Handle more browser commands in ash.

chrome/browser/sessions/tab_restore_service.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_SESSIONS_TAB_RESTORE_SERVICE_H_
 #define CHROME_BROWSER_SESSIONS_TAB_RESTORE_SERVICE_H_
 #pragma once
 
 #include <list>
 #include <set>
@@ skipping 162 matching lines @@
   // browser window) of the tab when it was closed will be respected if
   // disposition is UNKNOWN.
   void RestoreEntryById(TabRestoreServiceDelegate* delegate,
                         SessionID::id_type id,
                         WindowOpenDisposition disposition);
 
   // Loads the tabs and previous session. This does nothing if the tabs
   // from the previous session have already been loaded.
   void LoadTabsFromLastSession();
 
+  // Returns true if the tab entries have been loaded.
+  bool IsLoaded() const;
+
   // Max number of entries we'll keep around.
   static const size_t kMaxEntries;
 
   // Creates and add entries to |entries| for each of the windows in |windows|.
   void CreateEntriesFromWindows(std::vector<SessionWindow*>* windows,
                                 std::vector<Entry*>* entries);
 
  protected:
   // ProfileKeyedService:
   virtual void Shutdown() OVERRIDE;
@@ skipping 183 matching lines @@
   // loading LoadStateChanged is invoked, which adds these entries to
   // entries_.
   std::vector<Entry*> staging_entries_;
 
   TimeFactory* time_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TabRestoreService);
 };
 
 #endif  // CHROME_BROWSER_SESSIONS_TAB_RESTORE_SERVICE_H_