Add a sign-in promo message to the Other Devices menu.

chrome/browser/ui/webui/ntp/foreign_session_handler.h

 // Copyright (c) 2011 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_NTP_FOREIGN_SESSION_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_NTP_FOREIGN_SESSION_HANDLER_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 19 matching lines @@
   void Init();
 
   // Determines how ForeignSessionHandler will interact with the new tab page.
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   // Returns a pointer to the current session model associator or NULL.
   SessionModelAssociator* GetModelAssociator();
 
+  // Returns true if tab sync is enabled for this profile, otherwise false.
+  bool IsTabSyncEnabled();
+
   // Determines which session is to be opened, and then calls
   // OpenForeignSession, to begin the process of opening a new browser window.
   // This is a javascript callback handler.
   void HandleOpenForeignSession(const ListValue* args);
 
   // Determines whether foreign sessions should be obtained from the sync model.
   // This is a javascript callback handler, and it is also called when the sync
   // model has changed and the new tab page needs to reflect the changes.
   void HandleGetForeignSessions(const ListValue* args);
 
   // Helper methods to create JSON compatible objects from Session objects.
   bool SessionTabToValue(const SessionTab& tab, DictionaryValue* dictionary);
   bool SessionWindowToValue(const SessionWindow& window,
                             DictionaryValue* dictionary);
 
   // The Registrar used to register ForeignSessionHandler for notifications.
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(ForeignSessionHandler);
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_UI_WEBUI_NTP_FOREIGN_SESSION_HANDLER_H_