GitLab

Renames RunUntilTermination to RunAsyncUntilTermination to
(hopefully) clarify that the call does not block the caller until
the service terminates.

TBR=sky@chromium.org

Bug: None
Change-Id: I04e059a0332b76d565625059baf11dd077275aa3
Reviewed-on: https://chromium-review.googlesource.com/c/1351537
Commit-Queue: Ken Rockot <rockot@google.com>
Reviewed-by: Scott Violet <sky@chromium.org>
Reviewed-by: Ken Rockot <rockot@google.com>
Cr-Commit-Position: refs/heads/master@{#612190}