Move ResourceClient to Oilpan heap

third_party/WebKit/Source/core/style/StyleFetchedImageSet.h

 /*
  * Copyright (C) 2012 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 21 matching lines @@
 
 namespace blink {
 
 class ImageResource;
 class CSSImageSetValue;
 
 // This class keeps one cached image and has access to a set of alternatives.
 
 class StyleFetchedImageSet final : public StyleImage, private ResourceClient {
     USING_PRE_FINALIZER(StyleFetchedImageSet, dispose);
+    USING_GARBAGE_COLLECTED_MIXIN(StyleFetchedImageSet);
 public:
     static StyleFetchedImageSet* create(ImageResource* image, float imageScaleFactor, CSSImageSetValue* value, const KURL& url)
     {
         return new StyleFetchedImageSet(image, imageScaleFactor, value, url);
     }
     ~StyleFetchedImageSet() override;
 
     CSSValue* cssValue() const override;
     CSSValue* computedCSSValue() const override;
 
@@ skipping 29 matching lines @@
 
     Member<CSSImageSetValue> m_imageSetValue; // Not retained; it owns us.
     const KURL m_url;
 };
 
 DEFINE_STYLE_IMAGE_TYPE_CASTS(StyleFetchedImageSet, isImageResourceSet());
 
 } // namespace blink
 
 #endif // StyleFetchedImageSet_h