Remove Sync GetPose VRService call, implement VRVSyncProvider

device/vr/vr_display_impl.cc

Index: device/vr/vr_display_impl.cc
diff --git a/device/vr/vr_display_impl.cc b/device/vr/vr_display_impl.cc
index b4025dd80af2b7b757cea111322fed066f377f50..9f912056eda18ca8efa4e945af9f98ff052b099c 100644
--- a/device/vr/vr_display_impl.cc
+++ b/device/vr/vr_display_impl.cc
@@ -27,15 +27,6 @@ VRDisplayImpl::~VRDisplayImpl() {
   device_->RemoveDisplay(this);
 }
 
-void VRDisplayImpl::GetPose(const GetPoseCallback& callback) {
-  if (!device_->IsAccessAllowed(this)) {
-    callback.Run(nullptr);
-    return;
-  }
-
-  callback.Run(device_->GetPose());
-}
-
 void VRDisplayImpl::ResetPose() {
   if (!device_->IsAccessAllowed(this))
     return;