diff --git a/dom/bluetooth/BluetoothInterfaceHelpers.cpp b/dom/bluetooth/BluetoothInterfaceHelpers.cpp
deleted file mode 100644
index 03e0c6d3c9a0..000000000000
--- a/dom/bluetooth/BluetoothInterfaceHelpers.cpp
+++ /dev/null
@@ -1,28 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=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/. */
-
-#include "BluetoothInterfaceHelpers.h"
-
-BEGIN_BLUETOOTH_NAMESPACE
-
-//
-// Conversion
-//
-
-nsresult
-Convert(nsresult aIn, BluetoothStatus& aOut)
-{
-  if (NS_SUCCEEDED(aIn)) {
-    aOut = STATUS_SUCCESS;
-  } else if (aIn == NS_ERROR_OUT_OF_MEMORY) {
-    aOut = STATUS_NOMEM;
-  } else {
-    aOut = STATUS_FAIL;
-  }
-  return NS_OK;
-}
-
-END_BLUETOOTH_NAMESPACE
diff --git a/dom/bluetooth/BluetoothInterfaceHelpers.h b/dom/bluetooth/BluetoothInterfaceHelpers.h
deleted file mode 100644
index 0c32f60667b4..000000000000
--- a/dom/bluetooth/BluetoothInterfaceHelpers.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=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_bluetoothinterfacehelpers_h
-#define mozilla_dom_bluetooth_bluetoothinterfacehelpers_h
-
-#include "BluetoothCommon.h"
-
-BEGIN_BLUETOOTH_NAMESPACE
-
-//
-// Conversion
-//
-
-nsresult
-Convert(nsresult aIn, BluetoothStatus& aOut);
-
-END_BLUETOOTH_NAMESPACE
-
-#endif
diff --git a/dom/bluetooth/bluedroid/BluetoothDaemonA2dpInterface.h b/dom/bluetooth/bluedroid/BluetoothDaemonA2dpInterface.h
index cfc5a2d191df..2c42981a2770 100644
--- a/dom/bluetooth/bluedroid/BluetoothDaemonA2dpInterface.h
+++ b/dom/bluetooth/bluedroid/BluetoothDaemonA2dpInterface.h
@@ -9,7 +9,6 @@
 
 #include "BluetoothDaemonHelpers.h"
 #include "BluetoothInterface.h"
-#include "BluetoothInterfaceHelpers.h"
 #include "mozilla/ipc/DaemonRunnables.h"
 
 BEGIN_BLUETOOTH_NAMESPACE
diff --git a/dom/bluetooth/bluedroid/BluetoothDaemonAvrcpInterface.h b/dom/bluetooth/bluedroid/BluetoothDaemonAvrcpInterface.h
index 5b4c3a452f47..c906503256e9 100644
--- a/dom/bluetooth/bluedroid/BluetoothDaemonAvrcpInterface.h
+++ b/dom/bluetooth/bluedroid/BluetoothDaemonAvrcpInterface.h
@@ -9,7 +9,6 @@
 
 #include "BluetoothDaemonHelpers.h"
 #include "BluetoothInterface.h"
-#include "BluetoothInterfaceHelpers.h"
 #include "mozilla/ipc/DaemonRunnables.h"
 
 BEGIN_BLUETOOTH_NAMESPACE
diff --git a/dom/bluetooth/bluedroid/BluetoothDaemonGattInterface.h b/dom/bluetooth/bluedroid/BluetoothDaemonGattInterface.h
index 44184ffc4d55..0998032e13cb 100644
--- a/dom/bluetooth/bluedroid/BluetoothDaemonGattInterface.h
+++ b/dom/bluetooth/bluedroid/BluetoothDaemonGattInterface.h
@@ -9,7 +9,6 @@
 
 #include "BluetoothDaemonHelpers.h"
 #include "BluetoothInterface.h"
-#include "BluetoothInterfaceHelpers.h"
 #include "mozilla/ipc/DaemonRunnables.h"
 
 BEGIN_BLUETOOTH_NAMESPACE
diff --git a/dom/bluetooth/bluedroid/BluetoothDaemonHandsfreeInterface.h b/dom/bluetooth/bluedroid/BluetoothDaemonHandsfreeInterface.h
index 7c4f6244c543..9c62314db16e 100644
--- a/dom/bluetooth/bluedroid/BluetoothDaemonHandsfreeInterface.h
+++ b/dom/bluetooth/bluedroid/BluetoothDaemonHandsfreeInterface.h
@@ -9,7 +9,6 @@
 
