Lock scheme #4: Introduced the render sample queue for the aec and aecm

webrtc/modules/audio_processing/audio_processing_impl.cc

Index: webrtc/modules/audio_processing/audio_processing_impl.cc
diff --git a/webrtc/modules/audio_processing/audio_processing_impl.cc b/webrtc/modules/audio_processing/audio_processing_impl.cc
index f3ee0a399d54eaefad5020a550816051c421d0eb..bfe24c52a941c7b317db6fa1c28e7f68c07cbc6b 100644
--- a/webrtc/modules/audio_processing/audio_processing_impl.cc
+++ b/webrtc/modules/audio_processing/audio_processing_impl.cc
@@ -529,6 +529,9 @@ int AudioProcessingImpl::ProcessStream(const float* const* src,
     return kNullPointerError;
   }
 
+  echo_cancellation_->ReadQueuedRenderData();
+  echo_control_mobile_->ReadQueuedRenderData();
+
   ProcessingConfig processing_config = api_format_;
   processing_config.input_stream() = input_config;
   processing_config.output_stream() = output_config;
@@ -570,6 +573,9 @@ int AudioProcessingImpl::ProcessStream(const float* const* src,
 
 int AudioProcessingImpl::ProcessStream(AudioFrame* frame) {
   CriticalSectionScoped crit_scoped(crit_);
+  echo_cancellation_->ReadQueuedRenderData();
+  echo_control_mobile_->ReadQueuedRenderData();
+
   if (!frame) {
     return kNullPointerError;
   }