Web Animations CSS: Support animation of stroke-dasharray property

Source/core/animation/AnimatableValue.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 42 matching lines @@
 
     bool isClipPathOperation() const { return type() == TypeClipPathOperation; }
     bool isColor() const { return type() == TypeColor; }
     bool isDouble() const { return type() == TypeDouble; }
     bool isImage() const { return type() == TypeImage; }
     bool isLength() const { return type() == TypeLength; }
     bool isLengthBox() const { return type() == TypeLengthBox; }
     bool isLengthSize() const { return type() == TypeLengthSize; }
     bool isNeutral() const { return type() == TypeNeutral; }
     bool isSVGLength() const { return type() == TypeSVGLength; }
+    bool isSVGLengthVector() const { return type() == TypeSVGLengthVector; }
     bool isShapeValue() const { return type() == TypeShapeValue; }
     bool isSVGPaint() const { return type() == TypeSVGPaint; }
     bool isTransform() const { return type() == TypeTransform; }
     bool isUnknown() const { return type() == TypeUnknown; }
     bool isVisibility() const { return type() == TypeVisibility; }
 
 protected:
     enum AnimatableType {
         TypeClipPathOperation,
         TypeColor,
         TypeDouble,
         TypeImage,
         TypeLength,
         TypeLengthBox,
         TypeLengthSize,
         TypeNeutral,
         TypeSVGLength,
+        TypeSVGLengthVector,
         TypeShapeValue,
         TypeSVGPaint,
         TypeTransform,
         TypeUnknown,
         TypeVisibility,
     };
 
     bool isSameType(const AnimatableValue* value) const
     {
         ASSERT(value);
@@ skipping 12 matching lines @@
 
 private:
     virtual AnimatableType type() const = 0;
     // Implementations can assume that the object being compared has the same type as the object this is called on
     virtual bool equalTo(const AnimatableValue*) const = 0;
 };
 
 } // namespace WebCore
 
 #endif // AnimatableValue_h