[Mac] Inform reference counted objects that hold a weak Browser* when the Browser is being destroye…

chrome/browser/ui/cocoa/wrench_menu/wrench_menu_controller.h

 // Copyright (c) 2012 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_WRENCH_MENU_WRENCH_MENU_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_WRENCH_MENU_WRENCH_MENU_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #import "base/mac/scoped_nsobject.h"
@@ skipping 59 matching lines @@
   // This will only be present if the extension action redesign switch is on.
   base::scoped_nsobject<BrowserActionsController> browserActionsController_;
 
   // The menu item containing the browser actions overflow container.
   NSMenuItem* browserActionsMenuItem_;
 }
 
 // Designated initializer.
 - (id)initWithBrowser:(Browser*)browser;
 
+// Called by BrowserWindowController when the Browser is being destroyed.
+- (void)browserWillBeDestroyed;
+
 // Used to dispatch commands from the Wrench menu. The custom items within the
 // menu cannot be hooked up directly to First Responder because the window in
 // which the controls reside is not the BrowserWindowController, but a
 // NSCarbonMenuWindow; this screws up the typical |-commandDispatch:| system.
 - (IBAction)dispatchWrenchMenuCommand:(id)sender;
 
 // Returns the weak reference to the WrenchMenuModel.
 - (WrenchMenuModel*)wrenchMenuModel;
 
 // Creates a RecentTabsMenuModelDelegate instance which will take care of
@@ skipping 40 matching lines @@
     IBOutlet MenuTrackedRootView* toolbarActionsOverflowItem;
 @property(assign, nonatomic)
     IBOutlet BrowserActionsContainerView* overflowActionsContainerView;
 
 - (id)initWithController:(WrenchMenuController*)controller;
 - (IBAction)dispatchWrenchMenuCommand:(id)sender;
 
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_WRENCH_MENU_WRENCH_MENU_CONTROLLER_H_