Disable test causing race conditions.
Disable test causing race conditions.

TBR=kjellander
BUG=issue788

Review URL: https://webrtc-codereview.appspot.com/770004

git-svn-id: 9b397c5dfe384c04b1b200d5305b653241000171@2685 4adac7df-926f-26a2-2b94-8c16560cd09d

lukeweber/webrtc-src-override,lukeweber/webrtc-src-override,lukeweber/webrtc-src-override,lukeweber/webrtc-src-override,lukeweber/webrtc-src-override,lukeweber/webrtc-src-override,lukeweber/webrtc-src-override