Views: Rebuild wrench menu if error is added or removed

chrome/browser/ui/views/wrench_menu.cc

Index: chrome/browser/ui/views/wrench_menu.cc
===================================================================
--- chrome/browser/ui/views/wrench_menu.cc	(revision 104036)
+++ chrome/browser/ui/views/wrench_menu.cc	(working copy)
@@ -14,6 +14,7 @@
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/views/bookmarks/bookmark_menu_delegate.h"
+#include "chrome/common/chrome_notification_types.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "content/browser/user_metrics.h"
 #include "content/common/content_notification_types.h"
@@ -568,6 +569,8 @@
       selected_index_(0),
       bookmark_menu_(NULL),
       first_bookmark_command_id_(0) {
+  registrar_.Add(this, chrome::NOTIFICATION_GLOBAL_ERRORS_CHANGED,
+                 Source<Profile>(browser_->profile()));
 }
 
 WrenchMenu::~WrenchMenu() {
@@ -769,6 +772,21 @@
     root_->Cancel();
 }
 
+
+void WrenchMenu::Observe(int type,
+                         const NotificationSource& source,
+                         const NotificationDetails& details) {
+  switch (type) {
+    case chrome::NOTIFICATION_GLOBAL_ERRORS_CHANGED:
+      // A change in the global errors list can add or remove items from the
+      // menu. Close the menu to avoid have a stale menu on-screen.
+      root_->Cancel();
+      break;
+    default:
+      NOTREACHED();
+  }
+}
+
 void WrenchMenu::PopulateMenu(MenuItemView* parent,
                               MenuModel* model,
                               int* next_id) {