New avatar button: Update when the supervised user ID changes.

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

 // 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.
 
 #import "chrome/browser/ui/cocoa/profiles/avatar_base_controller.h"
 
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/profile_info_cache_observer.h"
 #include "chrome/browser/profiles/profile_avatar_icon_util.h"
@@ skipping 73 matching lines @@
       const base::FilePath& profile_path,
       const base::string16& old_profile_name) OVERRIDE {
     [avatarController_ updateAvatarButtonAndLayoutParent:YES];
   }
 
   virtual void OnProfileAvatarChanged(
       const base::FilePath& profile_path) OVERRIDE {
     [avatarController_ updateAvatarButtonAndLayoutParent:YES];
   }
 
+  virtual void OnProfileSupervisedUserIdChanged(
+      const base::FilePath& profile_path) OVERRIDE {
+    [avatarController_ updateAvatarButtonAndLayoutParent:YES];
+  }
+
   // SigninErrorController::Observer:
   virtual void OnErrorChanged() OVERRIDE {
     SigninErrorController* errorController =
         profiles::GetSigninErrorController(profile_);
     if (errorController)
       [avatarController_ updateErrorStatus:errorController->HasError()];
   }
 
  private:
   Profile* profile_;
@@ skipping 99 matching lines @@
 }
 
 - (void)updateErrorStatus:(BOOL)hasError {
 }
 
 - (BaseBubbleController*)menuController {
   return menuController_;
 }
 
 @end