mojo VR interface simplified

device/vr/test/fake_vr_device_provider.h

Index: device/vr/test/fake_vr_device_provider.h
diff --git a/device/vr/test/fake_vr_device_provider.h b/device/vr/test/fake_vr_device_provider.h
index 29323f3e361a0f8cdb7984a9adda7c1517687938..576e0c137ede1cd0086a7b439b271a2e6164c8e1 100644
--- a/device/vr/test/fake_vr_device_provider.h
+++ b/device/vr/test/fake_vr_device_provider.h
@@ -22,8 +22,9 @@ class FakeVRDeviceProvider : public VRDeviceProvider {
   void RemoveDevice(VRDevice* device);
   bool IsInitialized() { return initialized_; }
 
-  void GetDevices(std::vector<VRDevice*>* devices) override;
-  void Initialize() override;
+  void GetDevices(std::vector<VRServiceImpl*>* clients,
+                  std::vector<VRDevice*>* devices) override;
+  void Initialize(std::vector<VRServiceImpl*>* clients) override;
 
  private:
   std::vector<VRDevice*> devices_;