mojo VR interface simplified

device/vr/vr_service_impl.h

 // 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.
 
 #ifndef DEVICE_VR_VR_SERVICE_IMPL_H
 #define DEVICE_VR_VR_SERVICE_IMPL_H
 
 #include <memory>
 
 #include "base/macros.h"
 
+#include "device/vr/vr_device.h"
+#include "device/vr/vr_device_service_impl.h"
 #include "device/vr/vr_export.h"
 #include "device/vr/vr_service.mojom.h"
 #include "mojo/public/cpp/bindings/binding.h"
 
 namespace device {
 
 class VRServiceImpl : public VRService {
  public:
   DEVICE_VR_EXPORT ~VRServiceImpl() override;
 
   DEVICE_VR_EXPORT static void BindRequest(
       mojo::InterfaceRequest<VRService> request);
 
-  VRServiceClientPtr& client() { return client_; }
+  VRDeviceServicePtr GetDeviceServicePtr(VRDevice* device);
 
  private:
   friend class VRServiceTestBinding;
+  friend class VRDeviceServiceImpl;
 
   DEVICE_VR_EXPORT VRServiceImpl();
 
   // Mojo connection handling.
   DEVICE_VR_EXPORT void Bind(mojo::InterfaceRequest<VRService> request);
   void RemoveFromDeviceManager();
+  void RemoveDeviceServiceImpl(VRDevice* device);
 
   // mojom::VRService implementation
-  void SetClient(VRServiceClientPtr client) override;
   void GetDisplays(const GetDisplaysCallback& callback) override;
-  void GetPose(uint32_t index, const GetPoseCallback& callback) override;
-  void ResetPose(uint32_t index) override;
 
-  void RequestPresent(uint32_t index,
-                      bool secureOrigin,
-                      const RequestPresentCallback& callback) override;
-  void ExitPresent(uint32_t index) override;
-  void SubmitFrame(uint32_t index, VRPosePtr pose) override;
-  void UpdateLayerBounds(uint32_t index,
-                         VRLayerBoundsPtr leftBounds,
-                         VRLayerBoundsPtr rightBounds) override;
+  using DeviceServiceMap =
+      std::map<VRDevice*, std::unique_ptr<VRDeviceServiceImpl>>;
+  DeviceServiceMap device_service_impl_;
+
+  using DeviceServicePtrMap = std::map<VRDevice*, VRDeviceServicePtr>;
+  DeviceServicePtrMap device_services_;
 
   std::unique_ptr<mojo::Binding<VRService>> binding_;
-  VRServiceClientPtr client_;
 
   DISALLOW_COPY_AND_ASSIGN(VRServiceImpl);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_VR_VR_SERVICE_IMPL_H