Give an app the file entries it had back on restart.

chrome/browser/extensions/extension_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_EXTENSIONS_EXTENSION_SERVICE_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_
 
 #include <list>
 #include <map>
 #include <set>
@@ skipping 773 matching lines @@
   NaClModuleInfoList::iterator FindNaClModule(const GURL& url);
 
   // Performs tasks requested to occur after |extension| loads.
   void DoPostLoadTasks(const extensions::Extension* extension);
 
   // Launches the platform app associated with |extension_host|.
   static void LaunchApplication(extensions::ExtensionHost* extension_host);
 
   // Dispatches a restart event to the platform app associated with
   // |extension_host|.
-  static void RestartApplication(extensions::ExtensionHost* extension_host);
+  static void RestartApplication(
+      std::vector<extensions::app_file_handler_util::SavedFileEntry>
+          file_entries,
+      extensions::ExtensionHost* extension_host);
 
   // Helper to inspect an ExtensionHost after it has been loaded.
   void InspectExtensionHost(extensions::ExtensionHost* host);
 
   // Helper to determine whether we should initially enable an installed
   // (or upgraded) extension.
   bool ShouldEnableOnInstall(const extensions::Extension* extension);
 
   // Helper to determine if an extension is idle, and it should be safe
   // to update the extension.
@@ skipping 107 matching lines @@
 
   // Map of inspector cookies that are detached, waiting for an extension to be
   // reloaded.
   typedef std::map<std::string, std::string> OrphanedDevTools;
   OrphanedDevTools orphaned_dev_tools_;
 
   // Maps extension ids to a bitmask that indicates which events should be
   // dispatched to the extension when it is loaded.
   std::map<std::string, int> on_load_events_;
 
+  // Maps extension ids to vectors of saved file entries that the extension
+  // should be given access to on restart.
+  typedef std::map<std::string,
+      std::vector<extensions::app_file_handler_util::SavedFileEntry> >
+          SavedFileEntryMap;
+  SavedFileEntryMap on_restart_file_entries_;
+
   content::NotificationRegistrar registrar_;
   PrefChangeRegistrar pref_change_registrar_;
 
   // Keeps track of loading and unloading component extensions.
   scoped_ptr<extensions::ComponentLoader> component_loader_;
 
   // Keeps track of menu items added by extensions.
   extensions::MenuManager menu_manager_;
 
   // Flag to make sure event routers are only initialized once.
@@ skipping 49 matching lines @@
 #endif
 
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            InstallAppsWithUnlimtedStorage);
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            InstallAppsAndCheckStorageProtection);
   DISALLOW_COPY_AND_ASSIGN(ExtensionService);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_