mojo VR interface simplified

device/vr/android/gvr/gvr_device.h

Index: device/vr/android/gvr/gvr_device.h
diff --git a/device/vr/android/gvr/gvr_device.h b/device/vr/android/gvr/gvr_device.h
index 2f7baaa1fead43b188a6b15f419e36aedfc90e0b..4e8e7c12c0cd70711d09791490f6aea9b84f93f1 100644
--- a/device/vr/android/gvr/gvr_device.h
+++ b/device/vr/android/gvr/gvr_device.h
@@ -24,18 +24,24 @@ class GvrDevice : public VRDevice {
 
   // VRDevice
   VRDisplayPtr GetVRDevice() override;
-  VRPosePtr GetPose() override;
-  void ResetPose() override;
+  VRPosePtr GetPose(VRServiceImpl* service) override;
+  void ResetPose(VRServiceImpl* service) override;
 
-  bool RequestPresent(bool secure_origin) override;
-  void ExitPresent() override;
+  bool RequestPresent(VRServiceImpl* service, bool secure_origin) override;
+  void ExitPresent(VRServiceImpl* service) override;
 
-  void SubmitFrame(VRPosePtr pose) override;
-  void UpdateLayerBounds(VRLayerBoundsPtr leftBounds,
+  void SubmitFrame(VRServiceImpl* service, VRPosePtr pose) override;
+  void UpdateLayerBounds(VRServiceImpl* service,
+                         VRLayerBoundsPtr leftBounds,
                          VRLayerBoundsPtr rightBounds) override;
 
   void SetDelegate(GvrDelegate* delegate);
 
+  void OnDisplayChanged() override;
+  void OnExitPresent(VRServiceImpl* service) override;
+  void OnDisplayConnected() override;
+  void OnDisplayDisconnected() override;
+
  private:
   gvr::GvrApi* GetGvrApi();