Stopped using the NetEqDecoder enum internally in NetEq.

webrtc/modules/audio_coding/neteq/delay_manager.cc

Index: webrtc/modules/audio_coding/neteq/delay_manager.cc
diff --git a/webrtc/modules/audio_coding/neteq/delay_manager.cc b/webrtc/modules/audio_coding/neteq/delay_manager.cc
index 5ccb81c3f1e9592ab54ec6bf5a8a22947e18126d..a6efdab8dccc0ca01e727140b706ecb77a6cacc7 100644
--- a/webrtc/modules/audio_coding/neteq/delay_manager.cc
+++ b/webrtc/modules/audio_coding/neteq/delay_manager.cc
@@ -371,12 +371,8 @@ int DelayManager::TargetLevel() const {
   return target_level_;
 }
 
-void DelayManager::LastDecoderType(NetEqDecoder decoder_type) {
-  if (decoder_type == NetEqDecoder::kDecoderAVT ||
-      decoder_type == NetEqDecoder::kDecoderCNGnb ||
-      decoder_type == NetEqDecoder::kDecoderCNGwb ||
-      decoder_type == NetEqDecoder::kDecoderCNGswb32kHz ||
-      decoder_type == NetEqDecoder::kDecoderCNGswb48kHz) {
+void DelayManager::LastDecodedWasCngOrDtmf(bool it_was) {
+  if (it_was) {
     last_pack_cng_or_dtmf_ = 1;
   } else if (last_pack_cng_or_dtmf_ != 0) {
     last_pack_cng_or_dtmf_ = -1;