Use the hostname from the URL when connecting the QUIC toy client.

gfe-relnote: n/a - not used in the GFE
PiperOrigin-RevId: 252093290
Change-Id: I24736d026c747b89343ffa149e493452cd4bedaf

quic/tools/quic_toy_client.cc

diff --git a/quic/tools/quic_toy_client.cc b/quic/tools/quic_toy_client.cc
index f6e2e15..4fa00db 100644
--- a/quic/tools/quic_toy_client.cc
+++ b/quic/tools/quic_toy_client.cc
@@ -221,7 +221,7 @@
 
   // Build the client, and try to connect.
   std::unique_ptr<QuicSpdyClientBase> client = client_factory_->CreateClient(
-      host, port, versions, std::move(proof_verifier));
+      url.host(), port, versions, std::move(proof_verifier));
 
   int32_t initial_mtu = GetQuicFlag(FLAGS_initial_mtu);
   client->set_initial_max_packet_length(