Utilizing the AEC3 config struct for constants.

webrtc/modules/audio_processing/aec3/adaptive_fir_filter_unittest.cc

Index: webrtc/modules/audio_processing/aec3/adaptive_fir_filter_unittest.cc
diff --git a/webrtc/modules/audio_processing/aec3/adaptive_fir_filter_unittest.cc b/webrtc/modules/audio_processing/aec3/adaptive_fir_filter_unittest.cc
index b9ab201991abda7948e15e453f27febfbff0e913..5fc4a024788b264377555cbc05e12ad634fc8296 100644
--- a/webrtc/modules/audio_processing/aec3/adaptive_fir_filter_unittest.cc
+++ b/webrtc/modules/audio_processing/aec3/adaptive_fir_filter_unittest.cc
@@ -305,7 +305,7 @@ TEST(AdaptiveFirFilter, FilterAndAdapt) {
   std::vector<std::vector<float>> x(3, std::vector<float>(kBlockSize, 0.f));
   std::vector<float> n(kBlockSize, 0.f);
   std::vector<float> y(kBlockSize, 0.f);
-  AecState aec_state(0.f);
+  AecState aec_state(AudioProcessing::Config::EchoCanceller3{});
   RenderSignalAnalyzer render_signal_analyzer;
   std::vector<float> e(kBlockSize, 0.f);
   std::array<float, kFftLength> s_scratch;