Remove CSS clients of ImageResource

sky/engine/core/rendering/style/StylePendingImage.h

 /*
  * Copyright (C) 2010 Apple Inc. All rights reserved.
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  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
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  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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 #ifndef SKY_ENGINE_CORE_RENDERING_STYLE_STYLEPENDINGIMAGE_H_
 #define SKY_ENGINE_CORE_RENDERING_STYLE_STYLEPENDINGIMAGE_H_
 
 #include "sky/engine/core/css/CSSImageGeneratorValue.h"
-#include "sky/engine/core/css/CSSImageSetValue.h"
-#include "sky/engine/core/css/CSSImageValue.h"
 #include "sky/engine/core/rendering/style/StyleImage.h"
 #include "sky/engine/platform/graphics/Image.h"
 
 namespace blink {
 
 // StylePendingImage is a placeholder StyleImage that is entered into the RenderStyle during
 // style resolution, in order to avoid loading images that are not referenced by the final style.
 // They should never exist in a RenderStyle after it has been returned from the style selector.
 
 class StylePendingImage final : public StyleImage {
 public:
     static PassRefPtr<StylePendingImage> create(CSSValue* value) { return adoptRef(new StylePendingImage(value)); }
 
     virtual WrappedImagePtr data() const override { return m_value; }
 
     virtual PassRefPtr<CSSValue> 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; }
-    CSSImageSetValue* cssImageSetValue() const { return m_value->isImageSetValue() ? toCSSImageSetValue(m_value) : 0; }
 
     virtual LayoutSize imageSize(const RenderObject*) const override { return LayoutSize(); }
     virtual bool imageHasRelativeWidth() const override { return false; }
     virtual bool imageHasRelativeHeight() const override { return false; }
     virtual void computeIntrinsicDimensions(const RenderObject*, Length& /* intrinsicWidth */ , Length& /* intrinsicHeight */, FloatSize& /* intrinsicRatio */) override { }
     virtual bool usesImageContainerSize() const override { return false; }
     virtual void setContainerSizeForRenderer(const RenderObject*, const IntSize&) override { }
     virtual void addClient(RenderObject*) override { }
     virtual void removeClient(RenderObject*) override { }
     virtual PassRefPtr<Image> image(RenderObject*, const IntSize&) const override
@@ skipping 10 matching lines @@
         m_isPendingImage = true;
     }
 
     CSSValue* m_value; // Not retained; it owns us.
 };
 
 DEFINE_STYLE_IMAGE_TYPE_CASTS(StylePendingImage, isPendingImage());
 
 }
 #endif  // SKY_ENGINE_CORE_RENDERING_STYLE_STYLEPENDINGIMAGE_H_