Web Animations CSS: Support animation of stroke-dasharray property

Source/core/css/resolver/AnimatedStyleBuilder.cpp

Index: Source/core/css/resolver/AnimatedStyleBuilder.cpp
diff --git a/Source/core/css/resolver/AnimatedStyleBuilder.cpp b/Source/core/css/resolver/AnimatedStyleBuilder.cpp
index e7e047b3a3a5802a1e60c2aa41c0abc9faea16a2..cf9c9a666a9f2b34993cf2b6ea42f236cab85c18 100644
--- a/Source/core/css/resolver/AnimatedStyleBuilder.cpp
+++ b/Source/core/css/resolver/AnimatedStyleBuilder.cpp
@@ -42,6 +42,7 @@
 #include "core/animation/AnimatableSVGLength.h"
 #include "core/animation/AnimatableSVGPaint.h"
 #include "core/animation/AnimatableShapeValue.h"
+#include "core/animation/AnimatableStrokeDasharrayList.h"
 #include "core/animation/AnimatableTransform.h"
 #include "core/animation/AnimatableUnknown.h"
 #include "core/animation/AnimatableValue.h"
@@ -328,6 +329,9 @@ void AnimatedStyleBuilder::applyProperty(CSSPropertyID property, StyleResolverSt
     case CSSPropertyStopOpacity:
         style->setStopOpacity(clampTo<float>(toAnimatableDouble(value)->toDouble(), 0, 1));
         return;
+    case CSSPropertyStrokeDasharray:
+        style->setStrokeDashArray(toAnimatableStrokeDasharrayList(value)->toSVGLengthVector());
+        return;
     case CSSPropertyStrokeDashoffset:
         style->setStrokeDashOffset(toAnimatableSVGLength(value)->toSVGLength());
         return;