GitLab

Replace use of QuitCurrent*Deprecated() with use of the QuitClosure of
the //content default main message loop's RunLoop.

Bug: 844016
Change-Id: I14eb18304de9c9ddaabc2860998d12733572e7f7
Reviewed-on: https://chromium-review.googlesource.com/1103787
Commit-Queue: Wez <wez@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#568103}