Use undoview from deps/third_party/

third_party/undoview/undo_view.h

Index: third_party/undoview/undo_view.h
===================================================================
--- third_party/undoview/undo_view.h	(revision 119883)
+++ third_party/undoview/undo_view.h	(working copy)
@@ -1,50 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Boilerplate code was generated by http://burtonini.com/cgi/gobject.py
-
-#ifndef UNDOVIEW_UNDO_VIEW_H_
-#define UNDOVIEW_UNDO_VIEW_H_
-
-#include <gtk/gtk.h>
-#include "undo_manager.h"
-
-G_BEGIN_DECLS
-
-#define GTK_TYPE_UNDO_VIEW gtk_undo_view_get_type()
-
-#define GTK_UNDO_VIEW(obj) \
-  (G_TYPE_CHECK_INSTANCE_CAST((obj), GTK_TYPE_UNDO_VIEW, GtkUndoView))
-
-#define GTK_UNDO_VIEW_CLASS(klass) \
-  (G_TYPE_CHECK_CLASS_CAST((klass), GTK_TYPE_UNDO_VIEW, GtkUndoViewClass))
-
-#define GTK_IS_UNDO_VIEW(obj) \
-  (G_TYPE_CHECK_INSTANCE_TYPE((obj), GTK_TYPE_UNDO_VIEW))
-
-#define GTK_IS_UNDO_VIEW_CLASS(klass) \
-  (G_TYPE_CHECK_CLASS_TYPE((klass), GTK_TYPE_UNDO_VIEW))
-
-#define GTK_UNDO_VIEW_GET_CLASS(obj) \
-  (G_TYPE_INSTANCE_GET_CLASS((obj), GTK_TYPE_UNDO_VIEW, GtkUndoViewClass))
-
-typedef struct {
-  GtkTextView parent;
-  GtkSourceUndoManager *undo_manager_;
-} GtkUndoView;
-
-typedef struct {
-  GtkTextViewClass parent_class;
-
-  void (*undo)(GtkUndoView *);
-  void (*redo)(GtkUndoView *);
-} GtkUndoViewClass;
-
-GType gtk_undo_view_get_type(void);
-
-GtkWidget* gtk_undo_view_new(GtkTextBuffer *buffer);
-
-G_END_DECLS
-
-#endif  // UNDOVIEW_UNDO_VIEW_H_