...de/Magento/Authorizenet/Controller/Directpost/Payment.php

app/code/Magento/Authorizenet/Model/Directpost.php

app/code/Magento/Backend/Model/Session/Quote.php

...ode/Magento/Backend/Test/Unit/Model/Session/QuoteTest.php

app/code/Magento/Braintree/Test/Unit/Model/CheckoutTest.php

app/code/Magento/Captcha/Block/Captcha.php

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

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

app/code/Magento/Checkout/Controller/Onepage.php

app/code/Magento/Checkout/Model/Cart.php

app/code/Magento/Checkout/Model/Cart/CollectQuote.php

app/code/Magento/Checkout/Model/DefaultConfigProvider.php

...ento/Checkout/Model/GuestPaymentInformationManagement.php

app/code/Magento/Checkout/Model/Session.php

.../Magento/Checkout/Model/ShippingInformationManagement.php

app/code/Magento/Checkout/Model/Type/Onepage.php

...nto/Checkout/Test/Unit/Controller/Cart/CouponPostTest.php

...Test/Unit/Model/GuestPaymentInformationManagementTest.php

app/code/Magento/Checkout/Test/Unit/Model/SessionTest.php

...out/Test/Unit/Model/ShippingInformationManagementTest.php