/checkout /checkout/sidebar Magento\Checkout\CustomerData\Cart Magento\Checkout\CustomerData\DirectoryData checkout-data cart-data Magento\Checkout\CustomerData\DefaultItem Magento\Checkout\Model\DefaultConfigProvider Magento\Checkout\Model\Cart\CheckoutSummaryConfigProvider Magento\Checkout\Block\Checkout\LayoutProcessor Magento\Checkout\Block\Checkout\TotalsProcessor Magento\Checkout\Block\Checkout\DirectoryDataProcessor Magento\Framework\Serialize\Serializer\JsonHexTag Magento\Checkout\Block\Cart\CartTotalsProcessor Magento\Checkout\Block\Cart\LayoutProcessor form_key custom_price \Magento\Framework\View\Element\Message\Renderer\BlockRenderer::CODE Magento_Checkout::messages/addCartSuccessMessage.phtml