Utilizing the AEC3 config struct for constants.

webrtc/modules/audio_processing/aec3/residual_echo_estimator_unittest.cc

Index: webrtc/modules/audio_processing/aec3/residual_echo_estimator_unittest.cc
diff --git a/webrtc/modules/audio_processing/aec3/residual_echo_estimator_unittest.cc b/webrtc/modules/audio_processing/aec3/residual_echo_estimator_unittest.cc
index b448c4df43ef275503af89e3341cfc1acf16bb82..68022bc980160bf092a30be694879488b03a77f8 100644
--- a/webrtc/modules/audio_processing/aec3/residual_echo_estimator_unittest.cc
+++ b/webrtc/modules/audio_processing/aec3/residual_echo_estimator_unittest.cc
@@ -12,6 +12,7 @@
 
 #include "webrtc/modules/audio_processing/aec3/aec3_fft.h"
 #include "webrtc/modules/audio_processing/aec3/aec_state.h"
+#include "webrtc/modules/audio_processing/include/audio_processing.h"
 #include "webrtc/modules/audio_processing/test/echo_canceller_test_tools.h"
 #include "webrtc/rtc_base/random.h"
 #include "webrtc/test/gtest.h"
@@ -36,8 +37,8 @@ TEST(ResidualEchoEstimator, NullResidualEchoPowerOutput) {
 #endif
 
 TEST(ResidualEchoEstimator, BasicTest) {
-  ResidualEchoEstimator estimator;
-  AecState aec_state(0.f);
+  ResidualEchoEstimator estimator(AudioProcessing::Config::EchoCanceller3{});
+  AecState aec_state(AudioProcessing::Config::EchoCanceller3{});
   RenderBuffer render_buffer(Aec3Optimization::kNone, 3, 10,
                              std::vector<size_t>(1, 10));
   std::array<float, kFftLengthBy2Plus1> E2_main;