Support Promises instrumentation on backend.

Source/bindings/v8/ScriptObjectTraits.h

Index: Source/bindings/v8/ScriptObjectTraits.h
diff --git a/Source/core/svg/SVGAnimatedPath.h b/Source/bindings/v8/ScriptObjectTraits.h
similarity index 64%
copy from Source/core/svg/SVGAnimatedPath.h
copy to Source/bindings/v8/ScriptObjectTraits.h
index 6e03c58a50a17edb497524a00c9e3ab9626fec68..1bdb203c0933def4512604517a1cf471e0b6ae56 100644
--- a/Source/core/svg/SVGAnimatedPath.h
+++ b/Source/bindings/v8/ScriptObjectTraits.h
@@ -28,29 +28,28 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef SVGAnimatedPath_h
-#define SVGAnimatedPath_h
+#ifndef ScriptObjectTraits_h
+#define ScriptObjectTraits_h
 
-#include "core/svg/SVGPathSegListTearOff.h"
-#include "core/svg/properties/NewSVGAnimatedProperty.h"
+#include "bindings/v8/ScriptObject.h"
+#include "bindings/v8/ScriptState.h"
+#include "wtf/HashTraits.h"
 
 namespace WebCore {
 
-class SVGPathElement;
-
-class SVGAnimatedPath : public NewSVGAnimatedProperty<SVGPathSegList> {
-public:
-    virtual ~SVGAnimatedPath();
-
-    static PassRefPtr<SVGAnimatedPath> create(SVGPathElement* contextElement, const QualifiedName& attributeName)
-    {
-        return adoptRef(new SVGAnimatedPath(contextElement, attributeName));
-    }
+struct ScriptObjectHash {
+    static unsigned hash(const ScriptObject& object) { return object.v8Object()->GetIdentityHash(); }
+    static bool equal(const ScriptObject& a, const ScriptObject& b) { return a == b; }
+    static const bool safeToCompareToEmptyOrDeleted = true;
+};
 
-protected:
-    SVGAnimatedPath(SVGPathElement*, const QualifiedName&);
+struct ScriptObjectHashTraits : WTF::GenericHashTraits<ScriptObject> {
+    static const bool emptyValueIsZero = false;
+    static ScriptObject emptyValue() { return ScriptObject(ScriptState::current(), ScriptValue::createNull()); }
+    static void constructDeletedValue(ScriptObject& slot) { slot = ScriptObject(); }
+    static bool isDeletedValue(ScriptObject value) { return value.hasNoValue(); }
 };
 
 } // namespace WebCore
 
-#endif // SVGAnimatedPath_h
+#endif // !defined(ScriptObjectTraits_h)