Changed default value for the duration of the echo in echocanceller 3

webrtc/modules/audio_processing/aec3/echo_canceller3_unittest.cc

 /*
  *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 666 matching lines @@
   for (auto rate : {8000, 16000, 32000, 48000}) {
     for (auto variant : variants) {
       SCOPED_TRACE(ProduceDebugText(rate, static_cast<int>(variant)));
       EchoCanceller3Tester(rate).RunEchoLeakageVerificationTest(variant);
     }
   }
 }
 
 TEST(EchoCanceller3, ConfigValidation) {
   AudioProcessing::Config::EchoCanceller3 config;
-
-  config.echo_decay = 0.f;
   EXPECT_TRUE(EchoCanceller3::Validate(config));
-  config.echo_decay = 0.9f;
-  EXPECT_TRUE(EchoCanceller3::Validate(config));
-  config.echo_decay = -0.1f;
-  EXPECT_FALSE(EchoCanceller3::Validate(config));
-  config.echo_decay = 1.0f;
-  EXPECT_FALSE(EchoCanceller3::Validate(config));
-  config.echo_decay = 1.1f;
-  EXPECT_FALSE(EchoCanceller3::Validate(config));
 }
 
 #if RTC_DCHECK_IS_ON && GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
 
 TEST(EchoCanceller3InputCheck, WrongCaptureNumBandsCheckVerification) {
   for (auto rate : {8000, 16000, 32000, 48000}) {
     SCOPED_TRACE(ProduceDebugText(rate));
     EchoCanceller3Tester(rate).RunProcessCaptureNumBandsCheckVerification();
   }
 }
@@ skipping 48 matching lines @@
 TEST(EchoCanceller3InputCheck, DISABLED_WrongSampleRate) {
   ApmDataDumper data_dumper(0);
   EXPECT_DEATH(
       EchoCanceller3(AudioProcessing::Config::EchoCanceller3(), 8001, false),
       "");
 }
 
 #endif
 
 }  // namespace webrtc