Improve style of JWK serializer

net/cert/jwk_serializer_nss.cc

Index: net/cert/jwk_serializer_nss.cc
diff --git a/net/cert/jwk_serializer_nss.cc b/net/cert/jwk_serializer_nss.cc
index 0259c5c515ca048e67df92c1e22898344805acf3..d8445805f8e3b7d10e8241c3ca7fe9ce94fda307 100644
--- a/net/cert/jwk_serializer_nss.cc
+++ b/net/cert/jwk_serializer_nss.cc
@@ -22,12 +22,12 @@ namespace {
 bool ConvertEcPrime256v1PublicKeyInfoToJwk(
     CERTSubjectPublicKeyInfo* spki,
     base::DictionaryValue* public_key_jwk) {
-  static const int kPrime256v1EncodingType = 4;
+  static const int kUncompressedEncodingType = 4;
   static const int kPrime256v1PublicKeyLength = 64;
   // The public key value is encoded as 0x04 + 64 bytes of public key.
   // NSS gives the length as the bit length.
   if (spki->subjectPublicKey.len != (kPrime256v1PublicKeyLength + 1) * 8 ||
-      spki->subjectPublicKey.data[0] != kPrime256v1EncodingType)
+      spki->subjectPublicKey.data[0] != kUncompressedEncodingType)
     return false;
 
   public_key_jwk->SetString("alg", "EC");