Restore sessionStorage when chrome restarts.

chrome/browser/sessions/session_types.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_SESSIONS_SESSION_TYPES_H_
 #define CHROME_BROWSER_SESSIONS_SESSION_TYPES_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
+#include "base/file_path.h"
 #include "base/stl_util.h"
 #include "base/string16.h"
 #include "base/time.h"
 #include "chrome/browser/sessions/session_id.h"
 #include "content/public/common/page_transition_types.h"
 #include "content/public/common/referrer.h"
 #include "googleurl/src/gurl.h"
 #include "ui/base/ui_base_types.h"
 #include "ui/gfx/rect.h"
 
@@ skipping 120 matching lines @@
   bool pinned;
 
   // If non-empty, this tab is an app tab and this is the id of the extension.
   std::string extension_app_id;
 
   // Timestamp for when this tab was last modified.
   base::Time timestamp;
 
   std::vector<TabNavigation> navigations;
 
+  FilePath session_storage_directory;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(SessionTab);
 };
 
 // SessionWindow -------------------------------------------------------------
 
 // Describes a saved window.
 struct SessionWindow {
   SessionWindow();
   ~SessionWindow();
@@ skipping 31 matching lines @@
   std::vector<SessionTab*> tabs;
 
   // Is the window maximized, minimized, or normal?
   ui::WindowShowState show_state;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SessionWindow);
 };
 
 #endif  // CHROME_BROWSER_SESSIONS_SESSION_TYPES_H_