[webnfc]: Step 1: Add NavigatorNfc, Nfc and Layout tests.

Source/modules/modules.gypi

 {
   'includes': [
     '../core/core_generated.gypi',
     'modules_generated.gypi',
   ],
   'variables': {
     # Experimental hooks for embedder to provide extra IDL and source files.
     #
     # Note: this is not a supported API. If you rely on this, you will be broken
     # from time to time as the code generator changes in backward incompatible
@@ skipping 124 matching lines @@
       'mediastream/RTCSessionDescriptionCallback.idl',
       'mediastream/RTCStatsCallback.idl',
       'mediastream/RTCStatsReport.idl',
       'mediastream/RTCStatsResponse.idl',
       'mediastream/SourceInfo.idl',
       'navigatorconnect/CrossOriginServiceWorkerClient.idl',
       'navigatorconnect/ServicePort.idl',
       'navigatorconnect/ServicePortConnectEvent.idl',
       'navigatorconnect/ServicePortCollection.idl',
       'netinfo/NetworkInformation.idl',
+      'nfc/Nfc.idl',
       'notifications/Notification.idl',
       'notifications/NotificationEvent.idl',
       'notifications/NotificationPermissionCallback.idl',
       'permissions/Permissions.idl',
       'permissions/PermissionStatus.idl',
       'plugins/MimeType.idl',
       'plugins/MimeTypeArray.idl',
       'plugins/Plugin.idl',
       'plugins/PluginArray.idl',
       'presentation/Presentation.idl',
@@ skipping 183 matching lines @@
       'mediasource/HTMLVideoElementMediaSource.idl',
       'mediasource/URLMediaSource.idl',
       'mediastream/NavigatorMediaStream.idl',
       'mediastream/NavigatorUserMedia.idl',
       'mediastream/URLMediaStream.idl',
       'mediastream/WindowMediaStream.idl',
       'navigatorconnect/NavigatorServices.idl',
       'navigatorconnect/ServiceWorkerGlobalScopeNavigatorConnect.idl',
       'navigatorconnect/WorkerNavigatorServices.idl',
       'navigatorcontentutils/NavigatorContentUtils.idl',
+      'nfc/NavigatorNfc.idl',
       'netinfo/NavigatorNetworkInformation.idl',
       'netinfo/WorkerNavigatorNetworkInformation.idl',
       'notifications/ServiceWorkerGlobalScopeNotifications.idl',
       'notifications/ServiceWorkerRegistrationNotifications.idl',
       'permissions/NavigatorPermissions.idl',
       'permissions/WorkerNavigatorPermissions.idl',
       'plugins/NavigatorPlugins.idl',
       'presentation/NavigatorPresentation.idl',
       'push_messaging/ServiceWorkerGlobalScopePush.idl',
       'push_messaging/ServiceWorkerRegistrationPush.idl',
@@ skipping 810 matching lines @@
       'navigatorconnect/WorkerNavigatorServices.h',
       'navigatorcontentutils/NavigatorContentUtils.cpp',
       'navigatorcontentutils/NavigatorContentUtils.h',
       'navigatorcontentutils/NavigatorContentUtilsClient.h',
       'netinfo/NavigatorNetworkInformation.cpp',
       'netinfo/NavigatorNetworkInformation.h',
       'netinfo/NetworkInformation.cpp',
       'netinfo/NetworkInformation.h',
       'netinfo/WorkerNavigatorNetworkInformation.cpp',
       'netinfo/WorkerNavigatorNetworkInformation.h',
+      'nfc/NavigatorNfc.cpp',
+      'nfc/NavigatorNfc.h',
+      'nfc/Nfc.cpp',
+      'nfc/Nfc.h',
       'notifications/Notification.cpp',
       'notifications/Notification.h',
       'notifications/NotificationData.cpp',
       'notifications/NotificationData.h',
       'notifications/NotificationEvent.cpp',
       'notifications/NotificationEvent.h',
       'notifications/NotificationPermissionCallback.h',
       'notifications/NotificationPermissionClient.cpp',
       'notifications/NotificationPermissionClient.h',
       'notifications/ServiceWorkerGlobalScopeNotifications.h',
@@ skipping 587 matching lines @@
       'webaudio/AudioBasicProcessorHandlerTest.cpp',
       'webaudio/ConvolverNodeTest.cpp',
       'webaudio/DynamicsCompressorNodeTest.cpp',
       'webaudio/ScriptProcessorNodeTest.cpp',
       'webaudio/StereoPannerNodeTest.cpp',
       'websockets/DOMWebSocketTest.cpp',
       'websockets/DocumentWebSocketChannelTest.cpp',
     ],
   },
 }