|  | // Copyright 2014 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 CONTENT_RENDERER_HISTORY_SERIALIZATION_H_ | 
|  | #define CONTENT_RENDERER_HISTORY_SERIALIZATION_H_ | 
|  |  | 
|  | #include <memory> | 
|  | #include <string> | 
|  |  | 
|  | #include "content/common/content_export.h" | 
|  |  | 
|  | namespace blink { | 
|  | class WebHistoryItem; | 
|  | } | 
|  |  | 
|  | namespace content { | 
|  | class HistoryEntry; | 
|  | class PageState; | 
|  |  | 
|  | CONTENT_EXPORT PageState HistoryEntryToPageState(HistoryEntry* entry); | 
|  | CONTENT_EXPORT PageState SingleHistoryItemToPageState( | 
|  | const blink::WebHistoryItem& item); | 
|  | CONTENT_EXPORT std::unique_ptr<HistoryEntry> PageStateToHistoryEntry( | 
|  | const PageState& state); | 
|  |  | 
|  | }  // namespace content | 
|  |  | 
|  | #endif  // CONTENT_RENDERER_HISTORY_SERIALIZATION_H_ |