Start probes only after network is connected.

webrtc/modules/congestion_controller/include/congestion_controller.h

Index: webrtc/modules/congestion_controller/include/congestion_controller.h
diff --git a/webrtc/modules/congestion_controller/include/congestion_controller.h b/webrtc/modules/congestion_controller/include/congestion_controller.h
index eb6db3371226352bc921889226084c985b6b3d05..b6dac9eee8f99ea01a7cee7a13c9e5fc8b0c6f07 100644
--- a/webrtc/modules/congestion_controller/include/congestion_controller.h
+++ b/webrtc/modules/congestion_controller/include/congestion_controller.h
@@ -23,6 +23,7 @@
 #include "webrtc/modules/remote_bitrate_estimator/remote_estimator_proxy.h"
 
 namespace rtc {
+struct NetworkRoute;
 struct SentPacket;
 }
 
@@ -66,18 +67,12 @@ class CongestionController : public CallStatsObserver, public Module {
                        std::unique_ptr<PacedSender> pacer);
   virtual ~CongestionController();
 
-  virtual void SetBweBitrates(int min_bitrate_bps,
-                              int start_bitrate_bps,
+  virtual void SetBweBitrates(int start_bitrate_bps,
+                              int min_bitrate_bps,
                               int max_bitrate_bps);
-  // Resets both the BWE state and the bitrate estimator. Note the first
-  // argument is the bitrate_bps.
-  virtual void ResetBweAndBitrates(int bitrate_bps,
-                                   int min_bitrate_bps,
-                                   int max_bitrate_bps);
-  virtual void SignalNetworkState(NetworkState state);
+  virtual void OnNetworkRouteChanged(const rtc::NetworkRoute& route);
   virtual BitrateController* GetBitrateController() const;
-  virtual RemoteBitrateEstimator* GetRemoteBitrateEstimator(
-      bool send_side_bwe);
+  virtual RemoteBitrateEstimator* GetRemoteBitrateEstimator(bool send_side_bwe);
   virtual int64_t GetPacerQueuingDelayMs() const;
   virtual PacedSender* pacer() { return pacer_.get(); }
   virtual PacketRouter* packet_router() { return packet_router_.get(); }
@@ -125,6 +120,7 @@ class CongestionController : public CallStatsObserver, public Module {
   const std::unique_ptr<RateLimiter> retransmission_rate_limiter_;
   RemoteEstimatorProxy remote_estimator_proxy_;
   TransportFeedbackAdapter transport_feedback_adapter_;
+  int start_bitrate_bps_;
   int min_bitrate_bps_;
   int max_bitrate_bps_;
   rtc::CriticalSection critsect_;