WebCrypto: Add algorithm normalization rules for RSASSA-PKCS1-v1_5.

Source/core/platform/chromium/support/WebCryptoAlgorithm.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 81 matching lines @@
     return 0;
 }
 
 WebCryptoHmacParams* WebCryptoAlgorithm::hmacParams() const
 {
     if (paramsType() == WebCryptoAlgorithmParamsTypeHmacParams)
         return static_cast<WebCryptoHmacParams*>(m_private->params.get());
     return 0;
 }
 
+WebCryptoRsaSsaParams* WebCryptoAlgorithm::rsaSsaParams() const
+{
+    if (paramsType() == WebCryptoAlgorithmParamsTypeRsaSsaParams)
+        return static_cast<WebCryptoRsaSsaParams*>(m_private->params.get());
+    return 0;
+}
+
+WebCryptoRsaKeyGenParams* WebCryptoAlgorithm::rsaKeyGenParams() const
+{
+    if (paramsType() == WebCryptoAlgorithmParamsTypeRsaKeyGenParams)
+        return static_cast<WebCryptoRsaKeyGenParams*>(m_private->params.get());
+    return 0;
+}
+
 void WebCryptoAlgorithm::assign(const WebCryptoAlgorithm& other)
 {
     m_private = other.m_private;
 }
 
 void WebCryptoAlgorithm::reset()
 {
     m_private.reset();
 }
 
 } // namespace WebKit