LeakExpectations: Add more {serviceworker,isolatedWorld} tests.

BUG=364377, 364390
NOTRY=true

Review URL: https://codereview.chromium.org/271583002

git-svn-id: svn://svn.chromium.org/blink/trunk@173465 bbb929c8-8fbe-4397-9dbb-9b2b20218538