Swap use of CriticalSectionWrapper with rtc::CriticalSection in voice_engine/

webrtc/voice_engine/dtmf_inband_queue.h

 /*
  *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_VOICE_ENGINE_DTMF_INBAND_QUEUE_H
 #define WEBRTC_VOICE_ENGINE_DTMF_INBAND_QUEUE_H
 
-#include "webrtc/system_wrappers/include/critical_section_wrapper.h"
+#include "webrtc/base/criticalsection.h"
 #include "webrtc/typedefs.h"
 #include "webrtc/voice_engine/voice_engine_defines.h"
 
 
 namespace webrtc {
 
 class DtmfInbandQueue
 {
 public:
 
     DtmfInbandQueue(int32_t id);
 
     virtual ~DtmfInbandQueue();
 
     int AddDtmf(uint8_t DtmfKey, uint16_t len, uint8_t level);
 
     int8_t NextDtmf(uint16_t* len, uint8_t* level);
 
     bool PendingDtmf();
 
     void ResetDtmf();
 
 private:
     enum {kDtmfInbandMax = 20};
 
     int32_t _id;
-    CriticalSectionWrapper& _DtmfCritsect;
+    rtc::CriticalSection _DtmfCritsect;
     uint8_t _nextEmptyIndex;
     uint8_t _DtmfKey[kDtmfInbandMax];
     uint16_t _DtmfLen[kDtmfInbandMax];
     uint8_t _DtmfLevel[kDtmfInbandMax];
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_VOICE_ENGINE_DTMF_INBAND_QUEUE_H