Oilpan: move SVG property hierarchy to the heap.

Source/platform/graphics/filters/FEDiffuseLighting.cpp

Index: Source/platform/graphics/filters/FEDiffuseLighting.cpp
diff --git a/Source/platform/graphics/filters/FEDiffuseLighting.cpp b/Source/platform/graphics/filters/FEDiffuseLighting.cpp
index c3f28f0d0f868863e001d81cc0f6564d8c45b014..ba154b97f0f5091902d01f758c160e8821ad2b91 100644
--- a/Source/platform/graphics/filters/FEDiffuseLighting.cpp
+++ b/Source/platform/graphics/filters/FEDiffuseLighting.cpp
@@ -34,11 +34,11 @@ FEDiffuseLighting::FEDiffuseLighting(Filter* filter, const Color& lightingColor,
 {
 }
 
-PassRefPtr<FEDiffuseLighting> FEDiffuseLighting::create(Filter* filter, const Color& lightingColor,
+PassRefPtrWillBeRawPtr<FEDiffuseLighting> FEDiffuseLighting::create(Filter* filter, const Color& lightingColor,
     float surfaceScale, float diffuseConstant, float kernelUnitLengthX,
     float kernelUnitLengthY, PassRefPtr<LightSource> lightSource)
 {
-    return adoptRef(new FEDiffuseLighting(filter, lightingColor, surfaceScale, diffuseConstant, kernelUnitLengthX, kernelUnitLengthY, lightSource));
+    return adoptRefWillBeNoop(new FEDiffuseLighting(filter, lightingColor, surfaceScale, diffuseConstant, kernelUnitLengthX, kernelUnitLengthY, lightSource));
 }
 
 FEDiffuseLighting::~FEDiffuseLighting()