Remove use of ConditionVariableWrapper and CriticalSectionWrapper from UdpSocket2Windows.

webrtc/test/channel_transport/udp_socket2_win.h

Index: webrtc/test/channel_transport/udp_socket2_win.h
diff --git a/webrtc/test/channel_transport/udp_socket2_win.h b/webrtc/test/channel_transport/udp_socket2_win.h
index ea37ac47c517d868a073f6e502b3a167ad87c449..0f83378ae925c717d5ef63b4ff0f11c0363c69b4 100644
--- a/webrtc/test/channel_transport/udp_socket2_win.h
+++ b/webrtc/test/channel_transport/udp_socket2_win.h
@@ -19,9 +19,8 @@
 #include <Ntddndis.h>
 #include <traffic.h>
 
+#include "webrtc/base/event.h"
 #include "webrtc/system_wrappers/include/atomic32.h"
-#include "webrtc/system_wrappers/include/condition_variable_wrapper.h"
-#include "webrtc/system_wrappers/include/critical_section_wrapper.h"
 #include "webrtc/system_wrappers/include/event_wrapper.h"
 #include "webrtc/system_wrappers/include/rw_lock_wrapper.h"
 #include "webrtc/system_wrappers/include/trace.h"
@@ -133,14 +132,12 @@ private:
     int32_t _iProtocol;
     UdpSocket2ManagerWindows* _mgr;
 
-    CriticalSectionWrapper* _pCrit;
     Atomic32 _outstandingCalls;
     Atomic32 _outstandingCallComplete;
     volatile bool _terminate;
     volatile bool _addedToMgr;
 
-    CriticalSectionWrapper* _ptrDeleteCrit;
-    ConditionVariableWrapper* _ptrDeleteCond;
+    rtc::Event delete_event_;
     bool _safeTodelete;
 
     RWLockWrapper* _ptrDestRWLock;