Update access info when an offline page is being visited

components/offline_pages/offline_page_model.h

 // Copyright 2015 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_OFFLINE_PAGES_OFFLINE_PAGE_MODEL_H_
 #define COMPONENTS_OFFLINE_PAGES_OFFLINE_PAGE_MODEL_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 85 matching lines @@
   class Observer {
    public:
     // Invoked when the model has finished loading.
     virtual void OfflinePageModelLoaded(OfflinePageModel* model) = 0;
 
    protected:
     virtual ~Observer() {}
   };
 
   typedef base::Callback<void(SavePageResult)> SavePageCallback;
+  typedef base::Callback<void(bool)> MarkPageAccessedCallback;
   typedef base::Callback<void(DeletePageResult)> DeletePageCallback;
 
   // All blocking calls/disk access will happen on the provided |task_runner|.
   OfflinePageModel(
       scoped_ptr<OfflinePageMetadataStore> store,
       const scoped_refptr<base::SequencedTaskRunner>& task_runner);
   ~OfflinePageModel() override;
 
   // Starts the OfflinePageModel and registers it as a BookmarkModelObserver.
   // Calling this method is optional, but offline pages will not be deleted
   // when the bookmark is deleted, i.e. due to sync, until this method is
   // called.
   void Start(bookmarks::BookmarkModel* model);
 
   // KeyedService implementation.
   void Shutdown() override;
 
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
   // Attempts to save a page addressed by |url| offline. Requires that the model
   // is loaded.
   void SavePage(const GURL& url,
                 int64 bookmark_id,
                 scoped_ptr<OfflinePageArchiver> archiver,
                 const SavePageCallback& callback);
 
+  // Marks that the offline page related to the passed |bookmark_id| has been
+  // accessed. Its access info, including last access time and access count,
+  // will be updated. Requires that the model is loaded.
+  void MarkPageAccessed(int64 bookmark_id,
+                        const MarkPageAccessedCallback& callback);
+
   // Deletes an offline page related to the passed |bookmark_id|. Requires that
   // the model is loaded.
   void DeletePageByBookmarkId(int64 bookmark_id,
                               const DeletePageCallback& callback);
 
   // Deletes offline pages related to the passed |bookmark_ids|. Requires that
   // the model is loaded.
   void DeletePagesByBookmarkId(const std::vector<int64>& bookmark_ids,
                                const DeletePageCallback& callback);
 
@@ skipping 53 matching lines @@
   void OnDeleteArchiveFilesDone(
       const std::vector<int64>& bookmark_ids,
       const DeletePageCallback& callback,
       const bool* success);
   void OnRemoveOfflinePagesDone(const std::vector<int64>& bookmark_ids,
                                 const DeletePageCallback& callback,
                                 bool success);
   void InformDeletePageDone(const DeletePageCallback& callback,
                             DeletePageResult result);
 
+  void OnUpdateOfflinePageDone(const MarkPageAccessedCallback& callback,
+                               bool success);
+
   // Persistent store for offline page metadata.
   scoped_ptr<OfflinePageMetadataStore> store_;
 
   // The observers.
   base::ObserverList<Observer> observers_;
 
   bool is_loaded_;
 
   // In memory copy of the offline page metadata, keyed by bookmark IDs.
   std::map<int64, OfflinePageItem> offline_pages_;
@@ skipping 10 matching lines @@
       scoped_observer_;
 
   base::WeakPtrFactory<OfflinePageModel> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(OfflinePageModel);
 };
 
 }  // namespace offline_pages
 
 #endif  // COMPONENTS_OFFLINE_PAGES_OFFLINE_PAGE_MODEL_H_