Move all components/offline_pages/ files into component/offline_pages/core

components/offline_pages/background/add_request_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_ADD_REQUEST_TASK_H_
-#define COMPONENTS_OFFLINE_PAGES_BACKGROUND_ADD_REQUEST_TASK_H_
-
-#include <memory>
-#include <vector>
-
-#include "base/memory/weak_ptr.h"
-#include "components/offline_pages/background/request_queue_store.h"
-#include "components/offline_pages/core/task.h"
-
-namespace offline_pages {
-
-class AddRequestTask : public Task {
- public:
-  AddRequestTask(RequestQueueStore* store,
-                 const SavePageRequest& request,
-                 const RequestQueueStore::AddCallback& callback);
-  ~AddRequestTask() override;
-
-  // Task implementation:
-  void Run() override;
-
- private:
-  // Step 1: Add the request to the store.
-  void AddRequest();
-  // Step 2: Calls the callback with result, completes the task.
-  void CompleteWithResult(ItemActionStatus status);
-
-  // Store from which requests will be read.
-  RequestQueueStore* store_;
-  // Request to be added.
-  SavePageRequest request_;
-  // Callback used to return the read results.
-  RequestQueueStore::AddCallback callback_;
-
-  base::WeakPtrFactory<AddRequestTask> weak_ptr_factory_;
-  DISALLOW_COPY_AND_ASSIGN(AddRequestTask);
-};
-
-}  // namespace offline_pages
-
-#endif  // COMPONENTS_OFFLINE_PAGES_BACKGROUND_ADD_REQUEST_TASK_H_