[gtk+] Remove gdk_event_get_user_data from public headers

[Timm Bäder <baedert src gnome org>]

commit b2c0afce3414d118307b7a05ee285c4bb12f3ff7
Author: Timm Bäder <mail baedert org>
Date:   Wed Aug 16 10:37:17 2017 +0200

    Remove gdk_event_get_user_data from public headers
    
    And add it back in gdk-private.h

 gdk/gdk-private.h |    2 ++
 gdk/gdkevents.c   |    1 +
 gdk/gdkevents.h   |    2 --
 3 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/gdk/gdk-private.h b/gdk/gdk-private.h
index a0d102f..33090ee 100644
--- a/gdk/gdk-private.h
+++ b/gdk/gdk-private.h
@@ -33,4 +33,6 @@ void            gdk_window_move_to_rect         (GdkWindow          *window,
                                                  gint                rect_anchor_dx,
                                                  gint                rect_anchor_dy);
 
+GObject *       gdk_event_get_user_data         (const GdkEvent *event);
+
 #endif /* __GDK__PRIVATE_H__ */
diff --git a/gdk/gdkevents.c b/gdk/gdkevents.c
index 094e32c..2623c9c 100644
--- a/gdk/gdkevents.c
+++ b/gdk/gdkevents.c
@@ -27,6 +27,7 @@
 #include "gdkinternals.h"
 #include "gdkdisplayprivate.h"
 #include "gdkdndprivate.h"
+#include "gdk-private.h"
 
 #include <string.h>
 #include <math.h>
diff --git a/gdk/gdkevents.h b/gdk/gdkevents.h
index 9cf800d..405ccc1 100644
--- a/gdk/gdkevents.h
+++ b/gdk/gdkevents.h
@@ -1570,8 +1570,6 @@ gboolean       gdk_event_get_pointer_emulated (GdkEvent *event);
 GDK_AVAILABLE_IN_3_92
 void           gdk_event_set_user_data (GdkEvent *event,
                                         GObject  *user_data);
-GDK_AVAILABLE_IN_3_92
-GObject *      gdk_event_get_user_data (const GdkEvent *event);
 
 G_END_DECLS