Remove the Vector::append overload that takes a Vector

Source/core/html/forms/FormController.cpp

Index: Source/core/html/forms/FormController.cpp
diff --git a/Source/core/html/forms/FormController.cpp b/Source/core/html/forms/FormController.cpp
index 09f2b0ef05ed45a8fea3c43dfa294fd67d56bb8a..df0d2aba9125e72944acaa6974b9cdd16d4018c5 100644
--- a/Source/core/html/forms/FormController.cpp
+++ b/Source/core/html/forms/FormController.cpp
@@ -508,7 +508,7 @@ Vector<String> FormController::getReferencedFilePaths(const Vector<String>& stat
     SavedFormStateMap map;
     formStatesFromStateVector(stateVector, map);
     for (SavedFormStateMap::const_iterator it = map.begin(); it != map.end(); ++it)
-        toReturn.append(it->value->getReferencedFilePaths());
+        toReturn.appendVector(it->value->getReferencedFilePaths());
     return toReturn;
 }