Add algorithm for Residual Echo Detector.

webrtc/modules/audio_processing/residual_echo_detector.cc

Index: webrtc/modules/audio_processing/residual_echo_detector.cc
diff --git a/webrtc/modules/audio_processing/residual_echo_detector.cc b/webrtc/modules/audio_processing/residual_echo_detector.cc
index 9586c15494ef93e7387c2f75e971c49862e19eca..9ac32e7312e51bb64c53b5a48ed9e66d4ab5c3a4 100644
--- a/webrtc/modules/audio_processing/residual_echo_detector.cc
+++ b/webrtc/modules/audio_processing/residual_echo_detector.cc
@@ -45,19 +45,14 @@ void ResidualEchoDetector::AnalyzeCaptureAudio(const AudioBuffer* audio) {
                                   audio->num_frames_per_band()));
 }
 
-void ResidualEchoDetector::Initialize(int sample_rate_hz) {
-  RTC_DCHECK(sample_rate_hz == AudioProcessing::kSampleRate8kHz ||
-             sample_rate_hz == AudioProcessing::kSampleRate16kHz ||
-             sample_rate_hz == AudioProcessing::kSampleRate32kHz ||
-             sample_rate_hz == AudioProcessing::kSampleRate48kHz);
-
-  detector_->Initialize(sample_rate_hz);
+void ResidualEchoDetector::Initialize() {
+  detector_->Initialize();
 }
 
 void ResidualEchoDetector::ReadQueuedRenderData() {
   while (render_signal_queue_->Remove(&capture_queue_buffer_)) {
     const size_t num_frames_per_band = capture_queue_buffer_.size();
-    detector_->BufferFarend(rtc::ArrayView<const float>(
+    detector_->BufferRender(rtc::ArrayView<const float>(
         capture_queue_buffer_.data(), num_frames_per_band));
   }
 }