|  | // 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 "content/browser/vr/vr_device.h" | 
|  | #include "content/browser/vr/vr_device_provider.h" | 
|  |  | 
|  | namespace content { | 
|  |  | 
|  | unsigned int VRDevice::next_id_ = 1; | 
|  |  | 
|  | VRDevice::VRDevice(VRDeviceProvider* provider) | 
|  | : provider_(provider), id_(next_id_) { | 
|  | // Prevent wraparound. Devices with this ID will be treated as invalid. | 
|  | if (next_id_ != VR_DEVICE_LAST_ID) | 
|  | next_id_++; | 
|  | } | 
|  |  | 
|  | VRDevice::~VRDevice() { | 
|  | } | 
|  |  | 
|  | }  // namespace content |