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

content/child/webcrypto/status.h

Index: content/child/webcrypto/status.h
diff --git a/content/child/webcrypto/status.h b/content/child/webcrypto/status.h
index 69f40be7c4f3e374532b33b0f6a66573979e7836..0996bb31a5876bf669dac379e21745a1b3da215d 100644
--- a/content/child/webcrypto/status.h
+++ b/content/child/webcrypto/status.h
@@ -102,9 +102,6 @@ class CONTENT_EXPORT Status {
   // are incompatible with each other.
   static Status ErrorJwkUseAndKeyopsInconsistent();
 
-  // TODO(eroman): Private key import through JWK is not yet supported.
-  static Status ErrorJwkRsaPrivateKeyUnsupported();
-
   // The "kty" parameter was given and was a string, however it was
   // unrecognized.
   static Status ErrorJwkUnrecognizedKty();
@@ -115,6 +112,10 @@ class CONTENT_EXPORT Status {
   // given that is an error.
   static Status ErrorJwkIncorrectKeyLength();
 
+  // The JWK was for an RSA private key but only partially provided the optional
+  // parameters (p, q, dq, dq, qi).
+  static Status ErrorJwkIncompleteOptionalRsaPrivateKey();
+
   // ------------------------------------
   // Other errors
   // ------------------------------------