Updated SVGListPropertyHelper as per SVG2 Spec

Source/core/svg/SVGTransformList.cpp

 /*
  * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2012. All rights reserved.
  *
  * 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 333 matching lines @@
     ASSERT(length() == 1);
     if (at(0)->transformType() == toList->at(0)->transformType())
         return -1;
 
     // Spec: http://www.w3.org/TR/SVG/animate.html#complexDistances
     // Paced animations assume a notion of distance between the various animation values defined by the 'to', 'from', 'by' and 'values' attributes.
     // Distance is defined only for scalar types (such as <length>), colors and the subset of transformation types that are supported by 'animateTransform'.
     return SVGTransformDistance(at(0), toList->at(0)).distance();
 }
 
+PassRefPtrWillBeRawPtr<SVGTransform>SVGTransformList::initialize(PassRefPtrWillBeRawPtr<SVGTransform> passNewItem)
+{
+    RefPtrWillBeRawPtr<SVGTransform> newItem = passNewItem;
+
+    // SVG2-Draft Spec: If newItem is already in a list, then a new SVGTransform object is created with the same values as newItem and this item is inserted into the list.
+    // Otherwise, newItem itself is inserted into the list.
+    if (newItem->ownerList())
+        return Base::initialize(newItem->clone());
+
+    return Base::initialize(newItem);
 }
+
+PassRefPtrWillBeRawPtr<SVGTransform> SVGTransformList::appendItem(PassRefPtrWillBeRawPtr<SVGTransform> passNewItem)
+{
+    RefPtrWillBeRawPtr<SVGTransform> newItem = passNewItem;
+
+    // SVG2-Draft Spec: If newItem is already in a list, then a new SVGTransform object is created with the same values as newItem and this item is inserted into the list.
+    // Otherwise, newItem itself is inserted into the list.
+    if (newItem->ownerList())
+        return Base::appendItem(newItem->clone());
+
+    return Base::appendItem(newItem);
+}
+
+PassRefPtrWillBeRawPtr<SVGTransform> SVGTransformList::insertItemBefore(PassRefPtrWillBeRawPtr<SVGTransform> passNewItem, size_t index)
+{
+    RefPtrWillBeRawPtr<SVGTransform> newItem = passNewItem;
+
+    // SVG2-Draft Spec: If newItem is already in a list, then a new SVGTransform object is created with the same values as newItem and this item is inserted into the list.
+    // Otherwise, newItem itself is inserted into the list.
+    if (newItem->ownerList())
+        return Base::insertItemBefore(newItem->clone(), index);
+
+    return Base::insertItemBefore(newItem, index);
+}
+
+PassRefPtrWillBeRawPtr<SVGTransform> SVGTransformList::replaceItem(PassRefPtrWillBeRawPtr<SVGTransform> passNewItem, size_t index, ExceptionState& exceptionState)
+{
+    RefPtrWillBeRawPtr<SVGTransform> newItem = passNewItem;
+
+    // SVG2-Draft Spec: If newItem is already in a list, then a new SVGTransform object is created with the same values as newItem and this item is inserted into the list.
+    // Otherwise, newItem itself is inserted into the list.
+    if (newItem->ownerList())
+        return Base::replaceItem(newItem->clone(), index, exceptionState);
+
+    return Base::replaceItem(newItem, index, exceptionState);
+}
+
+}