[gtk+] assistant: Document style properties as deprecated

[Matthias Clasen <matthiasc src gnome org>]

commit c1dd25d459f5848c4f1d2f843a8c928b28f8c735
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Nov 16 06:10:16 2015 -0500

    assistant: Document style properties as deprecated
    
    No code change.

 gtk/gtkassistant.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkassistant.c b/gtk/gtkassistant.c
index 8813b4b..a2e009e 100644
--- a/gtk/gtkassistant.c
+++ b/gtk/gtkassistant.c
@@ -529,6 +529,13 @@ gtk_assistant_class_init (GtkAssistantClass *class)
                                                      -1, 1, -1,
                                                      GTK_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY));
 
+  /**
+   * GtkAssistant:header-padding:
+   *
+   * Number of pixels around the header.
+   *
+   * Deprecated:3.20: This style property is ignored.
+   */
   gtk_widget_class_install_style_property (widget_class,
                                            g_param_spec_int ("header-padding",
                                                              P_("Header Padding"),
@@ -537,6 +544,14 @@ gtk_assistant_class_init (GtkAssistantClass *class)
                                                              G_MAXINT,
                                                              6,
                                                              GTK_PARAM_READABLE));
+
+  /**
+   * GtkAssistant:content-padding:
+   *
+   * Number of pixels around the content.
+   *
+   * Deprecated:3.20: This style property is ignored.
+   */
   gtk_widget_class_install_style_property (widget_class,
                                            g_param_spec_int ("content-padding",
                                                              P_("Content Padding"),