Deciding best connection to schedule requests on based on cwnd and idle time

net/socket/tcp_client_socket_win.cc

Index: net/socket/tcp_client_socket_win.cc
===================================================================
--- net/socket/tcp_client_socket_win.cc	(revision 86260)
+++ net/socket/tcp_client_socket_win.cc	(working copy)
@@ -331,6 +331,7 @@
 
   core_->write_overlapped_.hEvent = WSACreateEvent();
 
+  connect_start_time_ = base::Time::Now();
   if (!connect(socket_, ai->ai_addr, static_cast<int>(ai->ai_addrlen))) {
     // Connected without waiting!
     //
@@ -369,6 +370,9 @@
   net_log_.EndEvent(NetLog::TYPE_TCP_CONNECT_ATTEMPT, params);
 
   if (result == OK) {
+    rtt_ms_ = static_cast<double>((base::Time::Now() -
+                                   connect_start_time_).InMicroseconds())
+        / 1000.0;
     use_history_.set_was_ever_connected();
     return OK;  // Done!
   }
@@ -535,6 +539,7 @@
       base::MemoryDebug::MarkAsInitialized(core_->read_buffer_.buf, num);
       base::StatsCounter read_bytes("tcp.read_bytes");
       read_bytes.Add(num);
+      num_bytes_read_ += num;
       if (num > 0)
         use_history_.set_was_used_to_convey_data();
       LogByteTransfer(net_log_, NetLog::TYPE_SOCKET_BYTES_RECEIVED, num,