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

components/offline_pages/background/get_requests_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_GET_REQUESTS_TASK_H_
-#define COMPONENTS_OFFLINE_PAGES_BACKGROUND_GET_REQUESTS_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 GetRequestsTask : public Task {
- public:
-  GetRequestsTask(RequestQueueStore* store,
-                  const RequestQueueStore::GetRequestsCallback& callback);
-  ~GetRequestsTask() override;
-
-  // Task implementation:
-  void Run() override;
-
- private:
-  // Step 1: Read the requests from he store.
-  void ReadRequest();
-  // Step 2: Calls the callback with result, completes the task.
-  void CompleteWithResult(
-      bool success,
-      std::vector<std::unique_ptr<SavePageRequest>> requests);
-
-  // Store from which requests will be read.
-  RequestQueueStore* store_;
-  // Callback used to return the read results.
-  RequestQueueStore::GetRequestsCallback callback_;
-
-  base::WeakPtrFactory<GetRequestsTask> weak_ptr_factory_;
-  DISALLOW_COPY_AND_ASSIGN(GetRequestsTask);
-};
-
-}  // namespace offline_pages
-
-#endif  // COMPONENTS_OFFLINE_PAGES_BACKGROUND_GET_REQUESTS_TASK_H_