CSSValue Immediates: Make CSSPrimitiveValue a container

Source/core/css/CSSBorderImageSliceValue.h

Index: Source/core/css/CSSBorderImageSliceValue.h
diff --git a/Source/core/css/CSSBorderImageSliceValue.h b/Source/core/css/CSSBorderImageSliceValue.h
index 3dfd38103ea888a3c50d3c147b45ee98e34e4cc7..6fd9856fedf668d49f4a2c4f0cbc760a897cc1e0 100644
--- a/Source/core/css/CSSBorderImageSliceValue.h
+++ b/Source/core/css/CSSBorderImageSliceValue.h
@@ -26,7 +26,7 @@
 #ifndef CSSBorderImageSliceValue_h
 #define CSSBorderImageSliceValue_h
 
-#include "core/css/CSSPrimitiveValue.h"
+#include "core/css/CSSValue.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
 
@@ -34,14 +34,14 @@ namespace blink {
 
 class CSSBorderImageSliceValue : public CSSValueObject {
 public:
-    static PassRefPtrWillBeRawPtr<CSSBorderImageSliceValue> create(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> slices, bool fill)
+    static PassRefPtrWillBeRawPtr<CSSBorderImageSliceValue> create(CSSPrimitiveValue slices, bool fill)
     {
         return adoptRefWillBeNoop(new CSSBorderImageSliceValue(slices, fill));
     }
 
     String customCSSText() const;
 
-    Quad* slices() const { return m_slices ? m_slices->getQuadValue() : nullptr; }
+    Quad* slices() const { return toCSSPrimitiveValue(m_slices).getQuadValue(); }
 
     bool equals(const CSSBorderImageSliceValue&) const;
 
@@ -49,11 +49,11 @@ public:
 
     // These four values are used to make "cuts" in the border image. They can be numbers
     // or percentages.
-    RefPtrWillBeMember<CSSPrimitiveValue> m_slices;
+    CSSValue m_slices;
     bool m_fill;
 
 private:
-    CSSBorderImageSliceValue(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> slices, bool fill);
+    CSSBorderImageSliceValue(CSSPrimitiveValue slices, bool fill);
 };
 
 DEFINE_CSS_VALUE_TYPE_CASTS(CSSBorderImageSliceValue, isBorderImageSliceValue());