Fix Oilpan build broken by r178403
Fix Oilpan build broken by r178403

TBR=oysteine@chromium.org,oilpan-reviews@chromium.org
BUG=

Review URL: https://codereview.chromium.org/404563006

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@178412 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