Remove more CriticalSectionWrappers.

webrtc/modules/audio_device/linux/audio_mixer_manager_alsa_linux.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_AUDIO_DEVICE_AUDIO_MIXER_MANAGER_ALSA_LINUX_H
 #define WEBRTC_AUDIO_DEVICE_AUDIO_MIXER_MANAGER_ALSA_LINUX_H
 
+#include "webrtc/base/criticalsection.h"
 #include "webrtc/modules/audio_device/include/audio_device.h"
 #include "webrtc/modules/audio_device/linux/alsasymboltable_linux.h"
-#include "webrtc/system_wrappers/include/critical_section_wrapper.h"
 #include "webrtc/typedefs.h"
 
 #include <alsa/asoundlib.h>
 
 namespace webrtc
 {
 
 class AudioMixerManagerLinuxALSA
 {
 public:
@@ skipping 29 matching lines @@
 public:
     AudioMixerManagerLinuxALSA(const int32_t id);
     ~AudioMixerManagerLinuxALSA();
 
 private:
     int32_t LoadMicMixerElement() const;
     int32_t LoadSpeakerMixerElement() const;
     void GetControlName(char *controlName, char* deviceName) const;
 
 private:
-    CriticalSectionWrapper& _critSect;
+    rtc::CriticalSection _critSect;
     int32_t _id;
     mutable snd_mixer_t* _outputMixerHandle;
     char _outputMixerStr[kAdmMaxDeviceNameSize];
     mutable snd_mixer_t* _inputMixerHandle;
     char _inputMixerStr[kAdmMaxDeviceNameSize];
     mutable snd_mixer_elem_t* _outputMixerElement;
     mutable snd_mixer_elem_t* _inputMixerElement;
 };
 
 }
 
 #endif  // MODULES_AUDIO_DEVICE_MAIN_SOURCE_LINUX_AUDIO_MIXER_MANAGER_ALSA_LINUX_H_