Pretty big leak to the server

[ERDI Gergo <cactus cactus rulez org>]

Showing an empty window and resizing it causes the X server to grow rather
large:

root       709  3.2 72.0 314752 278980 ?     R<   Jun10 649:36 /usr/bin/X11/X

this was done by resizing a window for a couple of seconds with an
opaquely resizing window manager.

Looking at it with memprof shows three leaking code paths:

Leaked 0x80d4b68 (112 bytes)
        (???)
        _gdk_x11_gc_new():
        gdk_gc_new_with_values():
        gdk_window_create_gc():
        gdk_gc_new_with_values():
        gdk_gc_new():
        gdk_window_end_paint():
        gtk_main_do_event():
        gdk_window_process_updates_internal():
        gdk_window_process_all_updates():
        gtk_container_idle_sizer():

Leaked 0x80d4b50 (16 bytes)
        g_malloc(): /home/cactus/prog/gnome/gnome2/glib/gmem.c:137
        gdk_region_copy():
        gdk_gc_set_clip_region():
        gdk_window_paint_init_bg():
        gdk_window_begin_paint_region():
        gtk_main_do_event():
        gdk_window_process_updates_internal():
        gdk_window_process_all_updates():
        gtk_container_idle_sizer():

Leaked 0x80d4b30 (28 bytes)
        g_malloc():
        gdk_region_copy():
        gdk_gc_set_clip_region():
        gdk_window_paint_init_bg():
        gdk_window_begin_paint_region():
        gtk_main_do_event():
        gdk_window_process_updates_internal():
        gdk_window_process_all_updates():
        gtk_container_idle_sizer():

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