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

components/offline_pages/core/offline_page_archiver.h

Index: components/offline_pages/core/offline_page_archiver.h
diff --git a/components/offline_pages/offline_page_archiver.h b/components/offline_pages/core/offline_page_archiver.h
similarity index 94%
rename from components/offline_pages/offline_page_archiver.h
rename to components/offline_pages/core/offline_page_archiver.h
index ca605bef35ca7e1e32204aacce12276d2edf9594..c224ef958e4ffeee55ac73d4cb6f59560d785856 100644
--- a/components/offline_pages/offline_page_archiver.h
+++ b/components/offline_pages/core/offline_page_archiver.h
@@ -2,8 +2,8 @@
 // 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_ARCHIVER_H_
-#define COMPONENTS_OFFLINE_PAGES_OFFLINE_PAGE_ARCHIVER_H_
+#ifndef COMPONENTS_OFFLINE_PAGES_CORE_OFFLINE_PAGE_ARCHIVER_H_
+#define COMPONENTS_OFFLINE_PAGES_CORE_OFFLINE_PAGE_ARCHIVER_H_
 
 #include <stdint.h>
 
@@ -78,4 +78,4 @@ class OfflinePageArchiver {
 
 }  // namespace offline_pages
 
-#endif  // COMPONENTS_OFFLINE_PAGES_OFFLINE_PAGE_ARCHIVER_H_
+#endif  // COMPONENTS_OFFLINE_PAGES_CORE_OFFLINE_PAGE_ARCHIVER_H_