Remove support for the externalResourcesRequired attribute.

Source/core/svg/SVGElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2008 Rob Buis <buis@kde.org>
  * Copyright (C) 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Alp Toker <alp@atoker.com>
  * Copyright (C) 2009 Cameron McCormack <cam@mcc.id.au>
  *
  * 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
@@ skipping 911 matching lines @@
     return parentNode() && !parentNode()->isSVGElement() && hasTagName(SVGNames::svgTag) && Element::shouldMoveToFlowThread(styleToUse);
 }
 
 void SVGElement::sendSVGLoadEventIfPossible(bool sendParentLoadEvents)
 {
     RefPtr<SVGElement> currentTarget = this;
     while (currentTarget && currentTarget->haveLoadedRequiredResources()) {
         RefPtr<Element> parent;
         if (sendParentLoadEvents)
             parent = currentTarget->parentOrShadowHostElement(); // save the next parent to dispatch too incase dispatching the event changes the tree
-        if (hasLoadListener(currentTarget.get()))
+        if (hasLoadListener(currentTarget.get())
+            && (currentTarget->isStructurallyExternal() || currentTarget->isSVGSVGElement()))
             currentTarget->dispatchEvent(Event::create(EventTypeNames::load));
         currentTarget = (parent && parent->isSVGElement()) ? static_pointer_cast<SVGElement>(parent) : RefPtr<SVGElement>();
         SVGElement* element = currentTarget.get();
         if (!element || !element->isOutermostSVGSVGElement())
             continue;
 
         // Consider <svg onload="foo()"><image xlink:href="foo.png" externalResourcesRequired="true"/></svg>.
         // If foo.png is not yet loaded, the first SVGLoad event will go to the <svg> element, sent through
         // Document::implicitClose(). Then the SVGLoad event will fire for <image>, once its loaded.
         ASSERT(sendParentLoadEvents);
@@ skipping 25 matching lines @@
 void SVGElement::finishParsingChildren()
 {
     Element::finishParsingChildren();
 
     // The outermost SVGSVGElement SVGLoad event is fired through Document::dispatchWindowLoadEvent.
     if (isOutermostSVGSVGElement())
         return;
 
     // finishParsingChildren() is called when the close tag is reached for an element (e.g. </svg>)
     // we send SVGLoad events here if we can, otherwise they'll be sent when any required loads finish
-    sendSVGLoadEventIfPossible();
+    if (isSVGSVGElement())
+        sendSVGLoadEventIfPossible();
 }
 
 bool SVGElement::childShouldCreateRenderer(const Node& child) const
 {
     DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, invalidTextContent, ());
 
     if (invalidTextContent.isEmpty()) {
         invalidTextContent.add(SVGNames::textPathTag);
 #if ENABLE(SVG_FONTS)
         invalidTextContent.add(SVGNames::altGlyphTag);
@@ skipping 162 matching lines @@
         animatableAttributes.add(SVGNames::clipPathUnitsAttr);
         animatableAttributes.add(SVGNames::cxAttr);
         animatableAttributes.add(SVGNames::cyAttr);
         animatableAttributes.add(SVGNames::diffuseConstantAttr);
         animatableAttributes.add(SVGNames::divisorAttr);
         animatableAttributes.add(SVGNames::dxAttr);
         animatableAttributes.add(SVGNames::dyAttr);
         animatableAttributes.add(SVGNames::edgeModeAttr);
         animatableAttributes.add(SVGNames::elevationAttr);
         animatableAttributes.add(SVGNames::exponentAttr);
-        animatableAttributes.add(SVGNames::externalResourcesRequiredAttr);
         animatableAttributes.add(SVGNames::filterResAttr);
         animatableAttributes.add(SVGNames::filterUnitsAttr);
         animatableAttributes.add(SVGNames::fxAttr);
         animatableAttributes.add(SVGNames::fyAttr);
         animatableAttributes.add(SVGNames::gradientTransformAttr);
         animatableAttributes.add(SVGNames::gradientUnitsAttr);
         animatableAttributes.add(SVGNames::heightAttr);
         animatableAttributes.add(SVGNames::in2Attr);
         animatableAttributes.add(SVGNames::inAttr);
         animatableAttributes.add(SVGNames::interceptAttr);
@@ skipping 66 matching lines @@
         animatableAttributes.add(SVGNames::zAttr);
     }
 
     if (name == classAttr)
         return true;
 
     return animatableAttributes.contains(name);
 }
 #endif
 }