Fixed integer signing bug in cubic bytes/packet implementation

net/tools/quic/end_to_end_test.cc

Index: net/tools/quic/end_to_end_test.cc
diff --git a/net/tools/quic/end_to_end_test.cc b/net/tools/quic/end_to_end_test.cc
index a8f09094b2722aac1d9b71d4a0199d53997efee9..06f5399bc253082e3fd47d660cf1bfe662dfdd6c 100644
--- a/net/tools/quic/end_to_end_test.cc
+++ b/net/tools/quic/end_to_end_test.cc
@@ -378,6 +378,10 @@ class EndToEndTest : public ::testing::TestWithParam<TestParams> {
     // 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);
     }