Remove SVGZoomEvent interface and onzoom attribute

third_party/WebKit/Source/core/svg/SVGSVGElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2014 Google, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 159 matching lines @@
     if (!nearestViewportElement()) {
         bool setListener = true;
 
         // Only handle events if we're the outermost <svg> element
         if (name == HTMLNames::onunloadAttr) {
             document().setWindowAttributeEventListener(EventTypeNames::unload, createAttributeEventListener(document().frame(), name, value, eventParameterName()));
         } else if (name == HTMLNames::onresizeAttr) {
             document().setWindowAttributeEventListener(EventTypeNames::resize, createAttributeEventListener(document().frame(), name, value, eventParameterName()));
         } else if (name == HTMLNames::onscrollAttr) {
             document().setWindowAttributeEventListener(EventTypeNames::scroll, createAttributeEventListener(document().frame(), name, value, eventParameterName()));
-        } else if (name == SVGNames::onzoomAttr) {
-            Deprecation::countDeprecation(document(), UseCounter::SVGZoomEvent);
-            document().setWindowAttributeEventListener(EventTypeNames::zoom, createAttributeEventListener(document().frame(), name, value, eventParameterName()));
         } else {
             setListener = false;
         }
 
         if (setListener)
             return;
     }
 
     if (name == HTMLNames::onabortAttr) {
         document().setWindowAttributeEventListener(EventTypeNames::abort, createAttributeEventListener(document().frame(), name, value, eventParameterName()));
@@ skipping 546 matching lines @@
     visitor->trace(m_width);
     visitor->trace(m_height);
     visitor->trace(m_translation);
     visitor->trace(m_timeContainer);
     visitor->trace(m_viewSpec);
     SVGGraphicsElement::trace(visitor);
     SVGFitToViewBox::trace(visitor);
 }
 
 } // namespace blink