Allow an external audio processing module to be used in WebRTC

webrtc/modules/audio_processing/audio_processing_impl.cc

Index: webrtc/modules/audio_processing/audio_processing_impl.cc
diff --git a/webrtc/modules/audio_processing/audio_processing_impl.cc b/webrtc/modules/audio_processing/audio_processing_impl.cc
index f3c55576cbfa5cb9fcd3cc271589c38e576ab886..e151c431317591b382eb585c8350efc735454e5d 100644
--- a/webrtc/modules/audio_processing/audio_processing_impl.cc
+++ b/webrtc/modules/audio_processing/audio_processing_impl.cc
@@ -321,7 +321,8 @@ AudioProcessing* AudioProcessing::Create(const webrtc::Config& config) {
 
 AudioProcessing* AudioProcessing::Create(const webrtc::Config& config,
                                          NonlinearBeamformer* beamformer) {
-  AudioProcessingImpl* apm = new AudioProcessingImpl(config, beamformer);
+  AudioProcessingImpl* apm =
+      new rtc::RefCountedObject<AudioProcessingImpl>(config, beamformer);
   if (apm->Initialize() != kNoError) {
     delete apm;
     apm = nullptr;