Except for the self checks code.

		     Change code that used a ArtIRect as a "frame" to use
		     NautilusDimensions instead.  Change all foo_frame functions to
		     foo_dimensions.

		     * libnautilus-extensions/nautilus-art-extensions.h:
		     Add a new structure to represent dimensions using signed integers.
		     Retire nautilus_art_ipoint_assign.
		     * libnautilus-extensions/nautilus-art-extensions.c:
		     (nautilus_dimensions_empty): New function to check for empty
		     dimensions.
		     (nautilus_art_irect_assign_dimensions): New function to assign
		     dimensions to a rectangle.
		     (nautilus_self_check_art_extensions): New self checks.

		     * libnautilus-extensions/nautilus-art-gtk-extensions.h:
		     * libnautilus-extensions/nautilus-art-gtk-extensions.c:
		     (nautilus_gdk_rectangle_to_art_irect),
		     (nautilus_screen_get_dimensions), (nautilus_gdk_window_get_bounds),
		     (nautilus_gdk_window_get_screen_relative_bounds),
		     (nautilus_gtk_widget_get_bounds),
		     (nautilus_gtk_widget_get_dimensions),
		     (nautilus_gdk_window_clip_dirty_area_to_screen),
		     (nautilus_art_irect_to_gdk_rectangle),
		     (nautilus_gdk_window_get_dimensions): New function to get
		     the dimensions of a GdkWindow.
		     Update for frame to dimensions changes.  Change functions names to
		     lose the "irect" sub-prefix.

		     * libnautilus-extensions/nautilus-gdk-pixbuf-extensions.h:
		     * libnautilus-extensions/nautilus-gdk-pixbuf-extensions.c:
		     (nautilus_gdk_pixbuf_get_dimensions),
		     (nautilus_gdk_pixbuf_fill_rectangle_with_color),
		     (nautilus_gdk_pixbuf_draw_to_drawable),
		     (nautilus_gdk_pixbuf_draw_to_pixbuf),
		     (nautilus_gdk_pixbuf_draw_to_pixbuf_alpha),
		     (nautilus_gdk_pixbuf_new_from_pixbuf_sub_area),
		     (pixbuf_draw_tiled), (nautilus_gdk_pixbuf_draw_to_pixbuf_tiled),
		     (nautilus_gdk_pixbuf_draw_to_drawable_tiled),
		     (nautilus_gdk_pixbuf_intersect): New functions
		     (nautilus_self_check_gdk_pixbuf_extensions): New self checks.
		     Update for frame vs dimenensions changes.  Simplify clipping code
		     by using nautilus_gdk_pixbuf_intersect.  Move
		     nautilus_gdk_window_get_dimensions to
		     nautilus_gdk_window_get_dimensions in art-gtk-extensions.

		     * libnautilus-extensions/nautilus-debug-drawing.c:
		     (debug_pixbuf_viewer_size_request),
		     (nautilus_debug_pixbuf_draw_point),
		     (nautilus_debug_pixbuf_draw_rectangle),
		     (nautilus_debug_pixbuf_draw_rectangle_inset):
		     Update for frame vs dimenensions changes.

		     * libnautilus-extensions/nautilus-clickable-image.c:
		     (label_handle_motion):
		     Update for art-gtk extensions changes.

		     * libnautilus-extensions/nautilus-glyph.h:
		     * libnautilus-extensions/nautilus-glyph.c: (nautilus_glyph_new):
		     Change order of parameters to match NautilusScalalbleFont.
		     (nautilus_glyph_get_dimensions), (nautilus_glyph_draw_to_pixbuf):
		     Update for frame vs dimenensions changes.

		     * libnautilus-extensions/nautilus-lib-self-check-functions.h:
		     New declaration for art_extensions and gdk_pixbuf_extensions.

		     * libnautilus-extensions/nautilus-self-checks.c:
		     (nautilus_check_rectangle_result),
		     (nautilus_check_dimensions_result):
		     * libnautilus-extensions/nautilus-self-checks.h:
		     Add support for checking functions that return rectangles and
		     dimensions.

