Remove HTTP pipelining support.

chrome/browser/resources/net_internals/main.js

 // 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.
 
 /**
  * Dictionary of constants (Initialized soon after loading by data from browser,
  * updated on load log).  The *Types dictionaries map strings to numeric IDs,
  * while the *TypeNames are the other way around.
  */
 var EventType = null;
@@ skipping 173 matching lines @@
       addTab(ExportView);
       addTab(ImportView);
       addTab(ProxyView);
       addTab(EventsView);
       addTab(WaterfallView);
       addTab(TimelineView);
       addTab(DnsView);
       addTab(SocketsView);
       addTab(SpdyView);
       addTab(QuicView);
-      addTab(HttpPipelineView);
       addTab(HttpCacheView);
       addTab(ModulesView);
       addTab(TestView);
       addTab(CrosLogVisualizerView);
       addTab(HSTSView);
       addTab(LogsView);
       addTab(BandwidthView);
       addTab(PrerenderView);
       addTab(CrosView);
 
@@ skipping 172 matching lines @@
  * Returns a string representation of |family|.
  * @param {number} family An AddressFamily
  * @return {string} A representation of the given family.
  */
 function addressFamilyToString(family) {
   var str = getKeyWithValue(AddressFamily, family);
   // All the address family start with ADDRESS_FAMILY_*.
   // Strip that prefix since it is redundant and only clutters the output.
   return str.replace(/^ADDRESS_FAMILY_/, '');
 }