Add runtime feature and property names for unprefixed CSS Transforms

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 40 matching lines @@
 #include "wtf/TemporaryChange.h"
 
 namespace WebCore {
 
 using namespace HTMLNames;
 using namespace SVGNames;
 
 void mapAttributeToCSSProperty(HashMap<StringImpl*, CSSPropertyID>* propertyNameToIdMap, const QualifiedName& attrName)
 {
     // FIXME: when CSS supports "transform-origin" the special case for transform_originAttr can be removed.
+    // FIXME: It's not clear the above is strictly true, as -webkit-transform-origin has non-standard behavior.
     CSSPropertyID propertyId = cssPropertyID(attrName.localName());
     if (!propertyId && attrName == transform_originAttr)
         propertyId = CSSPropertyWebkitTransformOrigin; // cssPropertyID("-webkit-transform-origin")
+    if (propertyId == CSSPropertyTransformOrigin) {
+        ASSERT(RuntimeEnabledFeatures::cssTransformsUnprefixedEnabled());

[no longer working on chromium, 2014/03/26 17:19:24]

This line of code consistently crashes the tab on Linux.

+        propertyId = CSSPropertyWebkitTransformOrigin;
+    }
     ASSERT(propertyId > 0);
     propertyNameToIdMap->set(attrName.localName().impl(), propertyId);
 }
 
 SVGElement::SVGElement(const QualifiedName& tagName, Document& document, ConstructionType constructionType)
     : Element(tagName, &document, constructionType)
 #if !ASSERT_DISABLED
     , m_inRelativeLengthClientsInvalidation(false)
 #endif
     // |m_isContextElement| must be initialized before |m_className|, as SVGAnimatedString tear-off c-tor currently set this to true.
@@ skipping 1053 matching lines @@
         animatableAttributes.add(SVGNames::zAttr);
     }
 
     if (name == classAttr)
         return true;
 
     return animatableAttributes.contains(name);
 }
 #endif
 }