[metacity] window-props: convert WM_CLASS to UTF-8

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 8ae75e57a5c4f5e152a8ed4cf71f8632ac2ee8be
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Mon Nov 19 18:31:08 2018 +0200

    window-props: convert WM_CLASS to UTF-8
    
    WM_NAME part is fixed differently in 206ef11aa9d09c91 commit.
    
    Based on mutter commit:
    https://gitlab.gnome.org/GNOME/mutter/commit/d62491f46eba748ece82

 src/core/window-props.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/src/core/window-props.c b/src/core/window-props.c
index 9001d881..32f47614 100644
--- a/src/core/window-props.c
+++ b/src/core/window-props.c
@@ -1009,10 +1009,12 @@ reload_wm_class (MetaWindow    *window,
   if (value->type != META_PROP_VALUE_INVALID)
     {
       if (value->v.class_hint.res_name)
-        window->res_name = g_strdup (value->v.class_hint.res_name);
+        window->res_name = g_convert (value->v.class_hint.res_name, -1,
+                                      "UTF-8", "LATIN1", NULL, NULL, NULL);
 
       if (value->v.class_hint.res_class)
-        window->res_class = g_strdup (value->v.class_hint.res_class);
+        window->res_class = g_convert (value->v.class_hint.res_class, -1,
+                                       "UTF-8", "LATIN1", NULL, NULL, NULL);
     }
 
   meta_verbose ("Window %s class: '%s' name: '%s'\n",