Always chain up in ::style-updated

This was not handled consistently, but the default handler
does useful things, so we should always chain up.

gtk/gtkassistant.c

@@ -1123,6 +1123,8 @@ gtk_assistant_style_updated (GtkWidget *widget)
   GtkAssistantPrivate *priv = assistant->priv;
   GList *list;
 
+  GTK_WIDGET_CLASS (gtk_assistant_parent_class)->style_updated (widget);
+
   list = priv->pages;
 
   while (list)

gtk/gtkbutton.c

@@ -1386,6 +1386,8 @@ gtk_button_style_updated (GtkWidget *widget)
 {
   GtkStyleContext *context;
 
+  GTK_WIDGET_CLASS (gtk_button_parent_class)->style_updated (widget);
+
   context = gtk_widget_get_style_context (widget);
 
   gtk_button_update_image_spacing (GTK_BUTTON (widget), context);

gtk/gtkcombobox.c

@@ -1347,6 +1347,8 @@ gtk_combo_box_style_updated (GtkWidget *widget)
   GtkComboBoxPrivate *priv = combo_box->priv;
   GtkWidget *child;
 
+  GTK_WIDGET_CLASS (gtk_combo_box_parent_class)->style_updated (widget);
+
   gtk_combo_box_check_appearance (combo_box);
 
   if (priv->tree_view && priv->cell_view)

gtk/gtkdialog.c

@@ -508,6 +508,8 @@ gtk_dialog_map (GtkWidget *widget)
 static void
 gtk_dialog_style_updated (GtkWidget *widget)
 {
+  GTK_WIDGET_CLASS (gtk_dialog_parent_class)->style_updated (widget);
+
   update_spacings (GTK_DIALOG (widget));
 }
 

gtk/gtkentry.c

@@ -4468,6 +4468,8 @@ gtk_entry_style_updated (GtkWidget *widget)
   gint focus_width;
   gboolean interior_focus;
 
+  GTK_WIDGET_CLASS (gtk_entry_parent_class)->style_updated (widget);
+
   gtk_widget_style_get (widget,
 			"focus-line-width", &focus_width,
 			"interior-focus", &interior_focus,

gtk/gtkfontsel.c

@@ -656,6 +656,8 @@ gtk_font_selection_screen_changed (GtkWidget *widget,
 static void
 gtk_font_selection_style_updated (GtkWidget *widget)
 {
+  GTK_WIDGET_CLASS (gtk_font_selection_parent_class)->style_updated (widget);
+
   /* Maybe fonts where installed or removed... */
   gtk_font_selection_reload_fonts (GTK_FONT_SELECTION (widget));
 }

gtk/gtkhandlebox.c

@@ -512,6 +512,8 @@ gtk_handle_box_style_updated (GtkWidget *widget)
   GtkHandleBox *hb = GTK_HANDLE_BOX (widget);
   GtkHandleBoxPrivate *priv = hb->priv;
 
+  GTK_WIDGET_CLASS (gtk_handle_box_parent_class)->style_updated (widget);
+
   if (gtk_widget_get_realized (widget) &&
       gtk_widget_get_has_window (widget))
     {

gtk/gtkiconview.c

@@ -1479,6 +1479,8 @@ gtk_icon_view_state_flags_changed (GtkWidget     *widget,
 static void
 gtk_icon_view_style_updated (GtkWidget *widget)
 {
+  GTK_WIDGET_CLASS (gtk_icon_view_parent_class)->style_updated (widget);
+
   _gtk_icon_view_update_background (GTK_ICON_VIEW (widget));
   gtk_widget_queue_resize (widget);
 }

gtk/gtkimage.c

@@ -2002,13 +2002,9 @@ gtk_image_get_preferred_height (GtkWidget *widget,
 static void
 gtk_image_style_updated (GtkWidget *widget)
 {
-  GtkImage *image;
-
-  image = GTK_IMAGE (widget);
-
   GTK_WIDGET_CLASS (gtk_image_parent_class)->style_updated (widget);
 
-  icon_theme_changed (image);
+  icon_theme_changed (GTK_IMAGE (widget));
 }
 
 static void

gtk/gtkinfobar.c

@@ -495,6 +495,8 @@ gtk_info_bar_style_updated (GtkWidget *widget)
   gint content_area_spacing;
   gint content_area_border;
 
+  GTK_WIDGET_CLASS (gtk_info_bar_parent_class)->style_updated (widget);
+
   gtk_widget_style_get (widget,
                         "button-spacing", &button_spacing,
                         "action-area-border", &action_area_border,

gtk/gtklabel.c

@@ -3821,6 +3821,8 @@ gtk_label_style_updated (GtkWidget *widget)
 {
   GtkLabel *label = GTK_LABEL (widget);
 
