Sync SVG interfaces with the specs

Source/core/svg/SVGElement.idl

Index: Source/core/svg/SVGElement.idl
diff --git a/Source/core/svg/SVGElement.idl b/Source/core/svg/SVGElement.idl
index 36381d6b7d9419169e4b3abf5746850f95c87704..68b0d5b55b8bb101b29b9ca5652af6f9a36f3206 100644
--- a/Source/core/svg/SVGElement.idl
+++ b/Source/core/svg/SVGElement.idl
@@ -20,15 +20,16 @@
  * Boston, MA 02110-1301, USA.
  */
 
-interface SVGElement : Element {
-    readonly attribute SVGSVGElement? ownerSVGElement;
-    readonly attribute SVGElement? viewportElement;
+// http://www.w3.org/TR/SVG2/types.html#InterfaceSVGElement
 
+interface SVGElement : Element {
     [RuntimeEnabled=SVG1DOM, MeasureAs=SVGClassName] readonly attribute SVGAnimatedString className;
-
     readonly attribute CSSStyleDeclaration style;
 
+    readonly attribute SVGSVGElement? ownerSVGElement;
+    readonly attribute SVGElement? viewportElement;
     [CustomElementCallbacks] attribute long tabIndex;
+    // TODO(philipj): focus() and blur() are on Element.
 };
 
 SVGElement implements GlobalEventHandlers;