Merge 75767 - It's not safe to delete the balloon view during MenuDelegate::S...

chrome/browser/ui/gtk/notifications/balloon_view_gtk.h

 // Copyright (c) 2011 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.
 
 // Draws the view for the balloons.
 
 #ifndef CHROME_BROWSER_UI_GTK_NOTIFICATIONS_BALLOON_VIEW_GTK_H_
 #define CHROME_BROWSER_UI_GTK_NOTIFICATIONS_BALLOON_VIEW_GTK_H_
 #pragma once
 
@@ skipping 45 matching lines @@
 
  private:
   // NotificationObserver interface.
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
   // ui::AnimationDelegate interface.
   virtual void AnimationProgressed(const ui::Animation* animation);
 
-  // Do the delayed close work.
+  // Do the delayed close work.  The balloon and all view components will be
+  // destroyed at this time, so it shouldn't be called while still processing
+  // an event that relies on them.
   void DelayedClose(bool by_user);
 
   // The height of the balloon's shelf.
   // The shelf is where is close button is located.
   int GetShelfHeight() const;
 
   // The width and height that the frame should be.  If the balloon inside
   // changes size, this will not be the same as the actual frame size until
   // RepositionToBalloon() has been called and the animation completes.
   int GetDesiredTotalWidth() const;
@@ skipping 53 matching lines @@
   // Is the menu currently showing?
   bool menu_showing_;
 
   // Is there a pending system-initiated close?
   bool pending_close_;
 
   DISALLOW_COPY_AND_ASSIGN(BalloonViewImpl);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_NOTIFICATIONS_BALLOON_VIEW_GTK_H_