Remove HTTP pipelining support.

chrome/browser/resources/net_internals/http_pipeline_view.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.
-
-/**
- * This view displays a summary of the state of each HTTP pipelined connection,
- * and has links to display them in the events tab.
- */
-var HttpPipelineView = (function() {
-  'use strict';
-
-  // We inherit from DivView.
-  var superClass = DivView;
-
-  /**
-   * @constructor
-   */
-  function HttpPipelineView() {
-    assertFirstConstructorCall(HttpPipelineView);
-
-    // Call superclass's constructor.
-    superClass.call(this, HttpPipelineView.MAIN_BOX_ID);
-
-    g_browser.addHttpPipeliningStatusObserver(this, true);
-  }
-
-  HttpPipelineView.TAB_ID = 'tab-handle-http-pipeline';
-  HttpPipelineView.TAB_NAME = 'Pipelining';
-  HttpPipelineView.TAB_HASH = '#httpPipeline';
-
-  // IDs for special HTML elements in http_pipeline_view.html
-  HttpPipelineView.MAIN_BOX_ID = 'http-pipeline-view-tab-content';
-  HttpPipelineView.ENABLED_SPAN_ID = 'http-pipeline-view-enabled-span';
-  HttpPipelineView.KNOWN_HOSTS_TABLE_ID =
-      'http-pipeline-view-known-hosts-table';
-
-  cr.addSingletonGetter(HttpPipelineView);
-
-  HttpPipelineView.prototype = {
-    // Inherit the superclass's methods.
-    __proto__: superClass.prototype,
-
-    onLoadLogFinish: function(data) {
-      return this.onHttpPipeliningStatusChanged(data.httpPipeliningStatus);
-    },
-
-    /**
-     * Displays information on the global HTTP pipelining status.
-     */
-    onHttpPipeliningStatusChanged: function(httpPipeliningStatus) {
-      if (!httpPipeliningStatus)
-        return false;
-      var input = new JsEvalContext(httpPipeliningStatus);
-      jstProcess(input, $(HttpPipelineView.MAIN_BOX_ID));
-      // Hide view in loaded logs if pipelining isn't enabled.
-      return httpPipeliningStatus.pipelining_enabled;
-    },
-  };
-
-  return HttpPipelineView;
-})();