+  GTK_WIDGET_CLASS (gtk_label_parent_class)->style_updated (widget);
+
   /* We have to clear the layout, fonts etc. may have changed */
   gtk_label_clear_layout (label);
   gtk_label_invalidate_wrap_width (label);

gtk/gtklinkbutton.c

@@ -366,9 +366,9 @@ gtk_link_button_add (GtkContainer *container,
 static void
 gtk_link_button_style_updated (GtkWidget *widget)
 {
-  GtkLinkButton *link_button = GTK_LINK_BUTTON (widget);
+  GTK_WIDGET_CLASS (gtk_link_button_parent_class)->style_updated (widget);
 
-  set_link_color (link_button);
+  set_link_color (GTK_LINK_BUTTON (widget));
 }
 
 static void

gtk/gtkmenu.c

@@ -2445,6 +2445,8 @@ gtk_menu_reorder_child (GtkMenu   *menu,
 static void
 gtk_menu_style_updated (GtkWidget *widget)
 {
+  GTK_WIDGET_CLASS (gtk_menu_parent_class)->style_updated (widget);
+
   if (gtk_widget_get_realized (widget))
     {
       GtkMenu *menu = GTK_MENU (widget);

gtk/gtktextview.c

@@ -4143,6 +4143,8 @@ gtk_text_view_style_updated (GtkWidget *widget)
   text_view = GTK_TEXT_VIEW (widget);
   priv = text_view->priv;
 
+  GTK_WIDGET_CLASS (gtk_text_view_parent_class)->style_updated (widget);
+
   if (gtk_widget_get_realized (widget))
     {
       gtk_text_view_set_background (text_view);

gtk/gtktoolbar.c

@@ -1868,11 +1868,13 @@ gtk_toolbar_style_updated (GtkWidget *widget)
   GtkToolbar *toolbar = GTK_TOOLBAR (widget);
   GtkToolbarPrivate *priv = toolbar->priv;
 
+  GTK_WIDGET_CLASS (gtk_toolbar_parent_class)->style_updated (widget);
+
   priv->max_homogeneous_pixels = -1;
 
   if (gtk_widget_get_realized (widget))
     gtk_style_context_set_background (gtk_widget_get_style_context (widget),
-				      gtk_widget_get_window (widget));
+                                      gtk_widget_get_window (widget));
 
   gtk_toolbar_update_button_relief (GTK_TOOLBAR (widget));
 }

gtk/gtktoolbutton.c

@@ -808,6 +808,8 @@ gtk_tool_button_update_icon_spacing (GtkToolButton *button)
 static void
 gtk_tool_button_style_updated (GtkWidget *widget)
 {
+  GTK_WIDGET_CLASS (parent_class)->style_updated (widget);
+
   gtk_tool_button_update_icon_spacing (GTK_TOOL_BUTTON (widget));
 }
 

gtk/gtktreeview.c

@@ -8489,6 +8489,8 @@ gtk_tree_view_style_updated (GtkWidget *widget)
   GList *list;
   GtkTreeViewColumn *column;
 
+  GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->style_updated (widget);
+
   if (gtk_widget_get_realized (widget))
     {
       GtkStyleContext *context;

gtk/gtkviewport.c

@@ -926,11 +926,13 @@ gtk_viewport_adjustment_value_changed (GtkAdjustment *adjustment,
 static void
 gtk_viewport_style_updated (GtkWidget *widget)
 {
+   GTK_WIDGET_CLASS (gtk_viewport_parent_class)->style_updated (widget);
+
    if (gtk_widget_get_realized (widget) &&
        gtk_widget_get_has_window (widget))
      {
         GtkStyleContext *context;
-	GtkViewport *viewport = GTK_VIEWPORT (widget);
+        GtkViewport *viewport = GTK_VIEWPORT (widget);
         GtkViewportPrivate *priv = viewport->priv;
 
         context = gtk_widget_get_style_context (widget);

gtk/gtkwindow.c

@@ -5341,6 +5341,8 @@ gtk_window_style_updated (GtkWidget *widget)
   GtkWindowPrivate *priv = window->priv;
   GdkRectangle rect;
 
+  GTK_WIDGET_CLASS (gtk_window_parent_class)->style_updated (widget);
+
   if (priv->grip_window != NULL && gtk_window_get_resize_grip_area (window, &rect))
     {
       gdk_window_move_resize (priv->grip_window,