WebCrypto: Add the KeyPair interface.

Source/modules/crypto/KeyPair.cpp

Index: Source/modules/crypto/KeyPair.cpp
diff --git a/Source/modules/crypto/AesCbcParams.cpp b/Source/modules/crypto/KeyPair.cpp
similarity index 72%
copy from Source/modules/crypto/AesCbcParams.cpp
copy to Source/modules/crypto/KeyPair.cpp
index e84bc7a2c984a644833b2bd67b73973315729a3e..6b47bc5f8a0b51e85b7f1784ca123b5bbd026095 100644
--- a/Source/modules/crypto/AesCbcParams.cpp
+++ b/Source/modules/crypto/KeyPair.cpp
@@ -29,25 +29,26 @@
  */
 
 #include "config.h"
-#include "modules/crypto/AesCbcParams.h"
+#include "modules/crypto/KeyPair.h"
 
-#include "public/platform/WebCryptoAlgorithmParams.h"
+#include "modules/crypto/Key.h"
+#include "public/platform/WebCryptoKey.h"
 
 namespace WebCore {
 
-Uint8Array* AesCbcParams::iv()
+PassRefPtr<KeyPair> KeyPair::create(const WebKit::WebCryptoKey& publicKey, const WebKit::WebCryptoKey& privateKey)
 {
-    if (!m_iv) {
-        const WebKit::WebVector<unsigned char>& iv = m_algorithm.aesCbcParams()->iv();
-        m_iv = Uint8Array::create(iv.data(), iv.size());
-    }
-    return m_iv.get();
+    ASSERT(publicKey.type() == WebKit::WebCryptoKeyTypePublic);
+    ASSERT(privateKey.type() == WebKit::WebCryptoKeyTypePrivate);
+    return adoptRef(new KeyPair(Key::create(publicKey), Key::create(privateKey)));
 }
 
-AesCbcParams::AesCbcParams(const WebKit::WebCryptoAlgorithm& algorithm)
-    : Algorithm(algorithm)
+KeyPair::KeyPair(const PassRefPtr<Key>& publicKey, const PassRefPtr<Key>& privateKey)
+    : m_publicKey(publicKey)
+    , m_privateKey(privateKey)
 {
-    ASSERT(algorithm.aesCbcParams());
+    ASSERT(publicKey);
+    ASSERT(privateKey);
     ScriptWrappable::init(this);
 }