Fix WebXR Local-Floor Wrong Initial Position Using OpenXR

Reverse the order of xrlocatespace so we can get the correct transform
from local to stage

Bug: 1000808
Change-Id: Ie6aa7b644ea2c6b730a17e5544995051d5f471cf
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1816291Reviewed-by: Alexander Cooper <alcooper@chromium.org>
Commit-Queue: Zheng Qin <zheqi@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#699036}

device/vr/openxr/openxr_api_wrapper.cc

@@ -683,7 +683,7 @@ bool OpenXrApiWrapper::GetStageParameters(XrExtent2Df* stage_bounds,
     return false;
 
   XrSpaceLocation location = {XR_TYPE_SPACE_LOCATION};
-  if (FAILED(xrLocateSpace(stage_space_, local_space_,
+  if (FAILED(xrLocateSpace(local_space_, stage_space_,
                            frame_state_.predictedDisplayTime, &location)) ||
       !(location.locationFlags & XR_SPACE_LOCATION_ORIENTATION_VALID_BIT) ||
       !(location.locationFlags & XR_SPACE_LOCATION_POSITION_VALID_BIT)) {