[gtk+] Add some new function prototypes to gtkquartz.h.

[John Ralls <jralls src gnome org>]

commit 5416db16f365da2ceb5c37be820f42cf1bd3e6fd
Author: John Ralls <jralls ceridwen us>
Date:   Sat Nov 5 15:01:28 2016 -0700

    Add some new function prototypes to gtkquartz.h.
    
    Fixes compile errors (-Werror,-Wmissing-prototypes).

 gtk/gtkquartz.h |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkquartz.h b/gtk/gtkquartz.h
index 120168a..bf7dee6 100644
--- a/gtk/gtkquartz.h
+++ b/gtk/gtkquartz.h
@@ -38,6 +38,13 @@ void _gtk_quartz_set_selection_data_for_pasteboard (NSPasteboard *pasteboard,
                                                    GtkSelectionData *selection_data);
 
 NSImage *_gtk_quartz_create_image_from_surface (cairo_surface_t *surface);
+void _gtk_clipboard_handle_event (GdkEventOwnerChange *event);
+void _gtk_clipboard_store_all (void);
+const gchar * _gtk_get_datadir (void);
+const gchar * _gtk_get_libdir (void);
+const gchar * _gtk_get_localedir (void);
+const gchar * _gtk_get_sysconfdir (void);
+const gchar * _gtk_get_data_prefix (void);
 
 G_END_DECLS