[webcrypto] Add JWK import/export of RSA private keys (NSS).

content/child/webcrypto/platform_crypto_openssl.cc

Index: content/child/webcrypto/platform_crypto_openssl.cc
diff --git a/content/child/webcrypto/platform_crypto_openssl.cc b/content/child/webcrypto/platform_crypto_openssl.cc
index 1f520e83d276238cd33393c08116ec4753a79ac9..aeefa35403d7681a242deb81ebf08eba02da9568 100644
--- a/content/child/webcrypto/platform_crypto_openssl.cc
+++ b/content/child/webcrypto/platform_crypto_openssl.cc
@@ -381,6 +381,24 @@ Status ImportRsaPublicKey(const blink::WebCryptoAlgorithm& algorithm,
   return Status::ErrorUnsupported();
 }
 
+Status ImportRsaPrivateKey(const blink::WebCryptoAlgorithm& algorithm,
+                           bool extractable,
+                           blink::WebCryptoKeyUsageMask usage_mask,
+                           const CryptoData& modulus,
+                           const CryptoData& public_exponent,
+                           const CryptoData& private_exponent,
+                           bool has_prime1,
+                           const CryptoData& prime1,
+                           bool has_prime2,
+                           const CryptoData& prime2,
+                           bool has_exponent1,
+                           const CryptoData& exponent1,
+                           bool has_exponent2,
+                           const CryptoData& exponent2,
+                           bool has_coefficient,
+                           const CryptoData& coefficient,
+                           blink::WebCryptoKey* key);
+
 Status EncryptDecryptAesGcm(EncryptOrDecrypt mode,
                             SymKey* key,
                             const CryptoData& data,
@@ -462,6 +480,19 @@ Status ExportRsaPublicKey(PublicKey* key,
   return Status::ErrorUnsupported();
 }
 
+Status ExportRsaPrivateKey(PrivateKey* key,
+                           std::vector<uint8>* modulus,
+                           std::vector<uint8>* public_exponent,
+                           std::vector<uint8>* private_exponent,
+                           std::vector<uint8>* prime1,
+                           std::vector<uint8>* prime2,
+                           std::vector<uint8>* exponent1,
+                           std::vector<uint8>* exponent2,
+                           std::vector<uint8>* coefficient) {
+  // TODO(eroman): http://crbug.com/267888
+  return Status::ErrorUnsupported();
+}
+
 Status WrapSymKeyAesKw(SymKey* key,
                        SymKey* wrapping_key,
                        std::vector<uint8>* buffer) {