Reland of added functionality for specifying the initial signal level to use for the gain estimation

webrtc/modules/audio_processing/level_controller/gain_selector.cc

Index: webrtc/modules/audio_processing/level_controller/gain_selector.cc
diff --git a/webrtc/modules/audio_processing/level_controller/gain_selector.cc b/webrtc/modules/audio_processing/level_controller/gain_selector.cc
index 2accd7180c4e9a6e2b942e47d56d69297aafa176..cf90d8d26b44bb2167a1482fbdcfa31e1da930d0 100644
--- a/webrtc/modules/audio_processing/level_controller/gain_selector.cc
+++ b/webrtc/modules/audio_processing/level_controller/gain_selector.cc
@@ -15,7 +15,7 @@
 
 #include "webrtc/base/checks.h"
 #include "webrtc/modules/audio_processing/include/audio_processing.h"
-#include "webrtc/modules/audio_processing/level_controller/lc_constants.h"
+#include "webrtc/modules/audio_processing/level_controller/level_controller_constants.h"
 
 namespace webrtc {
 
@@ -42,10 +42,12 @@ void GainSelector::Initialize(int sample_rate_hz) {
 float GainSelector::GetNewGain(float peak_level,
                                float noise_energy,
                                float saturating_gain,
+                               bool gain_jumpstart,
                                SignalClassifier::SignalType signal_type) {
   RTC_DCHECK_LT(0.f, peak_level);
 
-  if (signal_type == SignalClassifier::SignalType::kHighlyNonStationary) {
+  if (signal_type == SignalClassifier::SignalType::kHighlyNonStationary ||
+      gain_jumpstart) {
     highly_nonstationary_signal_hold_counter_ = 100;
   } else {
     highly_nonstationary_signal_hold_counter_ =