Cleanup old code and refresh on IDL

client/dom/generated/wrapping_dom_externs.js

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 /**
  * @fileoverview Dart externs for DOM runtime.
  * @externs
  */
@@ skipping 1428 matching lines @@
 dom_externs.withCredentials;            // attribute XMLHttpRequest.withCredentials
 dom_externs.wrap;                       // attribute HTMLPreElement.wrap, attribute HTMLTextAreaElement.wrap
 dom_externs.write;                      // operation FileWriter.write, operation FileWriterSync.write, operation HTMLDocument.write
 dom_externs.writeln;                    // operation HTMLDocument.writeln
 dom_externs.x;                          // attribute HTMLImageElement.x, attribute MouseEvent.x, attribute WebKitPoint.x, attribute WheelEvent.x
 dom_externs.xmlEncoding;                // attribute Document.xmlEncoding
 dom_externs.xmlStandalone;              // attribute Document.xmlStandalone
 dom_externs.xmlVersion;                 // attribute Document.xmlVersion
 dom_externs.y;                          // attribute HTMLImageElement.y, attribute MouseEvent.y, attribute WebKitPoint.y, attribute WheelEvent.y
 
-// Externs referenced in custom attributes or custom operations.
-dom_externs.prototype.createXMLHttpRequest;
-dom_externs.prototype.createWebKitCSSMatrix;
-dom_externs.prototype.createWebKitPoint;
-dom_externs.prototype.createFileReader;
-dom_externs.prototype.setFillStyle;
-dom_externs.prototype.setStrokeStyle;
 
 }