[gtk+/scrollable-indicator] scrolledwindow: increase undershoot size

[Lapo Calamandrei <lapo src gnome org>]

commit 6a40e3509701e14a7faf54ea70a587e645e4dc54
Author: Lapo Calamandrei <calamandrei gmail com>
Date:   Wed Nov 12 13:37:21 2014 +0100

    scrolledwindow: increase undershoot size

 gtk/gtkscrolledwindow.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkscrolledwindow.c b/gtk/gtkscrolledwindow.c
index 8a4aa6c..f18106a 100644
--- a/gtk/gtkscrolledwindow.c
+++ b/gtk/gtkscrolledwindow.c
@@ -1822,7 +1822,7 @@ gtk_scrolled_window_draw_overshoot (GtkScrolledWindow *scrolled_window,
   gtk_style_context_restore (context);
 }
 
-#define UNDERSHOOT_SIZE 20
+#define UNDERSHOOT_SIZE 40
 #define GTK_STYLE_CLASS_UNDERSHOOT "undershoot"
 
 static void