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

components/offline_pages/offline_page_metadata_store.cc

Index: components/offline_pages/offline_page_metadata_store.cc
diff --git a/components/offline_pages/offline_page_metadata_store.cc b/components/offline_pages/offline_page_metadata_store.cc
deleted file mode 100644
index 24af10b37a3e52a74b80bed2216cbcd795c4e641..0000000000000000000000000000000000000000
--- a/components/offline_pages/offline_page_metadata_store.cc
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright 2015 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/offline_page_metadata_store.h"
-
-namespace offline_pages {
-
-template class StoreUpdateResult<OfflinePageItem>;
-
-OfflinePageMetadataStore::OfflinePageMetadataStore() {
-}
-
-OfflinePageMetadataStore::~OfflinePageMetadataStore() {
-}
-
-}  // namespace offline_pages