Major updates to the echo removal functionality in AEC3

webrtc/modules/audio_processing/BUILD.gn

 # Copyright (c) 2014 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.
 
 import("//build/config/arm.gni")
 import("//third_party/protobuf/proto_library.gni")
@@ skipping 55 matching lines @@
     "aec3/frame_blocker.cc",
     "aec3/frame_blocker.h",
     "aec3/main_filter_update_gain.cc",
     "aec3/main_filter_update_gain.h",
     "aec3/matched_filter.cc",
     "aec3/matched_filter.h",
     "aec3/matched_filter_lag_aggregator.cc",
     "aec3/matched_filter_lag_aggregator.h",
     "aec3/output_selector.cc",
     "aec3/output_selector.h",
-    "aec3/power_echo_model.cc",
-    "aec3/power_echo_model.h",
     "aec3/render_buffer.cc",
     "aec3/render_buffer.h",
     "aec3/render_delay_buffer.cc",
     "aec3/render_delay_buffer.h",
     "aec3/render_delay_controller.cc",
     "aec3/render_delay_controller.h",
     "aec3/render_delay_controller_metrics.cc",
     "aec3/render_delay_controller_metrics.h",
     "aec3/render_signal_analyzer.cc",
     "aec3/render_signal_analyzer.h",
@@ skipping 496 matching lines @@
         "aec3/echo_remover_metrics_unittest.cc",
         "aec3/echo_remover_unittest.cc",
         "aec3/erl_estimator_unittest.cc",
         "aec3/erle_estimator_unittest.cc",
         "aec3/fft_data_unittest.cc",
         "aec3/frame_blocker_unittest.cc",
         "aec3/main_filter_update_gain_unittest.cc",
         "aec3/matched_filter_lag_aggregator_unittest.cc",
         "aec3/matched_filter_unittest.cc",
         "aec3/output_selector_unittest.cc",
-        "aec3/power_echo_model_unittest.cc",
         "aec3/render_buffer_unittest.cc",
         "aec3/render_delay_buffer_unittest.cc",
         "aec3/render_delay_controller_metrics_unittest.cc",
         "aec3/render_delay_controller_unittest.cc",
         "aec3/render_signal_analyzer_unittest.cc",
         "aec3/residual_echo_estimator_unittest.cc",
         "aec3/shadow_filter_update_gain_unittest.cc",
         "aec3/subtractor_unittest.cc",
         "aec3/suppression_filter_unittest.cc",
         "aec3/suppression_gain_unittest.cc",
@@ skipping 212 matching lines @@
       ]
 
       deps = [
         ":audioproc_debug_proto",
         "../..:webrtc_common",
         "../../base:rtc_base_approved",
       ]
     }
   }
 }