* emacs.c (USAGE3, standard_args): Add -mm and --maximized.

* emacs.c (USAGE3, standard_args): Add -mm and --maximized.

* frame.c: Qmaximized is new.
(x_set_frame_parameters): Do not handle fullscreen specially.
Only set width and height if explicitly set.
(x_set_fullscreen): Handle Qmaximized.
(x_set_font, x_figure_window_size): Do not handle fullscreen specially.
(syms_of_frame): Initialize Qmaximized.

* frame.h (fullscreen_type): Add FULLSCREEN_MAXIMIZED.  Declare
Qfullwidth, Qfullheight, Qfullboth, Qmaximized.

* xterm.c (handle_one_xevent): Remove call to x_check_fullscreen
for Expose event. Add call to x_check_fullscreen for MapNotify event.
Remove all code w.r.t. fullscreen from ConfigureNotify event. Do not
set gravity to NorthWestGravity when USE_GTK.
(set_wm_state): New function.
(do_ewmh_fullscreen): Use set_wm_state. Also handle FULLSCREEN_MAXIMIZED.
(x_handle_net_wm_state): Handle FULLSCREEN_MAXIMIZED.
(x_check_fullscreen): Simplify so we only handle EMWH type of fullscreen
or the case when no window manager is running. That means remove calls
to x_real_positions and x_fullscreen_adjust.

* gtkutil.c (flush_and_sync, x_wm_size_hint_off): Remove.
(xg_frame_set_char_size): Remove calls to x_wm_size_hint_off and
flush_and_sync.
(xg_height_changed): New function.
(xg_create_frame_widgets): Remove call to gtk_widget_set_size_request
and gtk_window_set_policy.  Set frame gravity after parsing the geometry
string.
(xg_update_frame_menubar, free_frame_menubar)
(xg_tool_bar_detach_callback, xg_tool_bar_attach_callback)
(update_frame_tool_bar, free_frame_tool_bar): Call xg_height_changed.
Remove calls to xg_frame_set_char_size.

* startup.el (command-line-x-option-alist): Add -mm and --maximized.

* NEWS: Mention maximized.

* frames.texi (Size Parameters): Mention maximized for fullscreen.

* xresources.texi (Table of Resources): Mention maximized for
fullscreen.

* cmdargs.texi (Window Size X): -mm/--maximized is new.