diff --git a/.gn b/.gn
index 8a173ba495..e151f7cdc3 100644
--- a/.gn
+++ b/.gn
@@ -19,10 +19,7 @@ secondary_source = "//build/secondary/"
 # their includes checked for proper dependencies when you run either
 # "gn check" or "gn gen --check".
 # TODO(kjellander): Keep adding paths to this list as work in webrtc:5589 is done.
-check_targets = [
-  "//webrtc/voice_engine:level_indicator",
-  "//webrtc/modules/audio_mixer:audio_conference_mixer",
-]
+check_targets = [ "//webrtc/voice_engine:level_indicator" ]
 
 # These are the list of GN files that run exec_script. This whitelist exists
 # to force additional review for new uses of exec_script, which is strongly
diff --git a/webrtc/modules/audio_mixer/BUILD.gn b/webrtc/modules/audio_mixer/BUILD.gn
index 2449c54979..7ef27908be 100644
--- a/webrtc/modules/audio_mixer/BUILD.gn
+++ b/webrtc/modules/audio_mixer/BUILD.gn
@@ -72,11 +72,9 @@ source_set("audio_conference_mixer") {
   }
 
   deps = [
-    "../..:webrtc_common",
     "../../base:rtc_base_approved",
     "../../modules/audio_processing",
     "../../modules/utility",
     "../../system_wrappers",
-    "../../system_wrappers:system_wrappers_default",
   ]
 }
diff --git a/webrtc/modules/audio_mixer/new_audio_conference_mixer_impl.cc b/webrtc/modules/audio_mixer/new_audio_conference_mixer_impl.cc
index 48380fc550..5be76ec4d0 100644
--- a/webrtc/modules/audio_mixer/new_audio_conference_mixer_impl.cc
+++ b/webrtc/modules/audio_mixer/new_audio_conference_mixer_impl.cc
@@ -19,6 +19,7 @@
 #include "webrtc/modules/utility/include/audio_frame_operations.h"
 #include "webrtc/system_wrappers/include/critical_section_wrapper.h"
 #include "webrtc/system_wrappers/include/trace.h"
+#include "webrtc/voice_engine/utility.h"
 
 namespace webrtc {
 namespace {
@@ -141,8 +142,6 @@ NewAudioConferenceMixerImpl::NewAudioConferenceMixerImpl(int id)
   thread_checker_.DetachFromThread();
 }
 
-NewAudioConferenceMixerImpl::~NewAudioConferenceMixerImpl() {}
-
 bool NewAudioConferenceMixerImpl::Init() {
   crit_.reset(CriticalSectionWrapper::CreateCriticalSection());
   if (crit_.get() == NULL)
diff --git a/webrtc/modules/audio_mixer/new_audio_conference_mixer_impl.h b/webrtc/modules/audio_mixer/new_audio_conference_mixer_impl.h
index 3933350fed..ef93e6ff91 100644
--- a/webrtc/modules/audio_mixer/new_audio_conference_mixer_impl.h
+++ b/webrtc/modules/audio_mixer/new_audio_conference_mixer_impl.h
@@ -19,6 +19,7 @@
 #include "webrtc/base/thread_checker.h"
 #include "webrtc/engine_configurations.h"
 #include "webrtc/modules/audio_mixer/new_audio_conference_mixer.h"
+#include "webrtc/modules/audio_conference_mixer/source/memory_pool.h"
 #include "webrtc/modules/include/module_common_types.h"
 
 namespace webrtc {
@@ -63,8 +64,6 @@ class NewAudioConferenceMixerImpl : public NewAudioConferenceMixer {
 
   explicit NewAudioConferenceMixerImpl(int id);
 
-  ~NewAudioConferenceMixerImpl() override;
-
   // Must be called after ctor.
   bool Init();