MD User Manager: Supervised user logic should be inside ENABLE_SUPERVISED_USERS flag

chrome/browser/ui/webui/signin/signin_supervised_user_import_handler.h

 // Copyright 2016 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_WEBUI_SIGNIN_SIGNIN_SUPERVISED_USER_IMPORT_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_SIGNIN_SIGNIN_SUPERVISED_USER_IMPORT_HANDLER_H_
 
 #include <string>
 
 #include "base/callback_list.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/scoped_observer.h"
 #include "base/strings/string16.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/supervised_user/supervised_users.h"
 #include "content/public/browser/web_ui_message_handler.h"
 
 namespace base {
 class DictionaryValue;
 class ListValue;
 }
 
 // Handler for the 'import existing supervised user' dialog.
 class SigninSupervisedUserImportHandler : public content::WebUIMessageHandler {
  public:
@@ skipping 61 matching lines @@
   std::string webui_callback_id_;
 
   Profile* last_used_profile;
 
   base::WeakPtrFactory<SigninSupervisedUserImportHandler> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SigninSupervisedUserImportHandler);
 };
 
 #endif // CHROME_BROWSER_UI_WEBUI_SIGNIN_SIGNIN_SUPERVISED_USER_IMPORT_HANDLER_H_