Add back the WEBRTC_DIRECT_TRACE flag.

BUG=
R=andresp@webrtc.org, andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1596004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@4201 4adac7df-926f-26a2-2b94-8c16560cd09d
1 file changed