Persist offline page info in a navigation entry if needed

components/sessions/core/serialized_navigation_entry.h

 // Copyright 2013 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 COMPONENTS_SESSIONS_CORE_SERIALIZED_NAVIGATION_ENTRY_H_
 #define COMPONENTS_SESSIONS_CORE_SERIALIZED_NAVIGATION_ENTRY_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 104 matching lines @@
   }
 
   std::set<std::string> content_pack_categories() const {
     return content_pack_categories_;
   }
   void set_content_pack_categories(
       const std::set<std::string>& content_pack_categories) {
     content_pack_categories_ = content_pack_categories;
   }
   const std::vector<GURL>& redirect_chain() const { return redirect_chain_; }
+  const std::string& offline_page_info() const { return offline_page_info_; }

[sky, 2016/09/12 15:04:22]

This needs better documentation. What is offline_page_info? What does it
correspond to?

[jianli, 2016/09/12 21:17:46]

Done.

 
  private:
   friend class ContentSerializedNavigationBuilder;
   friend class ContentSerializedNavigationDriver;
   friend class SerializedNavigationEntryTestHelper;
   friend class IOSSerializedNavigationBuilder;
   friend class IOSSerializedNavigationDriver;
 
   // Index in the NavigationController.
   int index_;
 
   // Member variables corresponding to NavigationEntry fields.
   int unique_id_;
   GURL referrer_url_;
   int referrer_policy_;
   GURL virtual_url_;
   base::string16 title_;
   std::string encoded_page_state_;
   ui::PageTransition transition_type_;
   bool has_post_data_;
   int64_t post_id_;
   GURL original_request_url_;
   bool is_overriding_user_agent_;
   base::Time timestamp_;
   base::string16 search_terms_;
   GURL favicon_url_;
   int http_status_code_;
   bool is_restored_;    // Not persisted.
   std::vector<GURL> redirect_chain_;  // Not persisted.
+  std::string offline_page_info_;  // Not synced.
 
   // Additional information.
   BlockedState blocked_state_;
   PasswordState password_state_;
   std::set<std::string> content_pack_categories_;
 };
 
 }  // namespace sessions
 
 #endif  // COMPONENTS_SESSIONS_CORE_SERIALIZED_NAVIGATION_ENTRY_H_