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

webrtc/modules/audio_processing/noise_suppression_impl.cc

Index: webrtc/modules/audio_processing/noise_suppression_impl.cc
diff --git a/webrtc/modules/audio_processing/noise_suppression_impl.cc b/webrtc/modules/audio_processing/noise_suppression_impl.cc
index 15019112647efa1b02a15d65401b5499f21e670d..00198cf0602026f6c7e629397ca50ee77dc2b142 100644
--- a/webrtc/modules/audio_processing/noise_suppression_impl.cc
+++ b/webrtc/modules/audio_processing/noise_suppression_impl.cc
@@ -47,15 +47,18 @@ int MapSetting(NoiseSuppression::Level level) {
 }  // namespace
 
 NoiseSuppressionImpl::NoiseSuppressionImpl(const AudioProcessing* apm,
-                                           CriticalSectionWrapper* crit)
-  : ProcessingComponent(),
-    apm_(apm),
-    crit_(crit),
-    level_(kModerate) {}
+                                           CriticalSectionWrapper* crit,
+                                           rtc::ThreadChecker* capture_thread)
+    : ProcessingComponent(),
+      apm_(apm),
+      crit_(crit),
+      capture_thread_(capture_thread),
+      level_(kModerate) {}
 
 NoiseSuppressionImpl::~NoiseSuppressionImpl() {}
 
 int NoiseSuppressionImpl::AnalyzeCaptureAudio(AudioBuffer* audio) {
+  RTC_DCHECK(capture_thread_->CalledOnValidThread());
 #if defined(WEBRTC_NS_FLOAT)
   if (!is_component_enabled()) {
     return apm_->kNoError;
@@ -73,6 +76,7 @@ int NoiseSuppressionImpl::AnalyzeCaptureAudio(AudioBuffer* audio) {
 }
 
 int NoiseSuppressionImpl::ProcessCaptureAudio(AudioBuffer* audio) {
+  RTC_DCHECK(capture_thread_->CalledOnValidThread());
   if (!is_component_enabled()) {
     return apm_->kNoError;
   }