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

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

Index: third_party/WebKit/Source/modules/nfc/NFCWatchOptions.idl
diff --git a/third_party/WebKit/Source/modules/nfc/NFCWatchOptions.idl b/third_party/WebKit/Source/modules/nfc/NFCWatchOptions.idl
new file mode 100644
index 0000000000000000000000000000000000000000..971497a05250db00b544305624b76746a974bc83
--- /dev/null
+++ b/third_party/WebKit/Source/modules/nfc/NFCWatchOptions.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/#idl-def-nfcwatchoptions
+
+enum NFCWatchMode { "web-nfc-only", "any" };
+
+[
+   RuntimeEnabled=WebNFC,
+] dictionary NFCWatchOptions {
+    USVString    url = "";
+    USVString    kind = "";
+    USVString    type = "";
+    NFCWatchMode mode = "web-nfc-only";
+};