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

net/http/http_network_transaction.h

Index: net/http/http_network_transaction.h
===================================================================
--- net/http/http_network_transaction.h	(revision 88319)
+++ net/http/http_network_transaction.h	(working copy)
@@ -146,6 +146,10 @@
   // Record histogram of latency (durations until last byte received).
   void LogTransactionMetrics() const;
 
+  // Record histogram of number of round trips taken to download the full
+  // response body vs bytes transferred.
+  void LogNumRttVsBytesMetrics() const;
+
   // Writes a log message to help debugging in the field when we block a proxy
   // response to a CONNECT request.
   void LogBlockedTunnelResponse(int response_code) const;