Add RSAPrivateKey::CreateFromKeypair()

crypto/rsa_private_key.h

Index: crypto/rsa_private_key.h
diff --git a/crypto/rsa_private_key.h b/crypto/rsa_private_key.h
index ff368d82ace88b6576dfdf2d154cce4b8a811ef3..1c14d783e653efec966e0f026b4782af2b21c529 100644
--- a/crypto/rsa_private_key.h
+++ b/crypto/rsa_private_key.h
@@ -200,6 +200,11 @@ class CRYPTO_EXPORT RSAPrivateKey {
   static RSAPrivateKey* CreateSensitiveFromPrivateKeyInfo(
       const std::vector<uint8>& input);
 
+#if defined(USE_NSS)
+  static RSAPrivateKey* CreateFromKeypair(SECKEYPrivateKeyStr* key,
+                                          SECKEYPublicKeyStr* public_key);
+#endif
+
   // Import an existing public key, and then search for the private
   // half in the key database. The format of the public key blob is is
   // an X509 SubjectPublicKeyInfo block. This can return NULL if