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

chrome/browser/ui/gtk/location_bar_view_gtk.h

Index: chrome/browser/ui/gtk/location_bar_view_gtk.h
===================================================================
--- chrome/browser/ui/gtk/location_bar_view_gtk.h	(revision 144460)
+++ chrome/browser/ui/gtk/location_bar_view_gtk.h	(working copy)
@@ -16,7 +16,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/memory/weak_ptr.h"
-#include "chrome/browser/command_updater.h"
+#include "chrome/browser/command_observer.h"
 #include "chrome/browser/extensions/extension_context_menu_model.h"
 #include "chrome/browser/extensions/image_loading_tracker.h"
 #include "chrome/browser/prefs/pref_member.h"
@@ -61,7 +61,7 @@
                            public LocationBar,
                            public LocationBarTesting,
                            public content::NotificationObserver,
-                           public CommandUpdater::CommandObserver {
+                           public CommandObserver {
  public:
   explicit LocationBarViewGtk(Browser* browser);
   virtual ~LocationBarViewGtk();
@@ -163,7 +163,7 @@
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
-  // CommandUpdater::CommandObserver:
+  // CommandObserver:
   virtual void EnabledStateChangedForCommand(int id, bool enabled) OVERRIDE;
 
   // Edit background color.