 #include "BluetoothDaemonHelpers.h"
 #include "BluetoothInterface.h"
-#include "BluetoothInterfaceHelpers.h"
 #include "mozilla/ipc/DaemonRunnables.h"
 
 BEGIN_BLUETOOTH_NAMESPACE
diff --git a/dom/bluetooth/bluedroid/BluetoothDaemonHelpers.cpp b/dom/bluetooth/bluedroid/BluetoothDaemonHelpers.cpp
index 93f6afac2566..0403e3529361 100644
--- a/dom/bluetooth/bluedroid/BluetoothDaemonHelpers.cpp
+++ b/dom/bluetooth/bluedroid/BluetoothDaemonHelpers.cpp
@@ -524,6 +524,19 @@ Convert(const nsAString& aIn, BluetoothServiceName& aOut)
   return NS_OK;
 }
 
+nsresult
+Convert(nsresult aIn, BluetoothStatus& aOut)
+{
+  if (NS_SUCCEEDED(aIn)) {
+    aOut = STATUS_SUCCESS;
+  } else if (aIn == NS_ERROR_OUT_OF_MEMORY) {
+    aOut = STATUS_NOMEM;
+  } else {
+    aOut = STATUS_FAIL;
+  }
+  return NS_OK;
+}
+
 nsresult
 Convert(BluetoothAclState aIn, bool& aOut)
 {
diff --git a/dom/bluetooth/bluedroid/BluetoothDaemonHelpers.h b/dom/bluetooth/bluedroid/BluetoothDaemonHelpers.h
index 84c59f3a5712..32de4709bf70 100644
--- a/dom/bluetooth/bluedroid/BluetoothDaemonHelpers.h
+++ b/dom/bluetooth/bluedroid/BluetoothDaemonHelpers.h
@@ -288,6 +288,9 @@ Convert(BluetoothGattAuthReq aIn, int32_t& aOut);
 nsresult
 Convert(BluetoothGattWriteType aIn, int32_t& aOut);
 
+nsresult
+Convert(nsresult aIn, BluetoothStatus& aOut);
+
 //
 // Packing
 //
diff --git a/dom/bluetooth/bluedroid/BluetoothDaemonInterface.cpp b/dom/bluetooth/bluedroid/BluetoothDaemonInterface.cpp
index e01ed1a88753..3297b1aa97e9 100644
--- a/dom/bluetooth/bluedroid/BluetoothDaemonInterface.cpp
+++ b/dom/bluetooth/bluedroid/BluetoothDaemonInterface.cpp
@@ -16,7 +16,6 @@
 #include "BluetoothDaemonHelpers.h"
 #include "BluetoothDaemonSetupInterface.h"
 #include "BluetoothDaemonSocketInterface.h"
-#include "BluetoothInterfaceHelpers.h"
 #include "mozilla/ipc/DaemonRunnables.h"
 #include "mozilla/ipc/DaemonSocket.h"
 #include "mozilla/ipc/ListenSocket.h"
diff --git a/dom/bluetooth/bluedroid/BluetoothDaemonSocketInterface.h b/dom/bluetooth/bluedroid/BluetoothDaemonSocketInterface.h
index e99d2807f5d9..144c2c0beed5 100644
--- a/dom/bluetooth/bluedroid/BluetoothDaemonSocketInterface.h
+++ b/dom/bluetooth/bluedroid/BluetoothDaemonSocketInterface.h
@@ -9,7 +9,6 @@
 
 #include "BluetoothDaemonHelpers.h"
 #include "BluetoothInterface.h"
-#include "BluetoothInterfaceHelpers.h"
 #include "mozilla/ipc/DaemonRunnables.h"
 
 BEGIN_BLUETOOTH_NAMESPACE
diff --git a/dom/bluetooth/moz.build b/dom/bluetooth/moz.build
index d1e1de12bc30..49a1b1e713a7 100644
--- a/dom/bluetooth/moz.build
+++ b/dom/bluetooth/moz.build
@@ -13,7 +13,6 @@ if CONFIG['MOZ_B2G_BT']:
     SOURCES += [
         'BluetoothHidManager.cpp',
         'BluetoothInterface.cpp',
-        'BluetoothInterfaceHelpers.cpp',
         'BluetoothUtils.cpp',
         'BluetoothUuid.cpp',
         'ObexBase.cpp'