Add CHECK on session start for profile construction

components/session_manager/core/session_manager.h

 // 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.
 
 #ifndef COMPONENTS_SESSION_MANAGER_CORE_SESSION_MANAGER_H_
 #define COMPONENTS_SESSION_MANAGER_CORE_SESSION_MANAGER_H_
 
+#include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/observer_list.h"
 #include "components/session_manager/session_manager_export.h"
 #include "components/session_manager/session_manager_types.h"
 
 class AccountId;
 
 namespace session_manager {
@@ skipping 24 matching lines @@
   bool IsSessionStarted() const;
 
   // Called when browser session is started i.e. after
   // browser_creator.LaunchBrowser(...) was called after user sign in.
   // When user is at the image screen IsUserLoggedIn() will return true
   // but IsSessionStarted() will return false. During the kiosk splash screen,
   // we perform additional initialization after the user is logged in but
   // before the session has been started.
   virtual void SessionStarted();
 
+  // Returns true if the session for the given user was started.
+  bool HasSessionForAccountId(const AccountId& user_account_id) const;
+
   // Convenience wrapps of session state.
   bool IsInSecondaryLoginScreen() const;
   bool IsScreenLocked() const;
   bool IsUserSessionBlocked() const;
 
   void AddObserver(SessionManagerObserver* observer);
   void RemoveObserver(SessionManagerObserver* observer);
 
   SessionState session_state() const { return session_state_; }
   const std::vector<Session>& sessions() const { return sessions_; }
@@ skipping 34 matching lines @@
   std::vector<Session> sessions_;
 
   base::ObserverList<SessionManagerObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(SessionManager);
 };
 
 }  // namespace session_manager
 
 #endif  // COMPONENTS_SESSION_MANAGER_CORE_SESSION_MANAGER_H_