Omit unused frame argument of font API's close function.

* font.h (struct font): Drop frame argument.  Adjust comment.
* font.c (font_clear_cache, font_close_object): Adjust users.
* ftfont.c (ftfont_close):
* ftxfont.c (ftxfont_close):
* macfont.m (macfont_close):
* nsfont.m (nsfont_close):
* w32font.c (w32font_close):
* xfont.c (xfont_close):
* xftfont.c (xftfont_close): Adjust driver-specific close
functions, tweak comments and make functions safe if called
more than once for the same font object.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/font.c b/src/font.c
index 68db9f2ef2d..aaa02c20e48 100644
--- a/src/font.c
+++ b/src/font.c
@@ -2591,7 +2591,7 @@ font_clear_cache (struct frame *f, Lisp_Object cache, struct font_driver *driver
                       if (! NILP (AREF (val, FONT_TYPE_INDEX)))
                         {
                           eassert (font && driver == font->driver);
-                          driver->close (f, font);
+                          driver->close (font);
                         }
                     }
                   if (driver->free_entity)
@@ -2892,7 +2892,7 @@ font_close_object (struct frame *f, Lisp_Object font_object)
     /* Already closed.  */
     return;
   FONT_ADD_LOG ("close", font_object, Qnil);
-  font->driver->close (f, font);
+  font->driver->close (font);
 #ifdef HAVE_WINDOW_SYSTEM
   eassert (FRAME_DISPLAY_INFO (f)->n_fonts);
   FRAME_DISPLAY_INFO (f)->n_fonts--;