Remove zoom() and effectiveZoom().

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

Index: sky/engine/core/rendering/style/StyleFetchedImageSet.h
diff --git a/sky/engine/core/rendering/style/StyleFetchedImageSet.h b/sky/engine/core/rendering/style/StyleFetchedImageSet.h
index eaa0de2affb8e02cc1c8653c45800b7104f5a0ac..183c437cb41cfb7546e6e01ce2247be5ca57b598 100644
--- a/sky/engine/core/rendering/style/StyleFetchedImageSet.h
+++ b/sky/engine/core/rendering/style/StyleFetchedImageSet.h
@@ -56,15 +56,15 @@ public:
 
     void clearImageSetValue() { m_imageSetValue = 0; }
 
-    virtual bool canRender(const RenderObject&, float multiplier) const override;
+    virtual bool canRender(const RenderObject&) const override;
     virtual bool isLoaded() const override;
     virtual bool errorOccurred() const override;
-    virtual LayoutSize imageSize(const RenderObject*, float multiplier) const override;
+    virtual LayoutSize imageSize(const RenderObject*) const override;
     virtual bool imageHasRelativeWidth() const override;
     virtual bool imageHasRelativeHeight() const override;
     virtual void computeIntrinsicDimensions(const RenderObject*, Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio) override;
     virtual bool usesImageContainerSize() const override;
-    virtual void setContainerSizeForRenderer(const RenderObject*, const IntSize&, float) override;
+    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;