We removed the parameter from callers and from the implementation, but
not from the signature up top. I didn't notice because the branch I was
working on removed the signature entirely.
GValue *value,
GParamSpec *pspec);
-static void gdk_window_clear_backing_region (GdkWindow *window,
- cairo_region_t *region);
+static void gdk_window_clear_backing_region (GdkWindow *window);
static void recompute_visible_regions (GdkWindow *private,
gboolean recalculate_children);