In http/end_to_end_test, use live client address to send STATELESS_RESET.

PiperOrigin-RevId: 351865931
Change-Id: Ifb952765629f1af3d75f45c930ca8a38da1d2481

quic/core/http/end_to_end_test.cc

diff --git a/quic/core/http/end_to_end_test.cc b/quic/core/http/end_to_end_test.cc
index 3e1095b..c017b16 100644
--- a/quic/core/http/end_to_end_test.cc
+++ b/quic/core/http/end_to_end_test.cc
@@ -3054,9 +3054,9 @@
   // We must pause the server's thread in order to call WritePacket without
   // race conditions.
   server_thread_->Pause();
-  server_writer_->WritePacket(
-      packet->data(), packet->length(), server_address_.host(),
-      client_->client()->network_helper()->GetLatestClientAddress(), nullptr);
+  auto client_address = client_connection->self_address();
+  server_writer_->WritePacket(packet->data(), packet->length(),
+                              server_address_.host(), client_address, nullptr);
   server_thread_->Resume();
 
   // The request should fail.
@@ -3102,9 +3102,9 @@
   // We must pause the server's thread in order to call WritePacket without
   // race conditions.
   server_thread_->Pause();
-  server_writer_->WritePacket(
-      packet->data(), packet->length(), server_address_.host(),
-      client_->client()->network_helper()->GetLatestClientAddress(), nullptr);
+  auto client_address = client_connection->self_address();
+  server_writer_->WritePacket(packet->data(), packet->length(),
+                              server_address_.host(), client_address, nullptr);
   server_thread_->Resume();
 
   if (version_.HasIetfInvariantHeader()) {