Fix a return value mismatch introduced in r4129.

TBR=mflodman@webrtc.org
TEST=vie_auto_test, trybots

Review URL: https://webrtc-codereview.appspot.com/1584005

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@4131 4adac7df-926f-26a2-2b94-8c16560cd09d
3 files changed