CREDENTIAL: Update PasswordCredential's constructor.

LayoutTests/http/tests/credentialmanager/credentialscontainer-store-basics.html

Index: LayoutTests/http/tests/credentialmanager/credentialscontainer-store-basics.html
diff --git a/LayoutTests/http/tests/credentialmanager/credentialscontainer-store-basics.html b/LayoutTests/http/tests/credentialmanager/credentialscontainer-store-basics.html
index a5ca87b7c72b1609eed95a5b6f0bb4c62352d7c3..19392daaa4672a51299ffe1d6d4165db1977ba2e 100644
--- a/LayoutTests/http/tests/credentialmanager/credentialscontainer-store-basics.html
+++ b/LayoutTests/http/tests/credentialmanager/credentialscontainer-store-basics.html
@@ -12,12 +12,18 @@ function stubRejectionChecker(reason) {
     assert_unreached("store() should not reject, but did: " + reason.name);
 }
 
-var local = new PasswordCredential('id', 'pencil', 'name', 'https://example.com/icon.png');
+var local = new PasswordCredential({
+    id: 'id',
+    password: 'pencil',
+    name: 'name',
+    iconURL: 'https://example.com/icon.png'
+});
+
 var federated = new FederatedCredential({
-    'id': 'id',
-    'provider': 'https://federation.test/',
-    'name': 'name',
-    'iconURL': 'https://example.test/icon.png'
+    id: 'id',
+    provider: 'https://federation.test/',
+    name: 'name',
+    iconURL: 'https://example.test/icon.png'
 });
 
 async_test(function () {