Implement the new basic card specification.

third_party/WebKit/Source/modules/payments/BasicCardRequest.idl

Index: third_party/WebKit/Source/modules/payments/BasicCardRequest.idl
diff --git a/third_party/WebKit/Source/modules/payments/BasicCardRequest.idl b/third_party/WebKit/Source/modules/payments/BasicCardRequest.idl
new file mode 100644
index 0000000000000000000000000000000000000000..9bd0aeb9b2b7a1a09b7d0dff8c7facf9cf4b05cf
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+++ b/third_party/WebKit/Source/modules/payments/BasicCardRequest.idl
@@ -0,0 +1,16 @@
+// Copyright 2016 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/webpayments-methods-card/#basiccardrequest
+
+enum BasicCardType {
+    "credit",
+    "debit",
+    "prepaid"
+};
+
+dictionary BasicCardRequest {
+    sequence<DOMString> supportedNetworks;
+    sequence<BasicCardType> supportedTypes;
+};