1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_SESSIONS_SESSION_ID_H_ 6 #define CHROME_BROWSER_SESSIONS_SESSION_ID_H_ 7 #pragma once 8 9 #include "base/basictypes.h" 10 11 class NavigationController; 12 class SessionService; 13 namespace browser_sync { 14 class SessionModelAssociator; 15 } 16 17 // Uniquely identifies a tab or window for the duration of a session. 18 class SessionID { 19 public: 20 typedef int32 id_type; 21 22 SessionID(); ~SessionID()23 ~SessionID() {} 24 25 // Returns the underlying id. id()26 id_type id() const { return id_; } 27 28 private: 29 friend class NavigationController; 30 friend class SessionService; 31 friend class browser_sync::SessionModelAssociator; 32 SessionID(id_type id)33 explicit SessionID(id_type id) : id_(id) {} 34 35 // Resets the id. This is used when restoring a session set_id(id_type id)36 void set_id(id_type id) { id_ = id; } 37 38 id_type id_; 39 }; 40 41 #endif // CHROME_BROWSER_SESSIONS_SESSION_ID_H_ 42