Makes it such that calling ThreadWrapper::Start(..) only returns false if a thread was never started. I.e. it will not return false if it was unable to configure the thread (however it does log such failures).

Review URL: https://webrtc-codereview.appspot.com/869004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@2879 4adac7df-926f-26a2-2b94-8c16560cd09d
7 files changed