Disable StartupBrowserCreatorWelcomeBackTest.WelcomeBackStandardNoPolicy on Linux

Tbr: tmartino
Bug: 863743
Change-Id: I732c8f932cdc9be220b35c8d78f19bbc54e44dcb
Reviewed-on: https://chromium-review.googlesource.com/1138406
Reviewed-by: Owen Min <zmin@chromium.org>
Commit-Queue: Owen Min <zmin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#575293}
1 file changed