* libnautilus-extensions/nautilus-directory-background.c:
	(desktop_background_realized), (nautilus_background_set_desktop),
	(nautilus_background_is_desktop),
	(nautilus_background_get_desktop_background_window),
	(image_loading_done_callback),
	(nautilus_file_update_desktop_pixmaps),
	(background_changed_callback), (saved_settings_changed_callback),
	(background_reset_callback),
	(nautilus_connect_desktop_background_to_file_metadata):
	* libnautilus-extensions/nautilus-directory-background.h:
	* src/file-manager/fm-icon-view.c: (fm_icon_view_begin_loading):
	Set the background pixmap of the desktop xwindow so that the
	window manager paints background behind nautilus windows instead
	of leaving trails.