Refresh LocalDOMWindow post-Oilpan.

The debug flag m_hasBeenReset no longer serves a purpose +
OwnedPtrDeleter<> usage doesn't either.

R=
BUG=585328

Review-Url: https://codereview.chromium.org/1932653003
Cr-Commit-Position: refs/heads/master@{#390436}
2 files changed