bluetooth: Introduce Web Bluetooth mojom interface

third_party/WebKit/public/platform/modules/bluetooth/web_bluetooth.mojom

Index: third_party/WebKit/public/platform/modules/bluetooth/web_bluetooth.mojom
diff --git a/mojo/shell/background/tests/test.mojom b/third_party/WebKit/public/platform/modules/bluetooth/web_bluetooth.mojom
similarity index 57%
copy from mojo/shell/background/tests/test.mojom
copy to third_party/WebKit/public/platform/modules/bluetooth/web_bluetooth.mojom
index a021d707cab44c0de225c26f85f8d07474bdea89..6645ef8cf09075579691cc21c6164060d25af250 100644
--- a/mojo/shell/background/tests/test.mojom
+++ b/third_party/WebKit/public/platform/modules/bluetooth/web_bluetooth.mojom
@@ -1,9 +1,11 @@
 // Copyright 2016 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.
+module blink.mojom;
 
-module mojo.shell.mojom;
-
-interface TestService {
-  Test() => ();
+enum WebBluetoothError {
+  SUCCESS
 };
+
+// TODO(ortuno): Define Bluetooth Service.
+// https://crbug.com/508771