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

net/http/http_proxy_client_socket.cc

Index: net/http/http_proxy_client_socket.cc
===================================================================
--- net/http/http_proxy_client_socket.cc	(revision 86260)
+++ net/http/http_proxy_client_socket.cc	(working copy)
@@ -56,6 +56,7 @@
   if (!user_agent.empty())
     request_.extra_headers.SetHeader(HttpRequestHeaders::kUserAgent,
                                      user_agent);
+  rtt_ms_ = transport_->socket()->GetRTTMs();
 }
 
 HttpProxyClientSocket::~HttpProxyClientSocket() {
@@ -182,7 +183,9 @@
     return ERR_TUNNEL_CONNECTION_FAILED;
   }
 
-  return transport_->socket()->Read(buf, buf_len, callback);
+  int num = transport_->socket()->Read(buf, buf_len, callback);
+  num_bytes_read_ += num;
+  return num;
 }
 
 int HttpProxyClientSocket::Write(IOBuffer* buf, int buf_len,