GitLab

Add trybot config for "Win10 Tests x64 1909". Need to test
rebaselining before promoting the win version

Bug: 990885,1125612
Change-Id: Id722ed9a8a841dabce21cd5694186a6cbe0fc281
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2397660Reviewed-by: Garrett Beaty <gbeaty@chromium.org>
Commit-Queue: Ian Struiksma <ianstruiksma@google.com>
Cr-Commit-Position: refs/heads/master@{#805028}