Tell IDB frontend about data loss

content/browser/in_process_webkit/indexed_db_callbacks.h

Index: content/browser/in_process_webkit/indexed_db_callbacks.h
diff --git a/content/browser/in_process_webkit/indexed_db_callbacks.h b/content/browser/in_process_webkit/indexed_db_callbacks.h
index a9f266a804e2bf671cf689f80a4438be7a62775a..accb5741ed22dad3da306015e9b8c7081372fb2a 100644
--- a/content/browser/in_process_webkit/indexed_db_callbacks.h
+++ b/content/browser/in_process_webkit/indexed_db_callbacks.h
@@ -31,7 +31,8 @@ class IndexedDBCallbacksBase {
                          const IndexedDBDatabaseMetadata& metadata);
   virtual void onUpgradeNeeded(long long old_version,
                                WebIDBDatabaseImpl* database,
-                               const IndexedDBDatabaseMetadata&);
+                               const IndexedDBDatabaseMetadata&,
+                               bool data_loss);
   virtual void onSuccess(WebIDBCursorImpl* idb_object,
                          const IndexedDBKey& key,
                          const IndexedDBKey& primaryKey,
@@ -89,7 +90,8 @@ class IndexedDBCallbacksDatabase : public IndexedDBCallbacksBase {
                          const IndexedDBDatabaseMetadata& metadata) OVERRIDE;
   virtual void onUpgradeNeeded(long long old_version,
                                WebIDBDatabaseImpl* database,
-                               const IndexedDBDatabaseMetadata&) OVERRIDE;
+                               const IndexedDBDatabaseMetadata&,
+                               bool data_loss) OVERRIDE;
 
  private:
   int64 host_transaction_id_;