* frame.h (enum fullscreen_type) [HAVE_WINDOW_SYSTEM]: Use more natural
values. Add comment.
(struct frame): Re-arrange layout to avoid extra padding and use bit
fields for output_method, want_fullscreen and vertical_scroll_bar_type.
(FRAME_VERTICAL_SCROLL_BAR_TYPE, FRAME_HAS_VERTICAL_SCROLL_BARS)
(FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT)
(FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT) [!HAVE_WINDOW_SYSTEM]:
Define as no-ops because there are no scroll bars anyway.
* frame.c (make_frame, make_terminal_frame, make_initial_frame):
Adjust users.
* font.c (fset_font_data) [HAVE_XFT || HAVE_FREETYPE]:
Add convenient setter.
(font_put_frame_data, font_get_frame_data): Use it.