[DevTools] Remove Common.Event.target field.

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 295 matching lines @@
     return !!suffix.length && !suffix.match(SDK.Script.sourceURLRegex);
   }
 
   /**
    * @param {!Common.Event} event
    */
   _workingCopyChanged(event) {
     this._update();
   }
 
+  /**
+   * @param {!Common.Event} event
+   */
   _workingCopyCommitted(event) {
     if (this._uiSourceCode.project().canSetFileContent())
       return;
     if (!this._script)
       return;
     var debuggerModel = this._resourceScriptMapping._debuggerModel;
     var source = this._uiSourceCode.workingCopy();
     debuggerModel.setScriptSource(this._script.scriptId, source, scriptSourceWasSet.bind(this));
 
     /**
@@ skipping 115 matching lines @@
   hasSourceMapURL() {
     return this._script && !!this._script.sourceMapURL;
   }
 };
 
 /** @enum {symbol} */
 Bindings.ResourceScriptFile.Events = {
   DidMergeToVM: Symbol('DidMergeToVM'),
   DidDivergeFromVM: Symbol('DidDivergeFromVM'),
 };