Experimental SVG 1.1 DOM runtime flag.

Source/core/svg/SVGMaskElement.idl

Index: Source/core/svg/SVGMaskElement.idl
diff --git a/Source/core/svg/SVGMaskElement.idl b/Source/core/svg/SVGMaskElement.idl
index 06ced403637cb2f0d0551a4f97dccfda1bea5527..5d6c437cc0cf036acc6834e594e44d53dc23124a 100644
--- a/Source/core/svg/SVGMaskElement.idl
+++ b/Source/core/svg/SVGMaskElement.idl
@@ -26,12 +26,12 @@
 // http://www.w3.org/TR/css-masking/#InterfaceSVGMaskElement
 
 interface SVGMaskElement : SVGElement {
-    readonly attribute SVGAnimatedEnumeration maskUnits;
-    readonly attribute SVGAnimatedEnumeration maskContentUnits;
-    readonly attribute SVGAnimatedLength x;
-    readonly attribute SVGAnimatedLength y;
-    readonly attribute SVGAnimatedLength width;
-    readonly attribute SVGAnimatedLength height;
+    [RuntimeEnabled=SVG1DOM] readonly attribute SVGAnimatedEnumeration maskUnits;
+    [RuntimeEnabled=SVG1DOM] readonly attribute SVGAnimatedEnumeration maskContentUnits;
+    [RuntimeEnabled=SVG1DOM] readonly attribute SVGAnimatedLength x;
+    [RuntimeEnabled=SVG1DOM] readonly attribute SVGAnimatedLength y;
+    [RuntimeEnabled=SVG1DOM] readonly attribute SVGAnimatedLength width;
+    [RuntimeEnabled=SVG1DOM] readonly attribute SVGAnimatedLength height;
 };
 
 SVGMaskElement implements SVGTests;