Clean up SVG rendering API

Source/core/rendering/svg/RenderSVGModelObject.h

Index: Source/core/rendering/svg/RenderSVGModelObject.h
diff --git a/Source/core/rendering/svg/RenderSVGModelObject.h b/Source/core/rendering/svg/RenderSVGModelObject.h
index 083983ab3c2295d5c08ff72ac453f18f549e5c73..69fc30ddc3eee356a9a2a00f3005bba44219d4c7 100644
--- a/Source/core/rendering/svg/RenderSVGModelObject.h
+++ b/Source/core/rendering/svg/RenderSVGModelObject.h
@@ -33,7 +33,6 @@
 
 #include "core/rendering/RenderObject.h"
 #include "core/svg/SVGElement.h"
-#include "platform/geometry/FloatRect.h"
 
 namespace blink {
 
@@ -42,8 +41,6 @@ namespace blink {
 // required by SVG renders need to be declared on RenderObject, but shared
 // logic can go in this class or in SVGRenderSupport.
 
-class SVGElement;
-
 class RenderSVGModelObject : public RenderObject {
 public:
     explicit RenderSVGModelObject(SVGElement*);