Support getting offline pages also by original URL

components/offline_pages/offline_page_metadata_store_impl_unittest.cc

Index: components/offline_pages/offline_page_metadata_store_impl_unittest.cc
diff --git a/components/offline_pages/offline_page_metadata_store_impl_unittest.cc b/components/offline_pages/offline_page_metadata_store_impl_unittest.cc
index b62809eefcb1407015821158181f52ece6a69d35..c6950144223b7defe6bd13c2407e97ed50e0cb09 100644
--- a/components/offline_pages/offline_page_metadata_store_impl_unittest.cc
+++ b/components/offline_pages/offline_page_metadata_store_impl_unittest.cc
@@ -221,6 +221,8 @@ void BuildTestStoreWithSchemaFromM55(const base::FilePath& file) {
   ASSERT_TRUE(statement.Run());
   ASSERT_TRUE(connection.DoesTableExist(OFFLINE_PAGES_TABLE_V1));
   ASSERT_TRUE(connection.DoesColumnExist(OFFLINE_PAGES_TABLE_V1, "title"));
+  ASSERT_FALSE(
+      connection.DoesColumnExist(OFFLINE_PAGES_TABLE_V1, "original_url"));
 }
 
 class OfflinePageMetadataStoreFactory {