Move command handling and updating off Browser and onto a helper object.

chrome/browser/ui/gtk/browser_toolbar_gtk.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_GTK_BROWSER_TOOLBAR_GTK_H_
 #define CHROME_BROWSER_UI_GTK_BROWSER_TOOLBAR_GTK_H_
 #pragma once
 
 #include <gtk/gtk.h>
 #include <string>
@@ skipping 23 matching lines @@
 class LocationBarViewGtk;
 class ReloadButtonGtk;
 class ToolbarModel;
 
 namespace content {
 class WebContents;
 }
 
 // View class that displays the GTK version of the toolbar and routes gtk
 // events back to the Browser.
-class BrowserToolbarGtk : public CommandUpdater::CommandObserver,
+class BrowserToolbarGtk : public CommandObserver,
                           public ui::AcceleratorProvider,
                           public MenuGtk::Delegate,
                           public content::NotificationObserver {
  public:
   BrowserToolbarGtk(Browser* browser, BrowserWindowGtk* window);
   virtual ~BrowserToolbarGtk();
 
   // Create the contents of the toolbar. |top_level_window| is the GtkWindow
   // to which we attach our accelerators.
   void Init(GtkWindow* top_level_window);
@@ skipping 25 matching lines @@
   }
 
   LocationBarViewGtk* GetLocationBarView() { return location_bar_.get(); }
 
   // We have to show padding on the bottom of the toolbar when the bookmark
   // is in floating mode. Otherwise the bookmark bar will paint it for us.
   void UpdateForBookmarkBarVisibility(bool show_bottom_padding);
 
   void ShowAppMenu();
 
-  // Overridden from CommandUpdater::CommandObserver:
+  // Overridden from CommandObserver:
   virtual void EnabledStateChangedForCommand(int id, bool enabled) OVERRIDE;
 
   // Overridden from MenuGtk::Delegate:
   virtual void StoppedShowing() OVERRIDE;
   virtual GtkIconSet* GetIconSetForId(int idr) OVERRIDE;
   virtual bool AlwaysShowIconForCmd(int command_id) const OVERRIDE;
 
   // Overridden from ui::AcceleratorProvider:
   virtual bool GetAcceleratorForCommandId(
       int id,
@@ skipping 115 matching lines @@
   // rendering.
   ui::OwnedWidgetGtk offscreen_entry_;
 
   // Manages the home button drop signal handler.
   scoped_ptr<ui::GtkSignalRegistrar> drop_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserToolbarGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_BROWSER_TOOLBAR_GTK_H_