Refactor WebCrypto code

content/child/webcrypto/nss/algorithms_nss.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "content/child/webcrypto/crypto_data.h"
+#ifndef CONTENT_CHILD_WEBCRYPTO_NSS_ALGORITHMS_NSS_H_
+#define CONTENT_CHILD_WEBCRYPTO_NSS_ALGORITHMS_NSS_H_
 
 namespace content {
 
 namespace webcrypto {
 
-CryptoData::CryptoData() : bytes_(NULL), byte_length_(0) {}
+class AlgorithmImplementation;
 
-CryptoData::CryptoData(const unsigned char* bytes, unsigned int byte_length)
-    : bytes_(bytes), byte_length_(byte_length) {}
-
-CryptoData::CryptoData(const std::vector<unsigned char>& bytes)
-    : bytes_(bytes.size() ? &bytes[0] : NULL), byte_length_(bytes.size()) {}
-
-CryptoData::CryptoData(const std::string& bytes)
-    : bytes_(bytes.size() ? reinterpret_cast<const unsigned char*>(bytes.data())
-                          : NULL),
-      byte_length_(bytes.size()) {}
-
-CryptoData::CryptoData(const blink::WebVector<unsigned char>& bytes)
-    : bytes_(bytes.data()), byte_length_(bytes.size()) {}
+AlgorithmImplementation* CreateShaImplementation();
+AlgorithmImplementation* CreateAesCbcImplementation();
+AlgorithmImplementation* CreateAesGcmImplementation();
+AlgorithmImplementation* CreateAesKwImplementation();
+AlgorithmImplementation* CreateHmacImplementation();
+AlgorithmImplementation* CreateRsaOaepImplementation();
+AlgorithmImplementation* CreateRsaSsaImplementation();
 
 }  // namespace webcrypto
 
 }  // namespace content
+
+#endif  // CONTENT_CHILD_WEBCRYPTO_NSS_ALGORITHMS_NSS_H_