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

third_party/WebKit/Source/devtools/front_end/profiler/HeapProfileView.js

 // Copyright 2016 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.
 
 /**
  * @constructor
  * @implements {WebInspector.Searchable}
  * @extends {WebInspector.ProfileView}
  * @param {!WebInspector.SamplingHeapProfileHeader} profileHeader
  */
 WebInspector.HeapProfileView = function(profileHeader)
 {
+    WebInspector.ProfileView.call(this);
     this._profileHeader = profileHeader;
     this.profile = new WebInspector.SamplingHeapProfileModel(profileHeader._profile || profileHeader.protocolProfile());
     this.adjustedTotal = this.profile.total;
     var views = [
         WebInspector.ProfileView.ViewTypes.Flame,
         WebInspector.ProfileView.ViewTypes.Heavy,
         WebInspector.ProfileView.ViewTypes.Tree
     ];
-    WebInspector.ProfileView.call(this, new WebInspector.HeapProfileView.NodeFormatter(this), views);
+    this.initialize(new WebInspector.HeapProfileView.NodeFormatter(this), views);
 };
 
 WebInspector.HeapProfileView.prototype = {
     /**
      * @override
      * @param {string} columnId
      * @return {string}
      */
     columnHeader: function(columnId)
     {
@@ skipping 205 matching lines @@
     __proto__: WebInspector.ProfileNode.prototype
 };
 
 /**
  * @constructor
  * @extends {WebInspector.ProfileTreeModel}
  * @param {!HeapProfilerAgent.SamplingHeapProfile} profile
  */
 WebInspector.SamplingHeapProfileModel = function(profile)
 {
-    WebInspector.ProfileTreeModel.call(this, this._translateProfileTree(profile.head));
-};
+    WebInspector.ProfileTreeModel.call(this);
+    this.initialize(translateProfileTree(profile.head));
 
-WebInspector.SamplingHeapProfileModel.prototype = {
     /**
      * @param {!HeapProfilerAgent.SamplingHeapProfileNode} root
      * @return {!WebInspector.SamplingHeapProfileNode}
      */
-    _translateProfileTree: function(root)
+    function translateProfileTree(root)
     {
         var resultRoot = new WebInspector.SamplingHeapProfileNode(root);
         var targetNodeStack = [resultRoot];
         var sourceNodeStack = [root];
         while (sourceNodeStack.length) {
             var sourceNode = sourceNodeStack.pop();
             var parentNode = targetNodeStack.pop();
             parentNode.children = sourceNode.children.map(child => new WebInspector.SamplingHeapProfileNode(child));
             sourceNodeStack.push.apply(sourceNodeStack, sourceNode.children);
             targetNodeStack.push.apply(targetNodeStack, parentNode.children);
         }
         return resultRoot;
-    },
+    }
+};
+
+WebInspector.SamplingHeapProfileModel.prototype = {
 
     __proto__: WebInspector.ProfileTreeModel.prototype
 };
 
 /**
  * @constructor
  * @implements {WebInspector.ProfileDataGridNode.Formatter}
  * @param {!WebInspector.ProfileView} profileView
  */
 WebInspector.HeapProfileView.NodeFormatter = function(profileView)
@@ skipping 152 matching lines @@
         var linkifier = new WebInspector.Linkifier();
         var link = linkifier.maybeLinkifyConsoleCallFrame(this._target, node.callFrame);
         if (link)
             pushEntryInfoRow(WebInspector.UIString("URL"), link.textContent);
         linkifier.dispose();
         return WebInspector.ProfileView.buildPopoverTable(entryInfo);
     },
 
     __proto__: WebInspector.ProfileFlameChartDataProvider.prototype
 };