WATCHLIST entries for serviceworkers and updates for indexed_db
WATCHLIST entries for serviceworkers and updates for indexed_db

NOTRY=true
TBR=alecflett,ericu

Review URL: https://codereview.chromium.org/178343004

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@167712 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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