Rename USE_NSS to USE_NSS_CERTS.

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 5ca33bf1d9739954d00bf29660ff4a8e16d3473d..6ad96f4f34d2c0b9ebd9e4c38cfd4ae7893837b1 100644
--- a/net/quic/crypto/aes_128_gcm_12_encrypter_nss.cc
+++ b/net/quic/crypto/aes_128_gcm_12_encrypter_nss.cc
@@ -11,7 +11,7 @@
 #include "crypto/ghash.h"
 #include "crypto/scoped_nss_types.h"
 
-#if defined(USE_NSS)
+#if defined(USE_NSS_CERTS)
 #include <dlfcn.h>
 #endif
 
@@ -40,7 +40,7 @@ class GcmSupportChecker {
   friend struct base::DefaultLazyInstanceTraits<GcmSupportChecker>;
 
   GcmSupportChecker() {
-#if !defined(USE_NSS)
+#if !defined(USE_NSS_CERTS)
     // Using a bundled version of NSS that is guaranteed to have this symbol.
     pk11_encrypt_func_ = PK11_Encrypt;
 #else