Revert 90373 - Warmth of a connection (cwnd) is estimated by the amount of data written to the so...

net/http/http_stream.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // HttpStream is an interface for reading and writing data to an HttpStream that
 // keeps the client agnostic of the actual underlying transport layer.  This
 // provides an abstraction for both a basic http stream as well as http
 // pipelining implementations.  The HttpStream subtype is expected to manage the
 // underlying transport appropriately.  For example, a non-pipelined HttpStream
 // would return the transport socket to the pool for reuse.  SPDY streams on the
@@ skipping 117 matching lines @@
 
   // Get the SSLCertRequestInfo associated with this stream's connection.
   // This should only be called for streams over SSL sockets, otherwise the
   // behavior is undefined.
   virtual void GetSSLCertRequestInfo(SSLCertRequestInfo* cert_request_info) = 0;
 
   // HACK(willchan): Really, we should move the HttpResponseDrainer logic into
   // the HttpStream implementation. This is just a quick hack.
   virtual bool IsSpdyHttpStream() const = 0;
 
-  // Record histogram of number of round trips taken to download the full
-  // response body vs bytes transferred.
-  virtual void LogNumRttVsBytesMetrics() const = 0;
-
  private:
   DISALLOW_COPY_AND_ASSIGN(HttpStream);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_STREAM_H_