mojo VR interface simplified

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

Index: third_party/WebKit/Source/modules/vr/VRDisplay.h
diff --git a/third_party/WebKit/Source/modules/vr/VRDisplay.h b/third_party/WebKit/Source/modules/vr/VRDisplay.h
index ee60f0e7bd5f76cfb04bbab068ba2b329cd6f268..74fef1f03ff37a4790bd8c0319da266d3027db06 100644
--- a/third_party/WebKit/Source/modules/vr/VRDisplay.h
+++ b/third_party/WebKit/Source/modules/vr/VRDisplay.h
@@ -11,6 +11,7 @@
 #include "device/vr/vr_service.mojom-blink.h"
 #include "modules/vr/VRDisplayCapabilities.h"
 #include "modules/vr/VRLayer.h"
+#include "mojo/public/cpp/bindings/binding.h"
 #include "platform/Timer.h"
 #include "platform/heap/Handle.h"
 #include "public/platform/WebGraphicsContext3DProvider.h"
@@ -37,8 +38,10 @@ class WebGLRenderingContextBase;
 enum VREye { VREyeNone, VREyeLeft, VREyeRight };
 
 class VRDisplay final : public GarbageCollectedFinalized<VRDisplay>,
+                        public device::blink::VRDisplayService,
                         public ScriptWrappable {
   DEFINE_WRAPPERTYPEINFO();
+  USING_PRE_FINALIZER(VRDisplay, shutdownMessagePipe);
 
  public:
   ~VRDisplay();
@@ -62,6 +65,10 @@ class VRDisplay final : public GarbageCollectedFinalized<VRDisplay>,
   void setDepthNear(double value) { m_depthNear = value; }
   void setDepthFar(double value) { m_depthFar = value; }
 
+  void setService(device::blink::VRDeviceServicePtr service) {
+    m_service = std::move(service);
+  }
+
   VREyeParameters* getEyeParameters(const String&);
 
   int requestAnimationFrame(FrameRequestCallback*);
@@ -95,6 +102,14 @@ class VRDisplay final : public GarbageCollectedFinalized<VRDisplay>,
 
  private:
   void onFullscreenCheck(TimerBase*);
+  void RegisterDisplayService();
+  void onPresentComplete(ScriptPromiseResolver*, bool);
+
+  // VRDisplayService
+  void OnDisplayChanged(device::blink::VRDisplayPtr) override;
+  void OnExitPresent() override;
+  void OnDisplayConnected(device::blink::VRDisplayPtr) override;
+  void OnDisplayDisconnected() override;
 
   Member<NavigatorVR> m_navigatorVR;
   unsigned m_displayId;
@@ -112,9 +127,16 @@ class VRDisplay final : public GarbageCollectedFinalized<VRDisplay>,
   double m_depthNear;
   double m_depthFar;
 
+  // Help VRController shutdown message pipe.
+  void shutdownMessagePipe();
+
   Timer<VRDisplay> m_fullscreenCheckTimer;
   gpu::gles2::GLES2Interface* m_contextGL;
   Member<WebGLRenderingContextBase> m_renderingContext;
+
+  device::blink::VRDeviceServicePtr m_service;
+
+  mojo::Binding<device::blink::VRDisplayService> m_binding;
 };
 
 using VRDisplayVector = HeapVector<Member<VRDisplay>>;