Added the ability to adjust the AEC3 performance for large rooms

webrtc/modules/audio_processing/aec3/comfort_noise_generator_unittest.cc

Index: webrtc/modules/audio_processing/aec3/comfort_noise_generator_unittest.cc
diff --git a/webrtc/modules/audio_processing/aec3/comfort_noise_generator_unittest.cc b/webrtc/modules/audio_processing/aec3/comfort_noise_generator_unittest.cc
index dcdbab38eb7dbec023b43b05b97ef61234ec6fce..ce86f2db2c6e98e497ec094e3173f77a0f543886 100644
--- a/webrtc/modules/audio_processing/aec3/comfort_noise_generator_unittest.cc
+++ b/webrtc/modules/audio_processing/aec3/comfort_noise_generator_unittest.cc
@@ -36,7 +36,7 @@ TEST(ComfortNoiseGenerator, NullLowerBandNoise) {
   std::array<float, kFftLengthBy2Plus1> N2;
   FftData noise;
   EXPECT_DEATH(ComfortNoiseGenerator(DetectOptimization())
-                   .Compute(AecState(), N2, nullptr, &noise),
+                   .Compute(AecState(0.f), N2, nullptr, &noise),
                "");
 }
 
@@ -44,7 +44,7 @@ TEST(ComfortNoiseGenerator, NullUpperBandNoise) {
   std::array<float, kFftLengthBy2Plus1> N2;
   FftData noise;
   EXPECT_DEATH(ComfortNoiseGenerator(DetectOptimization())
-                   .Compute(AecState(), N2, &noise, nullptr),
+                   .Compute(AecState(0.f), N2, &noise, nullptr),
                "");
 }
 
@@ -91,7 +91,7 @@ TEST(ComfortNoiseGenerator, TestOptimizations) {
 
 TEST(ComfortNoiseGenerator, CorrectLevel) {
   ComfortNoiseGenerator cng(DetectOptimization());
-  AecState aec_state;
+  AecState aec_state(0.f);
 
   std::array<float, kFftLengthBy2Plus1> N2;
   N2.fill(1000.f * 1000.f);