Reland of mojo VR interface simpified.

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/dom/ContextLifecycleObserver.h"
 #include "core/dom/Document.h"
 #include "device/vr/vr_service.mojom-blink.h"
 #include "modules/vr/VRDisplay.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Deque.h"
 
 #include <memory>
 
 namespace blink {
 
 class NavigatorVR;
 class VRGetDevicesCallback;
 
 class VRController final : public GarbageCollectedFinalized<VRController>,
-                           public device::blink::VRServiceClient,
+                           public device::mojom::blink::VRServiceClient,
                            public ContextLifecycleObserver {
   USING_GARBAGE_COLLECTED_MIXIN(VRController);
   WTF_MAKE_NONCOPYABLE(VRController);
+  USING_PRE_FINALIZER(VRController, dispose);
 
  public:
   VRController(NavigatorVR*);
   virtual ~VRController();
 
-  // VRService.
   void getDisplays(ScriptPromiseResolver*);
-  device::blink::VRPosePtr getPose(unsigned index);
-  void resetPose(unsigned index);
-  void requestPresent(ScriptPromiseResolver*,
-                      unsigned index,
-                      bool secureOrigin);
-  void exitPresent(unsigned index);
-  void submitFrame(unsigned index, device::blink::VRPosePtr);
-  void updateLayerBounds(unsigned index,
-                         device::blink::VRLayerBoundsPtr leftBounds,
-                         device::blink::VRLayerBoundsPtr rightBounds);
 
-  VRDisplay* createOrUpdateDisplay(const device::blink::VRDisplayPtr&);
-  VRDisplayVector updateDisplays(mojo::WTFArray<device::blink::VRDisplayPtr>);
-  VRDisplay* getDisplayForIndex(unsigned index);
+  void OnDisplayConnected(device::mojom::blink::VRDisplayPtr,
+                          device::mojom::blink::VRDisplayClientRequest,
+                          device::mojom::blink::VRDisplayInfoPtr) override;
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
-  // Binding callbacks.
-  void onGetDisplays(mojo::WTFArray<device::blink::VRDisplayPtr>);
-  void onPresentComplete(ScriptPromiseResolver*, unsigned index, bool success);
-
-  // VRServiceClient.
-  void OnDisplayChanged(device::blink::VRDisplayPtr) override;
-  void OnExitPresent(unsigned index) override;
-  void OnDisplayConnected(device::blink::VRDisplayPtr) override;
-  void OnDisplayDisconnected(unsigned) override;
+  void onDisplaysSynced(unsigned);
+  void onGetDisplays();
 
   // ContextLifecycleObserver.
   void contextDestroyed() override;
+  void dispose();
 
   Member<NavigatorVR> m_navigatorVR;
   VRDisplayVector m_displays;
 
+  bool m_displaySynced;
+  unsigned m_numberOfSyncedDisplays;
+
   Deque<std::unique_ptr<VRGetDevicesCallback>> m_pendingGetDevicesCallbacks;
-  device::blink::VRServicePtr m_service;
-  mojo::Binding<device::blink::VRServiceClient> m_binding;
+  device::mojom::blink::VRServicePtr m_service;
+  mojo::Binding<device::mojom::blink::VRServiceClient> m_binding;
 };
 
 }  // namespace blink
 
 #endif  // VRController_h