Remove HTTP pipelining support.

chrome/chrome_tests.gypi

 # Copyright 2013 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.
 {
   'includes': [
     'js_unittest_vars.gypi',
   ],
   'targets': [
     {
       'target_name': 'interactive_ui_tests',
@@ skipping 1537 matching lines @@
         'test/data/webui/chrome_send_browsertest.h',
         'test/data/webui/chrome_send_browsertest.js',
         'test/data/webui/history_browsertest.js',
         'test/data/webui/history_ui_browsertest.cc',
         'test/data/webui/history_ui_browsertest.h',
         'test/data/webui/mock4js_browsertest.js',
         'test/data/webui/net_internals/bandwidth_view.js',
         'test/data/webui/net_internals/dns_view.js',
         'test/data/webui/net_internals/events_view.js',
         'test/data/webui/net_internals/hsts_view.js',
-        'test/data/webui/net_internals/http_pipeline_view.js',
         'test/data/webui/net_internals/log_util.js',
         'test/data/webui/net_internals/log_view_painter.js',
         'test/data/webui/net_internals/main.js',
         'test/data/webui/net_internals/net_internals_test.js',
         'test/data/webui/net_internals/prerender_view.js',
         'test/data/webui/net_internals/test_view.js',
         'test/data/webui/net_internals/timeline_view.js',
         'test/data/webui/net_internals/waterfall_view.js',
         'test/data/webui/ntp4.js',
         'test/data/webui/ntp4_browsertest.cc',
@@ skipping 1416 matching lines @@
             ['enable_webrtc==1', {
               'dependencies': [
                 '../third_party/libjingle/libjingle.gyp:libjingle_webrtc'
               ]
             }],
           ],
         }]
     }],
   ],  # 'conditions'
 }