Revert 174726 "[webcrypto] Remove RSA-ES support (3 of 3)"

trunk/Source/modules/crypto/KeyAlgorithm.cpp

Index: trunk/Source/modules/crypto/KeyAlgorithm.cpp
===================================================================
--- trunk/Source/modules/crypto/KeyAlgorithm.cpp	(revision 174732)
+++ trunk/Source/modules/crypto/KeyAlgorithm.cpp	(working copy)
@@ -53,6 +53,8 @@
         return AesKeyAlgorithm::create(algorithm);
     case blink::WebCryptoKeyAlgorithmParamsTypeHmac:
         return HmacKeyAlgorithm::create(algorithm);
+    case blink::WebCryptoKeyAlgorithmParamsTypeRsa:
+        return RsaKeyAlgorithm::create(algorithm);
     case blink::WebCryptoKeyAlgorithmParamsTypeRsaHashed:
         return RsaHashedKeyAlgorithm::create(algorithm);
     }
@@ -93,6 +95,11 @@
     return m_algorithm.paramsType() == blink::WebCryptoKeyAlgorithmParamsTypeRsaHashed;
 }
 
+bool KeyAlgorithm::isRsaKeyAlgorithm() const
+{
+    return m_algorithm.paramsType() == blink::WebCryptoKeyAlgorithmParamsTypeRsa;
+}
+
 void KeyAlgorithm::trace(Visitor*)
 {
 }