[webcrypto] Require importKey() for JWK to provide data as a Javascript object rather than a JSON a…

LayoutTests/crypto/rsa-oaep-key-manipulation.html

Index: LayoutTests/crypto/rsa-oaep-key-manipulation.html
diff --git a/LayoutTests/crypto/rsa-oaep-key-manipulation.html b/LayoutTests/crypto/rsa-oaep-key-manipulation.html
index dc616182dff133d2406616f1131eac074879edf8..8d7631ec907ad107b4f5fb9504ba0948159032a2 100644
--- a/LayoutTests/crypto/rsa-oaep-key-manipulation.html
+++ b/LayoutTests/crypto/rsa-oaep-key-manipulation.html
@@ -71,7 +71,7 @@ crypto.subtle.generateKey(algorithmKeyGen, extractable, ["encrypt", "decrypt", "
     shouldBe("bytesToHexString(Base64URL.parse(jwkPublicKey.e))", "'010001'");
 
     debug("\nImporting it back...");
-    return crypto.subtle.importKey("jwk", jwkPublicKeyArray, { name: "RSA-OAEP", hash: {name: "sha-1"} }, extractable, ["encrypt", "wrapKey"]);
+    return crypto.subtle.importKey("jwk", jwkPublicKey, { name: "RSA-OAEP", hash: {name: "sha-1"} }, extractable, ["encrypt", "wrapKey"]);
 }).then(function(result) {
     exportedPublicKey = result;
     shouldBe("exportedPublicKey.type", "'public'");