Reland of Introduced new scheme for controlling the functionality inside the audio processing module

webrtc/modules/audio_processing/echo_cancellation_impl.cc

 /*
  *  Copyright (c) 2012 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 514 matching lines @@
             kMaxNumFramesToBuffer, template_queue_element,
             RenderQueueItemVerifier<float>(render_queue_element_max_size_)));
 
     render_queue_buffer_.resize(render_queue_element_max_size_);
     capture_queue_buffer_.resize(render_queue_element_max_size_);
   } else {
     render_signal_queue_->Clear();
   }
 }
 
-void EchoCancellationImpl::SetExtraOptions(const Config& config) {
+void EchoCancellationImpl::SetExtraOptions(const webrtc::Config& config) {
   {
     rtc::CritScope cs(crit_capture_);
     extended_filter_enabled_ = config.Get<ExtendedFilter>().enabled;
     delay_agnostic_enabled_ = config.Get<DelayAgnostic>().enabled;
     refined_adaptive_filter_enabled_ =
         config.Get<RefinedAdaptiveFilter>().enabled;
     aec3_enabled_ = config.Get<EchoCanceller3>().enabled;
   }
   Configure();
 }
@@ skipping 26 matching lines @@
   return error;
 }
 
 size_t EchoCancellationImpl::NumCancellersRequired() const {
   RTC_DCHECK(stream_properties_);
   return stream_properties_->num_output_channels *
          stream_properties_->num_reverse_channels;
 }
 
 }  // namespace webrtc