Merge branch 'PR-3' of github.corp.magento.com:magento-dragons/magento2ce into PR-3

Author: igrybkov

dev/tests/static/testsuite/Magento/Test/Legacy/_files/obsolete_classes.php

@@ -4221,4 +4221,6 @@
     ['Magento\Braintree\Test\Unit\Observer\DeleteBraintreeCustomerTest'],
     ['Magento\Braintree\Test\Unit\Observer\ProcessBraintreeAddressTest'],
     ['Magento\Braintree\Test\Unit\Observer\ProcessBraintreePaymentTest'],
+    ['Magento\Catalog\Model\Webapi\Product\Option\Type\File\Validator'],
+    ['Magento\Catalog\Test\Unit\Webapi\Product\Option\Type\File\ValidatorTest'],
 ];