[gtkmm] TreeView: Change TreeViewGridLines to GridLines.

[Murray Cumming <murrayc src gnome org>]

commit c30652d657719a5ce79cf09b5add297d6336e68b
Author: Murray Cumming <murrayc murrayc com>
Date:   Thu Apr 27 21:33:57 2017 +0200

    TreeView: Change TreeViewGridLines to GridLines.

 gtk/src/treeview.ccg    |    2 ++
 gtk/src/treeview.hg     |    6 +++---
 tools/m4/convert_gtk.m4 |    2 +-
 3 files changed, 6 insertions(+), 4 deletions(-)
---
diff --git a/gtk/src/treeview.ccg b/gtk/src/treeview.ccg
index 17ea640..e22f95b 100644
--- a/gtk/src/treeview.ccg
+++ b/gtk/src/treeview.ccg
@@ -25,6 +25,8 @@
 #include <gtkmm/entry.h>
 #include <gtk/gtk.h>
 
+using GridLines = Gtk::TreeView::GridLines;
+
 namespace
 {
 
diff --git a/gtk/src/treeview.hg b/gtk/src/treeview.hg
index 5ba464b..6128838 100644
--- a/gtk/src/treeview.hg
+++ b/gtk/src/treeview.hg
@@ -38,7 +38,6 @@ namespace Gtk
 {
 
 _CC_INCLUDE(gtk/gtk.h)
-_WRAP_ENUM(TreeViewGridLines, GtkTreeViewGridLines)
 
 
 #ifndef DOXYGEN_SHOULD_SKIP_THIS
@@ -105,6 +104,7 @@ class TreeView
           gtk_tree_view_insert_column_with_data_func, gtk_tree_view_get_drag_dest_row, 
gtk_tree_view_get_dest_row_at_pos)
 public:
   _WRAP_ENUM(DropPosition, GtkTreeViewDropPosition)
+  _WRAP_ENUM(GridLines, GtkTreeViewGridLines)
 
   /**  A visible column in a Gtk::TreeView widget.
    */
@@ -707,8 +707,8 @@ public:
    */
   void unset_row_separator_func();
 
-  _WRAP_METHOD(void set_grid_lines(TreeViewGridLines grid_lines), gtk_tree_view_set_grid_lines)
-  _WRAP_METHOD(TreeViewGridLines get_grid_lines() const, gtk_tree_view_get_grid_lines)
+  _WRAP_METHOD(void set_grid_lines(GridLines grid_lines), gtk_tree_view_set_grid_lines)
+  _WRAP_METHOD(GridLines get_grid_lines() const, gtk_tree_view_get_grid_lines)
 
   _WRAP_METHOD(void set_enable_tree_lines(bool enable = true), gtk_tree_view_set_enable_tree_lines)
   _WRAP_METHOD(bool get_enable_tree_lines() const, gtk_tree_view_get_enable_tree_lines)
diff --git a/tools/m4/convert_gtk.m4 b/tools/m4/convert_gtk.m4
index ac0a350..3b6f2a9 100644
--- a/tools/m4/convert_gtk.m4
+++ b/tools/m4/convert_gtk.m4
@@ -122,7 +122,7 @@ _CONV_ENUM(Gtk,ToolPaletteDragTargets)
 _CONV_INCLASS_ENUM(Gtk,TreeModel,Flags)
 _CONV_ENUM(Gtk,TreeViewColumnSizing)
 _CONV_INCLASS_ENUM(Gtk,TreeView,DropPosition)
-_CONV_ENUM(Gtk,TreeViewGridLines)
+_CONV_INCLASS_ENUM(Gtk,TreeView,GridLines)
 _CONV_ENUM(Gtk,UpdateType)
 _CONV_ENUM(Gtk,Visibility)
 _CONV_ENUM(Gtk,WindowPosition)