Version 3.29.20.2 (merged r23463)

Remove C++11-ism, until all bots support it.

TBR=vogelheim@chromium.org
BUG=

Review URL: https://codereview.chromium.org/510833002

git-svn-id: https://v8.googlecode.com/svn/trunk@23464 ce2b1a6d-e550-0410-aec6-3dcde31c8c00