[Offline Pages] Delete associated page along with bookmark.

components/offline_pages/offline_page_model_impl.h

 // Copyright 2016 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_IMPL_H_
 #define COMPONENTS_OFFLINE_PAGES_OFFLINE_PAGE_MODEL_IMPL_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 21 matching lines @@
 #include "components/offline_pages/offline_page_types.h"
 
 class GURL;
 namespace base {
 class SequencedTaskRunner;
 class Time;
 class TimeDelta;
 class TimeTicks;
 }  // namespace base
 
+namespace bookmarks {
+class BookmarkNode;
+}  // namespace bookmarks
+
 namespace offline_pages {
 
 static const int64_t kInvalidOfflineId = 0;
 
 struct ClientId;
 struct OfflinePageItem;
 
 class ArchiveManager;
 class ClientPolicyController;
+class OfflinePageBookmarkObserver;
 class OfflinePageMetadataStore;
 class OfflinePageStorageManager;
 
 // Implementation of service for saving pages offline, storing the offline
 // copy and metadata, and retrieving them upon request.
 class OfflinePageModelImpl : public OfflinePageModel, public KeyedService {
  public:
   // All blocking calls/disk access will happen on the provided |task_runner|.
   OfflinePageModelImpl(
       std::unique_ptr<OfflinePageMetadataStore> store,
@@ skipping 42 matching lines @@
       const MultipleOfflinePageItemCallback& callback) override;
   void GetBestPageForOnlineURL(
       const GURL& online_url,
       const SingleOfflinePageItemCallback callback) override;
   const OfflinePageItem* MaybeGetBestPageForOnlineURL(
       const GURL& online_url) const override;
   void CheckMetadataConsistency() override;
   void ExpirePages(const std::vector<int64_t>& offline_ids,
                    const base::Time& expiration_time,
                    const base::Callback<void(bool)>& callback) override;
+  void ExpireRemovedBookmarkPage(const bookmarks::BookmarkNode* node) override;
+  OfflinePageBookmarkObserver* GetBookmarkObserver() override;
   ClientPolicyController* GetPolicyController() override;
 
   // Methods for testing only:
   OfflinePageMetadataStore* GetStoreForTesting();
 
   OfflinePageStorageManager* GetStorageManager();
 
   bool is_loaded() const override;
 
   OfflineEventLogger* GetLogger() override;
@@ skipping 134 matching lines @@
   void ClearStorageIfNeeded(
       const OfflinePageStorageManager::ClearStorageCallback& callback);
 
   // Callback completing storage clearing.
   void OnStorageCleared(size_t expired_page_count,
                         OfflinePageStorageManager::ClearStorageResult result);
 
   // Post task to clear storage.
   void PostClearStorageIfNeededTask();
 
+  // Expire associate pages when a bookmark gets deleted.
+  void DoExpireRemovedBookmarkPages(const std::vector<int64_t>& offline_ids);
+  void OnRemovedBookmarkPagesExpired(bool result);
+
   void RunWhenLoaded(const base::Closure& job);
 
   // Persistent store for offline page metadata.
   std::unique_ptr<OfflinePageMetadataStore> store_;
 
   // Location where all of the archive files will be stored.
   base::FilePath archives_dir_;
 
   // The observers.
   base::ObserverList<Observer> observers_;
@@ skipping 12 matching lines @@
   // Controller of the client policies.
   std::unique_ptr<ClientPolicyController> policy_controller_;
 
   // Manager for the storage consumed by archives and responsible for
   // automatic page clearing.
   std::unique_ptr<OfflinePageStorageManager> storage_manager_;
 
   // Manager for the offline archive files and directory.
   std::unique_ptr<ArchiveManager> archive_manager_;
 
+  // Observer listening events from bookmark model.
+  std::unique_ptr<OfflinePageBookmarkObserver> bookmark_observer_;
+
   // Logger to facilitate recording of events.
   OfflinePageModelEventLogger offline_event_logger_;
 
   base::WeakPtrFactory<OfflinePageModelImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(OfflinePageModelImpl);
 };
 
 }  // namespace offline_pages
 
 #endif  // COMPONENTS_OFFLINE_PAGES_OFFLINE_PAGE_MODEL_IMPL_H_