void V8WrapperInstantiationScope::convertException()
{
    v8::Isolate* isolate = m_context->GetIsolate();
    // TODO(jochen): Currently, Location is the only object for which we can reach this code path. Should be generalized.
    ExceptionState exceptionState(ExceptionState::ConstructionContext, "Location", isolate->GetCurrentContext()->Global(), isolate);
    LocalDOMWindow* callingWindow = callingDOMWindow(isolate);
    DOMWindow* targetWindow = toDOMWindow(m_context);
    exceptionState.throwSecurityError(targetWindow->sanitizedCrossDomainAccessErrorMessage(callingWindow), targetWindow->crossDomainAccessErrorMessage(callingWindow));
    exceptionState.throwIfNeeded();
}
static void failedAccessCheckCallbackInMainThread(v8::Local<v8::Object> host, v8::AccessType type, v8::Local<v8::Value> data)
{
    v8::Isolate* isolate = v8::Isolate::GetCurrent();
    Frame* target = findFrame(isolate, host, data);
    if (!target)
        return;
    DOMWindow* targetWindow = target->domWindow();

    // FIXME: We should modify V8 to pass in more contextual information (context, property, and object).
    ExceptionState exceptionState(ExceptionState::UnknownContext, 0, 0, isolate->GetCurrentContext()->Global(), isolate);
    exceptionState.throwSecurityError(targetWindow->sanitizedCrossDomainAccessErrorMessage(currentDOMWindow(isolate)), targetWindow->crossDomainAccessErrorMessage(currentDOMWindow(isolate)));
    exceptionState.throwIfNeeded();
}