[Offline pages] Removing undoing of deleting offline pages

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 <stdint.h>
 
 #include <map>
@@ skipping 140 matching lines @@
   void SavePage(const GURL& url,
                 const ClientId& client_id,
                 scoped_ptr<OfflinePageArchiver> archiver,
                 const SavePageCallback& callback);
 
   // Marks that the offline page related to the passed |offline_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_t offline_id);
 
-  // Marks that the offline page related to the passed |offline_id| was going
-  // to be deleted. The deletion will occur in a short while. The undo can be
-  // done before this. Requires that the model is loaded.
-  void MarkPageForDeletion(int64_t offline_id,
-                           const DeletePageCallback& callback);
-
   // Deletes an offline page related to the passed |offline_id|.
   void DeletePageByOfflineId(int64_t offline_id,
                              const DeletePageCallback& callback);
 
   // Deletes offline pages related to the passed |offline_ids|.
   void DeletePagesByOfflineId(const std::vector<int64_t>& offline_ids,
                               const DeletePageCallback& callback);
 
-  // Marks pages for deletion. Actual delete is asynchronous.
-  // Works even if the model isn't loaded.
-  void MarkPagesForDeletion(const std::vector<int64_t>& offline_ids,
-                            const DeletePageCallback& callback);
-
   // Wipes out all the data by deleting all saved files and clearing the store.
   void ClearAll(const base::Closure& callback);
 
   // Deletes offline pages matching the URL predicate.
   void DeletePagesByURLPredicate(
       const base::Callback<bool(const GURL&)>& predicate,
       const DeletePageCallback& callback);
 
   // Returns true if there are offline pages in the given |name_space|.  This
   // method is sync, so the result can be wrong depending on implementation
@@ skipping 44 matching lines @@
   // pages. Method is to be called after a page was saved or some pages are
   // deleted. In the latter case |reporting_after_delete| is set to true.
   // Caller is supposed to provide the current |total_space_bytes| on drive
   // where the pages are stored, as well as |free_space_bytes| after the
   // operation was taken. The method will report total size of all pages, and
   // percentage of size of pages as compared to total space and free space.
   void RecordStorageHistograms(int64_t total_space_bytes,
                                int64_t free_space_bytes,
                                bool reporting_after_delete);
 
-  // Undo a deletion of a page.  Pages that are marked for deletion can
-  // be restored prior to when they are actually deleted.
-  void UndoPageDeletion(int64_t offline_id);
-
   // Methods for testing only:
   OfflinePageMetadataStore* GetStoreForTesting();
 
   bool is_loaded() const { return is_loaded_; }
 
  private:
   FRIEND_TEST_ALL_PREFIXES(OfflinePageModelTest, MarkPageForDeletion);
 
   typedef ScopedVector<OfflinePageArchiver> PendingArchivers;
 
@@ skipping 36 matching lines @@
                                 const bool* success);
   void OnRemoveOfflinePagesDone(const std::vector<int64_t>& offline_ids,
                                 const DeletePageCallback& callback,
                                 bool success);
   void InformDeletePageDone(const DeletePageCallback& callback,
                             DeletePageResult result);
 
   void OnMarkPageAccesseDone(const OfflinePageItem& offline_page_item,
                              bool success);
 
-  // Steps for marking an offline page for deletion that can be undone.
-  void OnMarkPageForDeletionDone(const OfflinePageItem& offline_page_item,
-                                 const DeletePageCallback& callback,
-                                 bool success);
-  void FinalizePageDeletion();
-
-  // Steps for undoing an offline page deletion.
-  void OnUndoOfflinePageDone(const OfflinePageItem& offline_page, bool success);
-
   // Callbacks for checking if offline pages are missing archive files.
   void OnFindPagesMissingArchiveFile(
       const std::vector<int64_t>* ids_of_pages_missing_archive_file);
   void OnRemoveOfflinePagesMissingArchiveFileDone(
       const std::vector<std::pair<int64_t, ClientId>>& offline_client_id_pairs,
       OfflinePageModel::DeletePageResult result);
 
   // Steps for clearing all.
   void OnRemoveAllFilesDoneForClearAll(const base::Closure& callback,
                                        DeletePageResult result);
@@ skipping 40 matching lines @@
   std::vector<base::Closure> delayed_tasks_;
 
   base::WeakPtrFactory<OfflinePageModel> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(OfflinePageModel);
 };
 
 }  // namespace offline_pages
 
 #endif  // COMPONENTS_OFFLINE_PAGES_OFFLINE_PAGE_MODEL_H_