[DevTools] Save as HAR: classify time before network activity as "blocked".

Source/devtools/front_end/NetworkRequest.js

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 34 matching lines @@
     this._documentURL = documentURL;
     this._frameId = frameId;
     this._loaderId = loaderId;
     this._startTime = -1;
     this._endTime = -1;
 
     this.statusCode = 0;
     this.statusText = "";
     this.requestMethod = "";
     this.requestTime = 0;
-    this.receiveHeadersEnd = 0;
 
     this._type = WebInspector.resourceTypes.Other;
     this._contentEncoded = false;
     this._pendingContentCallbacks = [];
     this._frames = [];
 
     this._responseHeaderValues = {};
 }
 
 WebInspector.NetworkRequest.Events = {
@@ skipping 140 matching lines @@
     get latency()
     {
         if (this._responseReceivedTime === -1 || this._startTime === -1)
             return -1;
         return this._responseReceivedTime - this._startTime;
     },
 
     /**
      * @return {number}
      */
-    get receiveDuration()
-    {
-        if (this._endTime === -1 || this._responseReceivedTime === -1)
-            return -1;
-        return this._endTime - this._responseReceivedTime;
-    },
-
-    /**
-     * @return {number}
-     */
     get resourceSize()
     {
         return this._resourceSize || 0;
     },
 
     set resourceSize(x)
     {
         this._resourceSize = x;
     },
 
@@ skipping 737 matching lines @@
      */
     _pushFrame: function(frameOrError)
     {
         if (this._frames.length >= 100)
             this._frames.splice(0, 10);
         this._frames.push(frameOrError);
     },
 
     __proto__: WebInspector.Object.prototype
 }