Blink-layer update to match WebAuthN spec

third_party/WebKit/Source/modules/webauth/MakeCredentialOptions.idl

Index: third_party/WebKit/Source/modules/webauth/MakeCredentialOptions.idl
diff --git a/third_party/WebKit/Source/modules/webauth/MakeCredentialOptions.idl b/third_party/WebKit/Source/modules/webauth/MakeCredentialOptions.idl
new file mode 100644
index 0000000000000000000000000000000000000000..5da96228db3677f46ce4ac890896daf4cf46aa6b
--- /dev/null
+++ b/third_party/WebKit/Source/modules/webauth/MakeCredentialOptions.idl
@@ -0,0 +1,16 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// https://w3c.github.io/webauthn/#dictdef-makecredentialoptions
+
+dictionary MakeCredentialOptions {
+    required PublicKeyCredentialEntity rp;
+    required PublicKeyCredentialUserEntity user;
+    required BufferSource challenge;
+    required sequence<PublicKeyCredentialParameters> parameters;
+    unsigned long timeout;
+    sequence<PublicKeyCredentialDescriptor> excludeCredentials = [];
+    AuthenticatorSelectionCriteria authenticatorSelection;
+    // TODO(crbug.com/733033): Add extension support
+};