Wrap CSS length conversion arguments in an object

Source/core/css/resolver/StyleResolverState.h

Index: Source/core/css/resolver/StyleResolverState.h
diff --git a/Source/core/css/resolver/StyleResolverState.h b/Source/core/css/resolver/StyleResolverState.h
index cedd3a4dcaab08bd725beea82b06f5492644ee46..998cfc3fe231b3e58e354f3b5eb64d759785d306 100644
--- a/Source/core/css/resolver/StyleResolverState.h
+++ b/Source/core/css/resolver/StyleResolverState.h
@@ -26,6 +26,7 @@
 
 #include "core/animation/css/CSSAnimations.h"
 #include "core/css/CSSSVGDocumentValue.h"
+#include "core/css/CSSToLengthConversionData.h"
 #include "core/css/CSSToStyleMap.h"
 #include "core/css/resolver/ElementResolveContext.h"
 #include "core/css/resolver/ElementStyleResources.h"
@@ -58,11 +59,13 @@ public:
 
     const ElementResolveContext& elementContext() const { return m_elementContext; }
 
-    void setStyle(PassRefPtr<RenderStyle> style) { m_style = style; }
+    void setStyle(PassRefPtr<RenderStyle> style) { m_style = style; m_cssToLengthConversionData.setStyle(m_style.get()); }
     const RenderStyle* style() const { return m_style.get(); }
     RenderStyle* style() { return m_style.get(); }
     PassRefPtr<RenderStyle> takeStyle() { return m_style.release(); }
 
+    const CSSToLengthConversionData& cssToLengthConversionData() const { return m_cssToLengthConversionData; }
+
     void setAnimationUpdate(PassOwnPtr<CSSAnimationUpdate> update) { m_animationUpdate = update; }
     const CSSAnimationUpdate* animationUpdate() { return m_animationUpdate.get(); }
     PassOwnPtr<CSSAnimationUpdate> takeAnimationUpdate() { return m_animationUpdate.release(); }
@@ -138,6 +141,8 @@ private:
     // m_style is the primary output for each element's style resolve.
     RefPtr<RenderStyle> m_style;
 
+    CSSToLengthConversionData m_cssToLengthConversionData;
+
     // m_parentStyle is not always just element->parentNode()->style()
     // so we keep it separate from m_elementContext.
     RefPtr<RenderStyle> m_parentStyle;