[SVG] SVGAnimatedString{,List} migration to new SVG property impl.

Source/core/svg/SVGString.cpp

Index: Source/core/svg/SVGString.cpp
diff --git a/Source/core/rendering/svg/SVGPathData.h b/Source/core/svg/SVGString.cpp
similarity index 52%
copy from Source/core/rendering/svg/SVGPathData.h
copy to Source/core/svg/SVGString.cpp
index 4a62897488357a165ed75dd669fbb1a13098ee7b..59411b887900aa969f1bef430158ae279376f75f 100644
--- a/Source/core/rendering/svg/SVGPathData.h
+++ b/Source/core/svg/SVGString.cpp
@@ -17,16 +17,32 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef SVGPathData_h
-#define SVGPathData_h
+#include "config.h"
+#include "core/svg/SVGString.h"
+
+#include "core/svg/SVGAnimateElement.h"
 
 namespace WebCore {
 
-class SVGElement;
-class Path;
+void SVGString::add(PassRefPtr<NewSVGPropertyBase>, SVGElement*)
+{
+    ASSERT_NOT_REACHED();
+}
+
+void SVGString::calculateAnimatedValue(SVGAnimationElement* animationElement, float percentage, unsigned repeatCount, PassRefPtr<NewSVGPropertyBase> from, PassRefPtr<NewSVGPropertyBase> to, PassRefPtr<NewSVGPropertyBase>, SVGElement*)
+{
+    ASSERT(animationElement);
+
+    String fromString = toSVGString(from)->m_value;
+    String toString = toSVGString(to)->m_value;
 
-void updatePathFromGraphicsElement(SVGElement*, Path&);
+    animationElement->animateDiscreteType<String>(percentage, fromString, toString, m_value);
+}
 
-};
+float SVGString::calculateDistance(PassRefPtr<NewSVGPropertyBase>, SVGElement*)
+{
+    // No paced animations for strings.

[haraken, 2014/01/29 05:18:00]

It's confusing to me which elements can animate and which elements cannot
animate. Probably we might want to implement 'virtual bool isAnimated()' in
NewSVGPropertyBase and override the isAnimated() in each subclass.

[kouhei (in TOK), 2014/01/30 08:18:56]

"Paced" animations are not supported, but normal discrete animations are
supported for SVGString.

[haraken, 2014/01/30 11:00:09]

Makes sense. Then we might want to have isPacedAnimationSupported() and
isDiscreteAnimationSupported(). Then you could use these methods to add ASSERTs.
(You don't need to do that in this CL though.)

+    return -1;
+}
 
-#endif // SVGPathData_h
+}