Pass value and use std::move instead of const reference for ack listeners.

net/quic/core/quic_connection_test.cc

Index: net/quic/core/quic_connection_test.cc
diff --git a/net/quic/core/quic_connection_test.cc b/net/quic/core/quic_connection_test.cc
index d14365cad2b0af876217f1167ea46c14439ec87d..e60eac3e016c78d69658d9746dbc37d5b85befa2 100644
--- a/net/quic/core/quic_connection_test.cc
+++ b/net/quic/core/quic_connection_test.cc
@@ -516,13 +516,14 @@ class TestConnection : public QuicConnection {
       StringPiece data,
       QuicStreamOffset offset,
       bool fin,
-      const scoped_refptr<QuicAckListenerInterface>& listener) {
+      scoped_refptr<QuicAckListenerInterface> listener) {
     if (id != kCryptoStreamId && this->encryption_level() == ENCRYPTION_NONE) {
       this->SetDefaultEncryptionLevel(ENCRYPTION_FORWARD_SECURE);
     }
     struct iovec iov;
     QuicIOVector data_iov(MakeIOVector(data, &iov));
-    return QuicConnection::SendStreamData(id, data_iov, offset, fin, listener);
+    return QuicConnection::SendStreamData(id, data_iov, offset, fin,
+                                          std::move(listener));
   }
 
   QuicConsumedData SendStreamData3() {