Oilpan: revert SVG GC mixin constructor workaround.

Source/core/svg/SVGFitToViewBox.cpp

Index: Source/core/svg/SVGFitToViewBox.cpp
diff --git a/Source/core/svg/SVGFitToViewBox.cpp b/Source/core/svg/SVGFitToViewBox.cpp
index 418f29d85e1ada76e851a000b742ef549a2b4bad..6771cd73f29a38633be1f1f944aaa81a56436817 100644
--- a/Source/core/svg/SVGFitToViewBox.cpp
+++ b/Source/core/svg/SVGFitToViewBox.cpp
@@ -66,19 +66,11 @@ void SVGAnimatedViewBoxRect::setBaseValueAsString(const String& value, SVGParsin
     }
 }
 
-SVGFitToViewBox::SVGFitToViewBox()
+SVGFitToViewBox::SVGFitToViewBox(SVGElement* element, PropertyMapPolicy propertyMapPolicy)
+    : m_viewBox(SVGAnimatedViewBoxRect::create(element))
+    , m_preserveAspectRatio(SVGAnimatedPreserveAspectRatio::create(element, SVGNames::preserveAspectRatioAttr, SVGPreserveAspectRatio::create()))
 {
-}
-
-void SVGFitToViewBox::initialize(SVGElement* element, PropertyMapPolicy propertyMapPolicy)
-{
-    ASSERT(!m_viewBox);
-    ASSERT(!m_preserveAspectRatio);
     ASSERT(element);
-
-    m_viewBox = SVGAnimatedViewBoxRect::create(element);
-    m_preserveAspectRatio = SVGAnimatedPreserveAspectRatio::create(element, SVGNames::preserveAspectRatioAttr, SVGPreserveAspectRatio::create());
-
     if (propertyMapPolicy == PropertyMapPolicyAdd) {
         element->addToPropertyMap(m_viewBox);
         element->addToPropertyMap(m_preserveAspectRatio);