Update WebKit idl files after chrome roll

third_party/WebCore/svg/SVGElementInstance.idl

 /*
  * Copyright (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2008 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 10 matching lines @@
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
  */
 
 [
     Conditional=SVG,
     JSCustomMarkFunction,
     JSGenerateToNativeObject,
-    JSGenerateToJSObject
+    JSGenerateToJSObject,
+    EventTarget
 ] interface SVGElementInstance
 #if defined(LANGUAGE_OBJECTIVE_C) && LANGUAGE_OBJECTIVE_C
     : Object, EventTarget
 #else
     : EventTarget
 #endif /* defined(LANGUAGE_OBJECTIVE_C) */
 {
     readonly attribute SVGElement correspondingElement;
     readonly attribute SVGUseElement correspondingUseElement;
     readonly attribute SVGElementInstance parentNode;
@@ skipping 40 matching lines @@
     attribute [NotEnumerable] EventListener onreset;
     attribute [NotEnumerable] EventListener onresize;
     attribute [NotEnumerable] EventListener onscroll;
     attribute [NotEnumerable] EventListener onsearch;
     attribute [NotEnumerable] EventListener onselect;
     attribute [NotEnumerable] EventListener onselectstart;
     attribute [NotEnumerable] EventListener onsubmit;
     attribute [NotEnumerable] EventListener onunload;
 #endif /* defined(LANGUAGE_OBJECTIVE_C) */
 };