Preparational work for an upcoming addition of a threadchecking scheme for APM

webrtc/modules/audio_processing/voice_detection_impl.cc

Index: webrtc/modules/audio_processing/voice_detection_impl.cc
diff --git a/webrtc/modules/audio_processing/voice_detection_impl.cc b/webrtc/modules/audio_processing/voice_detection_impl.cc
index 710df4233fa55bab5246feba1309519529743c14..7cee1837ba1e807bc636784c79368c8e1d195b4e 100644
--- a/webrtc/modules/audio_processing/voice_detection_impl.cc
+++ b/webrtc/modules/audio_processing/voice_detection_impl.cc
@@ -38,19 +38,22 @@ int MapSetting(VoiceDetection::Likelihood likelihood) {
 }  // namespace
 
 VoiceDetectionImpl::VoiceDetectionImpl(const AudioProcessing* apm,
-                                       CriticalSectionWrapper* crit)
-  : ProcessingComponent(),
-    apm_(apm),
-    crit_(crit),
-    stream_has_voice_(false),
-    using_external_vad_(false),
-    likelihood_(kLowLikelihood),
-    frame_size_ms_(10),
-    frame_size_samples_(0) {}
+                                       CriticalSectionWrapper* crit,
+                                       rtc::ThreadChecker* capture_thread)
+    : ProcessingComponent(),
+      apm_(apm),
+      crit_(crit),
+      capture_thread_(capture_thread),
+      stream_has_voice_(false),
+      using_external_vad_(false),
+      likelihood_(kLowLikelihood),
+      frame_size_ms_(10),
+      frame_size_samples_(0) {}
 
 VoiceDetectionImpl::~VoiceDetectionImpl() {}
 
 int VoiceDetectionImpl::ProcessCaptureAudio(AudioBuffer* audio) {
+  RTC_DCHECK(capture_thread_->CalledOnValidThread());
   if (!is_component_enabled()) {
     return apm_->kNoError;
   }