diff -r 000000000000 -r 6474c204b198 dom/bluetooth/BluetoothSocketObserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/bluetooth/BluetoothSocketObserver.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,48 @@
+/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_bluetooth_BluetoothSocketObserver_h
+#define mozilla_dom_bluetooth_BluetoothSocketObserver_h
+
+#include "BluetoothCommon.h"
+#include "mozilla/ipc/UnixSocket.h"
+
+BEGIN_BLUETOOTH_NAMESPACE
+
+class BluetoothSocket;
+
+class BluetoothSocketObserver
+{
+public:
+  virtual void ReceiveSocketData(
+    BluetoothSocket* aSocket,
+    nsAutoPtr<mozilla::ipc::UnixSocketRawData>& aMessage) = 0;
+
+   /**
+    * A callback function which would be called when a socket connection
+    * is established successfully. To be more specific, this would be called
+    * when socket state changes from CONNECTING/LISTENING to CONNECTED.
+    */
+  virtual void OnSocketConnectSuccess(BluetoothSocket* aSocket) = 0;
+
+   /**
+    * A callback function which would be called when BluetoothSocket::Connect()
+    * fails.
+    */
+  virtual void OnSocketConnectError(BluetoothSocket* aSocket) = 0;
+
+   /**
+    * A callback function which would be called when a socket connection
+    * is dropped. To be more specific, this would be called when socket state
+    * changes from CONNECTED/LISTENING to DISCONNECTED.
+    */
+  virtual void OnSocketDisconnect(BluetoothSocket* aSocket) = 0;
+
+};
+
+END_BLUETOOTH_NAMESPACE
+
+#endif