Oilpan: fix build after r199293.
Oilpan: fix build after r199293.

TBR=oilpan-reviews
BUG=509911
NOTRY=true

Review URL: https://codereview.chromium.org/1244363002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@199306 bbb929c8-8fbe-4397-9dbb-9b2b20218538

Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk