window: Refactor _gtk_window_check_handle_wm_event()
window: Refactor _gtk_window_check_handle_wm_event()

Separate the event widget check from event handling

grubersjoe/adwaita,chergert/gtk,alexlarsson/gtk,Adamovskiy/gtk,grubersjoe/adwaita,jigpu/gtk,ahodesuka/gtk,jessevdk/gtk,Lyude/gtk-,grubersjoe/adwaita,jadahl/gtk,davidgumberg/gtk,davidgumberg/gtk,alexlarsson/gtk,grubersjoe/adwaita,grubersjoe/adwaita,jigpu/gtk,Adamovskiy/gtk,jadahl/gtk,davidgumberg/gtk,grubersjoe/adwaita,davidgumberg/gtk,jessevdk/gtk,jadahl/gtk,ahodesuka/gtk,davidgumberg/gtk,ahodesuka/gtk,jigpu/gtk,chergert/gtk,Adamovskiy/gtk,alexlarsson/gtk,alexlarsson/gtk,Lyude/gtk-,jadahl/gtk,jigpu/gtk,jessevdk/gtk,alexlarsson/gtk,chergert/gtk,ahodesuka/gtk,davidgumberg/gtk,ahodesuka/gtk,Lyude/gtk-,Lyude/gtk-,ahodesuka/gtk,jadahl/gtk,grubersjoe/adwaita,davidgumberg/gtk,ahodesuka/gtk,Lyude/gtk-,jigpu/gtk,jadahl/gtk,jadahl/gtk,jigpu/gtk,chergert/gtk,Adamovskiy/gtk,jigpu/gtk,Adamovskiy/gtk,Lyude/gtk-,chergert/gtk,jessevdk/gtk,alexlarsson/gtk,Lyude/gtk-,chergert/gtk,chergert/gtk,Adamovskiy/gtk,jigpu/gtk,davidgumberg/gtk,jessevdk/gtk,jadahl/gtk,Adamovskiy/gtk,Adamovskiy/gtk,Lyude/gtk-,grubersjoe/adwaita,ahodesuka/gtk,chergert/gtk,jessevdk/gtk,alexlarsson/gtk,alexlarsson/gtk,jessevdk/gtk