GitLab

WebXR AR DOM overlay mode no longer needs the local frame view's
background color to be changed, this is now handled by CSS for the
:xr-overlay pseudoclass. Remove this code to avoid potential
complications such as incorrect background color restoration.

Bug: 1149708
Change-Id: I130842a80eff6d56f58590c8611b2c5e5f7f2878
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2543484Reviewed-by: Piotr Bialecki <bialpio@chromium.org>
Commit-Queue: Klaus Weidner <klausw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#828271}