[ServiceWorker] Fix wpt test claim-fetch.https.html

Only content of claim-fetch.https.html needs to be revised.

BUG=678905
TEST=blink_tests
external/wpt/service-workers/service-worker/claim-fetch.https.html

Change-Id: I0efb5298847bb69c0f29bc2dffb1fc51c5a02960
Reviewed-on: https://chromium-review.googlesource.com/544677
Commit-Queue: Matt Falkenhagen <falken@chromium.org>
Reviewed-by: Matt Falkenhagen <falken@chromium.org>
Cr-Commit-Position: refs/heads/master@{#481891}
2 files changed