TcpPort Reconnect should inform upper layer to start sending again

webrtc/p2p/base/tcpport.cc

Index: webrtc/p2p/base/tcpport.cc
diff --git a/webrtc/p2p/base/tcpport.cc b/webrtc/p2p/base/tcpport.cc
index 5c9e0425c80fc3d9ae138288d417ff41c08c7696..819dfdef9d33a93a4452863152dedeeae52ceac0 100644
--- a/webrtc/p2p/base/tcpport.cc
+++ b/webrtc/p2p/base/tcpport.cc
@@ -355,10 +355,16 @@ int TCPConnection::GetError() {
 
 void TCPConnection::OnConnectionRequestResponse(ConnectionRequest* req,
                                                 StunMessage* response) {
-  // Once we receive a binding response, we are really writable, and not just
-  // pretending to be writable.
-  pretending_to_be_writable_ = false;
+  // Process the STUN response before we inform upper layer ready to send.
   Connection::OnConnectionRequestResponse(req, response);
+
+  // If we're in the state of pretending to be writeable, we should inform the
+  // upper layer it's ready to send again as previous EWOULDLBLOCK from socket
+  // would have stopped the outgoing stream.
+  if (pretending_to_be_writable_) {
+    Connection::OnReadyToSend();
+  }
+  pretending_to_be_writable_ = false;
   ASSERT(write_state() == STATE_WRITABLE);
 }