Refactor WebCrypto code

content/child/webcrypto/openssl/util_openssl.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.
+
+#ifndef CONTENT_CHILD_WEBCRYPTO_OPENSSL_UTIL_OPENSSL_H_
+#define CONTENT_CHILD_WEBCRYPTO_OPENSSL_UTIL_OPENSSL_H_
+
+#include <openssl/ossl_typ.h>
+
+#include "third_party/WebKit/public/platform/WebCryptoAlgorithm.h"
+
+namespace content {
+
+namespace webcrypto {
+
+class CryptoData;
+
+enum EncryptOrDecrypt { ENCRYPT, DECRYPT };
+
+const EVP_MD* GetDigest(blink::WebCryptoAlgorithmId id);
+
+}  // namespace webcrypto
+
+}  // namespace content
+
+#endif  // CONTENT_CHILD_WEBCRYPTO_OPENSSL_UTIL_OPENSSL_H_