Fixed integer signing bug in cubic bytes/packet implementation

net/tools/quic/end_to_end_test.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stddef.h>
 #include <sys/epoll.h>
 
 #include <cstdint>
 #include <list>
 #include <memory>
@@ skipping 360 matching lines @@
     return &session->connection()->sent_packet_manager();
   }
 
   bool Initialize() {
     QuicTagVector copt;
     server_config_.SetConnectionOptionsToSend(copt);
 
     // TODO(nimia): Consider setting the congestion control algorithm for the
     // client as well according to the test parameter.
     copt.push_back(GetParam().congestion_control_tag);
+    if (GetParam().congestion_control_tag == kQBIC &&
+        FLAGS_quic_fix_cubic_convex_mode) {
+      copt.push_back(kCCVX);
+    }
     if (support_server_push_) {
       copt.push_back(kSPSH);
     }
     if (GetParam().client_supports_stateless_rejects) {
       copt.push_back(kSREJ);
     }
     if (GetParam().disable_hpack_dynamic_table) {
       copt.push_back(kDHDT);
     }
     if (GetParam().force_hol_blocking) {
@@ skipping 2549 matching lines @@
   client_->WaitForResponse();
   EXPECT_EQ(kBarResponseBody, client_->response_body());
   QuicConnectionStats client_stats =
       client_->client()->session()->connection()->GetStats();
   EXPECT_EQ(0u, client_stats.packets_lost);
   EXPECT_EQ(1, client_->client()->GetNumSentClientHellos());
 }
 }  // namespace
 }  // namespace test
 }  // namespace net