Fix: Prerendering was confusing SessionService to not save sessionStorage.

webkit/dom_storage/dom_storage_session.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 WEBKIT_DOM_STORAGE_DOM_STORAGE_SESSION_H_
 #define WEBKIT_DOM_STORAGE_DOM_STORAGE_SESSION_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 16 matching lines @@
   // Constructs a |DomStorageSession| and assigns |persistent_namespace_id|
   // to it. Allocates a new non-persistent ID.
   DomStorageSession(DomStorageContext* context,
                     const std::string& persistent_namespace_id);
 
   int64 namespace_id() const { return namespace_id_; }
   const std::string& persistent_namespace_id() const {
     return persistent_namespace_id_;
   }
   void SetShouldPersist(bool should_persist);
+  bool should_persist() const;
   bool IsFromContext(DomStorageContext* context);
   DomStorageSession* Clone();
 
   // Constructs a |DomStorageSession| by cloning
   // |namespace_id_to_clone|. Allocates new IDs for it.
   static DomStorageSession* CloneFrom(DomStorageContext* context,
                                       int64 namepace_id_to_clone);
 
  private:
   friend class base::RefCountedThreadSafe<DomStorageSession>;
 
   DomStorageSession(DomStorageContext* context,
                     int64 namespace_id,
                     const std::string& persistent_namespace_id);
   ~DomStorageSession();
 
   scoped_refptr<DomStorageContext> context_;
   int64 namespace_id_;
   std::string persistent_namespace_id_;
   bool should_persist_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(DomStorageSession);
 };
 
 }  // namespace dom_storage
 
 #endif  // WEBKIT_DOM_STORAGE_DOM_STORAGE_SESSION_H_