Refactored VRService interaction and added VRServiceClient

device/vr/vr_service_impl.cc

Index: device/vr/vr_service_impl.cc
diff --git a/device/vr/vr_service_impl.cc b/device/vr/vr_service_impl.cc
new file mode 100644
index 0000000000000000000000000000000000000000..ebb5bb021b1e250f5b991f4cf0359d0eddb5267a
--- /dev/null
+++ b/device/vr/vr_service_impl.cc
@@ -0,0 +1,68 @@
+// Copyright 2016 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/vr/vr_service_impl.h"
+
+#include <utility>
+
+#include "base/bind.h"
+#include "device/vr/vr_device.h"
+#include "device/vr/vr_device_manager.h"
+
+namespace device {
+
+VRServiceImpl::VRServiceImpl() {}
+
+VRServiceImpl::~VRServiceImpl() {
+  RemoveFromDeviceManager();
+}
+
+void VRServiceImpl::BindRequest(mojo::InterfaceRequest<VRService> request) {
+  VRServiceImpl* service = new VRServiceImpl();
+  service->Bind(std::move(request));
+}
+
+void VRServiceImpl::Bind(mojo::InterfaceRequest<VRService> request) {
+  binding_.reset(new mojo::Binding<VRService>(this, std::move(request)));
+  binding_->set_connection_error_handler(base::Bind(
+      &VRServiceImpl::RemoveFromDeviceManager, base::Unretained(this)));
+}
+
+void VRServiceImpl::RemoveFromDeviceManager() {
+  VRDeviceManager* device_manager = VRDeviceManager::GetInstance();
+  device_manager->RemoveService(this);
+}
+
+void VRServiceImpl::SetClient(VRServiceClientPtr client) {
+  DCHECK(!client_.get());
+
+  client_ = std::move(client);
+  VRDeviceManager* device_manager = VRDeviceManager::GetInstance();
+  device_manager->AddService(this);
+}
+
+void VRServiceImpl::GetDisplays(const GetDisplaysCallback& callback) {
+  VRDeviceManager* device_manager = VRDeviceManager::GetInstance();
+  callback.Run(device_manager->GetVRDevices());
+}
+
+void VRServiceImpl::GetPose(uint32_t index, const GetPoseCallback& callback) {
+  VRDeviceManager* device_manager = VRDeviceManager::GetInstance();
+  VRDevice* device = device_manager->GetDevice(index);
+
+  if (device) {
+    callback.Run(device->GetPose());
+  } else {
+    callback.Run(nullptr);
+  }
+}
+
+void VRServiceImpl::ResetPose(uint32_t index) {
+  VRDeviceManager* device_manager = VRDeviceManager::GetInstance();
+  VRDevice* device = device_manager->GetDevice(index);
+  if (device)
+    device->ResetPose();
+}
+
+}  // namespace device