mojo VR interface simplified

device/vr/android/gvr/gvr_device_provider.h

Index: device/vr/android/gvr/gvr_device_provider.h
diff --git a/device/vr/android/gvr/gvr_device_provider.h b/device/vr/android/gvr/gvr_device_provider.h
index bb64966750e0d058b90ce98ad88f891bf0d5a7f2..a3422b4617ee8e9aa13565f8c5850bd0f2a581b3 100644
--- a/device/vr/android/gvr/gvr_device_provider.h
+++ b/device/vr/android/gvr/gvr_device_provider.h
@@ -9,7 +9,6 @@
 
 #include "base/macros.h"
 #include "base/single_thread_task_runner.h"
-#include "device/vr/vr_client_dispatcher.h"
 #include "device/vr/vr_device.h"
 #include "device/vr/vr_device_provider.h"
 #include "device/vr/vr_export.h"
@@ -36,13 +35,10 @@ class DEVICE_VR_EXPORT GvrDeviceProvider : public VRDeviceProvider {
   void OnGvrDelegateReady(GvrDelegate* delegate);
   void OnGvrDelegateRemoved();
 
-  void SetClient(VRClientDispatcher* client) override;
-
  private:
   void GvrDelegateReady(GvrDelegate* delegate);
   void GvrDelegateRemoved();
 
-  std::unique_ptr<VRClientDispatcher> client_;
   std::unique_ptr<GvrDevice> vr_device_;
 
   scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner_;