(Qauto_raise, Qauto_lower, ...): Declare extern all frame

(Qauto_raise, Qauto_lower, ...): Declare extern all frame
parameter related vars defined in frame.c.
(EMACS_CLASS): Define here.
(enum FULLSCREEN_*): Define here.
(x_set_scroll_bar_default_width, x_wm_set_icon_position)
(x_set_offset, x_new_font, x_new_fontset): Add prototypes.
(x_fullscreen_adjust, x_set_frame_parameters, x_report_frame_params)
(x_set_fullscreen, x_set_line_spacing, x_set_screen_gamma, x_set_font)
(x_set_fringe_width, x_set_border_width, x_set_internal_border_width)
(x_set_visibility, x_set_autoraise, x_set_autolower)
(x_set_unsplittable, x_set_vertical_scroll_bars)
(x_set_scroll_bar_width, x_icon_type, validate_x_resource_name)
(x_figure_window_size): Add prototypes.