GitLab

 lisp/window.el (window-font-width, window-font-height)
 (window-max-chars-per-line): New functions.
 lisp/simple.el (default-font-height): Doc fix.
 (default-font-width): New function.

 etc/NEWS: Mention `default-font-width', `window-font-height',
 `window-font-width', and `window-max-chars-per-line'.