Rename USE_NSS to USE_NSS_CERTS.

net/quic/crypto/aead_base_decrypter.h

 // 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.
 
 #ifndef NET_QUIC_CRYPTO_AEAD_BASE_DECRYPTER_H_
 #define NET_QUIC_CRYPTO_AEAD_BASE_DECRYPTER_H_
 
 #include "base/compiler_specific.h"
 #include "net/quic/crypto/quic_decrypter.h"
 
@@ skipping 45 matching lines @@
   // can assert at compile time their key_size_ and nonce_prefix_size_ do not
   // exceed the maximum.
   static const size_t kMaxKeySize = 32;
   static const size_t kMaxNoncePrefixSize = 4;
 
 #if !defined(USE_OPENSSL)
   struct AeadParams {
     unsigned int len;
     union {
       CK_GCM_PARAMS gcm_params;
-#if !defined(USE_NSS)
-      // USE_NSS means we are using system NSS rather than our copy of NSS.
-      // The system NSS <pkcs11n.h> header doesn't define this type yet.
+#if !defined(USE_NSS_CERTS)
+      // USE_NSS_CERTS implies we are using system NSS rather than our copy of
+      // NSS. The system NSS <pkcs11n.h> header doesn't define this type yet.
       CK_NSS_AEAD_PARAMS nss_aead_params;
 #endif
     } data;
   };
 
   virtual void FillAeadParams(base::StringPiece nonce,
                               const base::StringPiece& associated_data,
                               size_t auth_tag_size,
                               AeadParams* aead_params) const = 0;
 #endif  // !defined(USE_OPENSSL)
@@ skipping 24 matching lines @@
 #if defined(USE_OPENSSL)
   ScopedEVPAEADCtx ctx_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(AeadBaseDecrypter);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CRYPTO_AEAD_BASE_DECRYPTER_H_