Lock scheme #8: Introduced the new locking scheme

webrtc/modules/audio_processing/voice_detection_impl.h

Index: webrtc/modules/audio_processing/voice_detection_impl.h
diff --git a/webrtc/modules/audio_processing/voice_detection_impl.h b/webrtc/modules/audio_processing/voice_detection_impl.h
index b18808316e7bc09667820f8e5f61427417410a06..e0a1ba5402ebcb786b605bda15378dd935cfc1fd 100644
--- a/webrtc/modules/audio_processing/voice_detection_impl.h
+++ b/webrtc/modules/audio_processing/voice_detection_impl.h
@@ -11,18 +11,18 @@
 #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_VOICE_DETECTION_IMPL_H_
 #define WEBRTC_MODULES_AUDIO_PROCESSING_VOICE_DETECTION_IMPL_H_
 
+#include "webrtc/base/criticalsection.h"
 #include "webrtc/modules/audio_processing/include/audio_processing.h"
 #include "webrtc/modules/audio_processing/processing_component.h"
 
 namespace webrtc {
 
 class AudioBuffer;
-class CriticalSectionWrapper;
 
 class VoiceDetectionImpl : public VoiceDetection,
                            public ProcessingComponent {
  public:
-  VoiceDetectionImpl(const AudioProcessing* apm, CriticalSectionWrapper* crit);
+  VoiceDetectionImpl(const AudioProcessing* apm, rtc::CriticalSection* crit);
   virtual ~VoiceDetectionImpl();
 
   int ProcessCaptureAudio(AudioBuffer* audio);
@@ -52,7 +52,7 @@ class VoiceDetectionImpl : public VoiceDetection,
   int GetHandleError(void* handle) const override;
 
   const AudioProcessing* apm_;
-  CriticalSectionWrapper* crit_;
+  rtc::CriticalSection* const crit_;
   bool stream_has_voice_;
   bool using_external_vad_;
   Likelihood likelihood_;