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

net/quic/core/quic_stream.h

Index: net/quic/core/quic_stream.h
diff --git a/net/quic/core/quic_stream.h b/net/quic/core/quic_stream.h
index e74150c9de23821c44bfc01457e3e1c155afc601..2ee785eef2f6ae39076a6c594bf32df146a3f72a 100644
--- a/net/quic/core/quic_stream.h
+++ b/net/quic/core/quic_stream.h
@@ -184,10 +184,9 @@ class QUIC_EXPORT_PRIVATE QuicStream {
   // and then buffers any remaining data in queued_data_.
   // If fin is true: if it is immediately passed on to the session,
   // write_side_closed() becomes true, otherwise fin_buffered_ becomes true.
-  void WriteOrBufferData(
-      base::StringPiece data,
-      bool fin,
-      const scoped_refptr<QuicAckListenerInterface>& ack_listener);
+  void WriteOrBufferData(base::StringPiece data,
+                         bool fin,
+                         scoped_refptr<QuicAckListenerInterface> ack_listener);
 
   // Sends as many bytes in the first |count| buffers of |iov| to the connection
   // as the connection will consume.
@@ -198,7 +197,7 @@ class QUIC_EXPORT_PRIVATE QuicStream {
       const struct iovec* iov,
       int iov_count,
       bool fin,
-      const scoped_refptr<QuicAckListenerInterface>& ack_listener);
+      scoped_refptr<QuicAckListenerInterface> ack_listener);
 
   // Allows override of the session level writev, for the force HOL
   // blocking experiment.
@@ -206,7 +205,7 @@ class QUIC_EXPORT_PRIVATE QuicStream {
       QuicIOVector iov,
       QuicStreamOffset offset,
       bool fin,
-      const scoped_refptr<QuicAckListenerInterface>& ack_notifier_delegate);
+      scoped_refptr<QuicAckListenerInterface> ack_notifier_delegate);
 
   // Close the write side of the socket.  Further writes will fail.
   // Can be called by the subclass or internally.