Don't add extra 8 byte to DOM wrappers in non-oilpan builds

Source/bindings/tests/results/V8TestInterfaceEventConstructor.h

Index: Source/bindings/tests/results/V8TestInterfaceEventConstructor.h
diff --git a/Source/bindings/tests/results/V8TestInterfaceEventConstructor.h b/Source/bindings/tests/results/V8TestInterfaceEventConstructor.h
index edede850fa3cd38ea6d655254a8e84360d2b6966..8e7d738ef7852d2148f9de3c9d0398c6461e7ee1 100644
--- a/Source/bindings/tests/results/V8TestInterfaceEventConstructor.h
+++ b/Source/bindings/tests/results/V8TestInterfaceEventConstructor.h
@@ -30,8 +30,12 @@ public:
     static const WrapperTypeInfo wrapperTypeInfo;
     static void derefObject(void*);
     static void constructorCallback(const v8::FunctionCallbackInfo<v8::Value>&);
+#if ENABLE(OILPAN)
     static const int persistentHandleIndex = v8DefaultWrapperInternalFieldCount + 0;
-    static const int internalFieldCount = v8DefaultWrapperInternalFieldCount + 1;
+    static const int internalFieldCount = v8DefaultWrapperInternalFieldCount + 0 + 1;
+#else
+    static const int internalFieldCount = v8DefaultWrapperInternalFieldCount + 0;
+#endif
     static inline void* toInternalPointer(TestInterfaceEventConstructor* impl)
     {
         return V8Event::toInternalPointer(impl);