Notify NQE of TCP RTT values

extensions/browser/api/cast_channel/cast_socket.cc

Index: extensions/browser/api/cast_channel/cast_socket.cc
diff --git a/extensions/browser/api/cast_channel/cast_socket.cc b/extensions/browser/api/cast_channel/cast_socket.cc
index 6a330e3d6289ebf21e5aa471e3c13238f29284a0..239bc90bddddeaa7503868553bb939343bd9e22c 100644
--- a/extensions/browser/api/cast_channel/cast_socket.cc
+++ b/extensions/browser/api/cast_channel/cast_socket.cc
@@ -175,7 +175,7 @@ bool CastSocketImpl::audio_only() const {
 scoped_ptr<net::TCPClientSocket> CastSocketImpl::CreateTcpSocket() {
   net::AddressList addresses(ip_endpoint_);
   return scoped_ptr<net::TCPClientSocket>(
-      new net::TCPClientSocket(addresses, net_log_, net_log_source_));
+      new net::TCPClientSocket(addresses, nullptr, net_log_, net_log_source_));
   // Options cannot be set on the TCPClientSocket yet, because the
   // underlying platform socket will not be created until Bind()
   // or Connect() is called.