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The Mac implementation uses the out of process service.
Win still doesn't have that, so the implementation is unchanged.

Bug: 1048653
Change-Id: I70227020f79fc164b361cfcb998a041528a89dd9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2078907
Commit-Queue: Mila Green <milagreen@chromium.org>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Reviewed-by: Sorin Jianu <sorin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#745996}