(x_set_background_color, mac_window, x_create_tip_frame):

(x_set_background_color, mac_window, x_create_tip_frame):
Use mac_set_frame_window_background instead of XSetWindowBackground.
(x_set_tool_bar_lines) [USE_MAC_TOOLBAR]:
Use mac_is_window_toolbar_visible instead of IsWindowToolbarVisible.
(x_set_name_internal) [TARGET_API_MAC_CARBON]: Use mac_set_window_title
instead of SetWindowTitleWithCFString.
(mac_update_proxy_icon) [TARGET_API_MAC_CARBON]: Remove BLOCK_INPUT.
Move function to mactoolbox.c.
(mac_update_title_bar) [TARGET_API_MAC_CARBON]:
Use mac_set_window_modified instead of SetWindowModified.
Add BLOCK_INPUT around mac_set_window_modified/mac_update_proxy_icon.
(mac_window, x_create_tip_frame): Use mac_create_frame_window.
(Fx_focus_frame): Use mac_front_non_floating_window instead of
FrontNonFloatingWindow.  Use mac_activate_window instead of
ActivateWindow.  Use mac_active_non_floating_window instead of
ActiveNonFloatingWindow.
(show_hourglass, hide_hourglass) [TARGET_API_MAC_CARBON]:
Use mac_show_hourglass and mac_hide_hourglass.
(compute_tip_xy) [TARGET_API_MAC_CARBON]: Use mac_get_global_mouse
instead of GetGlobalMouse.
(Fx_show_tip): Use mac_move_window/mac_size_window/mac_show_window
instead of MoveWindow/SizeWindow/ShowWindow, respectively.
Use mac_bring_window_to_front instead of BringToFront.
(Qfile_name_history) [TARGET_API_MAC_CARBON]: Move extern to
mactoolbox.c.
(Fx_file_dialog) [TARGET_API_MAC_CARBON]: Move function body to
mac_file_dialog in mactoolbox.c.  Use mac_file_dialog.
(mac_nav_event_callback) [TARGET_API_MAC_CARBON]: Move function to
mactoolbox.c.