Tell IDB frontend about data loss

content/browser/indexed_db/indexed_db_backing_store.h

Index: content/browser/indexed_db/indexed_db_backing_store.h
diff --git a/content/browser/indexed_db/indexed_db_backing_store.h b/content/browser/indexed_db/indexed_db_backing_store.h
index fef455f667acf005433eca99e863a184642f0c54..01ad875e37382b545e3470e65043d8a99afbea5e 100644
--- a/content/browser/indexed_db/indexed_db_backing_store.h
+++ b/content/browser/indexed_db/indexed_db_backing_store.h
@@ -44,11 +44,13 @@ class CONTENT_EXPORT IndexedDBBackingStore
   static scoped_refptr<IndexedDBBackingStore> Open(
       const string16& database_identifier,
       const base::FilePath& path_base,
-      const string16& file_identifier);
+      const string16& file_identifier,
+      bool* data_loss);
   static scoped_refptr<IndexedDBBackingStore> Open(
       const string16& database_identifier,
       const base::FilePath& path_base,
       const string16& file_identifier,
+      bool* data_loss,
       LevelDBFactory* factory);
   static scoped_refptr<IndexedDBBackingStore> OpenInMemory(
       const string16& identifier);