Remove VTable-based binding integrity now that ScriptWrappable-based binding integrity is implement…

Source/bindings/tests/results/V8TestException.cpp

Index: Source/bindings/tests/results/V8TestException.cpp
diff --git a/Source/bindings/tests/results/V8TestException.cpp b/Source/bindings/tests/results/V8TestException.cpp
index 67e703a39bc2dea91f170fbe434cdac75c94caf3..1aed9bc7a25615ec67c5d516ee0e70173cb9e594 100644
--- a/Source/bindings/tests/results/V8TestException.cpp
+++ b/Source/bindings/tests/results/V8TestException.cpp
@@ -31,40 +31,8 @@
 #include "core/page/Frame.h"
 #include "wtf/UnusedParam.h"
 
-#if ENABLE(BINDING_INTEGRITY)
-#if defined(OS_WIN)
-#pragma warning(disable: 4483)
-extern "C" { extern void (*const __identifier("??_7TestException@WebCore@@6B@")[])(); }
-#else
-extern "C" { extern void* _ZTVN7WebCore13TestExceptionE[]; }
-#endif
-#endif // ENABLE(BINDING_INTEGRITY)
-
 namespace WebCore {
 
-#if ENABLE(BINDING_INTEGRITY)
-// This checks if a DOM object that is about to be wrapped is valid.
-// Specifically, it checks that a vtable of the DOM object is equal to
-// a vtable of an expected class.
-// Due to a dangling pointer, the DOM object you are wrapping might be
-// already freed or realloced. If freed, the check will fail because
-// a free list pointer should be stored at the head of the DOM object.
-// If realloced, the check will fail because the vtable of the DOM object
-// differs from the expected vtable (unless the same class of DOM object
-// is realloced on the slot).
-inline void checkTypeOrDieTrying(TestException* object)
-{
-    void* actualVTablePointer = *(reinterpret_cast<void**>(object));
-#if defined(OS_WIN)
-    void* expectedVTablePointer = reinterpret_cast<void*>(__identifier("??_7TestException@WebCore@@6B@"));
-#else
-    void* expectedVTablePointer = &_ZTVN7WebCore13TestExceptionE[2];
-#endif
-    if (actualVTablePointer != expectedVTablePointer)
-        CRASH();
-}
-#endif // ENABLE(BINDING_INTEGRITY)
-
 #if defined(OS_WIN)
 // In ScriptWrappable, the use of extern function prototypes inside templated static methods has an issue on windows.
 // These prototypes do not pick up the surrounding namespace, so drop out of WebCore as a workaround.
@@ -152,10 +120,6 @@ v8::Handle<v8::Object> V8TestException::createWrapper(PassRefPtr<TestException>
     ASSERT(impl.get());
     ASSERT(DOMDataStore::getWrapper(impl.get(), isolate).IsEmpty());
 
-#if ENABLE(BINDING_INTEGRITY)
-    checkTypeOrDieTrying(impl.get());
-#endif
-
     v8::Handle<v8::Object> wrapper = V8DOMWrapper::createWrapper(creationContext, &info, impl.get(), isolate);
     if (UNLIKELY(wrapper.IsEmpty()))
         return wrapper;