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

net/socket/tcp_client_socket_win.h

Index: net/socket/tcp_client_socket_win.h
===================================================================
--- net/socket/tcp_client_socket_win.h	(revision 86260)
+++ net/socket/tcp_client_socket_win.h	(working copy)
@@ -8,6 +8,7 @@
 
 #include <winsock2.h>
 
+#include "base/time.h"
 #include "base/threading/non_thread_safe.h"
 #include "net/base/address_list.h"
 #include "net/base/completion_callback.h"
@@ -50,6 +51,9 @@
   virtual bool WasEverUsed() const;
   virtual bool UsingTCPFastOpen() const;
 
+  virtual int NumBytesRead() const { return num_bytes_read_; }
+  virtual double GetRTTInMs() const { return rtt_ms_; }
+
   // Socket methods:
   // Multiple outstanding requests are not supported.
   // Full duplex mode (reading and writing at the same time) is supported
@@ -136,6 +140,10 @@
   // histograms.
   UseHistory use_history_;
 
+  base::Time connect_start_time_;
+  int num_bytes_read_;
+  double rtt_ms_;
+
   DISALLOW_COPY_AND_ASSIGN(TCPClientSocketWin);
 };