[webcrypto] Add the KeyAlgorithm interface.

Source/modules/crypto/KeyPair.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 25 matching lines @@
 #include "wtf/Forward.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 
 namespace blink { class WebCryptoKey; }
 
 namespace WebCore {
 
 class Key;
 
-class KeyPair : public RefCountedWillBeGarbageCollectedFinalized<KeyPair>,  public ScriptWrappable {
+class KeyPair : public RefCountedWillBeGarbageCollectedFinalized<KeyPair>, public ScriptWrappable {
 public:
     static PassRefPtrWillBeRawPtr<KeyPair> create(const blink::WebCryptoKey& publicKey, const blink::WebCryptoKey& privateKey);
 
     Key* publicKey() { return m_publicKey.get(); }
     Key* privateKey() { return m_privateKey.get(); }
 
     void trace(Visitor*);
 
 protected:
     KeyPair(const PassRefPtrWillBeRawPtr<Key>& publicKey, const PassRefPtrWillBeRawPtr<Key>& privateKey);
 
     RefPtrWillBeMember<Key> m_publicKey;
     RefPtrWillBeMember<Key> m_privateKey;
 };
 
 } // namespace WebCore
 
 #endif