[Mac] Implement the avatar menu bubble.

chrome/browser/ui/cocoa/browser/avatar_button.h

Index: chrome/browser/ui/cocoa/browser/avatar_button.h
diff --git a/chrome/browser/ui/cocoa/browser/avatar_button.h b/chrome/browser/ui/cocoa/browser/avatar_button.h
index 25e7e43f7ec0ff0d9c3414c2b0bb5b696144cf9f..dd9dfa8458c6d332b8e3b49c3df49f0c5107ee0d 100644
--- a/chrome/browser/ui/cocoa/browser/avatar_button.h
+++ b/chrome/browser/ui/cocoa/browser/avatar_button.h
@@ -12,8 +12,6 @@
 #include "base/memory/scoped_ptr.h"
 
 class Browser;
-@class MenuController;
-class ProfileMenuModel;
 
 namespace AvatarButtonInternal {
 class Observer;
@@ -30,12 +28,6 @@ class Observer;
   // The button child view of this view.
   scoped_nsobject<NSButton> button_;
 
-  // The cross-platform MenuModel that generates the popup menu.
-  scoped_ptr<ProfileMenuModel> model_;
-
-  // Cocoa bridge that creates the NSMenu from the |model_|.
-  scoped_nsobject<MenuController> menuController_;
-
   // Notification bridge for profile info updates.
   scoped_ptr<AvatarButtonInternal::Observer> observer_;
 }