NOT FOR LANDING Experiment with allocating SVGImageForContainer on demand

Source/core/paint/BackgroundImageGeometry.cpp

Index: Source/core/paint/BackgroundImageGeometry.cpp
diff --git a/Source/core/paint/BackgroundImageGeometry.cpp b/Source/core/paint/BackgroundImageGeometry.cpp
index c0b910b864b211d52c6bf0b6a1087ca5e3085109..879058e28d2d8a67c0aba915b0b97788c6d2529d 100644
--- a/Source/core/paint/BackgroundImageGeometry.cpp
+++ b/Source/core/paint/BackgroundImageGeometry.cpp
@@ -170,7 +170,7 @@ void BackgroundImageGeometry::clip(const IntRect& clipRect)
 
 void BackgroundImageGeometry::calculate(const LayoutBoxModelObject& obj, const LayoutBoxModelObject* paintContainer,
     const GlobalPaintFlags globalPaintFlags, const FillLayer& fillLayer, const LayoutRect& paintRect,
-    LayoutObject* backgroundObject)
+    LayoutObject*)
 {
     LayoutUnit left = 0;
     LayoutUnit top = 0;
@@ -256,9 +256,7 @@ void BackgroundImageGeometry::calculate(const LayoutBoxModelObject& obj, const L
         positioningAreaSize = destRect().size();
     }
 
-    const LayoutObject* clientForBackgroundImage = backgroundObject ? backgroundObject : &obj;
     IntSize fillTileSize = calculateFillTileSize(positioningBox, fillLayer, positioningAreaSize);
-    fillLayer.image()->setContainerSizeForLayoutObject(clientForBackgroundImage, fillTileSize, obj.style()->effectiveZoom());
     setTileSize(fillTileSize);
 
     EFillRepeat backgroundRepeatX = fillLayer.repeatX();