GitLab

Moves this service into the canonical location for services within
//components.

A followup CL will rename the service from "patch_service" to "patch".

TBR=dcheng@chromium.org
NOPRESUBMIT=true

Change-Id: I36207005323653f85d7be5841b0ecf60a29fdc85
Reviewed-on: https://chromium-review.googlesource.com/955648Reviewed-by: Colin Blundell <blundell@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Joshua Pawlicki <waffles@chromium.org>
Commit-Queue: Colin Blundell <blundell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#543133}