Deprecate Element.offsetParent/offsetTop/offsetLeft/offsetWidth/offsetHeight

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 1e4ac18c3bc13b741c065fd7cdb1115541069f1a..56b61321e2b400152c387fface35ffe63329c28c 100644
--- a/Source/core/svg/SVGElement.idl
+++ b/Source/core/svg/SVGElement.idl
@@ -31,6 +31,13 @@ interface SVGElement : Element {
     [CustomElementCallbacks] attribute long tabIndex;
     void focus();
     void blur();
+
+    // TODO(tanay.c): SVGElement.offset* are non-standard. crbug.com/463116
+    [Measure, PerWorldBindings] readonly attribute Element? offsetParent;
+    [Measure] readonly attribute long offsetTop;
+    [Measure] readonly attribute long offsetLeft;
+    [Measure] readonly attribute long offsetWidth;
+    [Measure] readonly attribute long offsetHeight;
 };
 
 SVGElement implements GlobalEventHandlers;