Plumbing through more WebVR presentation code

device/vr/vr_service_impl.h

Index: device/vr/vr_service_impl.h
diff --git a/device/vr/vr_service_impl.h b/device/vr/vr_service_impl.h
index c31abe0ad472c5445f7977de9f3b76d0125370ad..a5c96ea0ab393ef70270af484d240a8e9bbe8e5f 100644
--- a/device/vr/vr_service_impl.h
+++ b/device/vr/vr_service_impl.h
@@ -39,6 +39,13 @@ class VRServiceImpl : public VRService {
   void GetPose(uint32_t index, const GetPoseCallback& callback) override;
   void ResetPose(uint32_t index) override;
 
+  void RequestPresent(uint32_t index) override;
+  void ExitPresent(uint32_t index) override;
+  void SubmitFrame(uint32_t index) override;
+  void UpdateLayerBounds(uint32_t index,
+                         VRLayerBoundsPtr leftBounds,
+                         VRLayerBoundsPtr rightBounds) override;
+
   std::unique_ptr<mojo::Binding<VRService>> binding_;
   VRServiceClientPtr client_;