NOT FOR LANDING Experiment with allocating SVGImageForContainer on demand

Source/core/svg/graphics/SVGImage.h

Index: Source/core/svg/graphics/SVGImage.h
diff --git a/Source/core/svg/graphics/SVGImage.h b/Source/core/svg/graphics/SVGImage.h
index c23f4520eb11636adae1510679b259d0010e56c3..9f97f9f5a740c9b5261afe905b9611dd8925e1f0 100644
--- a/Source/core/svg/graphics/SVGImage.h
+++ b/Source/core/svg/graphics/SVGImage.h
@@ -55,7 +55,6 @@ public:
 
     bool isSVGImage() const override { return true; }
     IntSize size() const override { return m_intrinsicSize; }
-    void setURL(const KURL& url) { m_url = url; }
 
     bool currentFrameHasSingleSecurityOrigin() const override;
 
@@ -105,14 +104,14 @@ private:
 
     SVGImage(ImageObserver*);
     void draw(SkCanvas*, const SkPaint&, const FloatRect& fromRect, const FloatRect& toRect, RespectImageOrientationEnum, ImageClampingMode) override;
-    void drawForContainer(SkCanvas*, const SkPaint&, const FloatSize, float, const FloatRect&, const FloatRect&);
+    void drawForContainer(SkCanvas*, const SkPaint&, const FloatSize, float, const FloatRect&, const FloatRect&, const KURL& urlWithFragment);
     void drawPatternForContainer(GraphicsContext*, const FloatSize, float, const FloatRect&, const FloatSize&, const FloatPoint&,
-        SkXfermode::Mode, const FloatRect&, const IntSize& repeatSpacing);
+        SkXfermode::Mode, const FloatRect&, const IntSize& repeatSpacing, const KURL& urlWithFragment);
+    void drawInternal(SkCanvas*, const SkPaint&, const FloatRect& fromRect, const FloatRect& toRect, RespectImageOrientationEnum, ImageClampingMode);
 
     OwnPtrWillBePersistent<SVGImageChromeClient> m_chromeClient;
     OwnPtrWillBePersistent<Page> m_page;
     IntSize m_intrinsicSize;
-    KURL m_url;
 };
 
 DEFINE_IMAGE_TYPE_CASTS(SVGImage);