Set WorkerSettings of ServiceWorkerGlobalScope.

I'm planing to add MixedContentChecking related settings to
WorkerSettings for off-main-thread-fetch.
But WorkerSettings is not set correctly in ServiceWorkerGlobalScope.
So this CL just adds SetWorkerSettings() in
ServiceWorkerGlobalScope::Create().

BUG=607575, 443374

Change-Id: I0e32bb84ce316b7125bfe11facfe5182095ae63f
Reviewed-on: https://chromium-review.googlesource.com/571207
Reviewed-by: Hiroki Nakagawa <nhiroki@chromium.org>
Commit-Queue: Tsuyoshi Horo <horo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#486701}
1 file changed