Refactor RSA key generation for WebCrypto's NSS implementation.

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 29bebe555261f9a8802702af7affd1a553942f97..d0f2b4a82efd8555a058effe5c787f6d1ab3e0d1 100644
--- a/content/child/webcrypto/status.h
+++ b/content/child/webcrypto/status.h
@@ -176,8 +176,8 @@ class CONTENT_EXPORT Status {
   // The modulus bytes were empty when importing an RSA public key.
   static Status ErrorImportRsaEmptyModulus();
 
-  // The the modulus length was zero bits when generating an RSA public key.
-  static Status ErrorGenerateRsaZeroModulus();
+  // The modulus length was unsupported when generating an RSA key pair.
+  static Status ErrorGenerateRsaUnsupportedModulus();
 
   // The exponent bytes were empty when importing an RSA public key.
   static Status ErrorImportRsaEmptyExponent();