Post VerifyInstallation() to TaskScheduler instead of BlockingPool.

TODO(robertshield): remove this call and everything that falls off of it.

R=robertshield@chromium.org, thakis@chromium.org

Bug: 667892, 747557
Change-Id: I1ddad1db01f18db6b7121945c1313933c9e2e16b
Reviewed-on: https://chromium-review.googlesource.com/581634
Commit-Queue: Gabriel Charette <gab@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#488797}
1 file changed