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

trunk/Source/modules/crypto/KeyAlgorithm.h

 /*
  * 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 34 matching lines @@
 
     static KeyAlgorithm* create(const blink::WebCryptoKeyAlgorithm&);
     static KeyAlgorithm* createHash(const blink::WebCryptoAlgorithm&);
 
     String name();
 
     // Needed by SpecialWrapFor and for casting.
     bool isAesKeyAlgorithm() const;
     bool isHmacKeyAlgorithm() const;
     bool isRsaHashedKeyAlgorithm() const;
+    bool isRsaKeyAlgorithm() const;
 
     virtual void trace(Visitor*);
 
 protected:
     explicit KeyAlgorithm(const blink::WebCryptoKeyAlgorithm&);
 
     blink::WebCryptoKeyAlgorithm m_algorithm;
 };
 
 #define DEFINE_KEY_ALGORITHM_TYPE_CASTS(thisType) \
     DEFINE_TYPE_CASTS(thisType, KeyAlgorithm, value, value->is##thisType(), value.is##thisType())
 
 } // namespace WebCore
 
 #endif