Reset the BWE when the network changes

webrtc/p2p/base/p2ptransportchannel.cc

Index: webrtc/p2p/base/p2ptransportchannel.cc
diff --git a/webrtc/p2p/base/p2ptransportchannel.cc b/webrtc/p2p/base/p2ptransportchannel.cc
index 759fd461db20f4fd67f52a7575ed359a4dec2b18..4952364e801bad2b6c40e4b984a398a531a6626d 100644
--- a/webrtc/p2p/base/p2ptransportchannel.cc
+++ b/webrtc/p2p/base/p2ptransportchannel.cc
@@ -1157,9 +1157,11 @@ void P2PTransportChannel::SwitchBestConnectionTo(Connection* conn) {
     LOG_J(LS_INFO, this) << "New best connection: "
                          << best_connection_->ToString();
     SignalRouteChange(this, best_connection_->remote_candidate());
+

[stefan-webrtc, 2016/03/17 12:48:19]

Remove empty line

[honghaiz3, 2016/03/23 19:55:40]

Done.

   } else {
     LOG_J(LS_INFO, this) << "No best connection";
   }
+  SignalBestConnectionChanged(this, best_connection_);
 }
 
 // Warning: UpdateState should eventually be called whenever a connection