mac: Stop using __weak.

chrome/browser/ui/cocoa/profiles/profile_menu_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_PROFILE_MENU_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_PROFILES_PROFILE_MENU_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 11 matching lines @@
 @interface ProfileMenuController : NSObject {
  @private
   // The controller for the profile submenu.
   scoped_ptr<AvatarMenu> avatarMenu_;
 
   // An observer to be notified when the active browser changes and when the
   // menu model changes.
   scoped_ptr<ProfileMenuControllerInternal::Observer> observer_;
 
   // The main menu item to which the profile menu is attached.
-  __weak NSMenuItem* mainMenuItem_;
+  NSMenuItem* mainMenuItem_;  // weak
 }
 
 // Designated initializer.
 - (id)initWithMainMenuItem:(NSMenuItem*)item;
 
 // Actions for the menu items.
 - (IBAction)switchToProfileFromMenu:(id)sender;
 - (IBAction)switchToProfileFromDock:(id)sender;
 - (IBAction)editProfile:(id)sender;
 - (IBAction)newProfile:(id)sender;
 
 // If profiles are enabled and there is more than one profile, this inserts
 // profile menu items into the specified menu at the specified offset and
 // returns YES. Otherwise, this returns NO and does not modify the menu.
 - (BOOL)insertItemsIntoMenu:(NSMenu*)menu
                    atOffset:(NSInteger)offset
                    fromDock:(BOOL)dock;
 
 @end
 
 @interface ProfileMenuController (PrivateExposedForTesting)
 - (NSMenu*)menu;
 - (void)rebuildMenu;
 - (NSMenuItem*)createItemWithTitle:(NSString*)title action:(SEL)sel;
 - (void)activeBrowserChangedTo:(Browser*)browser;
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_PROFILES_PROFILE_MENU_CONTROLLER_H_