[Offline pages] Add MarkAttemptAbortedTask to Request Queue

components/offline_pages/background/mark_attempt_started_task.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_BACKGROUND_MARK_ATTEMPT_STARTED_TASK_H_
 #define COMPONENTS_OFFLINE_PAGES_BACKGROUND_MARK_ATTEMPT_STARTED_TASK_H_
 
 #include <stdint.h>
 
-#include <memory>
-#include <unordered_set>
-#include <vector>
-
-#include "base/memory/weak_ptr.h"
 #include "components/offline_pages/background/request_queue_store.h"
-#include "components/offline_pages/background/save_page_request.h"
+#include "components/offline_pages/background/update_request_task.h"
 #include "components/offline_pages/core/task.h"
 
 namespace offline_pages {
 
-class MarkAttemptStartedTask : public Task {
+class MarkAttemptStartedTask : public UpdateRequestTask {
  public:
   MarkAttemptStartedTask(RequestQueueStore* store,
                          int64_t request_id,
                          const RequestQueueStore::UpdateCallback& callback);
   ~MarkAttemptStartedTask() override;
 
-  // TaskQueue::Task implementation.
-  void Run() override;
-
- private:
-  // Step 1. Reading the requests.
-  void ReadRequest();
-  // Step 2. Verifies item exists, marks started and saves.
-  void MarkAttemptStarted(std::unique_ptr<UpdateRequestsResult> result);
-  // Step 3. Completes once update is done.
-  void CompleteWithResult(std::unique_ptr<UpdateRequestsResult> result);
-
-  // Store that this task updates. Not owned.
-  RequestQueueStore* store_;
-  // Request ID of the request to be started.
-  int64_t request_id_;
-  // Callback to complete the task.
-  RequestQueueStore::UpdateCallback callback_;
-
-  base::WeakPtrFactory<MarkAttemptStartedTask> weak_ptr_factory_;
-  DISALLOW_COPY_AND_ASSIGN(MarkAttemptStartedTask);
+ protected:
+  // UpdateRequestTask implementation:
+  void UpdateRequestImpl(std::unique_ptr<UpdateRequestsResult> result) override;
 };
 
 }  // namespace offline_pages
 
 #endif  // COMPONENTS_OFFLINE_PAGES_BACKGROUND_MARK_ATTEMPT_STARTED_TASK_H_