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 9735dcde657dc8cf401d6c9447d6e73da57582fe..7972cd7b2c78c6a762d9fad750b1ea0f40568d57 100644
--- a/webrtc/modules/audio_processing/voice_detection_impl.h
+++ b/webrtc/modules/audio_processing/voice_detection_impl.h
@@ -11,6 +11,7 @@
 #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/base/thread_checker.h"
 #include "webrtc/modules/audio_processing/include/audio_processing.h"
 #include "webrtc/modules/audio_processing/processing_component.h"
@@ -24,7 +25,7 @@ class VoiceDetectionImpl : public VoiceDetection,
                            public ProcessingComponent {
  public:
   VoiceDetectionImpl(const AudioProcessing* apm,
-                     CriticalSectionWrapper* crit,
+                     rtc::CriticalSection* crit,
                      rtc::ThreadChecker* capture_thread);
   virtual ~VoiceDetectionImpl();
 
@@ -55,7 +56,7 @@ class VoiceDetectionImpl : public VoiceDetection,
   int GetHandleError(void* handle) const override;
 
   const AudioProcessing* apm_;
-  CriticalSectionWrapper* crit_;
+  rtc::CriticalSection* const crit_;
   const rtc::ThreadChecker* const capture_thread_;
   bool stream_has_voice_;
   bool using_external_vad_;