void OnPurchaseFailedValidation(IAB.Purchase purchase, string purchaseData, string purchaseSignature)
{
currentPurchase = new Purchase(currentProduct, purchase.OrderId, TransactionStatus.Failed);
SetResultAndReset(currentPurchase);
}
void OnProductPurchased(int response, IAB.Purchase purchase, string purchaseData, string purchaseSignature)
{
currentPurchase = new Purchase(currentProduct, purchase.OrderId, TransactionStatus.Purchased);
inAppSvc.BillingHandler.ConsumePurchase(purchase);
}