Revert r59012 which started using Chrome sockets for sync.

jingle/notifier/listener/mediator_thread_impl.h

Index: jingle/notifier/listener/mediator_thread_impl.h
diff --git a/jingle/notifier/listener/mediator_thread_impl.h b/jingle/notifier/listener/mediator_thread_impl.h
index 342079f53715a9f1f8f23ea028dc222691a3fdc6..755731e55cfbc5446613a92c7127d090e6bf7d48 100644
--- a/jingle/notifier/listener/mediator_thread_impl.h
+++ b/jingle/notifier/listener/mediator_thread_impl.h
@@ -93,6 +93,10 @@ class MediatorThreadImpl
   MessageLoop* parent_message_loop_;
 
  private:
+  void StartLibjingleThread();
+  void PumpLibjingleLoop();
+  void StopLibjingleThread();
+
   // Called from within the thread on internal events.
   void DoLogin(const buzz::XmppClientSettings& settings);
   void DoDisconnect();
@@ -133,6 +137,10 @@ class MediatorThreadImpl
   scoped_ptr<notifier::TaskPump> pump_;
   scoped_ptr<notifier::Login> login_;
 
+  // Used only when |use_chrome_async_socket_| is false.
+  scoped_ptr<talk_base::SocketServer> socket_server_;
+  scoped_ptr<talk_base::Thread> libjingle_thread_;
+
   DISALLOW_COPY_AND_ASSIGN(MediatorThreadImpl);
 };