[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 256 matching lines @@
   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_;
 
   bool is_loaded_;
 
-  // In memory copy of the offline page metadata, keyed by bookmark IDs.
+  // In memory copy of the offline page metadata, keyed by offline IDs.
   std::map<int64_t, OfflinePageItem> offline_pages_;
 
   // Pending archivers owned by this model.
   PendingArchivers pending_archivers_;
 
   // Delayed tasks that should be invoked after the loading is done.
   std::vector<base::Closure> delayed_tasks_;
 
   // 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_;
 
   // 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_