Revert "Revert of Update the BWE when the network route changes. (patchset #5 id:180001 of https://…

webrtc/p2p/base/port.cc

Index: webrtc/p2p/base/port.cc
diff --git a/webrtc/p2p/base/port.cc b/webrtc/p2p/base/port.cc
index 909843c62faae319cbec8975c201abf233d4f16d..ece8f3567419044886587811600d07cff150bf7e 100644
--- a/webrtc/p2p/base/port.cc
+++ b/webrtc/p2p/base/port.cc
@@ -1497,7 +1497,7 @@ ProxyConnection::ProxyConnection(Port* port,
 
 int ProxyConnection::Send(const void* data, size_t size,
                           const rtc::PacketOptions& options) {
-  if (write_state_ == STATE_WRITE_INIT || write_state_ == STATE_WRITE_TIMEOUT) {
+  if (!ReadyToSendMedia()) {
     error_ = EWOULDBLOCK;
     return SOCKET_ERROR;
   }