bindings: Adds virtual ScriptWrappable::wrap method.

Source/core/timing/PerformanceTiming.h

Index: Source/core/timing/PerformanceTiming.h
diff --git a/Source/core/timing/PerformanceTiming.h b/Source/core/timing/PerformanceTiming.h
index ef5b9dc6d34699da4587b47fba9f483f6318c69e..19f676fa10b86d0aa8f3a221b213171db7995306 100644
--- a/Source/core/timing/PerformanceTiming.h
+++ b/Source/core/timing/PerformanceTiming.h
@@ -46,6 +46,7 @@ class LocalFrame;
 class ResourceLoadTiming;
 
 class PerformanceTiming FINAL : public RefCountedWillBeGarbageCollectedFinalized<PerformanceTiming>, public ScriptWrappable, public DOMWindowProperty {
+    DEFINE_WRAPPERTYPEINFO();
 public:
     static PassRefPtrWillBeRawPtr<PerformanceTiming> create(LocalFrame* frame)
     {
@@ -87,6 +88,6 @@ private:
     unsigned long long monotonicTimeToIntegerMilliseconds(double) const;
 };
 
-}
+} // namespace blink
 
-#endif // !defined(PerformanceTiming_h)
+#endif // PerformanceTiming_h