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

components/offline_pages/background/request_coordinator_event_logger.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_REQUEST_COORDINATOR_EVENT_LOGGER_H_
-#define COMPONENTS_OFFLINE_PAGES_BACKGROUND_REQUEST_COORDINATOR_EVENT_LOGGER_H_
-
-#include <stdint.h>
-#include <string>
-
-#include "components/offline_pages/background/offliner.h"
-#include "components/offline_pages/background/request_notifier.h"
-#include "components/offline_pages/background/request_queue_results.h"
-#include "components/offline_pages/offline_event_logger.h"
-
-namespace offline_pages {
-
-class RequestCoordinatorEventLogger : public OfflineEventLogger {
- public:
-  // Records the result of a background task attempt for SavePageRequest
-  // |request_id|.
-  void RecordOfflinerResult(const std::string& name_space,
-                            Offliner::RequestStatus new_status,
-                            int64_t request_id);
-
-  // Records the reason for dropped SavePageRequest |request_id|.
-  void RecordDroppedSavePageRequest(
-      const std::string& name_space,
-      RequestNotifier::BackgroundSavePageResult result,
-      int64_t request_id);
-
-  void RecordUpdateRequestFailed(const std::string& name_space,
-                                 UpdateRequestResult result);
-};
-
-}  // namespace offline_pages
-
-#endif  // COMPONENTS_OFFLINE_PAGES_BACKGROUND_REQUEST_COORDINATOR_EVENT_LOGGER_H_