DevTools: fix disposing of main debugger script mappings

third_party/WebKit/Source/devtools/front_end/bindings/ResourceScriptMapping.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 22 matching lines @@
  * @implements {WebInspector.DebuggerSourceMapping}
  * @param {!WebInspector.DebuggerModel} debuggerModel
  * @param {!WebInspector.Workspace} workspace
  * @param {!WebInspector.NetworkMapping} networkMapping
  * @param {!WebInspector.DebuggerWorkspaceBinding} debuggerWorkspaceBinding
  */
 WebInspector.ResourceScriptMapping = function(debuggerModel, workspace, networkMapping, debuggerWorkspaceBinding)
 {
     this._target = debuggerModel.target();
     this._debuggerModel = debuggerModel;
-    this._workspace = workspace;
-    this._workspace.addEventListener(WebInspector.Workspace.Events.UISourceCodeAdded, this._uiSourceCodeAdded, this);
-    this._workspace.addEventListener(WebInspector.Workspace.Events.UISourceCodeRemoved, this._uiSourceCodeRemoved, this);
     this._networkMapping = networkMapping;
     this._debuggerWorkspaceBinding = debuggerWorkspaceBinding;
     /** @type {!Array.<!WebInspector.UISourceCode>} */
     this._boundUISourceCodes = [];
 
     /** @type {!Map.<!WebInspector.UISourceCode, !WebInspector.ResourceScriptFile>} */
     this._uiSourceCodeToScriptFile = new Map();
 
-    debuggerModel.addEventListener(WebInspector.DebuggerModel.Events.GlobalObjectCleared, this._debuggerReset, this);
+    this._eventListeners = [
+        debuggerModel.addEventListener(WebInspector.DebuggerModel.Events.GlobalObjectCleared, this._debuggerReset, this),
+        workspace.addEventListener(WebInspector.Workspace.Events.UISourceCodeAdded, this._uiSourceCodeAdded, this),
+        workspace.addEventListener(WebInspector.Workspace.Events.UISourceCodeRemoved, this._uiSourceCodeRemoved, this)
+    ];
 }
 
 WebInspector.ResourceScriptMapping.prototype = {
     /**
      * @override
      * @param {!WebInspector.DebuggerModel.Location} rawLocation
      * @return {?WebInspector.UILocation}
      */
     rawLocationToUILocation: function(rawLocation)
     {
@@ skipping 195 matching lines @@
     _debuggerReset: function()
     {
         var sourceCodes = this._boundUISourceCodes;
         this._boundUISourceCodes = [];
         sourceCodes.forEach(this._unbindUISourceCode.bind(this));
         console.assert(!this._uiSourceCodeToScriptFile.size);
     },
 
     dispose: function()
     {
+        WebInspector.EventTarget.removeEventListeners(this._eventListeners);
         this._debuggerReset();
-        this._workspace.removeEventListener(WebInspector.Workspace.Events.UISourceCodeAdded, this._uiSourceCodeAdded, this);
-        this._workspace.removeEventListener(WebInspector.Workspace.Events.UISourceCodeRemoved, this._uiSourceCodeRemoved, this);
     }
-
 }
 
 /**
  * @constructor
  * @extends {WebInspector.Object}
  * @param {!WebInspector.ResourceScriptMapping} resourceScriptMapping
  * @param {!WebInspector.UISourceCode} uiSourceCode
  * @param {!Array.<!WebInspector.Script>} scripts
  */
 WebInspector.ResourceScriptFile = function(resourceScriptMapping, uiSourceCode, scripts)
@@ skipping 197 matching lines @@
     /**
      * @return {boolean}
      */
     hasSourceMapURL: function()
     {
         return this._script && !!this._script.sourceMapURL;
     },
 
     __proto__: WebInspector.Object.prototype
 }