TaskScheduler migration for ServiceWorkerURLRequestJob.

GetBlockingPool() -> PostTask()

Bug: 667892
Change-Id: I147c392124beb69d379a2e586eddeb872ac99d54
Reviewed-on: https://chromium-review.googlesource.com/586354
Reviewed-by: Hiroki Nakagawa <nhiroki@chromium.org>
Commit-Queue: Matt Falkenhagen <falken@chromium.org>
Cr-Commit-Position: refs/heads/master@{#489852}
1 file changed