Mark EmbeddedServiceInfo::ServiceFactory as a RepeatingCallback.

BUG=714018

Change-Id: Ia17a1dc5f1d06ea6d0af1301489526c9030d1d53
Reviewed-on: https://chromium-review.googlesource.com/1054779
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Jay Civelli <jcivelli@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Reviewed-by: Ken Rockot <rockot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#558487}
2 files changed