Enable OpenXR by default

Enables OpenXR as a default VR backend.

Change-Id: I620c01a7a674c32874a83d2551f4b1c94663b746
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2001581Reviewed-by: Alexander Cooper <alcooper@chromium.org>
Commit-Queue: Lachlan Ford <laford@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#736195}

chrome/common/chrome_features.cc

@@ -385,7 +385,7 @@ const base::Feature kWindowsMixedReality{"WindowsMixedReality",
 
 #if BUILDFLAG(ENABLE_OPENXR)
 // Controls OpenXR support.
-const base::Feature kOpenXR{"OpenXR", base::FEATURE_DISABLED_BY_DEFAULT};
+const base::Feature kOpenXR{"OpenXR", base::FEATURE_ENABLED_BY_DEFAULT};
 #endif  // ENABLE_OPENXR
 
 #endif  // BUILDFLAG(ENABLE_VR)