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

components/offline_pages/core/offline_page_metadata_store.cc

Index: components/offline_pages/core/offline_page_metadata_store.cc
diff --git a/components/offline_pages/offline_page_metadata_store.cc b/components/offline_pages/core/offline_page_metadata_store.cc
similarity index 60%
rename from components/offline_pages/offline_page_metadata_store.cc
rename to components/offline_pages/core/offline_page_metadata_store.cc
index 24af10b37a3e52a74b80bed2216cbcd795c4e641..586b4f58a0cd3842f2a2de51caca74a8de717367 100644
--- a/components/offline_pages/offline_page_metadata_store.cc
+++ b/components/offline_pages/core/offline_page_metadata_store.cc
@@ -2,16 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "components/offline_pages/offline_page_metadata_store.h"
+#include "components/offline_pages/core/offline_page_metadata_store.h"
 
 namespace offline_pages {
 
 template class StoreUpdateResult<OfflinePageItem>;
 
-OfflinePageMetadataStore::OfflinePageMetadataStore() {
-}
+OfflinePageMetadataStore::OfflinePageMetadataStore() {}
 
-OfflinePageMetadataStore::~OfflinePageMetadataStore() {
-}
+OfflinePageMetadataStore::~OfflinePageMetadataStore() {}
 
 }  // namespace offline_pages