I'm seeing leak for icons.  This case is for a Save-as from gnumeric.

Naively it looks like both icon_info_ensure_scale_and_pixbuf and its
caller, gtk_icon_info_load_icon. ref the pixbuf.


         MLK: 1296 bytes leaked at 0x1728ab8
         This memory was allocated from:
               malloc         [rtlib.o pc=0x72e00]
               g_try_malloc   [gmem.c:194 pc=0xfa3c5cac]
               gdk_pixbuf_new [gdk-pixbuf.c:281 pc=0xfb304d78]
               gdk_pixbuf_scale_simple [gdk-pixbuf-scale.c:252 pc=0xfb30e8c8]
               icon_info_ensure_scale_and_pixbuf [gtkicontheme.c:2531 pc=0xfad90f38]
               gtk_icon_info_load_icon [gtkicontheme.c:2571 pc=0xfad91008]
               gtk_icon_theme_load_icon [gtkicontheme.c:1312 pc=0xfad8e100]
               get_cached_icon [gtkfilesystemgnomevfs.c:948 pc=0xf7ab4bcc]
               gtk_file_system_gnome_vfs_render_icon
[gtkfilesystemgnomevfs.c:1405 pc=0xf7ab58fc]
               gtk_file_system_render_icon [gtkfilesystem.c:697 pc=0xfad62640]
               shortcuts_reload_icons [gtkfilechooserdefault.c:984 pc=0xfad49024]
               change_icon_theme [gtkfilechooserdefault.c:3903 pc=0xfad4fe50]
               check_icon_theme [gtkfilechooserdefault.c:3939 pc=0xfad4fffc]
               gtk_file_chooser_default_screen_changed
[gtkfilechooserdefault.c:3972 pc=0xfad501d4]
               g_cclosure_marshal_VOID__OBJECT [gmarshal.c:636 pc=0xfa868270]
               g_type_class_meta_marshal [gclosure.c:514 pc=0xfa83e10c]
               g_closure_invoke [gclosure.c:437 pc=0xfa83dd4c]
               signal_emit_unlocked_R [gsignal.c:2480 pc=0xfa865f80]
               g_signal_emit_valist [gsignal.c:2201 pc=0xfa862b74]
               g_signal_emit  [gsignal.c:2245 pc=0xfa862fd4]
               do_screen_change [gtkwidget.c:4789 pc=0xfaf95f94]
               gtk_widget_propagate_hierarchy_changed_recurse [gtkwidget.c:4813
pc=0xfaf96150]
               gtk_box_forall [gtkbox.c:702 pc=0xfac8eab8]
               gtk_container_forall [gtkcontainer.c:1265 pc=0xfacf7654]
               gtk_widget_propagate_hierarchy_changed_recurse [gtkwidget.c:4816
pc=0xfaf961d0]
               _gtk_widget_propagate_hierarchy_changed [gtkwidget.c:4853
pc=0xfaf96320]
               gtk_widget_set_parent [gtkwidget.c:4314 pc=0xfaf94920]
               gtk_box_pack_start [gtkbox.c:389 pc=0xfac8d968]
               gtk_file_chooser_dialog_constructor [gtkfilechooserdialog.c:393
pc=0xfad4488c]