Implementing APIs to set maximum and minimum for latency.

cpplint warnning fixed

Ready for review

BUG=
R=minyue@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1971004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@4563 4adac7df-926f-26a2-2b94-8c16560cd09d
6 files changed