Version: 51, 54
OS: OS X 10.11.5

What steps will reproduce the problem?
data:text/html;charset=utf8,<center dir="rtl"><select><option>a</option><option>abcdefgabcdefgabcdefgabcdefg</option>
Open select dropdown

What is the expected output?
Having the dropdown on right place, just like Safari

What do you see instead?
It is shifted just because the option place is flipped because of RTL