Introduce InlinedGlobalMarkingVisitor

Source/core/svg/SVGLength.cpp

 /*
  * Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Apple Inc. 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
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 449 matching lines @@
 }
 
 float SVGLength::calculateDistance(PassRefPtrWillBeRawPtr<SVGPropertyBase> toValue, SVGElement* contextElement)
 {
     SVGLengthContext lengthContext(contextElement);
     RefPtrWillBeRawPtr<SVGLength> toLength = toSVGLength(toValue);
 
     return fabsf(toLength->value(lengthContext, IGNORE_EXCEPTION) - value(lengthContext, IGNORE_EXCEPTION));
 }
 
+#if 0
+void SVGLength::trace(Visitor* visitor) {
+  printf("Generic trace\n");
+  traceImpl(visitor); }
+void SVGLength::trace(InlinedGlobalMarkingVisitor visitor) {
+  printf("Inline trace\n");
+  traceImpl(visitor); }
+template<typename VisitorDispatcher>
+ALWAYS_INLINE void SVGLength::traceImpl(VisitorDispatcher visitor)
+{
+    SVGPropertyBase::trace(visitor);
 }
+#endif
+
+}