IDL: Add PropertyBag class

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 584f381a17010aff85f93e7f0a5e2225cccf76a5..6d7b49d29240b0d1c82db0df9f43b1f89a20ec0a 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/PropertyBag.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8DOMWrapper.h"
@@ -123,5 +124,10 @@ 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