Simplify CongestionController.

webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.h

Index: webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.h
diff --git a/webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.h b/webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.h
index b29d6bee810b14c7941deadc5ef181c78ccebdd5..1c8f6f36fe1f9f878a95534d96df386739c5b94a 100644
--- a/webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.h
+++ b/webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.h
@@ -28,9 +28,7 @@ class TransportFeedbackAdapter : public TransportFeedbackObserver,
                                  public CallStatsObserver,
                                  public RemoteBitrateObserver {
  public:
-  TransportFeedbackAdapter(BitrateController* bitrate_controller,
-                           Clock* clock,
-                           ProcessThread* process_thread);
+  TransportFeedbackAdapter(BitrateController* bitrate_controller, Clock* clock);
   virtual ~TransportFeedbackAdapter();
 
   void AddPacket(uint16_t sequence_number,
@@ -47,16 +45,16 @@ class TransportFeedbackAdapter : public TransportFeedbackObserver,
     return bitrate_estimator_.get();
   }
 
+  void OnRttUpdate(int64_t avg_rtt_ms, int64_t max_rtt_ms) override;
+
  private:
   void OnReceiveBitrateChanged(const std::vector<uint32_t>& ssrcs,
                                uint32_t bitrate) override;
-  void OnRttUpdate(int64_t avg_rtt_ms, int64_t max_rtt_ms) override;
 
   rtc::CriticalSection lock_;
   SendTimeHistory send_time_history_ GUARDED_BY(&lock_);
   BitrateController* bitrate_controller_;
   rtc::scoped_ptr<RemoteBitrateEstimator> bitrate_estimator_;
-  ProcessThread* const process_thread_;
   Clock* const clock_;
   int64_t current_offset_ms_;
   int64_t last_timestamp_us_;