[pango] Make hb fonts immutable in the frontend

[Matthias Clasen <matthiasc src gnome org>]

commit c80f0fcf71fd67c6b06039de37bc67e3ecace931
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Jul 18 16:22:35 2019 -0700

    Make hb fonts immutable in the frontend
    
    It makes more sense to do this in the frontend
    that hands the objects out, rather than in each
    backend implementation.

 pango/fonts.c         | 2 ++
 pango/pangocoretext.c | 2 --
 pango/pangofc-font.c  | 2 --
 pango/pangowin32.c    | 2 --
 4 files changed, 2 insertions(+), 6 deletions(-)
---
diff --git a/pango/fonts.c b/pango/fonts.c
index 4ba9d3fe..262ed15f 100644
--- a/pango/fonts.c
+++ b/pango/fonts.c
@@ -1879,6 +1879,8 @@ pango_font_get_hb_font (PangoFont *font)
 
   priv->hb_font = PANGO_FONT_GET_CLASS (font)->create_hb_font (font);
 
+  hb_font_make_immutable (priv->hb_font);
+
   return priv->hb_font;
 }
 
diff --git a/pango/pangocoretext.c b/pango/pangocoretext.c
index 70fd67d4..5faac64c 100644
--- a/pango/pangocoretext.c
+++ b/pango/pangocoretext.c
@@ -223,8 +223,6 @@ pango_core_text_font_create_hb_font (PangoFont *font)
       hb_font = hb_coretext_font_create (ctfont->priv->font_ref);
       hb_font_set_scale (hb_font, size, size);
 
-      hb_font_make_immutable (hb_font);
-
       return hb_font;
     }
 
diff --git a/pango/pangofc-font.c b/pango/pangofc-font.c
index 76afdf7e..22f6df0c 100644
--- a/pango/pangofc-font.c
+++ b/pango/pangofc-font.c
@@ -1029,7 +1029,5 @@ pango_fc_font_create_hb_font (PangoFont *font)
         }
     }
 
-  hb_font_make_immutable (hb_font);
-
   return hb_font;
 }
diff --git a/pango/pangowin32.c b/pango/pangowin32.c
index 0e877820..32f050e2 100644
--- a/pango/pangowin32.c
+++ b/pango/pangowin32.c
@@ -1990,7 +1990,5 @@ pango_win32_font_create_hb_font (PangoFont *font)
   hb_font_set_scale (hb_font, win32font->size, win32font->size);
   hb_face_destroy (face);
 
-  hb_font_make_immutable (hb_font);
-
   return hb_font;
 }