ServiceWorker: two sided patch cleanup.
ServiceWorker: two sided patch cleanup.

TBR=jochen
BUG=371671

Review URL: https://codereview.chromium.org/330883005

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@176893 bbb929c8-8fbe-4397-9dbb-9b2b20218538

primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs