Add notifications content settings type.

chrome/browser/gtk/options/content_settings_window_gtk.cc

 // Copyright (c) 2010 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.
 
 #include "chrome/browser/gtk/options/content_settings_window_gtk.h"
 
 #include <string>
 
 #include "app/l10n_util.h"
 #include "base/command_line.h"
@@ skipping 96 matching lines @@
     gtk_notebook_append_page(
         GTK_NOTEBOOK(notebook_),
         kNotebookPages[i].widget,
         gtk_label_new((" " + label + " ").c_str()));
   }
 
   gtk_notebook_set_tab_pos(GTK_NOTEBOOK(notebook_), GTK_POS_LEFT);
 
   gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog_)->vbox), notebook_);
 
-  DCHECK_EQ(gtk_notebook_get_n_pages(GTK_NOTEBOOK(notebook_)),
+  // TODO(thakis): Get rid of |+ 1| once the notifcations pane is done.
+  DCHECK_EQ(gtk_notebook_get_n_pages(GTK_NOTEBOOK(notebook_)) + 1,
             CONTENT_SETTINGS_NUM_TYPES);
 
   // Need to show the notebook before connecting switch-page signal, otherwise
   // we'll immediately get a signal switching to page 0 and overwrite our
   // last_selected_page_ value.
   gtk_util::ShowDialogWithLocalizedSize(dialog_, -1, -1, true);
 
   g_signal_connect(notebook_, "switch-page",
                    G_CALLBACK(OnSwitchPageThunk), this);
 
@@ skipping 33 matching lines @@
   int index = page_num;
   DCHECK(index > CONTENT_SETTINGS_TYPE_DEFAULT &&
          index < CONTENT_SETTINGS_NUM_TYPES);
   last_selected_page_.SetValue(index);
 }
 
 void ContentSettingsWindowGtk::OnWindowDestroy(GtkWidget* widget) {
   settings_window = NULL;
   MessageLoop::current()->DeleteSoon(FROM_HERE, this);
 }