Make DiversificationNonce a std::array

net/quic/core/quic_connection_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 "net/quic/core/quic_connection.h"
 
 #include <errno.h>
 #include <memory>
 #include <ostream>
 #include <utility>
@@ skipping 133 matching lines @@
   // QuicDecrypter interface
   bool SetKey(StringPiece key) override { return true; }
 
   bool SetNoncePrefix(StringPiece nonce_prefix) override { return true; }
 
   bool SetPreliminaryKey(StringPiece key) override {
     QUIC_BUG << "should not be called";
     return false;
   }
 
-  bool SetDiversificationNonce(DiversificationNonce key) override {
+  bool SetDiversificationNonce(const DiversificationNonce& key) override {
     return true;
   }
 
   bool DecryptPacket(QuicPathId path_id,
                      QuicPacketNumber packet_number,
                      StringPiece associated_data,
                      StringPiece ciphertext,
                      char* output,
                      size_t* output_length,
                      size_t max_output_length) override {
@@ skipping 5078 matching lines @@
   connection_.SendStreamDataWithString(3, "foo", 0, !kFin, nullptr);
   EXPECT_EQ(1u, writer_->frame_count());
   EXPECT_FALSE(writer_->connection_close_frames().empty());
   // Ack frame is not bundled in connection close packet.
   EXPECT_TRUE(writer_->ack_frames().empty());
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net