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

net/quic/crypto/crypto_utils_test.cc

Index: net/quic/crypto/crypto_utils_test.cc
diff --git a/net/quic/crypto/crypto_utils_test.cc b/net/quic/crypto/crypto_utils_test.cc
index 91830f6260591afff16cedfb06f64d76fcdda689..fd9f00563ed3a710ae17f0583cecbeecce0ae637 100644
--- a/net/quic/crypto/crypto_utils_test.cc
+++ b/net/quic/crypto/crypto_utils_test.cc
@@ -68,7 +68,7 @@ TEST(CryptoUtilsTest, TestExportKeyingMaterial) {
       "3132333435363700",
       "58585858585858585858585858585858",
       16,
-      NULL
+      nullptr
     },
     // Make sure nulls in the context are fine
     { "d862c2e36b0a42f7827c67ebc8d44df7",
@@ -102,7 +102,7 @@ TEST(CryptoUtilsTest, TestExportKeyingMaterial) {
     ASSERT_TRUE(DecodeHexString(test_vector[i].label, &label));
     ASSERT_TRUE(DecodeHexString(test_vector[i].context, &context));
     size_t result_len = test_vector[i].result_len;
-    bool expect_ok = test_vector[i].expected != NULL;
+    bool expect_ok = test_vector[i].expected != nullptr;
     string expected;
     if (expect_ok) {
       ASSERT_TRUE(DecodeHexString(test_vector[i].expected, &expected));