Cleanup GTK toolbar tooltips. Move from GtkTooltips to GtkTooltip API.

chrome/browser/gtk/browser_toolbar_gtk.h

 // Copyright (c) 2009 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.
 
 #ifndef CHROME_BROWSER_GTK_BROWSER_TOOLBAR_GTK_H_
 #define CHROME_BROWSER_GTK_BROWSER_TOOLBAR_GTK_H_
 
 #include <gtk/gtk.h>
 #include <string>
 
@@ skipping 85 matching lines @@
   // Displays the app menu.
   void RunAppMenu(GdkEvent* button_press_event);
 
   // Construct the Home button.
   CustomDrawButton* MakeHomeButton();
 
   // Gtk widgets. The toolbar is an hbox with each of the other pieces of the
   // toolbar placed side by side.
   GtkWidget* toolbar_;
 
-  // Tooltip container for all GTK widgets in this class.
-  GtkTooltips* toolbar_tooltips_;
-
   // The location bar view.
   scoped_ptr<LocationBarViewGtk> location_bar_;
 
   // A pointer to our window's accelerator list.
   GtkAccelGroup* accel_group_;
 
   // All the buttons in the toolbar.
   scoped_ptr<CustomDrawButton> back_, forward_;
   scoped_ptr<CustomDrawButton> reload_;
   scoped_ptr<CustomDrawButton> home_;  // May be NULL.
@@ skipping 38 matching lines @@
   // The back/forward menu gets reset every time it is shown.
   scoped_ptr<MenuGtk> back_forward_menu_;
 
   scoped_ptr<BackForwardMenuModelGtk> back_menu_model_;
   scoped_ptr<BackForwardMenuModelGtk> forward_menu_model_;
 
   ScopedRunnableMethodFactory<BrowserToolbarGtk> show_menu_factory_;
 };
 
 #endif  // CHROME_BROWSER_GTK_BROWSER_TOOLBAR_GTK_H_