diff -r 000000000000 -r 6474c204b198 dom/bluetooth/bluedroid/hfp-fallback/BluetoothHfpManager.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/bluetooth/bluedroid/hfp-fallback/BluetoothHfpManager.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,45 @@
+/* -*- 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_bluetoothhfpmanager_h__
+#define mozilla_dom_bluetooth_bluetoothhfpmanager_h__
+
+#include "BluetoothHfpManagerBase.h"
+
+/**
+ * Fallback BluetoothHfpManager is built for non-phone devices (e.g., tablets).
+ * These devices has no radio interface and the build flag MOZ_B2G_RIL is
+ * disabled. To prevent build breaks of accessing radio interface, we implement
+ * fallback BluetoothHfpManager with empty functions to keep original
+ * BluetoothHfpManager away from numerous #ifdef/#endif statements.
+ */
+
+BEGIN_BLUETOOTH_NAMESPACE
+
+class BluetoothHfpManager : public BluetoothHfpManagerBase
+{
+public:
+  BT_DECL_HFP_MGR_BASE
+  virtual void GetName(nsACString& aName)
+  {
+    aName.AssignLiteral("Fallback HFP/HSP");
+  }
+
+  static BluetoothHfpManager* Get();
+  virtual ~BluetoothHfpManager() { }
+
+  bool ConnectSco();
+  bool DisconnectSco();
+
+private:
+  BluetoothHfpManager() { }
+  bool Init();
+  void HandleShutdown();
+};
+
+END_BLUETOOTH_NAMESPACE
+
+#endif