Introduce incognito preference settings.

chrome/browser/ui/cocoa/extensions/extension_action_context_menu.h

 // Copyright (c) 2010 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.
 
 #ifndef CHROME_BROWSER_UI_COCOA_EXTENSIONS_EXTENSION_ACTION_CONTEXT_MENU_H_
 #define CHROME_BROWSER_UI_COCOA_EXTENSIONS_EXTENSION_ACTION_CONTEXT_MENU_H_
 #pragma once
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/scoped_ptr.h"
 #include "base/scoped_nsobject.h"
 
 class AsyncUninstaller;
 class DevmodeObserver;
 class Extension;
 class ExtensionAction;
 class NotificationRegistrar;
 class Profile;
 
 namespace extension_action_context_menu {
 
 class DevmodeObserver;
+class ProfileObserverBridge;
 
 }  // namespace extension_action_context_menu
 
 // A context menu used by any extension UI components that require it.
 @interface ExtensionActionContextMenu : NSMenu {
  @private
   // The extension that this menu belongs to. Weak.
   const Extension* extension_;
 
   // The extension action this menu belongs to. Weak.
   ExtensionAction* action_;
 
   // The browser profile of the window that contains this extension. Weak.
   Profile* profile_;
 
   // The inspector menu item.  Need to keep this around to add and remove it.
   scoped_nsobject<NSMenuItem> inspectorItem_;
 
   // The observer used to listen for pref changed notifications.
   scoped_ptr<extension_action_context_menu::DevmodeObserver> observer_;
 
+  // The observer used to reset |observer_| when the profile is destroyed.
+  scoped_ptr<extension_action_context_menu::ProfileObserverBridge>
+      profile_observer_;
+
   // Used to load the extension icon asynchronously on the I/O thread then show
   // the uninstall confirmation dialog.
   scoped_ptr<AsyncUninstaller> uninstaller_;
 }
 
 // Initializes and returns a context menu for the given extension and profile.
 - (id)initWithExtension:(const Extension*)extension
                 profile:(Profile*)profile
         extensionAction:(ExtensionAction*)action;
 
 // Show or hide the inspector menu item.
 - (void)updateInspectorItem;
 
+// Notifies the ExtensionActionContextMenu that the profile is is being
+// destroyed.
+- (void)invalidateProfile;
+
 @end
 
 typedef ExtensionActionContextMenu ExtensionActionContextMenuMac;
 
 #endif  // CHROME_BROWSER_UI_COCOA_EXTENSIONS_EXTENSION_ACTION_CONTEXT_MENU_H_