Short-circuit get_frame_extents for override-redirect windows
Short-circuit get_frame_extents for override-redirect windows

There's no reason to do our expensive round-trips for an override-redirect
window; just use local information. See bug 581145. Patch by Owen Taylor.

alexlarsson/gtk,ahodesuka/gtk,msteinert/gtk,chergert/gtk,johne53/MB3Gtk-2,Distrotech/gtk2,alexlarsson/gtk,msteinert/gtk,msteinert/gtk,Unity-Technologies/gtk,alexlarsson/gtk,johne53/MB3Gtk-2,jigpu/gtk,alexlarsson/gtk,jessevdk/gtk,davidgumberg/gtk,davidt/gtk,chipx86/gtk,Sidnioulz/SandboxGtk,ebassi/gtk,bratsche/gtk-,grubersjoe/adwaita,jigpu/gtk,davidgumberg/gtk,chergert/gtk,Lyude/gtk-,davidt/gtk,jigpu/gtk,ebassi/gtk,jadahl/gtk,johne53/MB3Gtk-2,jadahl/gtk,Distrotech/gtk2,chipx86/gtk,ahodesuka/gtk,simokivimaki/gtk,Distrotech/gtk2,chergert/gtk,jigpu/gtk,bratsche/gtk-,Distrotech/gtk2,alexlarsson/gtk,ahodesuka/gtk,grubersjoe/adwaita,msteinert/gtk,Unity-Technologies/gtk,chergert/gtk,simokivimaki/gtk,simokivimaki/gtk,ebassi/gtk,ahodesuka/gtk,chergert/gtk,ebassi/gtk,Distrotech/gtk,davidt/gtk,Distrotech/gtk,chergert/gtk,ahodesuka/gtk,chipx86/gtk,jadahl/gtk,jigpu/gtk,simokivimaki/gtk,jadahl/gtk,Sidnioulz/SandboxGtk,ebassi/gtk,Lyude/gtk-,Adamovskiy/gtk,jigpu/gtk,Adamovskiy/gtk,ebassi/gtk,jadahl/gtk,chipx86/gtk,jadahl/gtk,jessevdk/gtk,alexlarsson/gtk,Unity-Technologies/gtk,Adamovskiy/gtk,chipx86/gtk,Adamovskiy/gtk,ahodesuka/gtk,Distrotech/gtk2,davidgumberg/gtk,bratsche/gtk-,jessevdk/gtk,bratsche/gtk-,jigpu/gtk,grubersjoe/adwaita,bratsche/gtk-,Sidnioulz/SandboxGtk,alexlarsson/gtk,msteinert/gtk,Lyude/gtk-,davidt/gtk,Lyude/gtk-,davidt/gtk,grubersjoe/adwaita,jessevdk/gtk,jigpu/gtk,Sidnioulz/SandboxGtk,chergert/gtk,Adamovskiy/gtk,jadahl/gtk,Lyude/gtk-,Sidnioulz/SandboxGtk,simokivimaki/gtk,ahodesuka/gtk,ahodesuka/gtk,davidgumberg/gtk,grubersjoe/adwaita,johne53/MB3Gtk-2,Distrotech/gtk,Adamovskiy/gtk,Lyude/gtk-,grubersjoe/adwaita,grubersjoe/adwaita,Lyude/gtk-,Lyude/gtk-,Unity-Technologies/gtk,bratsche/gtk-,alexlarsson/gtk,davidgumberg/gtk,Distrotech/gtk,chergert/gtk,Adamovskiy/gtk,jessevdk/gtk,Unity-Technologies/gtk,johne53/MB3Gtk-2,Adamovskiy/gtk,davidgumberg/gtk,Sidnioulz/SandboxGtk,grubersjoe/adwaita,jessevdk/gtk,jadahl/gtk,jessevdk/gtk,Distrotech/gtk2,davidgumberg/gtk,Distrotech/gtk,simokivimaki/gtk,msteinert/gtk,davidgumberg/gtk,davidt/gtk