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

content/child/webcrypto/openssl/key_openssl.h

Index: content/child/webcrypto/openssl/key_openssl.h
diff --git a/content/child/webcrypto/openssl/key_openssl.h b/content/child/webcrypto/openssl/key_openssl.h
index ef3243893106161c24c0a9b7d3bdbd5356d9e1e9..768acafbd1c5c5c279979733e53fabb4860312d9 100644
--- a/content/child/webcrypto/openssl/key_openssl.h
+++ b/content/child/webcrypto/openssl/key_openssl.h
@@ -5,12 +5,16 @@
 #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
@@ -23,6 +27,7 @@ class KeyOpenSsl : public blink::WebCryptoKeyHandle {
   virtual ~KeyOpenSsl();
 
   virtual SymKeyOpenSsl* AsSymKey();
+  virtual AsymKeyOpenSsl* AsAsymKey();
 
   const std::vector<uint8>& serialized_key_data() const {
     return serialized_key_data_;
@@ -49,6 +54,24 @@ class SymKeyOpenSsl : public KeyOpenSsl {
   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