html_viewer: Move webcrypto to a place where html_viewer can use it.

content/child/webcrypto/openssl/aes_algorithm_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_AES_ALGORITHM_OPENSSL_H_
-#define CONTENT_CHILD_WEBCRYPTO_OPENSSL_AES_ALGORITHM_OPENSSL_H_
-
-#include "content/child/webcrypto/algorithm_implementation.h"
-
-namespace content {
-
-namespace webcrypto {
-
-// Base class for AES algorithms that provides the implementation for key
-// creation and export.
-class AesAlgorithm : public AlgorithmImplementation {
- public:
-  // |all_key_usages| is the set of all WebCrypto key usages that are
-  // allowed for imported or generated keys. |jwk_suffix| is the suffix
-  // used when constructing JWK names for the algorithm. For instance A128CBC
-  // is the JWK name for 128-bit AES-CBC. The |jwk_suffix| in this case would
-  // be "CBC".
-  AesAlgorithm(blink::WebCryptoKeyUsageMask all_key_usages,
-               const std::string& jwk_suffix);
-
-  // This is the same as the other AesAlgorithm constructor where
-  // |all_key_usages| is pre-filled to values for encryption/decryption
-  // algorithms (supports usages for: encrypt, decrypt, wrap, unwrap).
-  explicit AesAlgorithm(const std::string& jwk_suffix);
-
-  Status GenerateKey(const blink::WebCryptoAlgorithm& algorithm,
-                     bool extractable,
-                     blink::WebCryptoKeyUsageMask usages,
-                     GenerateKeyResult* result) const override;
-
-  Status VerifyKeyUsagesBeforeImportKey(
-      blink::WebCryptoKeyFormat format,
-      blink::WebCryptoKeyUsageMask usages) const override;
-
-  Status ImportKeyRaw(const CryptoData& key_data,
-                      const blink::WebCryptoAlgorithm& algorithm,
-                      bool extractable,
-                      blink::WebCryptoKeyUsageMask usages,
-                      blink::WebCryptoKey* key) const override;
-
-  Status ImportKeyJwk(const CryptoData& key_data,
-                      const blink::WebCryptoAlgorithm& algorithm,
-                      bool extractable,
-                      blink::WebCryptoKeyUsageMask usages,
-                      blink::WebCryptoKey* key) const override;
-
-  Status ExportKeyRaw(const blink::WebCryptoKey& key,
-                      std::vector<uint8_t>* buffer) const override;
-
-  Status ExportKeyJwk(const blink::WebCryptoKey& key,
-                      std::vector<uint8_t>* buffer) const override;
-
-  Status SerializeKeyForClone(
-      const blink::WebCryptoKey& key,
-      blink::WebVector<uint8_t>* key_data) const override;
-
-  Status DeserializeKeyForClone(const blink::WebCryptoKeyAlgorithm& algorithm,
-                                blink::WebCryptoKeyType type,
-                                bool extractable,
-                                blink::WebCryptoKeyUsageMask usages,
-                                const CryptoData& key_data,
-                                blink::WebCryptoKey* key) const override;
-
-  Status GetKeyLength(const blink::WebCryptoAlgorithm& key_length_algorithm,
-                      bool* has_length_bits,
-                      unsigned int* length_bits) const override;
-
- private:
-  const blink::WebCryptoKeyUsageMask all_key_usages_;
-  const std::string jwk_suffix_;
-};
-
-}  // namespace webcrypto
-
-}  // namespace content
-
-#endif  // CONTENT_CHILD_WEBCRYPTO_OPENSSL_AES_ALGORITHM_OPENSSL_H_