Make DiversificationNonce a std::array

net/quic/core/crypto/quic_decrypter.h

Index: net/quic/core/crypto/quic_decrypter.h
diff --git a/net/quic/core/crypto/quic_decrypter.h b/net/quic/core/crypto/quic_decrypter.h
index e0a6150b1e6b15ada93bd6871c84f923e51b1c62..0a5eea3d388ea9b2357f76f1747072dcc09b3bd3 100644
--- a/net/quic/core/crypto/quic_decrypter.h
+++ b/net/quic/core/crypto/quic_decrypter.h
@@ -56,7 +56,7 @@ class NET_EXPORT_PRIVATE QuicDecrypter {
   //
   // Calling this function is a no-op if |SetPreliminaryKey| hasn't been
   // called.
-  virtual bool SetDiversificationNonce(DiversificationNonce nonce) = 0;
+  virtual bool SetDiversificationNonce(const DiversificationNonce& nonce) = 0;
 
   // Populates |output| with the decrypted |ciphertext| and populates
   // |output_length| with the length.  Returns 0 if there is an error.
@@ -86,7 +86,7 @@ class NET_EXPORT_PRIVATE QuicDecrypter {
 
   static void DiversifyPreliminaryKey(base::StringPiece preliminary_key,
                                       base::StringPiece nonce_prefix,
-                                      DiversificationNonce nonce,
+                                      const DiversificationNonce& nonce,
                                       size_t key_size,
                                       size_t nonce_prefix_size,
                                       std::string* out_key,