[Mac] Retain a reference within a scoped_nsobject of a Page Action's context menu.

chrome/browser/cocoa/location_bar/page_action_decoration.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_COCOA_LOCATION_BAR_PAGE_ACTION_DECORATION_H_
 #define CHROME_BROWSER_COCOA_LOCATION_BAR_PAGE_ACTION_DECORATION_H_
 #pragma once
 
 #import "chrome/browser/cocoa/location_bar/image_decoration.h"
 
 #include "chrome/browser/extensions/image_loading_tracker.h"
 #include "googleurl/src/gurl.h"
 
 class ExtensionAction;
+@class ExtensionActionContextMenu;
 class LocationBarViewMac;
 class Profile;
 class TabContents;
 
 // PageActionDecoration is used to display the icon for a given Page
 // Action and notify the extension when the icon is clicked.
 
 class PageActionDecoration : public ImageDecoration,
                              public ImageLoadingTracker::Observer,
                              public NotificationObserver {
@@ skipping 69 matching lines @@
 
   // The tab id we are currently showing the icon for.
   int current_tab_id_;
 
   // The URL we are currently showing the icon for.
   GURL current_url_;
 
   // The string to show for a tooltip.
   scoped_nsobject<NSString> tooltip_;
 
+  // The context menu for the Page Action.
+  scoped_nsobject<ExtensionActionContextMenu> menu_;
+
   // This is used for post-install visual feedback. The page_action
   // icon is briefly shown even if it hasn't been enabled by its
   // extension.
   bool preview_enabled_;
 
   // Used to register for notifications received by
   // NotificationObserver.
   NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(PageActionDecoration);
 };
 
 #endif  // CHROME_BROWSER_COCOA_LOCATION_BAR_PAGE_ACTION_DECORATION_H_