Refine the logic to handle the device path info get from string token.

Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13632 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Universal/SetupBrowserDxe/Ui.h

@@ -1028,4 +1028,17 @@ EvaluateExpressionList (
   IN FORM_BROWSER_FORM    *Form OPTIONAL
   );
 
+/**
+  Transfer the device path string to binary format.
+
+  @param   StringPtr     The device path string info.
+
+  @retval  Device path binary info.
+
+**/
+EFI_DEVICE_PATH_PROTOCOL *
+ConvertDevicePathFromText (
+  IN CHAR16  *StringPtr
+  );
+
 #endif // _UI_H