GitLab

As |chrome::ShowWarningMessageBoxWithCheckbox| accepts
|base::OnceCallback| as its last parameter, the call site should use
|base::BindOnce|.

Bug: 1007635
Change-Id: I5e437d37ba1573cf552a2a51916a2e34831ffe32
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2522212Reviewed-by: Avi Drissman <avi@chromium.org>
Commit-Queue: Charlie Hu <chenleihu@google.com>
Cr-Commit-Position: refs/heads/master@{#825039}