[WIP] bindings: Introduce PropertyBag

Source/bindings/tests/results/V8TestInterfaceEmpty.h

Index: Source/bindings/tests/results/V8TestInterfaceEmpty.h
diff --git a/Source/bindings/tests/results/V8TestInterfaceEmpty.h b/Source/bindings/tests/results/V8TestInterfaceEmpty.h
index eac2034c8e20913d3d98275442a34ff534d7aac4..ab96833992cbd660aee02f72922c91810fc27432 100644
--- a/Source/bindings/tests/results/V8TestInterfaceEmpty.h
+++ b/Source/bindings/tests/results/V8TestInterfaceEmpty.h
@@ -7,6 +7,7 @@
 #ifndef V8TestInterfaceEmpty_h
 #define V8TestInterfaceEmpty_h
 
+#include "bindings/core/v8/PropertyBagTraits.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8DOMWrapper.h"
@@ -125,5 +126,10 @@ inline void v8SetReturnValueFast(const CallbackInfo& callbackInfo, PassRefPtr<Te
     v8SetReturnValueFast(callbackInfo, impl.get(), wrappable);
 }
 
+template <>
+struct PropertyBagTraits<TestInterfaceEmpty> {
+    typedef V8TestInterfaceEmpty type;
+};
+
 } // namespace blink
 #endif // V8TestInterfaceEmpty_h