Added basic framework for AEC3 in the audio processing module

webrtc/modules/audio_processing/test/aec_dump_based_simulator.cc

Index: webrtc/modules/audio_processing/test/aec_dump_based_simulator.cc
diff --git a/webrtc/modules/audio_processing/test/aec_dump_based_simulator.cc b/webrtc/modules/audio_processing/test/aec_dump_based_simulator.cc
index 694f2cd90c8f5cc702573a7ad1046b2e9983c151..0db6243e68169eecc8eb9f473a5f1af97fc8fcb1 100644
--- a/webrtc/modules/audio_processing/test/aec_dump_based_simulator.cc
+++ b/webrtc/modules/audio_processing/test/aec_dump_based_simulator.cc
@@ -442,7 +442,7 @@ void AecDumpBasedSimulator::HandleMessage(
     }
 
     if (settings_.use_aec3) {
-      config.Set<EchoCanceller3>(new EchoCanceller3(*settings_.use_aec3));
+      apm_config.echo_canceller3.enabled = *settings_.use_aec3;
     }
 
     if (settings_.use_lc) {