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

chrome/browser/ui/gtk/global_menu_bar.h

Index: chrome/browser/ui/gtk/global_menu_bar.h
===================================================================
--- chrome/browser/ui/gtk/global_menu_bar.h	(revision 144460)
+++ chrome/browser/ui/gtk/global_menu_bar.h	(working copy)
@@ -8,7 +8,7 @@
 #include <map>
 
 #include "base/compiler_specific.h"
-#include "chrome/browser/command_updater.h"
+#include "chrome/browser/command_observer.h"
 #include "chrome/browser/prefs/pref_change_registrar.h"
 #include "chrome/browser/ui/gtk/global_history_menu.h"
 #include "content/public/browser/notification_observer.h"
@@ -30,7 +30,7 @@
 // GtkMenuBar found. Thankfully, these systems don't check to see if the menu
 // bar itself is visible, so we insert a GtkMenuBar into the window hierarchy
 // and set it to be invisible.
-class GlobalMenuBar : public CommandUpdater::CommandObserver,
+class GlobalMenuBar : public CommandObserver,
                       public content::NotificationObserver {
  public:
   static const int TAG_NORMAL = 0;
@@ -65,7 +65,7 @@
                            std::map<int, GtkWidget*>* id_to_menu_item,
                            GtkWidget* menu_to_add_to);
 
-  // CommandUpdater::CommandObserver:
+  // CommandObserver:
   virtual void EnabledStateChangedForCommand(int id, bool enabled) OVERRIDE;
 
   // content::NotificationObserver: