GitLab

Not used. Can use |GetKeyboardWindow| to do the same thing (check for
null).

TBR=yhanada@chromium.org

Bug: 845780
Change-Id: I4f104099e92032e25c1aec15c3b67850253ad3e8
Reviewed-on: https://chromium-review.googlesource.com/1124737Reviewed-by: Darren Shen <shend@chromium.org>
Reviewed-by: Yuichiro Hanada <yhanada@chromium.org>
Commit-Queue: Darren Shen <shend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#572472}