[Do Not Commit] Migrate vr service from content/renderer/ to WebKit/platform/

third_party/WebKit/Source/modules/vr/VRController.h

 // 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.
 
 #ifndef VRController_h
 #define VRController_h
 
 #include "core/frame/LocalFrameLifecycleObserver.h"
 #include "modules/ModulesExport.h"
 #include "platform/Supplementable.h"
+#include "public/platform/WebCallbacks.h"
+#include "public/platform/WebVector.h"
 #include "public/platform/modules/vr/WebVR.h"
-#include "public/platform/modules/vr/WebVRClient.h"
+#include "public/platform/modules/vr/vr_service.mojom-wtf.h"
+#include "wtf/Vector.h"
 
 namespace blink {
 
+class ServiceRegistry;
+
+// Success and failure callbacks for getDevices.
+using WebVRGetDevicesCallback = WebCallbacks<const WebVector<WebVRDevice>&, void>;
+
 class MODULES_EXPORT VRController final
     : public GarbageCollectedFinalized<VRController>
     , public Supplement<LocalFrame>
     , public LocalFrameLifecycleObserver {
     USING_GARBAGE_COLLECTED_MIXIN(VRController);
     WTF_MAKE_NONCOPYABLE(VRController);
 public:
     virtual ~VRController();
 
     void getDevices(WebVRGetDevicesCallback*);
 
-    void getSensorState(unsigned index, WebHMDSensorState& into);
+    void getSensorState(unsigned index, WebHMDSensorState* into);
 
     void resetSensor(unsigned index);
 
-    static void provideTo(LocalFrame&, WebVRClient*);
+    static void provideTo(LocalFrame&, ServiceRegistry*);
     static VRController* from(LocalFrame&);
     static const char* supplementName();
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
-    VRController(LocalFrame&, WebVRClient*);
+    VRController(LocalFrame&, ServiceRegistry*);
+
+    mojom::wtf::VRServicePtr& service();
+
+    // Callback handlers
+    void OnGetDevices(const mojo::WTFArray<mojom::wtf::VRDeviceInfoPtr>& devices);
+    void OnGetSensorState(const mojom::wtf::VRSensorStatePtr& mojoState);
 
     // Inherited from LocalFrameLifecycleObserver.
     void willDetachFrameHost() override;
 
-    WebVRClient* m_client;
+    ServiceRegistry* m_registry;
+    mojom::wtf::VRServicePtr m_service;
+    WebHMDSensorState* m_pendingState;
+    Vector<OwnPtr<WebVRGetDevicesCallback>> m_pendingDeviceRequests;
 };
 
 } // namespace blink
 
 #endif // VRController_h