Utilizing the AEC3 config struct for constants.

webrtc/modules/audio_processing/aec3/erle_estimator.h

Index: webrtc/modules/audio_processing/aec3/erle_estimator.h
diff --git a/webrtc/modules/audio_processing/aec3/erle_estimator.h b/webrtc/modules/audio_processing/aec3/erle_estimator.h
index 48bb75a66825b1a315bfe3baa24fd5621544feb5..91a8c6ceb8882531726ca835b3d4cb25f1b14033 100644
--- a/webrtc/modules/audio_processing/aec3/erle_estimator.h
+++ b/webrtc/modules/audio_processing/aec3/erle_estimator.h
@@ -21,7 +21,7 @@ namespace webrtc {
 // Estimates the echo return loss enhancement based on the signal spectra.
 class ErleEstimator {
  public:
-  ErleEstimator();
+  ErleEstimator(float min_erle, float max_erle_lf, float max_erle_hf);
   ~ErleEstimator();
 
   // Updates the ERLE estimate.
@@ -35,6 +35,9 @@ class ErleEstimator {
  private:
   std::array<float, kFftLengthBy2Plus1> erle_;
   std::array<int, kFftLengthBy2Minus1> hold_counters_;
+  const float min_erle_;
+  const float max_erle_lf_;
+  const float max_erle_hf_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(ErleEstimator);
 };