[Offline pages] Add MarkAttemptAbortedTask to Request Queue

components/offline_pages/background/mark_attempt_aborted_task.h

Index: components/offline_pages/background/mark_attempt_aborted_task.h
diff --git a/components/offline_pages/background/mark_attempt_aborted_task.h b/components/offline_pages/background/mark_attempt_aborted_task.h
new file mode 100644
index 0000000000000000000000000000000000000000..80d6367d5c15127325b42adabba5b3a9beb1c053
--- /dev/null
+++ b/components/offline_pages/background/mark_attempt_aborted_task.h
@@ -0,0 +1,30 @@
+// 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_ABORTED_TASK_H_
+#define COMPONENTS_OFFLINE_PAGES_BACKGROUND_MARK_ATTEMPT_ABORTED_TASK_H_
+
+#include <stdint.h>
+
+#include "components/offline_pages/background/request_queue_store.h"
+#include "components/offline_pages/background/update_request_task.h"
+#include "components/offline_pages/core/task.h"
+
+namespace offline_pages {
+
+class MarkAttemptAbortedTask : public UpdateRequestTask {
+ public:
+  MarkAttemptAbortedTask(RequestQueueStore* store,
+                         int64_t request_id,
+                         const RequestQueueStore::UpdateCallback& callback);
+  ~MarkAttemptAbortedTask() override;
+
+ protected:
+  // UpdateRequestTask implementation:
+  void UpdateRequestImpl(std::unique_ptr<UpdateRequestsResult> result) override;
+};
+
+}  // namespace offline_pages
+
+#endif  // COMPONENTS_OFFLINE_PAGES_BACKGROUND_MARK_ATTEMPT_ABORTED_TASK_H_