[gtkmm] CellRendererAccel: Change CellRendererAccelMode to CellRendererAccel::Mode.

[Murray Cumming <murrayc src gnome org>]

commit 3d2e94457d134f6e9faea51f486abe1f2a95e189
Author: Murray Cumming <murrayc murrayc com>
Date:   Thu Apr 27 14:31:14 2017 +0200

    CellRendererAccel: Change CellRendererAccelMode to CellRendererAccel::Mode.

 gtk/src/cellrendereraccel.ccg |    2 ++
 gtk/src/cellrendereraccel.hg  |    6 +++---
 2 files changed, 5 insertions(+), 3 deletions(-)
---
diff --git a/gtk/src/cellrendereraccel.ccg b/gtk/src/cellrendereraccel.ccg
index 44a6f09..f276a8c 100644
--- a/gtk/src/cellrendereraccel.ccg
+++ b/gtk/src/cellrendereraccel.ccg
@@ -18,6 +18,8 @@
 
 #include <gtk/gtk.h>
 
+using Mode = Gtk::CellRendererAccel::Mode;
+
 namespace Gtk
 {
 
diff --git a/gtk/src/cellrendereraccel.hg b/gtk/src/cellrendereraccel.hg
index c899941..1b450f3 100644
--- a/gtk/src/cellrendereraccel.hg
+++ b/gtk/src/cellrendereraccel.hg
@@ -26,8 +26,6 @@ _PINCLUDE(gtkmm/private/cellrenderertext_p.h)
 namespace Gtk
 {
 
-_WRAP_ENUM(CellRendererAccelMode, GtkCellRendererAccelMode)
-
 /**
  * Renders a keyboard accelerator in a cell.
  *
@@ -44,6 +42,8 @@ class CellRendererAccel : public CellRendererText
   _CLASS_GTKOBJECT(CellRendererAccel, GtkCellRendererAccel, GTK_CELL_RENDERER_ACCEL, Gtk::CellRendererText, 
GtkCellRendererText)
 public:
 
+  _WRAP_ENUM(Mode, GtkCellRendererAccelMode)
+
   _CTOR_DEFAULT
 
 #m4 _CONVERSION(`const char*',`const Glib::ustring&',__GCHARP_TO_USTRING)
@@ -55,7 +55,7 @@ public:
   _WRAP_PROPERTY("accel-key", guint)
   _WRAP_PROPERTY("accel-mods", Gdk::ModifierType)
   _WRAP_PROPERTY("keycode", guint)
-  _WRAP_PROPERTY("accel-mode", CellRendererAccelMode)
+  _WRAP_PROPERTY("accel-mode", Mode)
 
   Glib::PropertyProxy_Base _property_renderable() override;
 };