Remove support for the externalResourcesRequired attribute.

Source/core/svg/SVGExternalResourcesRequired.cpp

Index: Source/core/svg/SVGExternalResourcesRequired.cpp
diff --git a/Source/core/svg/SVGExternalResourcesRequired.cpp b/Source/core/svg/SVGExternalResourcesRequired.cpp
deleted file mode 100644
index 74bfcc52cbd1bf5afea1e2aec7326b383fb30969..0000000000000000000000000000000000000000
--- a/Source/core/svg/SVGExternalResourcesRequired.cpp
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
- * Copyright (C) 2004, 2005, 2007 Rob Buis <buis@kde.org>
- *
- * 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.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#include "config.h"
-
-#include "core/svg/SVGExternalResourcesRequired.h"
-
-#include "SVGNames.h"
-#include "core/svg/SVGElement.h"
-
-namespace WebCore {
-
-bool SVGExternalResourcesRequired::parseAttribute(const QualifiedName& name, const AtomicString& value)
-{
-    if (name == SVGNames::externalResourcesRequiredAttr) {
-        setExternalResourcesRequiredBaseValue(value == "true");
-        return true;
-    }
-
-    return false;
-}
-
-bool SVGExternalResourcesRequired::isKnownAttribute(const QualifiedName& attrName)
-{
-    return attrName == SVGNames::externalResourcesRequiredAttr;
-}
-
-void SVGExternalResourcesRequired::addSupportedAttributes(HashSet<QualifiedName>& supportedAttributes)
-{
-    supportedAttributes.add(SVGNames::externalResourcesRequiredAttr);
-}
-
-bool SVGExternalResourcesRequired::handleAttributeChange(SVGElement* targetElement, const QualifiedName& attrName)
-{
-    ASSERT(targetElement);
-    if (!isKnownAttribute(attrName))
-        return false;
-    if (!targetElement->inDocument())
-        return true;
-
-    // Handle dynamic updates of the 'externalResourcesRequired' attribute. Only possible case: changing from 'true' to 'false'
-    // causes an immediate dispatch of the SVGLoad event. If the attribute value was 'false' before inserting the script element
-    // in the document, the SVGLoad event has already been dispatched.
-    if (!externalResourcesRequiredBaseValue() && !haveFiredLoadEvent() && !isParserInserted()) {
-        setHaveFiredLoadEvent(true);
-        ASSERT(targetElement->haveLoadedRequiredResources());
-
-        targetElement->sendSVGLoadEventIfPossible();
-    }
-
-    return true;
-}
-
-void SVGExternalResourcesRequired::dispatchLoadEvent(SVGElement* targetElement)
-{
-    bool externalResourcesRequired = externalResourcesRequiredBaseValue();
-
-    if (isParserInserted())
-        ASSERT(externalResourcesRequired != haveFiredLoadEvent());
-    else if (haveFiredLoadEvent())
-        return;
-
-    // HTML and SVG differ completely in the 'onload' event handling of <script> elements.
-    // HTML fires the 'load' event after it sucessfully loaded a remote resource, otherwise an error event.
-    // SVG fires the SVGLoad event immediately after parsing the <script> element, if externalResourcesRequired
-    // is set to 'false', otherwise it dispatches the 'SVGLoad' event just after loading the remote resource.
-    if (!externalResourcesRequired)
-        return;
-
-    ASSERT(!haveFiredLoadEvent());
-
-    // Dispatch SVGLoad event
-    setHaveFiredLoadEvent(true);
-    ASSERT(targetElement->haveLoadedRequiredResources());
-
-    targetElement->sendSVGLoadEventIfPossible();
-}
-
-void SVGExternalResourcesRequired::insertedIntoDocument(SVGElement* targetElement)
-{
-    if (isParserInserted())
-        return;
-
-    // Eventually send SVGLoad event now for the dynamically inserted script element.
-    if (externalResourcesRequiredBaseValue())
-        return;
-    setHaveFiredLoadEvent(true);
-    targetElement->sendSVGLoadEventIfPossibleAsynchronously();
-}
-
-void SVGExternalResourcesRequired::finishParsingChildren()
-{
-    // A SVGLoad event has been fired by SVGElement::finishParsingChildren.
-    if (!externalResourcesRequiredBaseValue())
-        setHaveFiredLoadEvent(true);
-}
-
-bool SVGExternalResourcesRequired::haveLoadedRequiredResources() const
-{
-    return !externalResourcesRequiredBaseValue() || haveFiredLoadEvent();
-}
-
-}