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

net/quic/crypto/aead_base_encrypter_nss.cc

 // Copyright (c) 2013 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/crypto/aead_base_encrypter.h"
 
 #include <pk11pub.h>
 
 #include "base/memory/scoped_ptr.h"
 #include "crypto/scoped_nss_types.h"
@@ skipping 59 matching lines @@
   // workaround. Remove this when we require NSS 3.15.
   CK_MECHANISM_TYPE key_mechanism = aead_mechanism_;
   if (key_mechanism == CKM_AES_GCM) {
     key_mechanism = CKM_AES_ECB;
   }
 
   // The exact value of the |origin| argument doesn't matter to NSS as long as
   // it's not PK11_OriginFortezzaHack, so we pass PK11_OriginUnwrap as a
   // placeholder.
   crypto::ScopedPK11SymKey aead_key(PK11_ImportSymKey(
-      slot, key_mechanism, PK11_OriginUnwrap, CKA_ENCRYPT, &key_item, NULL));
+      slot, key_mechanism, PK11_OriginUnwrap, CKA_ENCRYPT, &key_item, nullptr));
   PK11_FreeSlot(slot);
-  slot = NULL;
+  slot = nullptr;
   if (!aead_key) {
     DVLOG(1) << "PK11_ImportSymKey failed";
     return false;
   }
 
   AeadParams aead_params = {0};
   FillAeadParams(nonce, associated_data, auth_tag_size_, &aead_params);
 
   SECItem param;
   param.type = siBuffer;
@@ skipping 27 matching lines @@
   // TODO(ianswett): Introduce a check to ensure that we don't encrypt with the
   // same sequence number twice.
   uint8 nonce[sizeof(nonce_prefix_) + sizeof(sequence_number)];
   const size_t nonce_size = nonce_prefix_size_ + sizeof(sequence_number);
   DCHECK_LE(nonce_size, sizeof(nonce));
   memcpy(nonce, nonce_prefix_, nonce_prefix_size_);
   memcpy(nonce + nonce_prefix_size_, &sequence_number, sizeof(sequence_number));
   if (!Encrypt(StringPiece(reinterpret_cast<char*>(nonce), nonce_size),
                associated_data, plaintext,
                reinterpret_cast<unsigned char*>(ciphertext.get()))) {
-    return NULL;
+    return nullptr;
   }
 
   return new QuicData(ciphertext.release(), ciphertext_size, true);
 }
 
 size_t AeadBaseEncrypter::GetKeySize() const { return key_size_; }
 
 size_t AeadBaseEncrypter::GetNoncePrefixSize() const {
   return nonce_prefix_size_;
 }
@@ skipping 12 matching lines @@
 
 StringPiece AeadBaseEncrypter::GetNoncePrefix() const {
   if (nonce_prefix_size_ == 0) {
     return StringPiece();
   }
   return StringPiece(reinterpret_cast<const char*>(nonce_prefix_),
                      nonce_prefix_size_);
 }
 
 }  // namespace net