ACPT-493: Upload csv with request parameter

Author: aa-kashk

app/code/Magento/ImportExport/Model/Import/Source/Base64EncodedCsvData.php

@@ -21,13 +21,6 @@ class Base64EncodedCsvData extends AbstractSource
      */
     private $delimiter = ',';
 
-    /**
-     * Field Enclosure character
-     *
-     * @var string
-     */
-    private $enclosure = '';
-
     /**
      * Read Data and detect column names
      *
@@ -48,7 +41,7 @@ public function __construct(string $file)
      *
      * @return array
      */
-    protected function _getNextRow()
+    public function _getNextRow()
     {
         if ($this->_key===count($this->rows)) {
             return [];

app/code/Magento/ImportExport/Model/Source/Upload.php

@@ -43,7 +43,7 @@ class Upload
     /**
      * @var WriteInterface
      */
-    protected $_varDirectory;
+    private $varDirectory;
 
     /**
      * @param FileTransferFactory $httpFactory