Remove experimental code to pick the "warmest" socket

net/http/http_stream.h

 // Copyright (c) 2012 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 provides an abstraction for a basic http streams, http pipelining
 // implementations, and SPDY.  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
 // other hand leave the transport socket management to the SpdySession.
 
@@ skipping 18 matching lines @@
   // Queries the UploadDataStream for its progress (bytes sent).
   virtual UploadProgress GetUploadProgress() const = 0;
 
   // Returns a new (not initialized) stream using the same underlying
   // connection and invalidates the old stream - no further methods should be
   // called on the old stream.  The caller should ensure that the response body
   // from the previous request is drained before calling this method.  If the
   // subclass does not support renewing the stream, NULL is returned.
   virtual HttpStream* RenewStreamForAuth() = 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_