Added class BluetoothDeviceMac, returns mac device timing data

device/bluetooth/bluetooth_device_mac.mm

Index: device/bluetooth/bluetooth_device_mac.mm
diff --git a/device/bluetooth/bluetooth_device_mac.mm b/device/bluetooth/bluetooth_device_mac.mm
new file mode 100644
index 0000000000000000000000000000000000000000..dfd1bff0a45afb5d1395f74c70c6905866b49454
--- /dev/null
+++ b/device/bluetooth/bluetooth_device_mac.mm
@@ -0,0 +1,15 @@
+// Copyright 2015 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.
+
+#include "device/bluetooth/bluetooth_device_mac.h"
+
+namespace device {
+
+BluetoothDeviceMac::BluetoothDeviceMac() {
+}
+
+BluetoothDeviceMac::~BluetoothDeviceMac() {
+}
+
+}  // namespace device