Fix test name collision in http/tests/fetch/serviceworker

Tests in http/tests/fetch/serviceworker calls service_worker_test with
its script name. Unfortunately the name conflicts with
WorkerTestEnvironment.prototype.next_default_text_name. If no tests
exists in the script, the default name is used and that results in
a "duplicate test name" error. Rename the test name from
TESTNAME to TESTNAME-serviceworker.

Bug: 914679
Change-Id: Id2e40cc222609bb01e354fa4aa24cfdbba267724
Reviewed-on: https://chromium-review.googlesource.com/c/1375179
Commit-Queue: Yutaka Hirano <yhirano@chromium.org>
Reviewed-by: Matt Falkenhagen <falken@chromium.org>
Cr-Commit-Position: refs/heads/master@{#616252}
77 files changed