Update test expectations for Service Worker tests.

BUG=409755,418864,301515,401381,418868,372424,418869
R=nhiroki@chromium.org

Review URL: https://codereview.chromium.org/612323002

git-svn-id: svn://svn.chromium.org/blink/trunk@182889 bbb929c8-8fbe-4397-9dbb-9b2b20218538