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

chrome/browser/ui/cocoa/profiles/avatar_base_controller.h

 // Copyright 2014 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_PROFILES_AVATAR_BASE_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_PROFILES_AVATAR_BASE_CONTROLLER_H_
 
 #import <AppKit/AppKit.h>
 
 #import "base/mac/scoped_nsobject.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/ui/browser_window.h"
+#import "chrome/browser/ui/cocoa/has_weak_browser_pointer.h"
 
 @class BaseBubbleController;
 class Browser;
 class ProfileInfoUpdateObserver;
 
 // This view controller manages the button that sits in the top of the
 // window frame when using multi-profiles, and shows information about the
 // current profile. Clicking the button will open the profile menu.
-@interface AvatarBaseController : NSViewController {
+@interface AvatarBaseController : NSViewController<HasWeakBrowserPointer> {
  @protected
   Browser* browser_;
 
   // The avatar button. Child classes are responsible for implementing it.
   base::scoped_nsobject<NSButton> button_;
 
  @private
   // The menu controller, if the menu is open.
   BaseBubbleController* menuController_;
 
@@ skipping 13 matching lines @@
                    withServiceType:(signin::GAIAServiceType)serviceType;
 
 - (void)closeAvatarBubble;
 @end
 
 @interface AvatarBaseController (ExposedForTesting)
 - (BaseBubbleController*)menuController;
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_PROFILES_AVATAR_BASE_CONTROLLER_H_