Add jacde to WebXR-related OWNERS files.

Change-Id: I158bbc20c0b0eea748d1200b4709d48d1355fe80
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1739667Reviewed-by: Brandon Jones <bajones@chromium.org>
Reviewed-by: Klaus Weidner <klausw@chromium.org>
Reviewed-by: Alexander Cooper <alcooper@chromium.org>
Commit-Queue: Jacob DeWitt <jacde@chromium.org>
Cr-Commit-Position: refs/heads/master@{#684448}

chrome/browser/vr/OWNERS

@@ -9,6 +9,7 @@ klausw@chromium.org
 # Browser Test-related.
 alcooper@chromium.org
 bsheedy@chromium.org
+jacde@chromium.org
 
 # TEAM: xr-dev@chromium.org
 # COMPONENT: UI>Browser>VR

device/vr/OWNERS

 alcooper@chromium.org
 bajones@chromium.org
 bialpio@chromium.org
+jacde@chromium.org
 
 per-file *.mojom=set noparent
 per-file *.mojom=file://ipc/SECURITY_OWNERS

third_party/blink/renderer/modules/xr/OWNERS

 alcooper@chromium.org
 bajones@chromium.org
+jacde@chromium.org
 klausw@chromium.org
 
 # TEAM: xr-dev@chromium.org

third_party/webxr_test_pages/OWNERS

 alcooper@chromium.org
 bajones@chromium.org
 bialpio@chromium.org
+jacde@chromium.org
 klausw@chromium.org
 
 # TEAM: xr-dev@chromium.org