		     * libnautilus-extensions/nautilus-scalable-font.h:
		     * libnautilus-extensions/nautilus-scalable-font.c:
		     (nautilus_scalable_font_measure_text): Return
		     NautilusDimensions instead of using pointer parameters.
		     (nautilus_scalable_font_text_width): Simplify by calling
		     scalable_font_measure_text.
		     (nautilus_scalable_font_draw_text),
		     (nautilus_scalable_font_measure_text_lines),
		     (nautilus_scalable_font_draw_text_lines_with_dimensions),
		     (nautilus_scalable_font_draw_text_lines):
		     Update for frame vs dimenensions changes.  Use NautilusDimensions
		     arrays instead of individial width and height arrays.  Change all
		     function signatures to pass in only a font_size instead of both
		     font_width and font_height.  Simplifies using these a bit.
		     (nautilus_scalable_font_largest_fitting_font_size): Fix bug where
		     we were always using the wrong font size to compute the largest
		     fitting font.

		     * libnautilus-extensions/nautilus-icon-factory.c: (embed_text):
		     Update for scalable font font_size api changes.

		     * libnautilus-extensions/nautilus-image-table.c:
		     (image_table_clear_dirty_areas):
		     Update for frame vs dimenensions changes.

		     * libnautilus-extensions/nautilus-image.c:
		     (nautilus_image_size_request), (image_get_pixbuf_dimensions),
		     (image_get_pixbuf_bounds), (image_get_tile_dimensions):
		     Update for frame vs dimenensions changes.

		     * libnautilus-extensions/nautilus-label.h:
		     * libnautilus-extensions/nautilus-label.c:
		     (nautilus_label_initialize_class), (nautilus_label_set_arg),
		     (nautilus_label_get_arg), (nautilus_label_size_request),
		     (nautilus_label_size_allocate), (label_composite_pixbuf_callback),
		     (label_draw_text_to_pixbuf): Fix a type.  Was using [x,x] instead
		     of [x,y] to render the string.
		     (label_get_text_dimensions), (label_get_text_bounds),
		     (label_get_tile_dimensions), (label_line_geometries_clear),
		     (label_line_geometries_recompute),
		     Update for frame vs dimenensions changes.  Make the
		     'smooth_line_wrap' attribute an int instead of a guint.  Use an
		     array of NautilusDimensions to store text lines geometries instead
		     of separete width and height arrays.
		     (label_get_default_line_wrap_width),
		     (nautilus_label_set_smooth_line_wrap_width),
		     (nautilus_label_get_smooth_line_wrap_width):
		     Change signature to return an int instead of a guint.

		     * libnautilus-extensions/nautilus-labeled-image.c:
		     (nautilus_labeled_image_size_request),
		     (labeled_image_get_image_dimensions),
		     (labeled_image_get_label_dimensions),
		     (labeled_image_get_image_bounds_fill),
		     (nautilus_labeled_image_get_image_bounds),
		     (labeled_image_get_label_bounds_fill),
		     (nautilus_labeled_image_get_label_bounds),
		     (labeled_image_get_content_dimensions),
		     (labeled_image_get_content_bounds):
		     Update for frame vs dimenensions changes.

		     * libnautilus-extensions/nautilus-smooth-widget.h:
		     * libnautilus-extensions/nautilus-smooth-widget.c:
		     (smooth_widget_paint_tile_transparent),
		     (nautilus_smooth_widget_get_preferred_dimensions):
		     Update for frame vs dimenensions changes.

		     * libnautilus-extensions/nautilus-tabs.c: (measure_tab_name),
		     (draw_tab_label):
		     Update for font api changes.

		     * libnautilus-extensions/nautilus-text-layout.c:
		     (nautilus_text_layout_new), (nautilus_text_layout_paint):
		     Update for frame vs dimenensions changes.

		     * libnautilus-extensions/nautilus-wrap-table.c:
		     (nautilus_wrap_table_size_request), (wrap_table_layout),
		     (wrap_table_art_irect_max_dimensions),
		     (wrap_table_get_max_child_dimensions),
		     (wrap_table_get_content_dimensions):
		     Update for frame vs dimenensions changes.

		     * src/nautilus-about.c: (draw_aa_string):
		     Update for frame vs dimenensions changes.

		     * src/nautilus-sidebar-tabs.c: (draw_one_tab_plain),
		     (draw_one_tab_themed), (get_tab_width):
		     Update for frame vs dimenensions changes.

		     * test/test-nautilus-font-simple.c: (main):
		     * test/test-nautilus-font.c: (main):
		     * test/test-nautilus-glyph-simple.c: (glyph_new):
		     * test/test-nautilus-glyph.c: (glyph_new), (main):
		     * test/test-nautilus-pixbuf-tile.c:
		     * test/test.c: (test_pixbuf_draw_rectangle_tiled):
		     Update test for frame vs dimenensions changes and font api
		     changes.