Don't allow hotkeys to activate un-activatable menu items.

chrome/browser/gtk/menu_gtk.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/gtk/menu_gtk.h"
 
 #include "base/gfx/gtk_util.h"
 #include "base/logging.h"
 #include "base/string_util.h"
 #include "chrome/common/l10n_util.h"
@@ skipping 172 matching lines @@
 }
 
 // static
 void MenuGtk::OnMenuItemActivated(GtkMenuItem* menuitem, MenuGtk* menu) {
   // We receive activation messages when highlighting a menu that has a
   // submenu. Ignore them.
   if (!gtk_menu_item_get_submenu(menuitem)) {
     const MenuCreateMaterial* data =
         reinterpret_cast<const MenuCreateMaterial*>(
             g_object_get_data(G_OBJECT(menuitem), "menu-data"));
-    menu->delegate_->ExecuteCommand(data->id);
+    // The menu item can still be activated by hotkeys even if it is disabled.
+    if (menu->delegate_->IsCommandEnabled(data->id))
+      menu->delegate_->ExecuteCommand(data->id);
   }
 }
 
 // static
 void MenuGtk::OnMenuItemActivatedById(GtkMenuItem* menuitem, MenuGtk* menu) {
   // We receive activation messages when highlighting a menu that has a
   // submenu. Ignore them.
   if (!gtk_menu_item_get_submenu(menuitem)) {
     int id = reinterpret_cast<int>(
         g_object_get_data(G_OBJECT(menuitem), "menu-id"));
-    menu->delegate_->ExecuteCommand(id);
+    // The menu item can still be activated by hotkeys even if it is disabled.
+    if (menu->delegate_->IsCommandEnabled(id))
+      menu->delegate_->ExecuteCommand(id);
   }
 }
 
 // static
 void MenuGtk::MenuPositionFunc(GtkMenu* menu,
                                int* x,
                                int* y,
                                gboolean* push_in,
                                void* void_widget) {
   GtkWidget* widget = GTK_WIDGET(void_widget);
@@ skipping 38 matching lines @@
           widget, menu->delegate_->IsCommandEnabled(data->id));
 
       GtkWidget* submenu = gtk_menu_item_get_submenu(GTK_MENU_ITEM(widget));
       if (submenu) {
         gtk_container_foreach(GTK_CONTAINER(submenu), &SetMenuItemInfo,
                               userdata);
       }
     }
   }
 }