service worker: Run some browser_tests with disabling OTMT fetch

To have better test coverage until we fully ship
off-the-main-thread script fetch.

Bug: 967272

Change-Id: I688a8772cb54bbbcedab9a27a332f09bb067b1c6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1674984
Commit-Queue: Kenichi Ishibashi <bashi@chromium.org>
Reviewed-by: Hiroki Nakagawa <nhiroki@chromium.org>
Reviewed-by: Matt Falkenhagen <falken@chromium.org>
Cr-Commit-Position: refs/heads/master@{#672793}
1 file changed