Blink-layer update to match WebAuthN spec

third_party/WebKit/Source/modules/webauth/AuthenticatorResponse.cpp

+// 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.
+
+#include "modules/webauth/AuthenticatorResponse.h"
+
+namespace blink {
+
+AuthenticatorResponse* AuthenticatorResponse::Create(
+    DOMArrayBuffer* client_data_json) {
+  return new AuthenticatorResponse(client_data_json);
+}
+
+AuthenticatorResponse::AuthenticatorResponse(DOMArrayBuffer* client_data_json)
+    : client_data_json_(client_data_json) {}
+
+AuthenticatorResponse::~AuthenticatorResponse() {}
+
+DEFINE_TRACE(AuthenticatorResponse) {
+  visitor->Trace(client_data_json_);
+}
+
+}  // namespace blink