[gtk/about-dialog-icon-size: 7/7] iconhelper: Recreate the texture when needed

[Matthias Clasen <matthiasc src gnome org>]

commit 73fb28a0580b5a704bc3d71ed398abb4dd987e70
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Jan 11 16:37:55 2021 -0500

    iconhelper: Recreate the texture when needed
    
    When the icon size changes, we want to reload themed
    icons.
    
    This was showing up as the GtkImage in about dialogs
    getting a big size with the same small icon upon
    changing -gtk-icon-size in the inspector.

 gtk/gtkiconhelper.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/gtk/gtkiconhelper.c b/gtk/gtkiconhelper.c
index 39ccaf044b..54b06396f6 100644
--- a/gtk/gtkiconhelper.c
+++ b/gtk/gtkiconhelper.c
@@ -348,7 +348,8 @@ gtk_icon_helper_invalidate_for_change (GtkIconHelper     *self,
                                        GtkCssStyleChange *change)
 {
   if (change == NULL ||
-      gtk_css_style_change_affects (change, GTK_CSS_AFFECTS_ICON_TEXTURE))
+      gtk_css_style_change_affects (change, GTK_CSS_AFFECTS_ICON_TEXTURE |
+                                            GTK_CSS_AFFECTS_ICON_SIZE))
     {
       /* Avoid the queue_resize in gtk_icon_helper_invalidate */
       g_clear_object (&self->paintable);