Pass RenderStyle / RenderObject by reference in more places

Source/core/css/CSSComputedStyleDeclaration.h

Index: Source/core/css/CSSComputedStyleDeclaration.h
diff --git a/Source/core/css/CSSComputedStyleDeclaration.h b/Source/core/css/CSSComputedStyleDeclaration.h
index 74b881d865bd5862478cbeb22a08470872b637cd..a3ff8770319226bcd7cc98f14c6ba1ce327f9d9d 100644
--- a/Source/core/css/CSSComputedStyleDeclaration.h
+++ b/Source/core/css/CSSComputedStyleDeclaration.h
@@ -128,12 +128,12 @@ private:
 
     virtual bool cssPropertyMatches(CSSPropertyID, const CSSValue*) const OVERRIDE;
 
-    PassRefPtr<CSSValue> valueForShadowData(const ShadowData&, const RenderStyle*, bool useSpread) const;
-    PassRefPtr<CSSValue> valueForShadowList(const ShadowList*, const RenderStyle*, bool useSpread) const;
-    PassRefPtr<CSSPrimitiveValue> currentColorOrValidColor(const RenderStyle*, const Color&) const;
-    PassRefPtr<SVGPaint> adjustSVGPaintForCurrentColor(PassRefPtr<SVGPaint>, RenderStyle*) const;
+    PassRefPtr<CSSValue> valueForShadowData(const ShadowData&, const RenderStyle&, bool useSpread) const;
+    PassRefPtr<CSSValue> valueForShadowList(const ShadowList*, const RenderStyle&, bool useSpread) const;
+    PassRefPtr<CSSPrimitiveValue> currentColorOrValidColor(const RenderStyle&, const Color&) const;
+    PassRefPtr<SVGPaint> adjustSVGPaintForCurrentColor(PassRefPtr<SVGPaint>, RenderStyle&) const;
 
-    PassRefPtr<CSSValue> valueForFilter(const RenderObject*, const RenderStyle*) const;
+    PassRefPtr<CSSValue> valueForFilter(const RenderObject*, const RenderStyle&) const;
 
     PassRefPtr<CSSValueList> valuesForShorthandProperty(const StylePropertyShorthand&) const;
     PassRefPtr<CSSValueList> valuesForSidesShorthand(const StylePropertyShorthand&) const;