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

chrome/browser/ui/gtk/browser_toolbar_gtk.h

Index: chrome/browser/ui/gtk/browser_toolbar_gtk.h
===================================================================
--- chrome/browser/ui/gtk/browser_toolbar_gtk.h	(revision 144460)
+++ chrome/browser/ui/gtk/browser_toolbar_gtk.h	(working copy)
@@ -11,7 +11,7 @@
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
-#include "chrome/browser/command_updater.h"
+#include "chrome/browser/command_observer.h"
 #include "chrome/browser/prefs/pref_member.h"
 #include "chrome/browser/ui/gtk/custom_button.h"
 #include "chrome/browser/ui/gtk/menu_gtk.h"
@@ -41,7 +41,7 @@
 
 // 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 {
@@ -87,7 +87,7 @@
 
   void ShowAppMenu();
 
-  // Overridden from CommandUpdater::CommandObserver:
+  // Overridden from CommandObserver:
   virtual void EnabledStateChangedForCommand(int id, bool enabled) OVERRIDE;
 
   // Overridden from MenuGtk::Delegate: