mojo VR interface simplified

device/vr/vr_device.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 "device/vr/vr_device.h"
 #include "device/vr/vr_device_provider.h"
+#include "device/vr/vr_service_impl.h"
 
 namespace device {
 
 unsigned int VRDevice::next_id_ = 1;
 
 VRDevice::VRDevice(VRDeviceProvider* provider)
-    : provider_(provider), id_(next_id_) {
+    : presenting_service_(nullptr), 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() {}
 
-bool VRDevice::RequestPresent(bool secure_origin) {
+bool VRDevice::RequestPresent(VRServiceImpl* service, bool secure_origin) {
   return true;
 };
 
+void VRDevice::SetClient(std::vector<VRServiceImpl*>* clients) {
+  for (auto& service : *clients) {
+    display_clients_.insert(std::pair<VRServiceImpl*, VRDisplayClientPtr>(
+        service, service->GetDisplayClient()));
+  }
+}
+
+void VRDevice::RemoveService(VRServiceImpl* service) {
+  ExitPresent(service);
+  display_clients_.erase(service);
+}
+
+bool VRDevice::CheckAccessAllowed(VRServiceImpl* service) {
+  return (!presenting_service_ || presenting_service_ == service);
+}
+
+bool VRDevice::IsPresentingService(VRServiceImpl* service) {
+  return (presenting_service_ && presenting_service_ == service);
+}
+
+void VRDevice::RegisterDeviceClient(VRServiceImpl* service) {
+  VRDeviceClientPtr device_client = service->GetDeviceServicePtr(this);
+  if (device_client) {
+    DisplayClientMap::iterator it = display_clients_.find(service);
+    if (it != display_clients_.end())
+      it->second->RegisterDeviceClient(std::move(device_client));
+  }
+}
+
+void VRDevice::UpdateDisplayInfo(VRServiceImpl* service) {
+  DisplayClientMap::iterator it = display_clients_.find(service);
+  if (it != display_clients_.end())
+    it->second->UpdateDisplayInfo(GetVRDevice());
+}
+
 }  // namespace device