Add NACK rate throttling for audio channels.

webrtc/test/call_test.cc

Index: webrtc/test/call_test.cc
diff --git a/webrtc/test/call_test.cc b/webrtc/test/call_test.cc
index 919ebe812b23ea624eebbf8600a293426b91f66c..1434133d41863eb9cf7fa7e0991c34c5ce080e0f 100644
--- a/webrtc/test/call_test.cc
+++ b/webrtc/test/call_test.cc
@@ -16,6 +16,8 @@
 #include "webrtc/test/testsupport/fileutils.h"
 #include "webrtc/voice_engine/include/voe_base.h"
 #include "webrtc/voice_engine/include/voe_codec.h"
+#include "webrtc/voice_engine/voice_engine_impl.h"
+#include "webrtc/voice_engine/channel_proxy.h"
 
 namespace webrtc {
 namespace test {
@@ -30,6 +32,7 @@ CallTest::CallTest()
       video_send_stream_(nullptr),
       audio_send_config_(nullptr),
       audio_send_stream_(nullptr),
+      audio_send_channel_proxy_(nullptr),
       fake_encoder_(clock_),
       num_video_streams_(1),
       num_audio_streams_(0),
@@ -108,8 +111,10 @@ void CallTest::RunBaseTest(BaseTest* test) {
 
   DestroyStreams();
   DestroyCalls();
-  if (num_audio_streams_ > 0)
+  if (num_audio_streams_ > 0) {
+    audio_send_channel_proxy_.reset();
     DestroyVoiceEngines();
+  }
 }
 
 void CallTest::Start() {
@@ -317,6 +322,10 @@ void CallTest::CreateVoiceEngines() {
   voe_send_.channel_id = voe_send_.base->CreateChannel(voe_config);
   EXPECT_GE(voe_send_.channel_id, 0);
 
+  audio_send_channel_proxy_ =
+      static_cast<VoiceEngineImpl*>(voe_send_.voice_engine)
+          ->GetChannelProxy(voe_send_.channel_id);
+
   voe_recv_.voice_engine = VoiceEngine::Create();
   voe_recv_.base = VoEBase::GetInterface(voe_recv_.voice_engine);
   voe_recv_.codec = VoECodec::GetInterface(voe_recv_.voice_engine);