Worker: Hard-code AccessControlStatus for classic script evaluation in WorkerGlobalScope

This is a cleanup CL. Before this CL, AccessControlStatus for classic worker
scripts are passed from each worker implementation to WorkerGlobalScope.
Actually, however, AccessControlStatus::kSharableCrossOrigin is always specified
because cross-origin workers are disallowed. For cleanup, this CL stops passing
AccessControlStatus and instead hard-codes it in WorkerGlobalScope.

Bug: 835717
Change-Id: I9af910c113f1d5f032e77f48f54e1bc74153808b
Reviewed-on: https://chromium-review.googlesource.com/c/1304279
Commit-Queue: Hiroki Nakagawa <nhiroki@chromium.org>
Reviewed-by: Yutaka Hirano <yhirano@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Reviewed-by: Matt Falkenhagen <falken@chromium.org>
Cr-Commit-Position: refs/heads/master@{#603755}
11 files changed