Read poses relative to the seated zero pose for OpenVR

device/vr/openvr/openvr_device.cc

Index: device/vr/openvr/openvr_device.cc
diff --git a/device/vr/openvr/openvr_device.cc b/device/vr/openvr/openvr_device.cc
index f129d977e0a77510ee14f763cf9f171dcea8b523..9d81cd0c9bad8d35aa768bb65910d27ab42cb515 100644
--- a/device/vr/openvr/openvr_device.cc
+++ b/device/vr/openvr/openvr_device.cc
@@ -216,7 +216,7 @@ device::mojom::VRPosePtr OpenVRDevice::OpenVRRenderLoop::getPose() {
   vr::TrackedDevicePose_t poses[vr::k_unMaxTrackedDeviceCount];
 
   vr_system_->GetDeviceToAbsoluteTrackingPose(
-      vr::TrackingUniverseStanding, 0.0f, poses, vr::k_unMaxTrackedDeviceCount);
+      vr::TrackingUniverseSeated, 0.0f, poses, vr::k_unMaxTrackedDeviceCount);
   const auto& hmdPose = poses[vr::k_unTrackedDeviceIndex_Hmd];
   if (hmdPose.bPoseIsValid && hmdPose.bDeviceIsConnected) {
     const auto& transform = hmdPose.mDeviceToAbsoluteTracking;