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

components/offline_pages/background/cleanup_task_factory.cc

-// 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.
-
-#include "components/offline_pages/background/cleanup_task_factory.h"
-
-#include "components/offline_pages/background/offliner_policy.h"
-#include "components/offline_pages/background/request_coordinator_event_logger.h"
-#include "components/offline_pages/background/request_notifier.h"
-
-namespace offline_pages {
-
-// Capture the common parameters that we will need to make a pick task,
-// and use them when making tasks.  Create this once each session, and
-// use it to build a picker task when needed.
-CleanupTaskFactory::CleanupTaskFactory(
-    OfflinerPolicy* policy,
-    RequestNotifier* notifier,
-    RequestCoordinatorEventLogger* event_logger)
-    : policy_(policy), notifier_(notifier), event_logger_(event_logger) {
-  DCHECK(policy);
-  DCHECK(notifier);
-  DCHECK(event_logger);
-}
-
-CleanupTaskFactory::~CleanupTaskFactory() {}
-
-std::unique_ptr<CleanupTask> CleanupTaskFactory::CreateCleanupTask(
-    RequestQueueStore* store) {
-  std::unique_ptr<CleanupTask> task(
-      new CleanupTask(store, policy_, notifier_, event_logger_));
-  return task;
-}
-
-}  // namespace offline_pages