Update libjingle to 50191337.

R=mallinath@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1885005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@4461 4adac7df-926f-26a2-2b94-8c16560cd09d

talk/base/thread_unittest.cc

@@ -28,7 +28,6 @@
 #include "talk/base/asyncudpsocket.h"
 #include "talk/base/event.h"
 #include "talk/base/gunit.h"
-#include "talk/base/host.h"
 #include "talk/base/physicalsocketserver.h"
 #include "talk/base/socketaddress.h"
 #include "talk/base/thread.h"