bluetooth: Extend navigator.bluetooth IDL to include Bluetooth interface.

Source/modules/bluetooth/Bluetooth.idl

Index: Source/modules/bluetooth/Bluetooth.idl
diff --git a/Source/modules/geofencing/GeofencingRegion.idl b/Source/modules/bluetooth/Bluetooth.idl
similarity index 52%
copy from Source/modules/geofencing/GeofencingRegion.idl
copy to Source/modules/bluetooth/Bluetooth.idl
index 4e22058d98b22fb2f0a7d196263ea4b9a458feab..45ef93185fd1caf2b5ccbb43e4f06795dbbe8359 100644
--- a/Source/modules/geofencing/GeofencingRegion.idl
+++ b/Source/modules/bluetooth/Bluetooth.idl
@@ -2,10 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+// https://webbluetoothcg.github.io/web-bluetooth/#idl-def-Bluetooth
+
 [
-    RuntimeEnabled=Geofencing,
-    NoInterfaceObject,
     GarbageCollected,
-] interface GeofencingRegion {
-    readonly attribute DOMString id;
+    NoInterfaceObject,
+    RuntimeEnabled=Bluetooth,
+] interface Bluetooth {
 };
+
+// http://crbug.com/420284
+// Bluetooth implements BluetoothDiscovery;