[libwnck/wip/muktupavels/icons: 5/8] icon-cache: make get_icon_invalidated static

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 8f72e3b257797c72ace4d8426adbf3c676ca678a
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Mon Mar 14 20:01:40 2022 +0200

    icon-cache: make get_icon_invalidated static

 libwnck/wnck-icon-cache-private.h | 1 -
 libwnck/wnck-icon-cache.c         | 5 ++++-
 2 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/libwnck/wnck-icon-cache-private.h b/libwnck/wnck-icon-cache-private.h
index b9c754d3..73467778 100644
--- a/libwnck/wnck-icon-cache-private.h
+++ b/libwnck/wnck-icon-cache-private.h
@@ -34,7 +34,6 @@ WnckIconCache *_wnck_icon_cache_new                  (Window          xwindow,
                                                       WnckScreen     *screen);
 void           _wnck_icon_cache_property_changed     (WnckIconCache  *icon_cache,
                                                       Atom            atom);
-gboolean       _wnck_icon_cache_get_icon_invalidated (WnckIconCache  *icon_cache);
 void           _wnck_icon_cache_set_want_fallback    (WnckIconCache  *icon_cache,
                                                       gboolean        setting);
 gboolean       _wnck_icon_cache_get_is_fallback      (WnckIconCache  *icon_cache);
diff --git a/libwnck/wnck-icon-cache.c b/libwnck/wnck-icon-cache.c
index 9b4f1f90..bb5cda2d 100644
--- a/libwnck/wnck-icon-cache.c
+++ b/libwnck/wnck-icon-cache.c
@@ -69,6 +69,9 @@ static guint icon_cache_signals[LAST_SIGNAL] = { 0 };
 
 G_DEFINE_TYPE (WnckIconCache, _wnck_icon_cache, G_TYPE_OBJECT)
 
+static gboolean
+_wnck_icon_cache_get_icon_invalidated (WnckIconCache *icon_cache);
+
 static gboolean
 find_best_size (gulong  *data,
                 gulong   nitems,
@@ -604,7 +607,7 @@ _wnck_icon_cache_property_changed (WnckIconCache *icon_cache,
   emit_invalidated (icon_cache);
 }
 
-gboolean
+static gboolean
 _wnck_icon_cache_get_icon_invalidated (WnckIconCache *icon_cache)
 {
   if (icon_cache->origin <= USING_KWM_WIN_ICON &&