Revert 284192 due to a failing test.

content/child/webcrypto/openssl/sym_key_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_SYM_KEY_OPENSSL_H_
-#define CONTENT_CHILD_WEBCRYPTO_OPENSSL_SYM_KEY_OPENSSL_H_
-
-#include "third_party/WebKit/public/platform/WebCrypto.h"
-
-namespace content {
-
-namespace webcrypto {
-
-class CryptoData;
-class Status;
-
-Status GenerateSecretKeyOpenSsl(const blink::WebCryptoKeyAlgorithm& algorithm,
-                                bool extractable,
-                                blink::WebCryptoKeyUsageMask usage_mask,
-                                unsigned keylen_bytes,
-                                blink::WebCryptoKey* key);
-
-Status ImportKeyRawOpenSsl(const CryptoData& key_data,
-                           const blink::WebCryptoKeyAlgorithm& algorithm,
-                           bool extractable,
-                           blink::WebCryptoKeyUsageMask usage_mask,
-                           blink::WebCryptoKey* key);
-
-}  // namespace webcrypto
-
-}  // namespace content
-
-#endif  // CONTENT_CHILD_WEBCRYPTO_OPENSSL_SYM_KEY_OPENSSL_H_