[webcrypto] Wire up {spki, pkcs8} import/export for OpenSSL.

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 "content/child/webcrypto/algorithm_implementation.h"
+#include "crypto/scoped_openssl_types.h"
 
 namespace content {
 
 namespace webcrypto {
 
+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);
   virtual ~KeyOpenSsl();
 
   virtual SymKeyOpenSsl* AsSymKey();
+  virtual AsymKeyOpenSsl* AsAsymKey();
 
   const std::vector<uint8>& serialized_key_data() const {
     return serialized_key_data_;
   }
 
  private:
   const std::vector<uint8> serialized_key_data_;
 };
 
 class SymKeyOpenSsl : public KeyOpenSsl {
  public:
   virtual ~SymKeyOpenSsl();
   explicit SymKeyOpenSsl(const CryptoData& raw_key_data);
 
   static SymKeyOpenSsl* Cast(const blink::WebCryptoKey& key);
 
   virtual SymKeyOpenSsl* AsSymKey() OVERRIDE;
 
   const std::vector<uint8>& raw_key_data() const {
     return serialized_key_data();
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SymKeyOpenSsl);
 };
 
+class AsymKeyOpenSsl : public KeyOpenSsl {
+ public:
+  virtual ~AsymKeyOpenSsl();
+  AsymKeyOpenSsl(crypto::ScopedEVP_PKEY key,
+                 const CryptoData& serialized_key_data);
+
+  static AsymKeyOpenSsl* Cast(const blink::WebCryptoKey& key);
+
+  virtual 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_