Hide the proxy socket address from the clients of ProxyResolvingClientSocket.

content/browser/renderer_host/p2p/socket_host_tcp.cc

Index: content/browser/renderer_host/p2p/socket_host_tcp.cc
diff --git a/content/browser/renderer_host/p2p/socket_host_tcp.cc b/content/browser/renderer_host/p2p/socket_host_tcp.cc
index 79f7b14b0b867e34c784a483c24851c9199ea6f8..b5a927699a3c8687dc9eb39c3f712fd4c6b51b7a 100644
--- a/content/browser/renderer_host/p2p/socket_host_tcp.cc
+++ b/content/browser/renderer_host/p2p/socket_host_tcp.cc
@@ -256,6 +256,8 @@ bool P2PSocketHostTcpBase::DoSendSocketCreateMsg() {
   VLOG(1) << "Local address: " << local_address.ToString();
 
   net::IPEndPoint remote_address;
+
+  // |remote_address| could be empty if it is connected through a proxy.
   result = socket_->GetPeerAddress(&remote_address);
   if (result < 0) {
     LOG(ERROR) << "P2PSocketHostTcpBase::OnConnected: unable to get peer"
@@ -264,14 +266,15 @@ bool P2PSocketHostTcpBase::DoSendSocketCreateMsg() {
     return false;
   }
   VLOG(1) << "Remote address: " << remote_address.ToString();
-  if (remote_address_.ip_address.address().empty()) {
+  if (remote_address_.ip_address.address().empty() &&
+      !remote_address.address().empty()) {
     // Save |remote_address| if address is empty.
     remote_address_.ip_address = remote_address;
   }
 
   // If we are not doing TLS, we are ready to send data now.
   // In case of TLS SignalConnect will be sent only after TLS handshake is
-  // successfull. So no buffering will be done at socket handlers if any
+  // successful. So no buffering will be done at socket handlers if any
   // packets sent before that by the application.
   message_sender_->Send(new P2PMsg_OnSocketCreated(
       id_, local_address, remote_address));