Make test target unsigned so that it compiles on chromium.

gfe-relnote: n/a test code only.
PiperOrigin-RevId: 244177964
Change-Id: I31bd5cbded223d950f14bda04cf09f402d97deea

quic/core/crypto/transport_parameters_test.cc

diff --git a/quic/core/crypto/transport_parameters_test.cc b/quic/core/crypto/transport_parameters_test.cc
index cf36581..4a7c9e7 100644
--- a/quic/core/crypto/transport_parameters_test.cc
+++ b/quic/core/crypto/transport_parameters_test.cc
@@ -152,7 +152,7 @@
 
   EXPECT_EQ(Perspective::IS_SERVER, new_params.perspective);
   EXPECT_EQ(kFakeVersionLabel, new_params.version);
-  EXPECT_EQ(2, new_params.supported_versions.size());
+  EXPECT_EQ(2u, new_params.supported_versions.size());
   EXPECT_EQ(kFakeVersionLabel, new_params.supported_versions[0]);
   EXPECT_EQ(kFakeVersionLabel2, new_params.supported_versions[1]);
   EXPECT_EQ(kFakeOriginalConnectionId, new_params.original_connection_id);