Add Views Desktop Platform Team to //ui/views/OWNERS

BUG=

Change-Id: I9520dc6a6932f41be7a57428d2c96550e30738f4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1653901
Commit-Queue: Robert Liao <robliao@chromium.org>
Auto-Submit: Robert Liao <robliao@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#668551}

ui/views/OWNERS

 # Prefer tapted@ for mac specific changes.
 
+kylixrd@chromium.org
 msw@chromium.org
 pkasting@chromium.org
+robliao@chromium.org
 sadrul@chromium.org
 sky@chromium.org
 tapted@chromium.org
+weili@chromium.org
 
 # Prefer ellyjones@ for any changes to these files.
 per-file *_mac.*=ellyjones@chromium.org