DevTools: do not allow using 'this' before call into super.

third_party/WebKit/Source/devtools/front_end/network/ResourceWebSocketFrameView.js

 /*
  * Copyright (C) 2012 Research In Motion Limited. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 180 matching lines @@
 };
 
 /**
  * @constructor
  * @extends {WebInspector.SortableDataGridNode}
  * @param {string} url
  * @param {!WebInspector.NetworkRequest.WebSocketFrame} frame
  */
 WebInspector.ResourceWebSocketFrameNode = function(url, frame)
 {
-    this._frame = frame;
-    this._dataText = frame.text;
-    this._url = url;
+    var dataText = frame.text;
     var length = frame.text.length;
     var time = new Date(frame.time * 1000);
     var timeText = ("0" + time.getHours()).substr(-2) + ":" + ("0" + time.getMinutes()).substr(-2) + ":" + ("0" + time.getSeconds()).substr(-2) + "." + ("00" + time.getMilliseconds()).substr(-3);
     var timeNode = createElement("div");
     timeNode.createTextChild(timeText);
     timeNode.title = time.toLocaleString();
 
-    this._isTextFrame = frame.opCode === WebInspector.ResourceWebSocketFrameView.OpCodes.TextFrame;
-    if (!this._isTextFrame)
-        this._dataText = WebInspector.ResourceWebSocketFrameView.opCodeDescription(frame.opCode, frame.mask);
+    var isTextFrame = frame.opCode === WebInspector.ResourceWebSocketFrameView.OpCodes.TextFrame;
+    if (!isTextFrame)
+        dataText = WebInspector.ResourceWebSocketFrameView.opCodeDescription(frame.opCode, frame.mask);
 
-    WebInspector.SortableDataGridNode.call(this, {data: this._dataText, length: length, time: timeNode});
+    WebInspector.SortableDataGridNode.call(this, {data: dataText, length: length, time: timeNode});
+
+    this._url = url;
+    this._frame = frame;
+    this._isTextFrame = isTextFrame;
+    this._dataText = dataText;
 };
 
 WebInspector.ResourceWebSocketFrameNode.prototype = {
     /**
      * @override
      */
     createCells: function()
     {
         var element = this._element;
         element.classList.toggle("websocket-frame-view-row-error", this._frame.type === WebInspector.NetworkRequest.WebSocketFrameType.Error);
@@ skipping 24 matching lines @@
 
 /**
  * @param {!WebInspector.ResourceWebSocketFrameNode} a
  * @param {!WebInspector.ResourceWebSocketFrameNode} b
  * @return {number}
  */
 WebInspector.ResourceWebSocketFrameNodeTimeComparator = function(a, b)
 {
     return a._frame.time - b._frame.time;
 };