Revert of Add additive animation support for CSS property background-position

third_party/WebKit/Source/core/animation/LengthListPropertyFunctions.h

Index: third_party/WebKit/Source/core/animation/LengthListPropertyFunctions.h
diff --git a/third_party/WebKit/Source/core/animation/LengthListPropertyFunctions.h b/third_party/WebKit/Source/core/animation/LengthListPropertyFunctions.h
index b15720dd112b0ab346f46baa85605dec2053c778..0174a423bf32ea21d64b43706a679fabccad38d3 100644
--- a/third_party/WebKit/Source/core/animation/LengthListPropertyFunctions.h
+++ b/third_party/WebKit/Source/core/animation/LengthListPropertyFunctions.h
@@ -6,20 +6,40 @@
 #define LengthListPropertyFunctions_h
 
 #include "core/CSSPropertyNames.h"
+#include "core/style/ComputedStyle.h"
 #include "platform/Length.h"
-#include "wtf/Vector.h"
+#include "wtf/Allocator.h"
+#include "wtf/RefVector.h"
 
 namespace blink {
-
-class ComputedStyle;
 
 class LengthListPropertyFunctions {
     STATIC_ONLY(LengthListPropertyFunctions);
 public:
-    static ValueRange valueRange(CSSPropertyID);
-    static Vector<Length> getInitialLengthList(CSSPropertyID);
-    static Vector<Length> getLengthList(CSSPropertyID, const ComputedStyle&);
-    static void setLengthList(CSSPropertyID, ComputedStyle&, Vector<Length>&& lengthList);
+    static ValueRange valueRange(CSSPropertyID property)
+    {
+        ASSERT(property == CSSPropertyStrokeDasharray);
+        return ValueRangeNonNegative;
+    }
+
+    static const RefVector<Length>* getInitialLengthList(CSSPropertyID property)
+    {
+        ASSERT(property == CSSPropertyStrokeDasharray);
+        return nullptr;
+    }
+
+    static const RefVector<Length>* getLengthList(CSSPropertyID property, const ComputedStyle& style)
+    {
+        ASSERT(property == CSSPropertyStrokeDasharray);
+        return style.strokeDashArray();
+    }
+
+    static void setLengthList(CSSPropertyID property, ComputedStyle& style, PassRefPtr<RefVector<Length>> lengthList)
+    {
+        ASSERT(property == CSSPropertyStrokeDasharray);
+        style.setStrokeDashArray(lengthList);
+    }
+
 };
 
 } // namespace blink