[gtk+] scrolledwindow: fix spurious warnings from previous scrollbar commits

[Christian Hergert <chergert src gnome org>]

commit 4d4883f010cf2d30889a004811106bd65b9b0dea
Author: Christian Hergert <christian hergert me>
Date:   Fri Dec 26 14:19:55 2014 -0800

    scrolledwindow: fix spurious warnings from previous scrollbar commits

 gtk/gtkscrolledwindow.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkscrolledwindow.c b/gtk/gtkscrolledwindow.c
index 7c67704..d8c04a9 100644
--- a/gtk/gtkscrolledwindow.c
+++ b/gtk/gtkscrolledwindow.c
@@ -4017,6 +4017,9 @@ gtk_scrolled_window_realize (GtkWidget *widget)
   priv->hindicator.window = create_indicator_window (scrolled_window, priv->hscrollbar);
   priv->vindicator.window = create_indicator_window (scrolled_window, priv->vscrollbar);
 
+  priv->hindicator.scrollbar = priv->hscrollbar;
+  priv->vindicator.scrollbar = priv->vscrollbar;
+
   gtk_scrolled_window_update_touch_mode (scrolled_window);
 
   dm = gdk_display_get_device_manager (gtk_widget_get_display (widget));