Make sure the credential provider window is always on top.

Bug: 936587
Change-Id: I9cdf7d8eca4862aeaa6aebb6266b51aa0dfc6777
Reviewed-on: https://chromium-review.googlesource.com/c/1492045
Reviewed-by: Owen Min <zmin@chromium.org>
Commit-Queue: Roger Tawa <rogerta@chromium.org>
Cr-Commit-Position: refs/heads/master@{#636479}
1 file changed