Oilpan: Prepare moving HTMLInputElement to oilpan

BUG=357163

Review URL: https://codereview.chromium.org/296003002

git-svn-id: svn://svn.chromium.org/blink/trunk@174660 bbb929c8-8fbe-4397-9dbb-9b2b20218538
ServiceWorker: interfaces.html test should also unregister scope before/after test

A forgotten one.

BUG=370777
TEST=http/tests/serviceworker/interfaces.html

Review URL: https://codereview.chromium.org/294973009

git-svn-id: svn://svn.chromium.org/blink/trunk@174661 bbb929c8-8fbe-4397-9dbb-9b2b20218538