DevTools: use eventListener arrays to avoid memory leaks in dispose methods

third_party/WebKit/Source/devtools/front_end/workspace/IsolatedFileSystemManager.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 338 matching lines @@
         var requestId = /** @type {number} */ (event.data["requestId"]);
         var files = /** @type {!Array.<string>} */ (event.data["files"]);
 
         var callback = this._callbacks.get(requestId);
         if (!callback)
             return;
         callback.call(null, files);
         this._callbacks.delete(requestId);
     },
 
-    dispose: function()
-    {
-        InspectorFrontendHost.events.removeEventListener(InspectorFrontendHostAPI.Events.IndexingTotalWorkCalculated, this._onIndexingTotalWorkCalculated, this);
-        InspectorFrontendHost.events.removeEventListener(InspectorFrontendHostAPI.Events.IndexingWorked, this._onIndexingWorked, this);
-        InspectorFrontendHost.events.removeEventListener(InspectorFrontendHostAPI.Events.IndexingDone, this._onIndexingDone, this);
-        InspectorFrontendHost.events.removeEventListener(InspectorFrontendHostAPI.Events.SearchCompleted, this._onSearchCompleted, this);
-    },
-
     __proto__: WebInspector.Object.prototype
 }
 
 /**
  * @type {!WebInspector.IsolatedFileSystemManager}
  */
 WebInspector.isolatedFileSystemManager;