This is a necessary precursor to using uint16s for port numbers more consistently in Chromium code. This also makes some minor formatting changes in surrounding code (function declaration wrapping, virtual -> override). BUG=chromium:81439 TEST=none R=henrike@webrtc.org Review URL: https://webrtc-codereview.appspot.com/32379004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@7656 4adac7df-926f-26a2-2b94-8c16560cd09d