[webnfc] Step 2. Add IDL stubs for NFCRecord, NFCPushOptions, NFCWatchOptions

third_party/WebKit/Source/modules/nfc/NFCRecord.idl

Index: third_party/WebKit/Source/modules/nfc/NFCRecord.idl
diff --git a/third_party/WebKit/Source/modules/nfc/NFCRecord.idl b/third_party/WebKit/Source/modules/nfc/NFCRecord.idl
new file mode 100644
index 0000000000000000000000000000000000000000..e3576b28967665212fcedfc0841f51082f5217db
--- /dev/null
+++ b/third_party/WebKit/Source/modules/nfc/NFCRecord.idl
@@ -0,0 +1,16 @@
+// Copyright 2015 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/web-nfc/index.html#the-nfcrecord-dictionary
+
+enum NFCRecordType { "empty", "text", "url", "json", "opaque" };
+
+[
+   RuntimeEnabled=WebNFC,
+] dictionary NFCRecord {
+    NFCRecordType kind;  // based on TNF + JSON.

[Peter Beverloo, 2015/10/13 11:19:58]

micro nit: comments such as this make the code a bit convoluted - one can read
the spec for this (and has to anyway, because I have no idea what TNF means).

+    USVString type;  // IANA media type, with parameters.
+    // TODO(riju_): https://crbug.com/537133

[Peter Beverloo, 2015/10/13 11:19:58]

nit: Could you please include a textual description with TODOs? The bug should
be referred for additional context, but it should be understandable without
following it.

+    any data;  // null, string (text, url), Object (json), ArrayBuffer.
+};