Fix build on 3.24 branch

TBR=verwaest@chromium.org

Review URL: https://codereview.chromium.org/223043002

git-svn-id: https://v8.googlecode.com/svn/branches/3.24@20453 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/3.24' into 3.24