Added basic framework for AEC3 in the audio processing module

webrtc/modules/audio_processing/test/audio_processing_simulator.cc

Index: webrtc/modules/audio_processing/test/audio_processing_simulator.cc
diff --git a/webrtc/modules/audio_processing/test/audio_processing_simulator.cc b/webrtc/modules/audio_processing/test/audio_processing_simulator.cc
index ddfc562aafba474f8e8c05d8385a7d0445b391fa..27b3803a198ffadc89f55ca6abe8b8ea02972dd7 100644
--- a/webrtc/modules/audio_processing/test/audio_processing_simulator.cc
+++ b/webrtc/modules/audio_processing/test/audio_processing_simulator.cc
@@ -268,7 +268,7 @@ void AudioProcessingSimulator::CreateAudioProcessor() {
     config.Set<Intelligibility>(new Intelligibility(*settings_.use_ie));
   }
   if (settings_.use_aec3) {
-    config.Set<EchoCanceller3>(new EchoCanceller3(*settings_.use_aec3));
+    apm_config.echo_canceller3.enabled = *settings_.use_aec3;
   }
   if (settings_.use_lc) {
     apm_config.level_controller.enabled = *settings_.use_lc;