[gtk+/wip/matthiasc/gadget-for-merge-2] paned: Add a deprecation note

[Matthias Clasen <matthiasc src gnome org>]

commit 3ff83149569d489149327d1e7338d9a55c0a1ed0
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Dec 15 06:49:35 2015 -0500

    paned: Add a deprecation note

 gtk/gtkpaned.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkpaned.c b/gtk/gtkpaned.c
index 950824b..dbd60cc 100644
--- a/gtk/gtkpaned.c
+++ b/gtk/gtkpaned.c
@@ -419,6 +419,13 @@ gtk_paned_class_init (GtkPanedClass *class)
                                                          FALSE,
                                                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
+  /**
+   * GtkPaned::handle-size:
+   *
+   * The width of the handle.
+   *
+   * Deprecated: 3.20: Use CSS min-width and min-height instead.
+   */
   gtk_widget_class_install_style_property (widget_class,
                                           g_param_spec_int ("handle-size",
                                                             P_("Handle Size"),