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

components/offline_pages/offline_page_model_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_OFFLINE_PAGE_MODEL_EVENT_LOGGER_H_
-#define COMPONENTS_OFFLINE_PAGES_OFFLINE_PAGE_MODEL_EVENT_LOGGER_H_
-
-#include "components/offline_pages/offline_event_logger.h"
-
-namespace offline_pages {
-
-class OfflinePageModelEventLogger : public OfflineEventLogger {
- public:
-  // Records that a page has been saved for |name_space| with |url|
-  // and |offline_id|.
-  void RecordPageSaved(const std::string& name_space,
-                       const std::string& url,
-                       const std::string& offline_id);
-
-  // Records that a page with |offline_id| has been deleted.
-  void RecordPageDeleted(const std::string& offline_id);
-
-  // Records that a page with |offline_id| has been expired.
-  void RecordPageExpired(const std::string& offline_id);
-
-  // Records that the offline store has been cleared.
-  void RecordStoreCleared();
-
-  // Records that there was an error when clearing the offline store.
-  void RecordStoreClearError();
-
-  // Records that there was an error when reloading the offline store.
-  void RecordStoreReloadError();
-};
-
-}  // namespace offline_pages
-
-#endif  // COMPONENTS_OFFLINE_PAGES_OFFLINE_PAGE_MODEL_EVENT_LOGGER_H_