Prepare to eliminate WebDOMStringList

Source/modules/indexeddb/IDBFactoryBackendImpl.cpp

Index: Source/modules/indexeddb/IDBFactoryBackendImpl.cpp
diff --git a/Source/modules/indexeddb/IDBFactoryBackendImpl.cpp b/Source/modules/indexeddb/IDBFactoryBackendImpl.cpp
index d706ad56412ec9b24995a7f7fe40d75ac5b7df6f..c034df5db777a7afc2cccb75296ed2e449c7bb75 100644
--- a/Source/modules/indexeddb/IDBFactoryBackendImpl.cpp
+++ b/Source/modules/indexeddb/IDBFactoryBackendImpl.cpp
@@ -88,13 +88,7 @@ void IDBFactoryBackendImpl::getDatabaseNames(PassRefPtr<IDBCallbacks> callbacks,
         return;
     }
 
-    RefPtr<DOMStringList> databaseNames = DOMStringList::create();
-
-    Vector<String> foundNames = backingStore->getDatabaseNames();
-    for (Vector<String>::const_iterator it = foundNames.begin(); it != foundNames.end(); ++it)
-        databaseNames->append(*it);
-
-    callbacks->onSuccess(databaseNames.release());
+    callbacks->onSuccess(backingStore->getDatabaseNames());
 }
 
 void IDBFactoryBackendImpl::deleteDatabase(const String& name, PassRefPtr<IDBCallbacks> callbacks, PassRefPtr<SecurityOrigin> securityOrigin, ScriptExecutionContext*, const String& dataDirectory)