Oilpan: Unship Oilpan from CSSValues

Source/core/style/StyleFetchedImageSet.h

Index: Source/core/style/StyleFetchedImageSet.h
diff --git a/Source/core/style/StyleFetchedImageSet.h b/Source/core/style/StyleFetchedImageSet.h
index 2ad89c3fefb7eccd410a0870c642e609f3e5ae46..056d3215ddcb485b3832435d62a47464320f625c 100644
--- a/Source/core/style/StyleFetchedImageSet.h
+++ b/Source/core/style/StyleFetchedImageSet.h
@@ -47,7 +47,7 @@ public:
     }
     ~StyleFetchedImageSet() override;
 
-    PassRefPtrWillBeRawPtr<CSSValue> cssValue() const override;
+    PassRefPtr<CSSValue> cssValue() const override;
 
     // FIXME: This is used by StyleImage for equals comparison, but this implementation
     // only looks at the image from the set that we have loaded. I'm not sure if that is
@@ -82,7 +82,7 @@ private:
     ResourcePtr<ImageResource> m_bestFitImage;
     float m_imageScaleFactor;
 
-    RawPtrWillBeMember<CSSImageSetValue> m_imageSetValue; // Not retained; it owns us.
+    RawPtr<CSSImageSetValue> m_imageSetValue; // Not retained; it owns us.
 };
 
 DEFINE_STYLE_IMAGE_TYPE_CASTS(StyleFetchedImageSet, isImageResourceSet());