cros: Move IsUserSupervised and IsUserChild off SystemTrayDelegate

ash/session/session_controller.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 ASH_SESSION_SESSION_CONTROLLER_H_
 #define ASH_SESSION_SESSION_CONTROLLER_H_
 
 #include <stdint.h>
 
 #include <vector>
@@ skipping 67 matching lines @@
   // Gets the ash session state.
   session_manager::SessionState GetSessionState() const;
 
   // Gets the user sessions in LRU order with the active session being first.
   const std::vector<mojom::UserSessionPtr>& GetUserSessions() const;
 
   // Convenience helper to gets the user session at a given index. Returns
   // nullptr if no user session is found for the index.
   const mojom::UserSession* GetUserSession(UserIndex index) const;
 
+  // Returns true if the current user is supervised: has legacy supervised
+  // account or kid account.
+  bool IsUserSupervised() const;
+
+  // Returns true if the current user is a child account.
+  bool IsUserChild() const;
+
   // Locks the screen. The locking happens asynchronously.
   void LockScreen();
 
   // Switches to another active user with |account_id| (if that user has
   // already signed in).
   void SwitchActiveUser(const AccountId& account_id);
 
   // Switches the active user to the next or previous user, with the same
   // ordering as user sessions are created.
   void CycleActiveUser(CycleUserDirection direction);
@@ skipping 63 matching lines @@
   bool is_unlocking_ = false;
 
   base::ObserverList<ash::SessionObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(SessionController);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SESSION_SESSION_CONTROLLER_H_