Makes the OfflinePageBridge.getAllPages method asynchronous.

components/offline_pages/offline_page_model.cc

 // 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.
 
 #include "components/offline_pages/offline_page_model.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 210 matching lines @@
   // Make a copy of the cached item and update it. The cached item should only
   // be updated upon the successful store operation.
   OfflinePageItem offline_page_item = iter->second;
   offline_page_item.MarkForDeletion();
   store_->AddOrUpdateOfflinePage(
       offline_page_item,
       base::Bind(&OfflinePageModel::OnMarkPageForDeletionDone,
                  weak_ptr_factory_.GetWeakPtr(), offline_page_item, callback));
 }
 
-void OfflinePageModel::DeletePageByOfflineId(
-    int64_t offline_id,
-    const DeletePageCallback& callback) {
-  DCHECK(is_loaded_);
-  std::vector<int64_t> offline_ids_to_delete;
-  offline_ids_to_delete.push_back(offline_id);
-  DeletePagesByOfflineId(offline_ids_to_delete, callback);
-}
-
 void OfflinePageModel::DeletePagesByOfflineId(
     const std::vector<int64_t>& offline_ids,
     const DeletePageCallback& callback) {
   if (!is_loaded_) {
     delayed_tasks_.push_back(
         base::Bind(&OfflinePageModel::DoDeletePagesByOfflineId,
                    weak_ptr_factory_.GetWeakPtr(), offline_ids, callback));
 
     return;
   }
@@ skipping 538 matching lines @@
           base::Bind(&OfflinePageModel::MarkPageForDeletion,
                      weak_ptr_factory_.GetWeakPtr(), offline_ids[i], callback));
     }
     return;
   }
   for (const auto& id : offline_ids) {
     MarkPageForDeletion(id, callback);
   }
 }
 }  // namespace offline_pages