[webcrypto] Add crypto.subtle.wrapKey() and crypto.subtle.unwrapKey()

Source/modules/crypto/SubtleCrypto.h

Index: Source/modules/crypto/SubtleCrypto.h
diff --git a/Source/modules/crypto/SubtleCrypto.h b/Source/modules/crypto/SubtleCrypto.h
index f1503e709738558b5d0dfd5dea0b674cb97aa1a1..313d8ee304d87bba5ba7ab19e9999ab30de7d9a5 100644
--- a/Source/modules/crypto/SubtleCrypto.h
+++ b/Source/modules/crypto/SubtleCrypto.h
@@ -58,6 +58,9 @@ public:
     ScriptPromise importKey(const String&, ArrayBufferView*, const Dictionary&, bool extractable, const Vector<String>& keyUsages, ExceptionState&);
     ScriptPromise exportKey(const String&, Key*, ExceptionState&);
 
+    ScriptPromise wrapKey(const String&, Key*, Key*, const Dictionary&, ExceptionState&);
+    ScriptPromise unwrapKey(const String&, ArrayBufferView*, Key*, const Dictionary&, const Dictionary&, bool, const Vector<String>&, ExceptionState&);
+
 private:
     SubtleCrypto();
 };