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

Source/bindings/tests/results/V8TestInterfaceNode.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file has been auto-generated by code_generator_v8.py. DO NOT MODIFY!
 
 #ifndef V8TestInterfaceNode_h
 #define V8TestInterfaceNode_h
 
 #include "bindings/tests/idls/TestInterfaceNode.h"
@@ skipping 11 matching lines @@
     static v8::Handle<v8::Object> findInstanceInPrototypeChain(v8::Handle<v8::Value>, v8::Isolate*);
     static v8::Handle<v8::FunctionTemplate> domTemplate(v8::Isolate*);
     static TestInterfaceNode* toNative(v8::Handle<v8::Object> object)
     {
         return fromInternalPointer(object->GetAlignedPointerFromInternalField(v8DOMWrapperObjectIndex));
     }
     static TestInterfaceNode* toNativeWithTypeCheck(v8::Isolate*, v8::Handle<v8::Value>);
     static const WrapperTypeInfo wrapperTypeInfo;
     static void derefObject(void*);
     static EventTarget* toEventTarget(v8::Handle<v8::Object>);
+#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(TestInterfaceNode* impl)
     {
         return V8Node::toInternalPointer(impl);
     }
 
     static inline TestInterfaceNode* fromInternalPointer(void* object)
     {
         return static_cast<TestInterfaceNode*>(V8Node::fromInternalPointer(object));
     }
     static void installPerContextEnabledProperties(v8::Handle<v8::Object>, TestInterfaceNode*, v8::Isolate*) { }
@@ skipping 79 matching lines @@
 }
 
 template<class CallbackInfo, class Wrappable>
 inline void v8SetReturnValueFast(const CallbackInfo& callbackInfo, PassRefPtrWillBeRawPtr<TestInterfaceNode> impl, Wrappable* wrappable)
 {
     v8SetReturnValueFast(callbackInfo, impl.get(), wrappable);
 }
 
 }
 #endif // V8TestInterfaceNode_h