[webnfc] Introduce NFC mojo service.

device/nfc/nfc.gyp

 # Copyright 2013 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 32 matching lines @@
       'conditions': [
         ['chromeos==1', {
           'dependencies': [
             '../../build/linux/system.gyp:dbus',
             '../../chromeos/chromeos.gyp:chromeos',
             '../../dbus/dbus.gyp:dbus',
           ]
         }],
       ],
     },
+    {
+      'target_name': 'device_nfc_mojo_bindings',
+      'type': 'static_library',
+      'includes': [
+        '../../third_party/mojo/mojom_bindings_generator.gypi',
+      ],
+      'sources': [
+        'nfc.mojom',
+      ],
+    },
   ],
 }