CSSValue Immediates: Change CSSValue to an object instead of a pointer

Source/core/style/StylePendingImage.h

Index: Source/core/style/StylePendingImage.h
diff --git a/Source/core/style/StylePendingImage.h b/Source/core/style/StylePendingImage.h
index 8a5153abb987fc0b08af51b1f59e03d1fa435156..a80cfc34c2a8d74db1e2fe13188c7c18ba907059 100644
--- a/Source/core/style/StylePendingImage.h
+++ b/Source/core/style/StylePendingImage.h
@@ -41,11 +41,11 @@ namespace blink {
 
 class StylePendingImage final : public StyleImage {
 public:
-    static PassRefPtr<StylePendingImage> create(CSSValue* value) { return adoptRef(new StylePendingImage(value)); }
+    static PassRefPtr<StylePendingImage> create(CSSValueObject* value) { return adoptRef(new StylePendingImage(value)); }
 
     virtual WrappedImagePtr data() const override { return m_value; }
 
-    virtual PassRefPtrWillBeRawPtr<CSSValue> cssValue() const override { return m_value; }
+    virtual NullableCSSValue cssValue() const override { return m_value; }
     CSSImageValue* cssImageValue() const { return m_value->isImageValue() ? toCSSImageValue(m_value) : 0; }
     CSSImageGeneratorValue* cssImageGeneratorValue() const { return m_value->isImageGeneratorValue() ? toCSSImageGeneratorValue(m_value) : 0; }
     CSSCursorImageValue* cssCursorImageValue() const { return m_value->isCursorImageValue() ? toCSSCursorImageValue(m_value) : 0; }
@@ -67,13 +67,13 @@ public:
     virtual bool knownToBeOpaque(const LayoutObject*) const override { return false; }
 
 private:
-    StylePendingImage(CSSValue* value)
+    StylePendingImage(CSSValueObject* value)
         : m_value(value)
     {
         m_isPendingImage = true;
     }
 
-    CSSValue* m_value; // Not retained; it owns us.
+    CSSValueObject* m_value; // Not retained; it owns us.
 };
 
 DEFINE_STYLE_IMAGE_TYPE_CASTS(StylePendingImage, isPendingImage());