Use Length for the stroke-dasharray property in SVGLayoutStyle

LayoutTests/web-animations-api/animations-responsive-strokeDasharray.html

Index: LayoutTests/web-animations-api/animations-responsive-strokeDasharray.html
diff --git a/LayoutTests/web-animations-api/animations-responsive-textIndent.html b/LayoutTests/web-animations-api/animations-responsive-strokeDasharray.html
similarity index 65%
copy from LayoutTests/web-animations-api/animations-responsive-textIndent.html
copy to LayoutTests/web-animations-api/animations-responsive-strokeDasharray.html
index eca4d1dd298c80fa7ebb6d8f99adc2cf60bbc785..d088ad09083fa83d698b4344b3d063db50df75e2 100644
--- a/LayoutTests/web-animations-api/animations-responsive-textIndent.html
+++ b/LayoutTests/web-animations-api/animations-responsive-strokeDasharray.html
@@ -13,16 +13,16 @@ test(function() {
     container.style.fontSize = '10px';
 
     var keyframes = [
-        {textIndent: '10em hanging'},
-        {textIndent: '10em hanging'}
+        {strokeDasharray: '10em 10em'},
+        {strokeDasharray: '10em 10em'}
     ];
     var player = element.animate(keyframes, 10);
     player.pause();
     player.currentTime = 5;
 
-    var textIndent = getComputedStyle(element).textIndent;
+    var strokeDasharray = getComputedStyle(element).strokeDasharray;
     container.style.fontSize = '20px';
-    assert_not_equals(getComputedStyle(element).textIndent, textIndent);
-}, 'textIndent responsive to style changes');
+    assert_not_equals(getComputedStyle(element).strokeDasharray, strokeDasharray);
+}, 'strokeDasharray responsive to style changes');
 
 </script>