Adding Chrome-side WebVR interface

content/browser/vr/vr_service_impl.cc

+// 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_service_impl.h"
+
+#include "base/location.h"
+#include "content/browser/vr/vr_device_manager.h"
+
+namespace content {
+
+void VRServiceImpl::Create(mojo::InterfaceRequest<VRService> request) {
+  VRServiceImpl* service = new VRServiceImpl();
+  mojo::BindToRequest(service, &request);
+}
+
+VRServiceImpl::VRServiceImpl() : registered_with_device_manager_(false) {
+}
+
+VRServiceImpl::~VRServiceImpl() {
+  if (registered_with_device_manager_) {
+    VRDeviceManager::RemoveService(this);
+  }
+}
+
+VRDeviceManager* VRServiceImpl::GetDeviceManager() {
+  if (!registered_with_device_manager_) {
+    VRDeviceManager::AddService(this);
+    registered_with_device_manager_ = true;
+  }
+  return VRDeviceManager::GetInstance();
+}
+
+void VRServiceImpl::GetDevices(const GetDevicesCallback& callback) {
+  callback.Run(GetDeviceManager()->GetVRDevices());
+}
+
+void VRServiceImpl::GetSensorState(uint32_t index,
+                                     const GetSensorStateCallback& callback) {
+  VRDevice* device = GetDeviceManager()->GetDevice(index);
+  if (device) {
+    callback.Run(device->GetSensorState());
+  } else {
+    callback.Run(nullptr);
+  }
+}
+
+void VRServiceImpl::ResetSensor(uint32_t index) {
+  VRDevice* device = GetDeviceManager()->GetDevice(index);
+  if (device)
+    device->ResetSensor();
+}
+
+}  // namespace content