GitLab

This enables use of ThumbnailSchedulerImpl in ThumbnailTabHelper.

Bug: 1090038
Change-Id: Ie1961e142d48f4c821a668e46fe804449b050725
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2532910Reviewed-by: Dana Fried <dfried@chromium.org>
Commit-Queue: Collin Baker <collinbaker@chromium.org>
Cr-Commit-Position: refs/heads/master@{#826984}