[libadwaita/wip/exalm/less-selectors] button-content: Update for menu button changes

[Alexander Mikhaylenko <alexm src gnome org>]

commit 9a216f556f2c7cbc1ecc5650fee5eeb0eb0b9a1c
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Thu Nov 11 14:40:03 2021 +0500

    button-content: Update for menu button changes
    
    It needs to add a style class to the button. Since that button is internal,
    it needs to do that with GtkMenuButton itself now.

 src/adw-button-content.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)
---
diff --git a/src/adw-button-content.c b/src/adw-button-content.c
index cbe4ea98..91eb355f 100644
--- a/src/adw-button-content.c
+++ b/src/adw-button-content.c
@@ -49,9 +49,8 @@
  * `AdwSplitButton`'s CSS node is called `buttoncontent`. It contains the
  * subnodes `image` and `label`.
  *
- * When inside a `GtkButton` or `AdwSplitButton`, the button will receive the
- * `.image-text-button` style class. When inside a `GtkMenuButton`, the
- * internal `GtkButton` will receive it instead.
+ * When inside a `GtkButton`, `GtkMenuButton` or `AdwSplitButton`, the button
+ * will receive the `.image-text-button` style class.
  *
  * ## Accessibility
  *
@@ -101,9 +100,8 @@ adw_button_content_root (GtkWidget *widget)
 
   self->button = gtk_widget_get_ancestor (GTK_WIDGET (self), GTK_TYPE_BUTTON);
 
-  /* For AdwSplitButton we want to style the split button widget and not the
-   * button inside. */
-  if (ADW_IS_SPLIT_BUTTON (gtk_widget_get_parent (self->button)))
+  if (GTK_IS_MENU_BUTTON (gtk_widget_get_parent (self->button)) ||
+      ADW_IS_SPLIT_BUTTON (gtk_widget_get_parent (self->button)))
     self->button = gtk_widget_get_parent (self->button);
 
   gtk_widget_add_css_class (self->button, "image-text-button");