[CrOS multi-profiles] Restore user sessions after crash

chrome/browser/chromeos/login/user_manager.h

 // Copyright (c) 2012 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_CHROMEOS_LOGIN_USER_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_H_
 
 #include <string>
 
 #include "chrome/browser/chromeos/login/user.h"
@@ skipping 35 matching lines @@
     virtual ~Observer();
   };
 
   // TODO(nkostylev): Merge with session state refactoring CL.
   class UserSessionStateObserver {
    public:
     // Called right before notifying on user change so that those who rely
     // on user_id hash would be accessing up-to-date value.
     virtual void ActiveUserHashChanged(const std::string& hash) = 0;
 
+    // Called when UserManager finishes restoring user sessions after crash.
+    virtual void PendingUserSessionsRestoreFinished() = 0;
+
    protected:
     virtual ~UserSessionStateObserver();
   };
 
   // Username for stub login when not running on ChromeOS.
   static const char kStubUser[];
 
   // Magic e-mail addresses are bad. They exist here because some code already
   // depends on them and it is hard to figure out what. Any user types added in
   // the future should be identified by a new |UserType|, not a new magic e-mail
@@ skipping 185 matching lines @@
   virtual bool IsLoggedInAsKioskApp() const = 0;
 
   // Returns true if we're logged in as the stub user used for testing on Linux.
   virtual bool IsLoggedInAsStub() const = 0;
 
   // Returns true if we're logged in and browser has been started i.e.
   // browser_creator.LaunchBrowser(...) was called after sign in
   // or restart after crash.
   virtual bool IsSessionStarted() const = 0;
 
+  // Returns true iff browser has been restarted after crash and UserManager
+  // finished restoring user sessions.
+  virtual bool UserSessionsRestored() const = 0;
+
   // Returns merge session status.
   virtual MergeSessionState GetMergeSessionState() const = 0;
 
   // Changes merge session status.
   virtual void SetMergeSessionState(MergeSessionState status) = 0;
 
   // Returns true when the browser has crashed and restarted during the current
   // user's session.
   virtual bool HasBrowserRestarted() const = 0;
 
@@ skipping 85 matching lines @@
   ScopedTestUserManager();
   ~ScopedTestUserManager();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ScopedTestUserManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_H_