Remove unused code for ApplyFixedAudioConstraints in media_stream_audio_processor.

content/renderer/media/media_stream_audio_processor_options.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/media/media_stream_audio_processor_options.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/files/file_path.h"
@@ skipping 116 matching lines @@
     const blink::WebMediaConstraints& constraints,
     blink::BooleanConstraint blink::WebMediaTrackConstraintSet::*picker,
     bool the_default) {
   bool value;
   if (GetConstraintValueAsBoolean(constraints, picker, &value)) {
     return value;
   }
   return the_default;
 }
 
-void SetIfNotSet(rtc::Optional<bool>* field, bool value) {
-  if (!*field) {
-    *field = rtc::Optional<bool>(value);
-  }
-}
-
 }  // namespace
 
-// TODO(xians): Remove this method after the APM in WebRtc is deprecated.
-void MediaAudioConstraints::ApplyFixedAudioConstraints(
-    cricket::AudioOptions* options) {
-  SetIfNotSet(&options->echo_cancellation, true);
-#if defined(OS_ANDROID)
-  SetIfNotSet(&options->extended_filter_aec, false);
-#else
-  // Enable the extended filter mode AEC on all non-mobile platforms.
-  SetIfNotSet(&options->extended_filter_aec, true);
-#endif
-  SetIfNotSet(&options->auto_gain_control, true);
-  SetIfNotSet(&options->experimental_agc, true);
-  SetIfNotSet(&options->noise_suppression, true);
-  SetIfNotSet(&options->highpass_filter, true);
-  SetIfNotSet(&options->typing_detection, true);
-  SetIfNotSet(&options->experimental_ns, true);
-}
-
 MediaAudioConstraints::MediaAudioConstraints(
     const blink::WebMediaConstraints& constraints, int effects)
     : constraints_(constraints),
       effects_(effects),
       default_audio_processing_constraint_value_(true) {
   // The default audio processing constraints are turned off when
   // - gUM has a specific kMediaStreamSource, which is used by tab capture
   //   and screen capture.
   // - |kEchoCancellation| is explicitly set to false.
   bool echo_constraint;
@@ skipping 332 matching lines @@
 
   // Give preference to the audio constraint over the device-supplied mic
   // positions. This is mainly for testing purposes.
   return WebrtcPointsFromMediaPoints(
       constraints_geometry.empty()
           ? input_params.mic_positions
           : media::ParsePointsFromString(constraints_geometry));
 }
 
 }  // namespace content