Simplify CongestionController.

webrtc/audio/audio_send_stream_unittest.cc

Index: webrtc/audio/audio_send_stream_unittest.cc
diff --git a/webrtc/audio/audio_send_stream_unittest.cc b/webrtc/audio/audio_send_stream_unittest.cc
index bffbad541dfdbf14573428243a53246ea87e8ec6..d8ad82d1d42602e253778f4bf3a2aa984fb8f4db 100644
--- a/webrtc/audio/audio_send_stream_unittest.cc
+++ b/webrtc/audio/audio_send_stream_unittest.cc
@@ -22,7 +22,6 @@
 #include "webrtc/modules/remote_bitrate_estimator/include/mock/mock_remote_bitrate_estimator.h"
 #include "webrtc/test/mock_voe_channel_proxy.h"
 #include "webrtc/test/mock_voice_engine.h"
-#include "webrtc/video/call_stats.h"
 
 namespace webrtc {
 namespace test {
@@ -54,11 +53,7 @@ struct ConfigHelper {
   ConfigHelper()
       : simulated_clock_(123456),
         stream_config_(nullptr),
-        call_stats_(&simulated_clock_),
-        process_thread_(ProcessThread::Create("AudioTestThread")),
         congestion_controller_(&simulated_clock_,
-                               process_thread_.get(),
-                               &call_stats_,
                                &bitrate_observer_,
                                &remote_bitrate_observer_) {
     using testing::Invoke;
@@ -162,10 +157,8 @@ struct ConfigHelper {
   rtc::scoped_refptr<AudioState> audio_state_;
   AudioSendStream::Config stream_config_;
   testing::StrictMock<MockVoEChannelProxy>* channel_proxy_ = nullptr;
-  CallStats call_stats_;
   testing::NiceMock<MockBitrateObserver> bitrate_observer_;
   testing::NiceMock<MockRemoteBitrateObserver> remote_bitrate_observer_;
-  rtc::scoped_ptr<ProcessThread> process_thread_;
   CongestionController congestion_controller_;
 };
 }  // namespace