Fix bug introduced during replace of list wrapper with std equivalents in r5378.

R=henrika@webrtc.org, pbos@webrtc.org, henrike@webrtc.org
TBR=henrike@webrtc.org
BUG=2164

Review URL: https://webrtc-codereview.appspot.com/7639004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@5437 4adac7df-926f-26a2-2b94-8c16560cd09d
1 file changed