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

content/child/webcrypto/openssl/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_KEY_OPENSSL_H_
-#define CONTENT_CHILD_WEBCRYPTO_OPENSSL_KEY_OPENSSL_H_
-
-#include <openssl/ossl_typ.h>
-#include <stdint.h>
-#include <vector>
-
-#include "base/macros.h"
-#include "crypto/scoped_openssl_types.h"
-#include "third_party/WebKit/public/platform/WebCryptoKey.h"
-
-namespace content {
-
-namespace webcrypto {
-
-class CryptoData;
-class AsymKeyOpenSsl;
-class SymKeyOpenSsl;
-
-// Base key class for all OpenSSL keys, used to safely cast between types. Each
-// key maintains a copy of its serialized form in either 'raw', 'pkcs8', or
-// 'spki' format. This is to allow structured cloning of keys synchronously from
-// the target Blink thread without having to lock access to the key.
-class KeyOpenSsl : public blink::WebCryptoKeyHandle {
- public:
-  explicit KeyOpenSsl(const CryptoData& serialized_key_data);
-  ~KeyOpenSsl() override;
-
-  virtual SymKeyOpenSsl* AsSymKey();
-  virtual AsymKeyOpenSsl* AsAsymKey();
-
-  const std::vector<uint8_t>& serialized_key_data() const {
-    return serialized_key_data_;
-  }
-
- private:
-  const std::vector<uint8_t> serialized_key_data_;
-};
-
-class SymKeyOpenSsl : public KeyOpenSsl {
- public:
-  ~SymKeyOpenSsl() override;
-  explicit SymKeyOpenSsl(const CryptoData& raw_key_data);
-
-  static SymKeyOpenSsl* Cast(const blink::WebCryptoKey& key);
-
-  SymKeyOpenSsl* AsSymKey() override;
-
-  const std::vector<uint8_t>& raw_key_data() const {
-    return serialized_key_data();
-  }
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(SymKeyOpenSsl);
-};
-
-class AsymKeyOpenSsl : public KeyOpenSsl {
- public:
-  ~AsymKeyOpenSsl() override;
-  AsymKeyOpenSsl(crypto::ScopedEVP_PKEY key,
-                 const CryptoData& serialized_key_data);
-
-  static AsymKeyOpenSsl* Cast(const blink::WebCryptoKey& key);
-
-  AsymKeyOpenSsl* AsAsymKey() override;
-
-  EVP_PKEY* key() { return key_.get(); }
-
- private:
-  crypto::ScopedEVP_PKEY key_;
-
-  DISALLOW_COPY_AND_ASSIGN(AsymKeyOpenSsl);
-};
-
-}  // namespace webcrypto
-
-}  // namespace content
-
-#endif  // CONTENT_CHILD_WEBCRYPTO_OPENSSL_KEY_OPENSSL_H_