Views: Rebuild wrench menu if error is added or removed

chrome/browser/ui/views/wrench_menu.h

Index: chrome/browser/ui/views/wrench_menu.h
===================================================================
--- chrome/browser/ui/views/wrench_menu.h	(revision 104036)
+++ chrome/browser/ui/views/wrench_menu.h	(working copy)
@@ -11,6 +11,8 @@
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/bookmarks/base_bookmark_model_observer.h"
+#include "content/common/notification_observer.h"
+#include "content/common/notification_registrar.h"
 #include "ui/base/models/menu_model.h"
 #include "views/controls/menu/menu_delegate.h"
 
@@ -26,7 +28,8 @@
 
 // WrenchMenu adapts the WrenchMenuModel to view's menu related classes.
 class WrenchMenu : public views::MenuDelegate,
-                   public BaseBookmarkModelObserver {
+                   public BaseBookmarkModelObserver,
+                   public NotificationObserver {
  public:
   explicit WrenchMenu(Browser* browser);
   virtual ~WrenchMenu();
@@ -71,6 +74,11 @@
   // BaseBookmarkModelObserver overrides:
   virtual void BookmarkModelChanged() OVERRIDE;
 
+  // NotificationObserver overrides:
+  virtual void Observe(int type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details) OVERRIDE;
+
  private:
   class CutCopyPasteView;
   class ZoomView;
@@ -134,6 +142,8 @@
   // ID to use for the items representing bookmarks in the bookmark menu.
   int first_bookmark_command_id_;
 
+  NotificationRegistrar registrar_;
+
   DISALLOW_COPY_AND_ASSIGN(WrenchMenu);
 };