisroy/aroop,frida/vala,jessevdk/vala,Distrotech/vala