MAGETWO-33609: pull request for stories in this sprint

 - update FormKey/Validator ref

Author: Dale Sikkema

app/code/Magento/Checkout/Controller/Cart/Index.php

@@ -21,7 +21,7 @@ class Index extends \Magento\Checkout\Controller\Cart
      * @param \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig
      * @param \Magento\Checkout\Model\Session $checkoutSession
      * @param \Magento\Framework\Store\StoreManagerInterface $storeManager
-     * @param \Magento\Core\App\Action\FormKeyValidator $formKeyValidator
+     * @param \Magento\Framework\Data\Form\FormKey\Validator $formKeyValidator
      * @param \Magento\Checkout\Model\Cart $cart
      * @param \Magento\Framework\Controller\Result\RedirectFactory $resultRedirectFactory
      * @param \Magento\Framework\View\Result\PageFactory $resultPageFactory
@@ -31,7 +31,7 @@ public function __construct(
         \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig,
         \Magento\Checkout\Model\Session $checkoutSession,
         \Magento\Framework\Store\StoreManagerInterface $storeManager,
-        \Magento\Core\App\Action\FormKeyValidator $formKeyValidator,
+        \Magento\Framework\Data\Form\FormKey\Validator $formKeyValidator,
         \Magento\Checkout\Model\Cart $cart,
         \Magento\Framework\Controller\Result\RedirectFactory $resultRedirectFactory,
         \Magento\Framework\View\Result\PageFactory $resultPageFactory