Fix crash when notification disappears under popup menu.

chrome/browser/ui/cocoa/notifications/balloon_controller.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_NOTIFICATIONS_BALLOON_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_NOTIFICATIONS_BALLOON_CONTROLLER_H_
 #pragma once
 
 #import <Cocoa/Cocoa.h>
 
@@ skipping 34 matching lines @@
   // The origin label.
   IBOutlet NSTextField* originLabel_;
 
   // The options menu that appears when "options" is pressed.
   IBOutlet HoverImageButton* optionsButton_;
   scoped_ptr<NotificationOptionsMenuModel> menuModel_;
   scoped_nsobject<MenuController> menuController_;
 
   // The host for the renderer of the HTML contents.
   scoped_ptr<BalloonViewHost> htmlContents_;
+
+  // Variables to delay close requested by script while showing modal menu.
+  BOOL optionMenuIsActive_;
+  BOOL delayedClose_;
 }
 
 // Initialize with a balloon object containing the notification data.
 - (id)initWithBalloon:(Balloon*)balloon;
 
 // Callback function for the close button.
 - (IBAction)closeButtonPressed:(id)sender;
 
 // Callback function for the options button.
 - (IBAction)optionsButtonPressed:(id)sender;
@@ skipping 18 matching lines @@
 
 // The BalloonHost
 - (BalloonViewHost*)getHost;
 @end
 
 @interface BalloonController (UnitTesting)
 - (void)initializeHost;
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_NOTIFICATIONS_BALLOON_CONTROLLER_H_