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/mash/init/public/interfaces/login.mojom b/third_party/WebKit/public/platform/modules/bluetooth/web_bluetooth.mojom
similarity index 57%
copy from mash/init/public/interfaces/login.mojom
copy to third_party/WebKit/public/platform/modules/bluetooth/web_bluetooth.mojom
index 8c99e47c606a845e0c64d2383cad7fd73f8b80ea..6645ef8cf09075579691cc21c6164060d25af250 100644
--- a/mash/init/public/interfaces/login.mojom
+++ b/third_party/WebKit/public/platform/modules/bluetooth/web_bluetooth.mojom
@@ -1,10 +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 mash.init.mojom;
-
-interface Login {
-  LoginAs(string user_id);
+enum WebBluetoothError {
+  SUCCESS
 };
 
+// TODO(ortuno): Define Bluetooth Service.
+// https://crbug.com/508771