Tell IDB frontend about data loss

content/browser/indexed_db/indexed_db_backing_store_unittest.cc

Index: content/browser/indexed_db/indexed_db_backing_store_unittest.cc
diff --git a/content/browser/indexed_db/indexed_db_backing_store_unittest.cc b/content/browser/indexed_db/indexed_db_backing_store_unittest.cc
index d519f89fa362347fe1470564ef275b646c555a7a..ebeb6e05caa3ff6250dd17f6918208982088c3f3 100644
--- a/content/browser/indexed_db/indexed_db_backing_store_unittest.cc
+++ b/content/browser/indexed_db/indexed_db_backing_store_unittest.cc
@@ -335,7 +335,12 @@ class MockIDBFactory : public IndexedDBFactory {
   scoped_refptr<IndexedDBBackingStore> TestOpenBackingStore(
       const WebSecurityOrigin& origin,
       const base::FilePath& data_directory) {
-    return OpenBackingStore(origin.databaseIdentifier(), data_directory);
+    WebKit::WebIDBCallbacks::DataLoss data_loss =
+        WebKit::WebIDBCallbacks::DataLossNone;
+    scoped_refptr<IndexedDBBackingStore> backing_store = OpenBackingStore(
+        origin.databaseIdentifier(), data_directory, &data_loss);
+    EXPECT_EQ(WebKit::WebIDBCallbacks::DataLossNone, data_loss);
+    return backing_store;
   }
 
  private: