Introduce InlinedGlobalMarkingVisitor

Source/core/svg/SVGLength.cpp

Index: Source/core/svg/SVGLength.cpp
diff --git a/Source/core/svg/SVGLength.cpp b/Source/core/svg/SVGLength.cpp
index 3c928704dc21593d6dd2cd672f1f622760e1dea7..190318f65a565412ad4f252a6f4f2829576217b1 100644
--- a/Source/core/svg/SVGLength.cpp
+++ b/Source/core/svg/SVGLength.cpp
@@ -467,4 +467,18 @@ float SVGLength::calculateDistance(PassRefPtrWillBeRawPtr<SVGPropertyBase> toVal
     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
+
 }