QUIC - (no behavior change) s/NULL/nullptr/g in .../quic/...

net/quic/crypto/aes_128_gcm_12_encrypter_nss.cc

Index: net/quic/crypto/aes_128_gcm_12_encrypter_nss.cc
diff --git a/net/quic/crypto/aes_128_gcm_12_encrypter_nss.cc b/net/quic/crypto/aes_128_gcm_12_encrypter_nss.cc
index 09901a4767243027aa73381c8c26fccf09513acc..6214af540f2740b32f5bcb872acf328a243b21b9 100644
--- a/net/quic/crypto/aes_128_gcm_12_encrypter_nss.cc
+++ b/net/quic/crypto/aes_128_gcm_12_encrypter_nss.cc
@@ -59,7 +59,7 @@ class GcmSupportChecker {
 };
 
 // static
-PK11_EncryptFunction GcmSupportChecker::pk11_encrypt_func_ = NULL;
+PK11_EncryptFunction GcmSupportChecker::pk11_encrypt_func_ = nullptr;
 
 base::LazyInstance<GcmSupportChecker>::Leaky g_gcm_support_checker =
     LAZY_INSTANCE_INITIALIZER;
@@ -78,7 +78,7 @@ SECStatus My_Encrypt(PK11SymKey* key,
   // being used, then NSS will support AES-GCM directly.
   PK11_EncryptFunction pk11_encrypt_func =
       GcmSupportChecker::pk11_encrypt_func();
-  if (pk11_encrypt_func != NULL) {
+  if (pk11_encrypt_func != nullptr) {
     return pk11_encrypt_func(key, mechanism, param, out, out_len, max_len, data,
                              data_len);
   }
@@ -110,7 +110,7 @@ SECStatus My_Encrypt(PK11SymKey* key,
     return SECFailure;
   }
 
-  SECItem my_param = { siBuffer, NULL, 0 };
+  SECItem my_param = { siBuffer, nullptr, 0 };
 
   // Step 1. Let H = CIPH_K(128 '0' bits).
   unsigned char ghash_key[16] = {0};