WebCrypto: Check for HmacKeyParams when seeing if a Key can be used for an Algorithm.

Source/modules/crypto/Key.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 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef Key_h
 #define Key_h
 
 #include "bindings/v8/ScriptWrappable.h"
+#include "modules/crypto/NormalizeAlgorithm.h"
 #include "public/platform/WebCryptoKey.h"
 #include "wtf/Forward.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
 class Algorithm;
 
 class Key : public ScriptWrappable, public RefCounted<Key> {
 public:
     static PassRefPtr<Key> create(const WebKit::WebCryptoKey& key) { return adoptRef(new Key(key)); }
 
     ~Key();
 
     String type() const;
     bool extractable() const;
     Algorithm* algorithm();
     Vector<String> usages() const;
 
     const WebKit::WebCryptoKey& key() const { return m_key; }
 
+    bool canBeUsedForAlgorithm(const WebKit::WebCryptoAlgorithm&, AlgorithmOperation, ExceptionState&) const;
+
     static bool parseFormat(const String&, WebKit::WebCryptoKeyFormat&);
 
     // Parses KeyUsage strings to a WebCryptoKeyUsageMask. If any element is
     // unrecognized, returns false.
     static bool parseUsageMask(const Vector<String>&, WebKit::WebCryptoKeyUsageMask&);
 
 protected:
     explicit Key(const WebKit::WebCryptoKey&);
 
     const WebKit::WebCryptoKey m_key;
     RefPtr<Algorithm> m_algorithm;
 };
 
 } // namespace WebCore
 
 #endif