Bug 764089 - PangoWin32FontMap Memory Leak
Bug 764089 - PangoWin32FontMap Memory Leak

Add finalizers to PangoWin32FontMap

Patch from Geoffrey Yerem.

Part of https://bugzilla.gnome.org/show_bug.cgi?id=764089

Distrotech/pango,Distrotech/pango,Distrotech/pango